CN104386585A - Tilting driving control device for RTG lifting appliance - Google Patents
Tilting driving control device for RTG lifting appliance Download PDFInfo
- Publication number
- CN104386585A CN104386585A CN201410742127.0A CN201410742127A CN104386585A CN 104386585 A CN104386585 A CN 104386585A CN 201410742127 A CN201410742127 A CN 201410742127A CN 104386585 A CN104386585 A CN 104386585A
- Authority
- CN
- China
- Prior art keywords
- trim
- rtg
- control device
- driving control
- frequency converter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/22—Control systems or devices for electric drives
- B66C13/30—Circuits for braking, traversing, or slewing motors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
- B66C13/085—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions electrical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/48—Automatic control of crane drives for producing a single or repeated working cycle; Programme control
Abstract
The invention relates to a tilting driving control device for an RTG lifting appliance. The tilting driving control device for the RTG lifting appliance comprises a PLC, a frequency converter cabinet, a TRIM motor, a TRIM motor brake, a braking resistance box and a clockwise and anticlockwise rotation extreme limiting switch, wherein an incremental encoder is arranged in the TRIM motor; the TRIM motor is driven by a frequency converter; the frequency converter can be used for automatically recording a pulse signal output by the incremental encoder. The tilting driving control device for the RTG lifting appliance has the advantages that the frequency converter is used for controlling the TRIM motor, so that the TRIM motor executes smooth driving, redundant auxiliary power supply capacity of an RTG is reduced, and the influence on other sets of electrical equipment caused by operation of the TRIM motor is alleviated; after the TRIM motor is started to operate, the frequency converter can be used for automatically recording the pulse number of the incremental encoder, and the TRIM motor is subjected to position control according to the pulse number, so that the precision of position control on a TRIM can be improved, the onerous operation steps of a driver on a TRIM mechanism can be reduced, and the working efficiency is improved.
Description
Technical field
The present invention relates to a kind of RTG suspender inclining rotary mechanism, specifically, is that a kind of RTG suspender verts driving control device.
Background technology
At present, the suspender inclining rotary mechanism (hereinafter referred TRIM) of tire type gantry crane adopts direct Starting mode substantially, and turning motor power is 10 ~ 15KW substantially.When heavy duty, direct startup can produce the starting current of 7 ~ 8 times of rated current, starting current is larger, start immediate current and can cause very large impact to auxiliary transformer and auxiliary converter, and other consumer short time can be in underexcitation, influential system illumination and components and parts life-span, comparatively fast also can produce very large impact to physical construction because rotating speed promotes during TRIM electric motor starting in addition, vibration obviously; For guaranteeing the normal startup of TRIM motor, auxiliary supply transformer and auxiliary power supply frequency converter all want capacity increasing, increase the cost of equipment.
In addition, the position limitation that at present most suspenders verts is controlled by proximity switch, this by returning after causing TRIM to rise with decline after return in angle have certain deviation, and in returning, position can not flexible.
About can smooth drive TRIM motor the suspender inclining rotary mechanism that TRIM returns middle particularity can be improved, yet there are no report.
Summary of the invention
The object of the invention is for deficiency of the prior art, provide a kind of RTG suspender to vert driving control device.
For achieving the above object, the technical scheme that the present invention takes is:
A kind of RTG suspender verts driving control device, and the described RTG suspender driving control device that verts comprises PLC, frequency-charger cabinet, TRIM motor, TRIM electromotor brake, braking resistor box, rotating limit limit switch.
Described PLC is connected with frequency-charger cabinet, rotating limit limit switch respectively.
Described frequency-charger cabinet is connected with TRIM motor, TRIM electromotor brake and braking resistor box, described frequency-charger cabinet is provided with frequency converter and auxiliary transformer, described frequency converter drives TRIM motor by closed-loop vector mode, and described auxiliary transformer provides 380V, 50/60HZ accessory feed.
Described TRIM motor internal is provided with incremental encoder, described incremental encoder output pulse signal to frequency converter, the automatic recording impulse number of frequency converter.
It is spacing spacing with smallest limit that described rotating limit limit switch is provided with limes superiors.
Described TRIM is suspender inclining rotary mechanism, and TRIM motor is the motor that verts.
The invention has the advantages that:
1, the present invention is by Frequency Converter Control TRIM motor, and TRIM motor can be made smoothly to drive, and reduces the auxiliary power supply capacity that RTG is unnecessary, reduces the impact on other electrical equipments when TRIM motor runs.
2, after TRIM electric motor starting runs, the number of pulses of the automatic recording increment coder of frequency converter, carries out position control by pulse count to TRIM motor, can improve the precision of the position control of TRIM, reduce the lengthy and tedious operation of driver personnel in TRIM mechanism, increase work efficiency.
Accompanying drawing explanation
Accompanying drawing 1 is that a kind of RTG suspender of the present invention verts the constructional drawing of driving control device.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention provided by the invention is elaborated.
