CN104787680A - Control device and control method for lifting height of crane - Google Patents
Control device and control method for lifting height of crane Download PDFInfo
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- CN104787680A CN104787680A CN201510211649.2A CN201510211649A CN104787680A CN 104787680 A CN104787680 A CN 104787680A CN 201510211649 A CN201510211649 A CN 201510211649A CN 104787680 A CN104787680 A CN 104787680A
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- control
- crane
- hoisting crane
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/54—Safety gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
- B66D1/40—Control devices
- B66D1/48—Control devices automatic
- B66D1/485—Control devices automatic electrical
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- Mechanical Engineering (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The embodiment of the invention provides a control device and a control method for the lifting height of a crane, which effectively improve the problem that the use safety of the crane needs to be improved in the prior art. The device in the embodiment of the invention is applied to the crane, the crane comprises a drum, and a drive device for controlling the lifting hook of the crane to ascend or descend, the control device for the lifting height of the crane comprises a control box, a control target and a turbo-worm reducer, one side of the turbo-worm reducer is connected with the drum, and the other side of the turbo-worm reducer is connected with a counting target; the counting target is connected with both of the control box and the drive device, and used for controlling the ascending or the descending of the lifting hook through the drive device according to the control instruction of the control box; the control target is connected with both of the control box and the drive device, and used for controlling the ascending or the descending of the lifting hook through the drive device according to the control instruction of the control box. The drive device for controlling the lifting hook of the crane is simple in structure, ingenious in design, capable of remarkably improving the use safety and reliability of the crane, convenient to implement, and easy to popularize and apply.
Description
Technical field
The present invention relates to control technology field, in particular to a kind of lifting height of crane control setup and control method.
Background technology
Hoisting crane refers to many actions elevator machinery of vertical-lift within the specific limits and horizontal carrying heavy goods, also known as crane, belongs to material carrying machine.Along with the quickening of social construction, hoisting crane development commercially and use more and more extensive.
Designer follows the tracks of the use of hoisting crane for many years, study rear discovery; crane hook upper-lower position controls to be the key factor using hoisting crane safely; control the upper-lower position of crane hook mainly through limiting and protecting device in prior art; but existing limiting and protecting device often there will be spacing inefficacy, can not the position of the upper and lower suspension hook of safe and effective control hoisting crane.
Summary of the invention
In view of this, the object of the embodiment of the present invention is to provide a kind of lifting height of crane control setup and control method, can not the position of the upper and lower suspension hook of safe and effective control hoisting crane to improve in prior art, the problem that the safety that hoisting crane uses has much room for improvement.
To achieve these goals, the technical scheme of embodiment of the present invention employing is as follows:
First aspect, embodiments provide a kind of lifting height of crane control setup, be applied to hoisting crane, described hoisting crane comprises cylinder, the actuating device that the suspension hook controlling described hoisting crane rises or declines, described lifting altitude control setup comprises control box, controls target and turbine worm reducer, and described turbine worm reducer side is connected with described cylinder, opposite side is connected with counting target;
Described counting target is all connected with described actuating device with described control box, for being controlled rising or the decline of described suspension hook by described actuating device according to the control command of described control box; Described control target is all connected with described actuating device with described control box, for being controlled rising or the decline of described suspension hook by described actuating device according to the control command of described control box.
In conjunction with first aspect, embodiments provide the first possible embodiment of first aspect, wherein, described lifting altitude control setup also comprises urgency and stops target, described urgency is stopped target and is all connected with the general supply of described control box with described hoisting crane, for closing the general supply of described hoisting crane according to the control command of described control box.
In conjunction with the first possible embodiment of first aspect, embodiments provide the embodiment that the second of first aspect is possible, wherein, described control box comprises programmable logic controller (PLC) and contactless switch, described counting target, control target stop target with urgency and are all connected with described programmable logic controller (PLC), and the rise and fall that described contactless switch is connected to described programmable logic controller (PLC) and described hoisting crane control between power supply.
In conjunction with the embodiment that the second of first aspect is possible, embodiments provide the third possible embodiment of first aspect, wherein, described hoisting crane also comprises driving voltage transformer, described control box also comprises the circuit breaker be connected with the driving voltage transformer of described hoisting crane, and the direct supply to be connected with described circuit breaker, described programmable logic controller (PLC) is connected with described direct supply.
