CN104692244A - Crane anti-rail-gnawing device - Google Patents
Crane anti-rail-gnawing device Download PDFInfo
- Publication number
- CN104692244A CN104692244A CN201310646803.XA CN201310646803A CN104692244A CN 104692244 A CN104692244 A CN 104692244A CN 201310646803 A CN201310646803 A CN 201310646803A CN 104692244 A CN104692244 A CN 104692244A
- Authority
- CN
- China
- Prior art keywords
- traveling crane
- overhead traveling
- crane
- wheel
- plc system
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
- B66C9/16—Travelling gear incorporated in or fitted to trolleys or cranes with means for maintaining alignment between wheels and track
-
- 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
- B66C13/16—Applications of indicating, registering, or weighing devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control And Safety Of Cranes (AREA)
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
Abstract
The invention relates to a crane anti-rail-gnawing device including four special displacement sensors, an analog quantity input module, an analog quantity output module, three proximity sensors, a PLC system, a signal line and a special sensor mounting bracket. The four displacement sensors are installed on the four corners of a crane for continuous real-time measurement of the relative distance value of a wheel and a track, then according to the measured value by use of the PLC system, frequency of each frequency converter of the crane can be changed in real time for control of the speed of each wheel of the crane, and ultimately the crane wheel always runs on the track centre.
Description
Technical field
The present invention relates to the preventing gnawing rail device of twin beam overhead bridge crane (being commonly called as overhead traveling crane), be applicable to the overhead traveling crane of the various tonnages that frequency control drives.
Background technology
Rise since that day that overhead traveling crane is born, gnaw rail and just occurred, this problem is not solved well so far.
Tradition thinks that the reason of gnawing rail has: wheel diameter is different, motor speed is inconsistent, track installation precision not, wheel setting accuracy not, band-type brake is adjusted bad, overhead traveling crane integral rigidity is poor, there track has greasy dirt produce skidding, Coupling Clearance to be too large etc., traditional solution is generally: it is the same that wheel diameter difference just changes diameter, motor speed is inconsistent just change consistent, trajectory accuracy is adjustment track etc. not just, facts have proved that these are far from being enough.
We think: width between centers and the straightness accuracy equidimension precision of overhead crane orbit are dynamic, these dimensional accuracies change along with depositing the change of high-temperature product position in seasonal variation, day and night temperature change and workshop, are also dynamic change in wheel operational process.
The principle that we solve that overhead traveling crane gnaws rail is: on four angles of overhead traveling crane, install four displacement pickups, the relative distance value of wheel and track can be measured continuously in real time, PLC system is utilized to change the frequency of each frequency converter of overhead traveling crane in real time according to observed reading again, and then the speed of travel difference of overhead traveling crane two ends wheel is controlled, one end that distance exceeds specified value implements to accelerate, implement to slow down in one end that distance is less than specified value, finally realize overhead traveling crane wheel and operate in orbit centre all the time, and utilize proximity transducer automatically to record and export Excel writing chart.
Facts have proved, effect of the present invention is good, can be reduced to less than 5% by gnawing rail rate, and after using the present invention, more the number of times of wheel change, replacing track can reduce by 75%, and then can greatly reduce overhead traveling crane maintenance cost.
Summary of the invention
The object of the invention is to gnaw rail problem in order to solve in overhead traveling crane operational process, reduce overhead traveling crane maintenance cost.For the overhead traveling crane that various tonnage frequency control drives, especially large for load, operation overhead traveling crane frequently, provides a kind of overhead traveling crane preventing gnawing rail device.
Content of the present invention is as follows:
Considering that overhead crane orbit is not absolute straight line, is dynamic change, considers that runway girder is elastomeric in addition, and the velocity contrast that therefore overhead traveling crane must realize two ends controls, and finally could realize the object of preventing gnawing rail.
The present invention includes four special displacement pickups, Analog input mModule, analog output module, three proximity transducers, PLC system, signal wire (SW) and sensor-specific mounting bracket.
The present invention is directed to that overhead traveling crane is operating gnaws rail problem, four displacement pickups are installed at four angles of overhead traveling crane, the relative distance value of wheel and track can be measured continuously in real time, its relative distance value enters PLC system by Analog input mModule, PLC system passes through program analysis, the frequency of each frequency converter of overhead traveling crane is changed again through analog output module, and then the speed of travel difference of overhead traveling crane two ends wheel is controlled, one end that distance exceeds specified value implements to accelerate, implement to slow down in one end that distance is less than specified value, finally realize overhead traveling crane wheel and operate in orbit centre all the time.