Please refer to Fig. 1, Fig. 1 is that a kind of RTG suspender of the present invention verts the constructional drawing of driving control device.The described RTG suspender driving control device that verts comprises PLC, frequency-charger cabinet, TRIM motor, TRIM electromotor brake, braking resistor box, rotating limit limit switch; Described PLC is connected with frequency-charger cabinet, rotating limit limit switch respectively; Described frequency-charger cabinet is connected with TRIM motor, TRIM electromotor brake and braking resistor box, described frequency-charger cabinet is provided with frequency converter and auxiliary transformer, described frequency converter drives TRIM motor by closed-loop vector mode, and described auxiliary transformer provides 380V, 50/60HZ accessory feed; Described TRIM motor internal is provided with incremental encoder, described incremental encoder output pulse signal to frequency converter, the automatic recording impulse number of frequency converter, PLC carries out position control by pulse count to TRIM motor; It is spacing spacing with smallest limit that described rotating limit limit switch is provided with limes superiors.
It should be noted that, TRIM mentioned herein is suspender inclining rotary mechanism, and TRIM motor is the motor that verts.
Using method of the present invention is:
Add at RTG dolly and increase TRIM frequency-charger cabinet and braking resistor box, the TRIM motor that routine uses is replaced with built-in incremental encoder motor, TRIM electromotor brake is directly controlled to change to frequency converter by PLC and exports control, change corresponding wiring, just can complete described RTG suspender and to vert the transformation of driving control device.
When RTG is in heavy service, RTG device Host PLC sends control command to frequency converter, frequency converter drives TRIM motor by closed-loop vector mode, TRIM motor can steadily drive, after TRIM electric motor starting runs, incremental encoder syncout pulse signal is to frequency converter, the automatic recording impulse number of frequency converter, and then record motor rotating cycle, PLC is controlled by the position of pulse count to TRIM motor, when TRIM returns middle order execution, can accurately return original meta.The present invention is by transducer drive TRIM motor, the smooth starting of TRIM motor can be made, the auxiliary power supply capacity that RTG is unnecessary can be reduced, reduce the impact of TRIM operation on other electrical equipments, PLC carries out position control by pulse count to TRIM motor simultaneously, the precision of the position control of TRIM can be improved, reduce the lengthy and tedious operation of driver personnel in TRIM mechanism, increase work efficiency.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the inventive method; can also make some improvement and supplement, these improve and supplement and also should be considered as protection scope of the present invention.
Claims (6)
1. RTG suspender verts a driving control device, it is characterized in that, the described RTG suspender driving control device that verts comprises PLC, frequency-charger cabinet, TRIM motor, TRIM electromotor brake, braking resistor box, rotating limit limit switch.
2. RTG suspender according to claim 1 verts driving control device, and it is characterized in that, described PLC is connected with frequency-charger cabinet, rotating limit limit switch respectively.
3. RTG suspender according to claim 1 verts driving control device, it is characterized in that, described frequency-charger cabinet is connected with TRIM motor, TRIM electromotor brake and braking resistor box, described frequency-charger cabinet is provided with frequency converter and auxiliary transformer, described frequency converter drives TRIM motor by closed-loop vector mode, and described auxiliary transformer provides 380V, 50/60HZ accessory feed.
4. RTG suspender according to claim 1 verts driving control device, and it is characterized in that, described TRIM motor internal is provided with incremental encoder, described incremental encoder output pulse signal to frequency converter, the automatic recording impulse number of frequency converter.
5. RTG suspender according to claim 1 verts driving control device, it is characterized in that, described rotating limit limit switch is provided with that limes superiors is spacing and smallest limit is spacing.
6. the RTG suspender according to claim 1-5 verts driving control device, and it is characterized in that, described TRIM is suspender inclining rotary mechanism, and TRIM motor is the motor that verts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410742127.0A CN104386585A (en) | 2014-12-08 | 2014-12-08 | Tilting driving control device for RTG lifting appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410742127.0A CN104386585A (en) | 2014-12-08 | 2014-12-08 | Tilting driving control device for RTG lifting appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104386585A true CN104386585A (en) | 2015-03-04 |
Family
ID=52604569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410742127.0A Pending CN104386585A (en) | 2014-12-08 | 2014-12-08 | Tilting driving control device for RTG lifting appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104386585A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1565956A (en) * | 2003-06-25 | 2005-01-19 | 上海振华港口机械（集团）股份有限公司 | Electrical control system for assembling field bridge of rubber tyred gantry crane |
| CN203612836U (en) * | 2013-07-30 | 2014-05-28 | 法兰泰克重工股份有限公司 | Multi-crane hoisting control device |
| CN203865864U (en) * | 2014-06-03 | 2014-10-08 | 上海科轻起重机有限公司 | Intelligent anti-sway system for crane |
-
2014
- 2014-12-08 CN CN201410742127.0A patent/CN104386585A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1565956A (en) * | 2003-06-25 | 2005-01-19 | 上海振华港口机械（集团）股份有限公司 | Electrical control system for assembling field bridge of rubber tyred gantry crane |
| CN203612836U (en) * | 2013-07-30 | 2014-05-28 | 法兰泰克重工股份有限公司 | Multi-crane hoisting control device |
| CN203865864U (en) * | 2014-06-03 | 2014-10-08 | 上海科轻起重机有限公司 | Intelligent anti-sway system for crane |
Non-Patent Citations (1)
| Title |
|---|
| 陈国章: "新型集装箱吊具的研究", 《中国机械工程学会物料搬运专业学会第三届年会论文集》 * |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150304 |