In conjunction with the third possible embodiment of first aspect, embodiments provide the 4th kind of possible embodiment of first aspect, wherein, between described counting target and described programmable logic controller (PLC), be connected with noncontacting switch.
In conjunction with the 4th kind of possible embodiment of first aspect, embodiments provide the 5th kind of possible embodiment of first aspect, wherein, described turbine worm reducer is connected with described cylinder by coupler.
In conjunction with first aspect, or first aspect the first ~ the 5th kind of any one possible embodiment, embodiments provide the 6th kind of possible embodiment of first aspect, wherein, described control box is connected with warning target.
Second aspect, embodiments provide a kind of lifting height of crane control method, be applied to lifting height of crane control setup, described lifting altitude control setup comprises control box, controls target and turbine worm reducer, described turbine worm reducer side is connected with the cylinder of described hoisting crane, opposite side is connected with counting target, and described method comprises:
The revolution of described counting target to described turbine worm reducer counts;
Described control box obtains the count results of described counting target, judges whether described count results exceedes predetermined threshold value, if so, then will the control command rising or decline be stopped to be sent to described counting target;
Described control command is sent to the actuating device of described hoisting crane by described counting target, and the suspension hook being controlled described hoisting crane by described actuating device stops rising or declining;
Described control box obtains the count results of described counting target again, judges whether described counting target has stopped counting, if not, then sends described control command to described control target;
Described control command is sent to the actuating device of described hoisting crane by described control target, and the suspension hook being controlled described hoisting crane by described actuating device stops rising or declining.
In conjunction with second aspect, embodiments provide the first possible embodiment of second aspect, wherein, described lifting altitude control setup also comprises urgency and stops target, described urgency is stopped target and is all connected with the general supply of described control box with described hoisting crane, at described control target, described control command is sent to the actuating device of described hoisting crane, by described actuating device control described hoisting crane suspension hook stop rise or decline after, described method also comprises:
Described control box regains the count results of described counting target, judges whether described counting target has stopped counting, if not, then stops target to described urgency and sends power-off instruction;
Described urgency stops the general supply closedown that target controls described hoisting crane.
In conjunction with second aspect, embodiments provide the embodiment that the second of second aspect is possible, wherein, described control box is connected with warning target, is preset with alarm threshold value in described control box, and described method also comprises:
Obtain the count results of described counting target, judge whether described count results exceedes described alarm threshold value, if so, then control described warning target and carry out sound and light alarm.
In the embodiment of the present invention; having abandoned prior art adopts limiting and protecting device to control the mode of crane hook upper-lower position; devise lifting altitude control setup dexterously; by the counting target in device, control target to the rising of crane hook, decline and carry out two ore control; when arbitrary control program lost efficacy, control box can start the second control program immediately, this two ore control scheme; effectively ensure that the reliability of control, thus ensure that the safety that hoisting crane uses.
Further, in the embodiment of the present invention, while two ore control is carried out in the rising adopting counting target, control target to crane hook, decline, be also provided with and suddenly stop target as triple control, suddenly stop target and be directly connected with crane control general supply, when front double control was all lost efficacy, suddenly stopping target by operating, just immediately can cut off general supply, make crane hook stop immediately rising, declining, this design, further ensure that the safe reliability that hoisting crane uses.
Further; in the embodiment of the present invention; in control box, the main programmable logic controller (PLC) PLC that adopts controls, safe and reliable, fatigue resistance is high, and the sweep time of programmable logic controller (PLC) calculates with millisecond; speed of response block; effectively can save peripheral control path loaded down with trivial details in a large number, reduce maintenance rate, having broken fender guard in prior art is all the thinking limitation adopting Control pattern; design very ingenious, realistic demand.
Further, in the embodiment of the present invention, rise at hoisting crane, when decreaseing beyond predetermined threshold value, adopt counting target, the rising to hoisting crane such as control target, decline while carrying out controlling, be about to exceed predetermined threshold value, when reaching alarm threshold value, also can control warning target and carry out sound and light alarm, operating personal is reminded to note operation, this design, while realizing Based Intelligent Control, also effectively ensure that associative operation personnel can learn the control result of control setup in time, artificial management and control is carried out in time according to alarm message, further ensure that the safe reliability that hoisting crane uses.