For achieving the above object, the distance value gathering wheel rim and track is responsible for by the displacement pickup be contained on overhead traveling crane cart corner, enters PLC system and carries out program computation, and determines that frequency converter exports numerical value and carries out the joint that withers; In one jiao of wheel face of overhead traveling crane cart, two proximity transducers are installed, the energizing signal of the data logging that moves forward and backward as overhead traveling crane at wheel face welding buting iron; Another proximity transducer to be arranged on overhead traveling crane cart bearing seat and towards overhead crane orbit beam, overhead crane orbit beam to arrange block, to correct the tracking signal of overhead traveling crane actual position.
Accompanying drawing explanation
Fig. 1 is principle schematic of the present invention
Fig. 2 is that sensor of the present invention installs master map
Fig. 3 is sensor installation side figure of the present invention
Code name in figure
1-slip side frequency converter, 2-PLC system and Analog input mModule and analog output module, 3-driver's side frequency converter, 4-motor, 5-displacement pickup, 6-displacement pickup, 7-displacement pickup, 8-displacement pickup, 9-proximity transducer, 10-proximity transducer, 11-proximity transducer, 12-buting iron, 13-block, 14-sensor stand one, 15-sensor stand two, 16-sensor stand three.
Detailed description of the invention
As shown in Figure 1, Figure 2, Figure 3 shows.
The cart of overhead traveling crane is driven motor A, B and C, the D of cart both sides respectively by frequency converter 1 and frequency converter 2.
The corner wheel of overhead traveling crane cart is other is provided with four displacement pickups by sensor stand 3 16, displacement pickup 5 respectively, displacement pickup 6, displacement pickup 7, displacement pickup 8, for measuring the distance of vehicle wheel rim edge sword track, and the numerical value of measurement is passed to PLC system 2 by Analog input mModule.
Installing two proximity transducers in one jiao of wheel face of overhead traveling crane cart by sensor stand 1, is proximity transducer 9 and proximity transducer 10, for recording the data that overhead traveling crane moves forward and backward respectively.Wheel face is welded the energizing signal of buting iron 12 as data logging.
Overhead traveling crane cart drive sprocket axle bearing, towards overhead crane orbit beam direction, is provided with proximity transducer 11 by sensor stand 2 15, and block 13 is set on overhead crane orbit beam, to correct the tracking signal of overhead traveling crane actual position.
The distance value gathering wheel rim and track is responsible for by the displacement pickup be contained on overhead traveling crane cart corner, enter PLC system 2 carry out program computation by simulating most load module, and determine that frequency converter exports numerical value, then through analog output module, each frequency converter of overhead traveling crane is regulated.
Displacement pickup 5, displacement pickup 6, displacement pickup 7, displacement pickup 8 utilizes sensor stand 3 16 to install, line of centers during installation should with the center of tread height heavy and, sensor front end face should with wheel end face, collide with to avoid four displacement pickup front end faces and track side surfaces.
Proximity transducer 9 and proximity transducer 10 utilize sensor stand 1 be loaded on passive axletree bearing subdivision bolt place and towards wheel, wheel face welded buting iron 12, and buting iron 12 is about 80mm.Buting iron 12 is 3mm with proximity transducer 9 and proximity transducer 10 front end face spacing.
Follow the tracks of and check block 13 and to be installed on track girder and the position often passed near overhead traveling crane, proximity transducer 11 to be installed in overhead traveling crane cart drive sprocket axle bearing and towards overhead crane orbit beam direction, the top of block 13.Block 13 and proximity transducer 11 front end face spacing are 10mm.
Site installation test process is as follows:
PLC system and control module are installed, displacement pickup and proximity transducer:
Input control program and monitor record program:
Record original data is filed, as the foundation of control effects contrast;
The software of this device is utilized to carry out data analysis;
Overhead traveling crane preventing gnawing rail device formally comes into operation.
Claims (2)
1. an overhead traveling crane preventing gnawing rail device, comprise four dedicated bit displacement sensors, Analog input mModule, analog output module, three proximity transducers, PLC system, signal wire (SW) and sensor-specific mounting bracket, four displacement pickups are equipped with at four angles that it is characterized in that overhead traveling crane, the relative distance value of wheel and track can be measured continuously in real time, its relative distance value enters PLC system by Analog input mModule, and PLC system by program analysis, then controls the frequency of each frequency converter in overhead traveling crane both sides through analog output module.
2. overhead traveling crane preventing gnawing rail fills toe according to claim 1, its characteristic is, described measurement wheel and the real-time distance of track be four displacement pickups, described in carry out real-time range data recording signal and what correct overhead traveling crane actual position signal is three proximity transducers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310646803.XA CN104692244A (en) | 2013-12-06 | 2013-12-06 | Crane anti-rail-gnawing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310646803.XA CN104692244A (en) | 2013-12-06 | 2013-12-06 | Crane anti-rail-gnawing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104692244A true CN104692244A (en) | 2015-06-10 |
Family
ID=53339873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310646803.XA Pending CN104692244A (en) | 2013-12-06 | 2013-12-06 | Crane anti-rail-gnawing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104692244A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106044557A (en) * | 2016-03-11 | 2016-10-26 | 张丙奇 | Novel crane crown block wheel structure with automatic deviation rectifying function |
| CN108408596A (en) * | 2018-05-10 | 2018-08-17 | 新乡市盛达重工机械有限公司 | A kind of double girder lifting hook portal cranes |
| CN109019323A (en) * | 2018-07-10 | 2018-12-18 | 大冶特殊钢股份有限公司 | It is a kind of to gnaw the wheel alignment and installation method that rail is corrected for driving a vehicle |
| CN112320585A (en) * | 2020-10-28 | 2021-02-05 | 湖南天桥嘉成智能科技有限公司 | Large-span unmanned crane track deviation rectifying device and method |
| CN115180519A (en) * | 2022-06-28 | 2022-10-14 | 厦门市特种设备检验检测院 | High-protection-performance safety detection device for hoisting machinery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1485264A (en) * | 2002-09-24 | 2004-03-31 | 徐传凯 | Rail-gnawing prevention device for double-track vehicle |
| CN2876040Y (en) * | 2006-03-02 | 2007-03-07 | 徐传凯 | Device for preventing gnawing rail of rail travelling crane |
| CN202245774U (en) * | 2011-08-31 | 2012-05-30 | 太原科技大学 | Device for preventing rail gnawing and derailment of crane |
| CN202864707U (en) * | 2012-05-18 | 2013-04-10 | 董新旺 | Rail-gnawing preventing device of crown block |
-
2013
- 2013-12-06 CN CN201310646803.XA patent/CN104692244A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1485264A (en) * | 2002-09-24 | 2004-03-31 | 徐传凯 | Rail-gnawing prevention device for double-track vehicle |
| CN2876040Y (en) * | 2006-03-02 | 2007-03-07 | 徐传凯 | Device for preventing gnawing rail of rail travelling crane |
| CN202245774U (en) * | 2011-08-31 | 2012-05-30 | 太原科技大学 | Device for preventing rail gnawing and derailment of crane |
| CN202864707U (en) * | 2012-05-18 | 2013-04-10 | 董新旺 | Rail-gnawing preventing device of crown block |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106044557A (en) * | 2016-03-11 | 2016-10-26 | 张丙奇 | Novel crane crown block wheel structure with automatic deviation rectifying function |
| CN108408596A (en) * | 2018-05-10 | 2018-08-17 | 新乡市盛达重工机械有限公司 | A kind of double girder lifting hook portal cranes |
| CN109019323A (en) * | 2018-07-10 | 2018-12-18 | 大冶特殊钢股份有限公司 | It is a kind of to gnaw the wheel alignment and installation method that rail is corrected for driving a vehicle |
| CN112320585A (en) * | 2020-10-28 | 2021-02-05 | 湖南天桥嘉成智能科技有限公司 | Large-span unmanned crane track deviation rectifying device and method |
| CN115180519A (en) * | 2022-06-28 | 2022-10-14 | 厦门市特种设备检验检测院 | High-protection-performance safety detection device for hoisting machinery |
| CN115180519B (en) * | 2022-06-28 | 2024-07-09 | 厦门市特种设备检验检测院 | Hoisting machinery safety detection device with high protection performance |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150610 |
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| RJ01 | Rejection of invention patent application after publication |