CN2194348Y - Automatic corrector for bridge crane - Google Patents
Automatic corrector for bridge crane Download PDFInfo
- Publication number
- CN2194348Y CN2194348Y CN 94226396 CN94226396U CN2194348Y CN 2194348 Y CN2194348 Y CN 2194348Y CN 94226396 CN94226396 CN 94226396 CN 94226396 U CN94226396 U CN 94226396U CN 2194348 Y CN2194348 Y CN 2194348Y
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- CN
- China
- Prior art keywords
- rail
- crane
- gnaw
- automatic
- wheel
- 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.)
- Expired - Fee Related
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- Control And Safety Of Cranes (AREA)
Abstract
The utility model belongs to the electromechanical technical field, which is characterized in that the utility model utilizes a rail gnawing signal detector and a control cabinet of an automatic rail gnawing deviation correcting system to carry out the automatic diagnosis, the automatic detection and the automatic deviation correction of the rail gnawing phenomenon of a bridge crane so as to avoid generating the rail gnawing phenomenon; therefore, the utility model has the advantages of saving spare parts, reducing labor intensity, electromechanical failures and electric power consumption, and improving the operation rate of equipment, and can be widely used for various rail type cranes.
Description
The crane in bridge type automatic deviation rectifying device belongs to the mechanical ﹠ electrical technology field.
Crane in bridge type also claims rail formula hoisting crane, and it is to rely on the Orbiting hoisting crane of wheel of having chance with.Rigidity is low because the crane span structure span is big for present domestic crane in bridge type, and the manufacturing setting accuracy of transmission device is difficult to guarantee that particularly move frequent crane in bridge type, its accumulated error is bigger.Therefore, sideslip is in various degree all arranged on most of crane in bridge type or gnaw the rail phenomenon, also be called the side phenomenon of likeing.Can not find obvious problem from electromechanics and track, and the always amesiality operation of hoisting crane, so wheel rim and track side surfaces serious wear.To have more than 90% be because wheel wear to the wheel changed of crane in bridge type according to statistics, and it is because side wear that the rail of being scrapped has more than 80%.The wheel mean life general only one year about, short only is 3 to 6 months, and the tread of wheel can be used safely more than 3 years.Hoisting crane can not keep linear running, just certainly leads to shift phenomenon, rail occurs gnawing.Can find significantly from theory and practice, the deflection operation of hoisting crane is nothing more than following three kinds of situations, be that hoisting crane is amesiality, the so-called side phenomenon of likeing, the wheel of one side all is that inboard wheel rim is gnawed rail, the wheel of opposite side then all is that outer rim is gnawed rail, and the different wearing and tearing of weight all take place the whole wheels of hoisting crane; The 2nd, the operation of hoisting crane is arc shaped, and promptly different positions and service direction produce the wheel gnawing rail on the diverse location; The 3rd, the operation and the track centerline of hoisting crane are not parallel, the wheel gnawing rail on a certain diagonal line occurs, and the wheel on another diagonal line is normal or have only slight scratch.Because hoisting crane is gnawed the ubiquity of rail problem, quite serious again to the equipment influence, therefore for solving the rail problem of gnawing, carried out many-sided research both at home and abroad and repaid examination, as adopting the horizontal card wheel, strengthening lubricated, wheel or the like the scheme that adopts the bipyramid face wheel, adopt type of drive respectively and adopt the circular cone tread between wheel rim and the track.But all be passive no preventative method, fundamentally do not deal with problems.
The purpose of this utility model is crane in bridge type to be gnawed rail carry out automatic compensation and correction, thereby improves the hoisting crane operation factor.
Technology contents of the present utility model is, at four angles of crane in bridge type, near on the car body of track inboard a support is installed respectively, installs one and gnaw the rail signal detector on each support.For adapting to the environment that hoisting crane moves and vibrates, to gnaw rail signal detector element and select LJ5 series integrated circuit near switch, this element can be realized the non-contact detecting to steel members, the displacement of magnetic conduction object can be transformed into the switching value signal of the capable one-tenth of electric weight.Consider the difference of height of rail joint and the sensitivity of on-off effect, select diameter phi 30mm for use, its active distance is 15mm.When this element was installed on support, its line of centers was 5mm with the wheel rim distance, with raceway surface apart from being 10mm.When crane locomotive wheel rim and track side surfaces during, then gnaw the rail signal detector and send signal and pass to and gnaw rail automatic deviation correction control housing at a distance of 5mm.Control housing is installed on the suitable position of car body, control housing by the signal aspect and indication panel, gnaw rail signaling control unit, PC programmable controller, correction output control unit and running state detecting unit and form.The signal aspect and indication panel is made up of a plurality of signal lamps, indicates, gnaws compositions such as the indication of rail signal, diagnosis indication and power supply indication as running state.Gnaw the rail signaling control unit and mainly receive and gnaw rail signal that signal detector sends, after isolating, send PC programmable controller and signal aspect and indication panel to.PC programmable controller model is F1-40MR, and Mitsubishi product, this element have 24 entrance points, 16 output points, can fully satisfy the requirement of correction logic control input.The correction output control unit is accepted PC programmable controller output indication, carries out the control that hoisting crane is moved control panel by relay control element in this unit, and with the output electromagnetic torque of control operation motor, the correction of realization system is adjusted.The running state detecting unit mainly is that the mode of operation to crane travel mechanism detects, and as signals such as motor service direction, running velocity, gears, sends PC programmable controller and signal aspect and indication panel to.