Embodiment of the present invention structure is simple, it is ingenious to design, it is convenient to implement, have outstanding substantive distinguishing features and marked improvement, is applicable to large-scale promotion application.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from specification sheets, or understand by implementing the embodiment of the present invention.The object of the embodiment of the present invention and other advantages are by realizing at write specification sheets, claims and accompanying drawing and obtaining.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment below, be to be understood that, the following drawings illustrate only some embodiment of the present invention, therefore the restriction to scope should be counted as, for those of ordinary skill in the art, under the prerequisite not paying creative work, other relevant accompanying drawings can also be obtained according to these accompanying drawings.
The connection structure schematic diagram of a kind of lifting height of crane control setup that Fig. 1 provides for the embodiment of the present invention 1;
The connection block diagram of a kind of lifting height of crane control setup that Fig. 2 provides for the embodiment of the present invention 1;
The connection block diagram of the another kind of lifting height of crane control setup that Fig. 3 provides for the embodiment of the present invention 1;
The schematic flow sheet of a kind of lifting height of crane control method that Fig. 4 provides for the embodiment of the present invention 2;
The schematic flow sheet of the another kind of lifting height of crane control method that Fig. 5 provides for the embodiment of the present invention 2.
Detailed description of the invention
Below in conjunction with accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.The assembly of the embodiment of the present invention describing and illustrate in usual accompanying drawing herein can be arranged with various different configuration and design.Therefore, below to the detailed description of the embodiments of the invention provided in the accompanying drawings and the claimed scope of the present invention of not intended to be limiting, but selected embodiment of the present invention is only represented.Based on embodiments of the invention, the every other embodiment that those skilled in the art obtain under the prerequisite not making creative work, all belongs to the scope of protection of the invention.
Embodiment 1
Designer has carried out omnidirectional tracking, research to the use of hoisting crane for many years, finds after deliberation, and crane hook upper-lower position controls to be the key factor using hoisting crane safely.As so crucial position; main employing limiting and protecting device controls; the various limiting and protecting devices of current commercial type often there will be spacing inefficacy; can not the position of the upper and lower suspension hook of safe and effective control hoisting crane; hoisting crane roof fall or return volume accident and happen occasionally; even there occurs fixed wheel damage, wire cable rupture; lifted weight thing falls; smash below mechanical equipment; produce the serious accidents such as personal casualty; meanwhile, the situation that several hoisting cranes work in same operation interval is much shown in, the accident easily collided with each other.
Based on this, as shown in Figure 1 and Figure 2, embodiments provide a kind of lifting height of crane control setup 102 that can carry out two ore control to the upper-lower position of crane hook, be applied to hoisting crane, described hoisting crane comprises cylinder 100, the actuating device 204 that the suspension hook controlling described hoisting crane rises or declines, described lifting altitude control setup comprises control box 201, controls target 202 and turbine worm reducer 200, and described turbine worm reducer 200 side is connected with described cylinder 100, opposite side is connected with and counts target 203;
Wherein, preferably by coupler 101, turbine worm reducer 200 is connected with cylinder 100;
Described counting target 203 is all connected with described actuating device 204 with described control box 201, for being controlled rising or the decline of described suspension hook by described actuating device 204 according to the control command of described control box 201; Described control target 202 is all connected with described actuating device 204 with described control box 201, for being controlled rising or the decline of described suspension hook by described actuating device 204 according to the control command of described control box 201.
After so arranging, by the counting target 203 in device, control the rising of target 202 pairs of crane hooks, decline and carry out two ore control, when arbitrary control program lost efficacy, control box 201 can start the second control program immediately, such as: by the count results of counting target 203, control box 201 judges to draw that needing to control crane hook stops rising, decline, then send to counting target 203 and stop control command, stopping control command being sent to actuating device 204 by counting target 203, control crane hook stops, if the control of counting target 203 was lost efficacy, then count target 203 still counting, now, control box 201 sends to control target 202 and stops control command, control target 202 and stopping control command being sent to actuating device 204, control crane hook stops.
While adopting two ore control scheme to guarantee the reliability controlled, as shown in Figure 3, in the embodiment of the present invention, have also been devised triple control program: described lifting altitude control setup also comprises urgency and stops target 205, described urgency is stopped target 205 and is all connected with the general supply 206 of described hoisting crane with described control box 201, for closing the general supply 206 of described hoisting crane according to the control command of described control box 201.When front double control was all lost efficacy, suddenly stopping target 205 by operating, just can immediately cut off general supply 206, and by cutting off the general supply 206 of hoisting crane, making crane hook stop immediately rising, declining, guaranteeing the safe reliability that hoisting crane uses.
Wherein, control target 202 and count target 203 main under certain failure condition, such as: the action when contactless switch of control hoisting crane rise and fall breaks down; Suddenly stopping target 205 is mainly exceeding under certain failure condition, cuts off hoisting crane master control power supply.As: control target 202 and count the rise and fall contactless switch of target 203 for the rising of cutting-off controlling hoisting crane, decline; Suddenly stop target 205 for cutting off main contactor, wherein, main contactor is used for powering to rise and fall contactless switch.
Wherein, the design of control box 201 has multiple, provide wherein a kind of in the embodiment of the present invention, consider that programmable logic controller (PLC) PLC is safe and reliable, fatigue resistance is high, sweep time calculates with millisecond, speed of response block, effectively can save peripheral control path loaded down with trivial details in a large number, reduce maintenance rate, in the embodiment of the present invention, having abandoned fender guard in prior art is all the thinking limitation adopting Control pattern, preferred control box 201 comprises programmable logic controller (PLC) and contactless switch, described counting target 203, control target 202 stops target 205 with urgency and is all connected with described programmable logic controller (PLC), described contactless switch is connected between the general supply 206 of described programmable logic controller (PLC) and described hoisting crane.
In above-mentioned, the power supply of preferred programmable logic controller (PLC) PLC is provided by crane control driving voltage transformer, as AC380V becomes AC220V, electric current enters control box 201 through circuit breaker, enter direct supply, export DC24V electric current to power to programmable logic controller (PLC) and proximity switch, controlled the control power supply of hoisting crane by microcontactor.
Consider actual demand, preferred described hoisting crane also comprises driving voltage transformer, described control box 201 also comprises the circuit breaker be connected with the driving voltage transformer of described hoisting crane, and the direct supply be connected with described circuit breaker, and described programmable logic controller (PLC) is connected with described direct supply.Noncontacting switch is connected with between described counting target 203 and described programmable logic controller (PLC).
At employing counting target 203, control target 202 grade to the rising of hoisting crane, decline while carrying out Based Intelligent Control, in order to process in time when Based Intelligent Control breaks down, preferred control box 201 is connected with warning target, at employing counting target 203, control target 202 grade to the rising of hoisting crane, decline while carrying out controlling, be about to exceed predetermined threshold value, when reaching alarm threshold value, also can control warning target and carry out sound and light alarm, operating personal is reminded to note operation, this design, while realizing Based Intelligent Control, also effectively ensure that associative operation personnel can learn the control result of control setup in time, artificial management and control is carried out in time according to alarm message, further ensure that the safe reliability that hoisting crane uses.
In order to make the technical scheme of the embodiment of the present invention more clear and definite, embodiments provide wherein a kind of implementation:
Turbine worm reducer 200 in lifting height of crane control setup 102 is connected with drum of crane 100 side by coupler 101, when hoisting crane rise and fall, actuating device 204 drives cylinder 100 to rotate, cylinder 100 drives turbine worm reducer 200 to rotate, turbine worm reducer 200 drives counting target 203 to count, counting target 203 is added up and transfer cylinder 100 revolution, by proximity switch transmission of signal to programmable logic controller (PLC) PLC, obtain crane hoisting lowering position by programmable logic controller (PLC) PLC computing and to hoist decline the need of stopping, when computing draws crane hoisting, when decreaseing beyond threshold value, send to counting target 203 immediately and stop control command, stopping control command being passed to actuating device 204 by counting target 203, control crane hook to stop hoisting, decline, when the control counting target 203 was lost efficacy, crane hook continues to hoist, decline, counting target 203 can continue counting, now, stopping control command being passed to and controlling target 202 by programmable logic controller (PLC) PLC, control target 202, by travel switch etc., control command is passed to actuating device 204, control crane hook and stop hoisting, declining.If consider hoisting crane rise and fall Long-Time Service, contactless switch main contact probably can not be good combination, there is sticky dead phenomenon, cause hoisting crane rise and fall can not power-off, in the embodiment of the present invention, be provided with the urgency controlling hoisting crane general supply 206 and stop target 205, when counting target 203, control target 202 all lost efficacy, only need operate and suddenly stop target 205, just can break car load power supply 206, in order to avoid grave accident occurs.
In above-mentioned, the selection suddenly stopping target 205, counting target 203 and control target 202 has multiple, such as: travel switch, regular tap etc.
Mutually colliding in order to avoid between crane, preferably on crane trolley beam, diffuser reflection switch is installed, report to the police when two overhead traveling cranes are at a distance of 3 meters, control hoisting crane and stop, prevent mutual collision, avoiding because colliding the generation that causes the accident.It should be noted that, in above-mentioned, warning target is the unit module with warning function, and accessible site, in counting target 203, completes warning by counting target 203.
In the embodiment of the present invention; abandon in prior art the mode adopting limiting and protecting device to control crane hook upper-lower position; devise lifting altitude control setup dexterously; two ore control is carried out by the counting target 203 in device, the rising controlling target 202 pairs of crane hooks, decline; when arbitrary control program lost efficacy; control box 201 can start the second control program immediately; this two ore control scheme; effectively ensure that the reliability of control, thus ensure that the safety that hoisting crane uses.
Embodiment 2
Embodiments provide a kind of lifting height of crane control method, be applied to the lifting height of crane control setup in embodiment 1, described lifting altitude control setup comprises control box, controls target and turbine worm reducer, and described turbine worm reducer side is connected with described cylinder, opposite side is connected with counting target; As shown in Figure 4, described method comprises:
Step S300: the revolution of described counting target to described turbine worm reducer counts; Step S301: described control box obtains the count results of described counting target, judges whether described count results exceedes predetermined threshold value, step S302: if then will the control command rising or decline be stopped to be sent to described counting target; Step S303: described control command is sent to the actuating device of described hoisting crane by described counting target, the suspension hook being controlled described hoisting crane by described actuating device stops rising or declining; Step S304: described control box obtains the count results of described counting target again, judges whether described counting target has stopped counting, and step S305: if not, then send described control command to described control target; Step S306: described control command is sent to the actuating device of described hoisting crane by described control target, the suspension hook being controlled described hoisting crane by described actuating device stops rising or declining.
Wherein, preferred lifting height of crane control setup complete machine is selected and is independently controlled power supply, adopts programmable logic controller (PLC) PLC and proximity switch to combine and automatically controls.
Described lifting altitude control setup also comprises urgency and stops target, described urgency is stopped target and is all connected with the general supply of described control box with described hoisting crane, at described control target, described control command is sent to the actuating device of described hoisting crane, by described actuating device control described hoisting crane suspension hook stop rise or decline after, as shown in Figure 5, described method also comprises:
Step S400: described control box regains the count results of described counting target, judges whether described counting target has stopped counting, step S401: if not, then stop target to described urgency and send power-off instruction; Step S402: described urgency stops the general supply closedown that target controls described hoisting crane.
In above-mentioned, counting target has tally function, can be used for controlling hoisting crane rise and fall according to the control command of control box and runs.Designer finds after deliberation, and old-fashioned fender guard is generally main body by mechanical gear transmission, internal mechanism often occurs and damages; device cannot normally use, and based on this, contriver finds through multi-party verification; turbine worm reducer is adopted can effectively to improve this problem; thus, in the embodiment of the present invention, select turbine worm reducer control principle; to realize accurate location; antifatigue uses, and convenience easy to repair is practical.Implementation has multiple, such as: by controlling the contactless switch automatic control loop that hoisting crane rises, declines, thus cutting off suspension hook contactless switch, accurately being risen by suspension hook, declining controls in setting range.
When counting target and losing efficacy, start immediately and control target, carry out second and heavily control.
Described control box is connected with warning target, is preset with alarm threshold value in described control box, and described method also comprises:
Obtain the count results of described counting target, judge whether described count results exceedes described alarm threshold value, if so, then control described warning target and carry out sound and light alarm.
Warning target has the function of alarm.When hoisting crane is about to surpass the expectation setting rising and lowering position, when reaching alarm threshold value, warning target alarm operating personal position of crane hook is about to exceed normal position.
Suddenly stopping target has pressure parking function.After hoisting crane warning target is reported to the police, due to machinery or apparatus failure hoisting crane also operationally, suddenly stop the generation that grave accident stopped by hard closing hoisting crane main power source by target.
In order to ensure the safe reliability that hoisting crane uses, when implementing, preferably establish distance-sensor, when two hoisting cranes of same workshop use are within three meters at the same time, warning target sends alerting signal, distance-sensor can also be stopped target with urgency and be associated, and cuts off crane power supply and forces to stop.This function can effectively prevent two hoisting cranes from mutual collision case occurring, and reduces business economic property damage.
In sum, the lifting height of crane control method in the embodiment of the present invention mainly has following performance:
Rising normal position parking function.When hoisting crane reaches raise-position, counting target is accurately located, and cuts off rising control loop, and effective roof caving control accident occurs.
The super normal position warning function that rises.The position when hoisting crane rises, still continue to rise because machinery or electrical equipment reason cause hoisting crane to arrive behind normal position, target of reporting to the police after exceeding raise-position controls combined aural and visual alarm to start to report to the police, the super setting range of timely alert.
Drop to normal position parking function.Hoisting crane counts target when reaching decline position and accurately locates, and cuts off control loop for descending, effectively controls to return volume accident and occurs.
The super normal position warning function that declines.When hoisting crane declines, still continue to decline because machinery or electrical equipment reason cause hoisting crane to arrive behind normal position, exceed decline position warning target and control combined aural and visual alarm and start to report to the police, timely alert exceedes setting range.
Force disconnect main power source function after super normal position warning of rising.Still work on because the machinery of hoisting crane, electrical equipment et out of order and human operational error cause hoisting crane to be increased beyond normal position, prompting cuts off main power source after reporting to the police, and serves the generation that double protection stops accident.
Force disconnect main power source function after the super normal position warning that declines.Still work on because the machinery of hoisting crane, electrical equipment et out of order and human operational error cause hoisting crane to decrease beyond normal position, prompting is anxious after reporting to the police to stop target and will cut off main power source, serves the generation that double protection stops accident.
Crane runs warning function.When a workshop uses two or several hoisting cranes simultaneously, any two hoisting cranes are within 3 meters, and cart is reported to the police, and alert notes position, prevents several overhead traveling cranes in same workshop from mutually colliding.Such as: diffuser reflection switch is installed on crane trolley beam, reporting to the police when two overhead traveling cranes are at a distance of 3 meters, control hoisting crane and stop, prevent mutual collision, avoiding because colliding the generation that causes the accident.
On the basis of the above, a kind of adjustment method is additionally provided in the embodiment of the present invention:
Lifting position-limit adjustment method: first device is arranged on drum of crane side, hoisting crane main hook is placed the optimum position of bottom, device is transferred to decline position, press debugging button, PLC enters the debug phase, commissioning staff is at debugging mode in flash lights prompting, and PLC stores decline position location information; Then start hoisting crane and rise to raise-position, hoisting crane stops, then presses debugging button debugging end.
Again debug as thought to press continuously and repeatedly automatically terminate tune-up data last time.Restart by above explanation.
After having debugged when exceeding rise and fall position, automatic alarm, alert hoisting crane has had machinery or electrical equipment to there is fault, should overhaul immediately.If hoisting crane continues to run, pressure is stopped, cut off hoisting crane main contactor.Effective roof caving control and warp grave accident occur.
The invention that the embodiment of the present invention provides, its technique effect realizing principle and generation is identical with aforementioned means embodiment, is concise and to the point description, and the not mentioned part of embodiment of the method part can with reference to corresponding contents in aforementioned means embodiment.
In the embodiment of the present invention; abandon in prior art the mode adopting limiting and protecting device to control crane hook upper-lower position; devise lifting altitude control setup dexterously; by the counting target in device, control target to the rising of crane hook, decline and carry out two ore control; when arbitrary control program lost efficacy, control box can start the second control program immediately, this two ore control scheme; effectively ensure that the reliability of control, thus ensure that the safety that hoisting crane uses.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection domain of claim.
Claims (10)
1. a lifting height of crane control setup, it is characterized in that, be applied to hoisting crane, described hoisting crane comprises cylinder, the actuating device that the suspension hook controlling described hoisting crane rises or declines, described lifting altitude control setup comprises control box, controls target and turbine worm reducer, and described turbine worm reducer side is connected with described cylinder, opposite side is connected with counting target;
Described counting target is all connected with described actuating device with described control box, for being controlled rising or the decline of described suspension hook by described actuating device according to the control command of described control box; Described control target is all connected with described actuating device with described control box, for being controlled rising or the decline of described suspension hook by described actuating device according to the control command of described control box.
2. lifting height of crane control setup according to claim 1, it is characterized in that, described lifting altitude control setup also comprises urgency and stops target, described urgency is stopped target and is all connected with the general supply of described control box with described hoisting crane, for closing the general supply of described hoisting crane according to the control command of described control box.
3. lifting height of crane control setup according to claim 2, it is characterized in that, described control box comprises programmable logic controller (PLC) and contactless switch, described counting target, control target stop target with urgency and are all connected with described programmable logic controller (PLC), and the rise and fall that described contactless switch is connected to described programmable logic controller (PLC) and described hoisting crane control between power supply.
4. lifting height of crane control setup according to claim 3, it is characterized in that, described hoisting crane also comprises driving voltage transformer, described control box also comprises the circuit breaker be connected with the driving voltage transformer of described hoisting crane, and the direct supply to be connected with described circuit breaker, described programmable logic controller (PLC) is connected with described direct supply.
5. lifting height of crane control setup according to claim 4, is characterized in that, is connected with noncontacting switch between described counting target and described programmable logic controller (PLC).
6. lifting height of crane control setup according to claim 5, is characterized in that, described turbine worm reducer is connected with described cylinder by coupler.
7. the lifting height of crane control setup according to claim 1 ~ 6 any one, is characterized in that, described control box is connected with warning target.
8. a lifting height of crane control method, it is characterized in that, be applied to lifting height of crane control setup, described lifting altitude control setup comprises control box, controls target and turbine worm reducer, described turbine worm reducer side is connected with the cylinder of described hoisting crane, opposite side is connected with counting target, and described method comprises:
The revolution of described counting target to described turbine worm reducer counts;
Described control box obtains the count results of described counting target, judges whether described count results exceedes predetermined threshold value, if so, then will the control command rising or decline be stopped to be sent to described counting target;
Described control command is sent to the actuating device of described hoisting crane by described counting target, and the suspension hook being controlled described hoisting crane by described actuating device stops rising or declining;
Described control box obtains the count results of described counting target again, judges whether described counting target has stopped counting, if not, then sends described control command to described control target;
Described control command is sent to the actuating device of described hoisting crane by described control target, and the suspension hook being controlled described hoisting crane by described actuating device stops rising or declining.
9. lifting height of crane control method according to claim 8, it is characterized in that, described lifting altitude control setup also comprises urgency and stops target, described urgency is stopped target and is all connected with the general supply of described control box with described hoisting crane, at described control target, described control command is sent to the actuating device of described hoisting crane, by described actuating device control described hoisting crane suspension hook stop rise or decline after, described method also comprises:
Described control box regains the count results of described counting target, judges whether described counting target has stopped counting, if not, then stops target to described urgency and sends power-off instruction;
Described urgency stops the general supply closedown that target controls described hoisting crane.
10. lifting height of crane control method according to claim 8, is characterized in that, described control box is connected with warning target, is preset with alarm threshold value in described control box, and described method also comprises:
Obtain the count results of described counting target, judge whether described count results exceedes described alarm threshold value, if so, then control described warning target and carry out sound and light alarm.
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