When the hoisting crane wheel is walked in orbit, when wheel center line and track centerline generation certain deviation, that is to say when crane locomotive wheel rim and track side surfaces during at a distance of 5mm, gnaw rail signal automatic detection system and obtain to gnaw the rail signal, export to the correction logic control system through after the filtering, simultaneously operating unit mode of operation checking system detects signals such as the rotating of operation, speed stages at any time, and exports to the correction logic control system.The correction logic control system carries out logic analysis to the information of gnawing rail signal detection and operating unit mode of operation detection two large divisions input, determines to rectify a deviation and adjusts signal, and export to operation control system, makes left and right sides motor output torque generation difference.Left and right sides motor output torque produces difference and promptly produces adjustment force, has made to such an extent that the machine operation conditions is corrected automatically.When gnawing one disappearance of rail signal, the system for automatically correcting no-output, hoisting crane is by original mode operation, and left and right sides motor output torque equates.
A kind of crane in bridge type of being made up of wheel, car body and track etc. is characterized in that, gnaws the rail signal detector at four angles of hoisting crane near being equipped with on the car body of track inboard, is equipped with on the car body appropriate location and gnaws rail system for automatically correcting control housing; Gnaw in the rail system for automatically correcting control housing signal aspect and indication panel be installed, gnaw rail signaling control unit, PC programmable controller, correction output control unit and running state detecting unit.
Advantage of the present utility model, be automatic diagnosis, detect and the rail problem of gnawing of the solution crane in bridge type of automatic deviation correction automatically, thereby saved standby redundancy, reduced labor intensity, reduced functional failure of electromechanical, reduced power consumption, reduced time of casualty, improve operation rate, can be widely used in and adopt the rail formula hoisting crane of type of drive respectively.
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is crane in bridge type automatic deviation rectifying device figure.It by gnaw rail signal detector 1, support 2, track 3, wheel 4, wheel rim 5, vehicle body 6, gnaw rail system for automatically correcting control housing 7, running state detecting unit 8, PC programmable controller 9, correction are adjusted output control unit 10, gnaw rail signaling control unit 11 and signal aspect and indication panel 12 etc. forms.
When the hoisting crane forward turns round, come signal as the left front, can gnaw rail on the left of confirming, then PC programmable controller 9 sends following correction instruction according to operational taps:
1. when the work gear is one grade, this moment, accelerating contactor was not all worked, motor moves being pressed under whole resistance situations, first section resistance of correction instruction indication left motor excision, make the left motor electromagnetic torque greater than right motor, produce correction power immediately and make hoisting crane break away from deflected condition, behind the blackout of left front, the correction instruction stops, the operation of both sides motor synchronous;
2. when the work gear is second grade, this moment, the both sides motor excised first section resistance, and the correction instruction changes first section resistance of right motor excision into and do not excise resistance, makes the left motor electromagnetic torque greater than right motor, produce correction power and make hoisting crane break away from deflected condition, eliminate until gnawing the rail signal;
3. when the work gear is third gear, second section resistance of both sides motor excision this moment, the correction instruction makes right motor be changed into by second section resistance of excision and only excises one section resistance, the left motor electromagnetic torque is greater than right motor like this, produce correction power and make hoisting crane break away from deflected condition, eliminate until gnawing the rail signal;
4. when the work gear is fourth speed, this moment, the both sides motor excised the 3rd section resistance, the correction instruction makes right motor be changed into by the 3rd section resistance of excision and only excises second section resistance, the left motor electromagnetic torque is greater than right motor like this, produce correction power and make hoisting crane break away from deflected condition, eliminate until gnawing the rail signal.
Same principle is come signal as the right front, represents that then the right side gnaws rail, and the correction logic control will be carried out rectifying a deviation with upper type, make the right motor electromagnetic torque greater than the left side, produce correction power and make hoisting crane break away from deflected condition.
When the hoisting crane inverted running, the correction logic control system receives only also that operation the place ahead comes gnaws the rail signal, and the signal that promptly left and right the place ahead is come is realized hoisting crane correction control by aforesaid way equally.
Claims (1)
1, a kind of crane in bridge type automatic deviation rectifying device of forming by wheel [4], car body [6] and track [3] etc., it is characterized in that, on the car body [6] of four angles of hoisting crane, be equipped with and gnaw rail signal detector [1], on car body [6], be equipped with and gnaw rail system for automatically correcting control housing [7] near track [3] inboard; Gnaw signal aspect and indication panel [12] be installed in the rail system for automatically correcting control housing [7], gnaw rail signaling control unit [11], PC programmable controller [9], correction output control unit [10] and running state detecting unit [8].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94226396 CN2194348Y (en) | 1994-03-18 | 1994-03-18 | Automatic corrector for bridge crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94226396 CN2194348Y (en) | 1994-03-18 | 1994-03-18 | Automatic corrector for bridge crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2194348Y true CN2194348Y (en) | 1995-04-12 |
Family
ID=33839371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94226396 Expired - Fee Related CN2194348Y (en) | 1994-03-18 | 1994-03-18 | Automatic corrector for bridge crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2194348Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102795543A (en) * | 2012-09-10 | 2012-11-28 | 三一集团有限公司 | Deviation rectification system, crane and deviation rectification method |
| CN112701213A (en) * | 2020-12-22 | 2021-04-23 | 杭州华新机电工程有限公司 | Preparation method of PVDF piezoelectric induction film, piezoelectric sensor and application of piezoelectric sensor in rail gnawing of crane |
-
1994
- 1994-03-18 CN CN 94226396 patent/CN2194348Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102795543A (en) * | 2012-09-10 | 2012-11-28 | 三一集团有限公司 | Deviation rectification system, crane and deviation rectification method |
| CN112701213A (en) * | 2020-12-22 | 2021-04-23 | 杭州华新机电工程有限公司 | Preparation method of PVDF piezoelectric induction film, piezoelectric sensor and application of piezoelectric sensor in rail gnawing of crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |