CN104692267B - A kind of crane arm support anti-hypsokinesis safety control - Google Patents
A kind of crane arm support anti-hypsokinesis safety control Download PDFInfo
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- CN104692267B CN104692267B CN201510030193.XA CN201510030193A CN104692267B CN 104692267 B CN104692267 B CN 104692267B CN 201510030193 A CN201510030193 A CN 201510030193A CN 104692267 B CN104692267 B CN 104692267B
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- hypsokinesis
- alarm
- signal
- controller
- extreme position
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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
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/88—Safety gear
Abstract
The invention discloses a kind of crane arm support anti-hypsokinesis safety control, including display, controller, angular transducer and low pressure alarming pressure switch and alarm for high voltage pressure switch；Described controller is used for calculating anti-hypsokinesis length, and compares with anti-hypsokinesis extreme position setting value, sends extreme position restraint signal to stop oil cylinder retract action；Described display, for receiving the anti-hypsokinesis length signals that controller is sent, shows the most in real time, and sets an anti-hypsokinesis limit pre-alarm scope in the display, when anti-hypsokinesis length reaches this scope, ejects warning window, is used for pointing out operator.The present invention avoids the data caused due to signal disturbing to show inaccurate problem；Improve versatility and the operation convenience of the detection of anti-hypsokinesis extreme position；Increase anti-hypsokinesis extreme position pre-alarm function；Improve precision and the reliability of whole anti-hypsokinesis safety control system；Reduce the cost of anti-hypsokinesis safety control system.
Description
Technical field
The present invention relates to a kind of safety control, be specifically related to a kind of crane arm support anti-hypsokinesis safety control.
Background technology
During crane hanging component, it is frequently necessary to luffing range of cantilever support, by cocked for jib to certain angle, when misoperation or other factors make angle bigger than normal, first class of protection device amplitude limit switch works, limit luffing and play action, when amplitude limit switch lost efficacy or ran into the unexpected hypsokinesis of special circumstances, secondary protection device anti-squat system works, make crane arm, variable-amplitude steel wire rope and auxiliary equipment thereof are in steady statue, play and prevent crane arm continuation layback from causing whole crane deviation of gravity center steady statue, unstability, the effect tumbled, protection life and property safety.The most how anti-squat system is carried out security control so that it is anti-tipping effect can be played safely and reliably, it appears particularly important.
Seeing Fig. 1, jib 6 is hinged with turntable 7, and the first hinge is 8, and turntable 7 is hinged with anti-hypsokinesis 5, and the second hinge is 9, and anti-hypsokinesis 5 is hinged with jib 6, and tri-joint mechanism is 10.Existing anti-hypsokinesis safety control includes the display 1 that controller 2 is connected, proximity switch 3-1 (each one of the anti-hypsokinesis of left/right detecting anti-hypsokinesis 5 extreme position with controller 2 outfan, altogether two pieces), detect the pressure transducer 4-1 (each one of the anti-hypsokinesis of left/right, altogether two pieces) of anti-hypsokinesis 5 pressure in real time.By in this proximity switch 3-1 and pressure transducer 4-1 signal access controller 2, anti-hypsokinesis 5 is carried out security control, when anti-hypsokinesis 5 reaches capacity position, forbid the retract action of anti-hypsokinesis 5, the anti-hypsokinesis force value recorded by pressure transducer 4-1, compare with the high low pressure ultimate value set, display 1 is given anti-hypsokinesis high low pressure alarm indicator or performs anti-hypsokinesis restraint.
Existing anti-hypsokinesis safety control has the disadvantage that 1, pressure transducer is analog quantity, and its signal is easily subject to the interference of other factors, causes pressure value inaccurate or saltus step, poor stability；2, proximity switch limits because of himself range, and detecting distance is limited, and to different anti-hypsokinesis oil cylinders, the proximity switch of selection may be not quite similar, and adds the kind of proximity switch, improves the mistake assembly rate at scene；3, mounting bracket of approach switch size is difficult to determine, is difficult to regulation when assembled in situ is improper, and the highest to the generalization degree of different preventing hypsokinesis oil cylinder, reduces mass productivity；4, when proximity switch detects that anti-hypsokinesis reaches the limit of position, send alarm signal to operator, remind its can not cantilever lifting again, in order to avoid by bad for anti-hypsokinesis oil cylinder top, it lacks a kind of early warning mechanism when being up to extreme position shortly, to remind operator slowly to operate；5, existing anti-hypsokinesis safety control needs to use two proximity switches and two pressure transducers, and cost is high.
Summary of the invention
The deficiency existed for prior art, it is an object of the present invention to provide the crane arm support anti-hypsokinesis safety control that a kind of control accuracy reliability is higher, versatility is higher, convenience operates, cost is lower, and has anti-hypsokinesis extreme position pre-alarm function.
To achieve these goals, the present invention is to realize by the following technical solutions:
A kind of crane arm support anti-hypsokinesis safety control of the present invention, including display, controller, also include being installed on jib root and jib linkage for the angular transducer of detection jib angle in real time and the low pressure alarming pressure switch being arranged in anti-hypsokinesis and alarm for high voltage pressure switch, the outfan of described angular transducer, low pressure alarming pressure switch and alarm for high voltage pressure switch connects the input of controller, and described controller is connected by CAN with display；
The angle signal of the jib that described controller detects for receiving angle sensor, utilize known location relation, it is calculated described anti-hypsokinesis length, and compare with anti-hypsokinesis extreme position setting value, when calculated anti-hypsokinesis length≤extreme position setting value, send extreme position restraint signal to stop oil cylinder retract action, and send anti-hypsokinesis length signals and extreme position alarm signal to described display；
Described controller is additionally operable to receive low pressure alarming signal and the alarm for high voltage signal that low pressure alarming pressure switch and alarm for high voltage pressure switch are sent, control the high low pressure switching of hydraulic pump according to this, and this low pressure alarming signal and alarm for high voltage signal are sent to described display；
Described display is for receiving the anti-hypsokinesis length signals that controller is sent, show the most in real time, and in described display, set an anti-hypsokinesis limit pre-alarm scope, when anti-hypsokinesis length reaches this scope, eject warning window, " anti-hypsokinesis will reach the limit of position to prompting operator, the most slowly operates！", it is used for avoiding operation amplitude too senior general anti-hypsokinesis oil cylinder top bad；
Described display also receives the extreme position alarm signal and low pressure alarming signal and alarm for high voltage signal that controller sends, and when there being warning to occur, provides alarm in the display, instructs the operation of operator.
Utilizing known location relation, above-mentioned anti-hypsokinesis length calculation method is as follows:
Utilize the first hinge of jib and turntable to the first hinge of the distance between anti-hypsokinesis and the second hinge of turntable and jib and turntable to the distance between anti-hypsokinesis and the tri-joint mechanism of jib, according to the space geometry relation between them, go out anti-hypsokinesis length by program calculation.
Beneficial effects of the present invention is as follows:
Present invention pressure switch realizes anti-hypsokinesis oil cylinder high low pressure warning function, owing to using switching signal, than the analogue signal of oil pressure sensor, is not easily susceptible to the interference of other factors, and accuracy, reliability are higher；The present invention can obtain the instantaneous value of anti-hypsokinesis length by computational methods, the when of can being up to anti-hypsokinesis extreme position shortly, display ejecting an alert box, the prompting anti-hypsokinesis of operator will reach the limit of position, the most slowly operate, it is to avoid operation amplitude too senior general anti-hypsokinesis oil cylinder top is bad；The present invention, to different anti-hypsokinesis, as long as utilizing angular transducer and known position relationship, just can realize the warning of anti-hypsokinesis extreme position in the controller, and generalization degree is the highest, and eliminates the workload of assembling proximity switch；The present invention anti-hypsokinesis extreme position alarming value can set in the controller and change, and than the adjustment mode of proximity switch, this mode is easier to be adjusted extreme position according to on-site actual situations；The present invention passes through angular transducer and known position relationship, in the controller by being calculated anti-hypsokinesis length, and compare with setting value, the position that reaches capacity provides warning, the method utilizing two proximity switch detectable limit positions is instead of by the method, save two proximity switches and mounting bracket, reduce the cost of anti-hypsokinesis safety control system；The present invention replaces expensive pressure transducer by cheap pressure switch, reduce further the cost of anti-hypsokinesis safety control system.
Accompanying drawing explanation
Fig. 1 is existing crane arm support anti-hypsokinesis safety control structural representation；
Fig. 2 is the crane arm support anti-hypsokinesis safety control structural representation of the present invention；
Each label in figure: display 1, controller 2, proximity switch 3-1, angular transducer 3-2, pressure transducer 4-1, low pressure alarming pressure switch 4-2a, alarm for high voltage pressure switch 4-2b, anti-hypsokinesis 5, jib 6, turntable the 7, first hinge 8, the second hinge 9, tri-joint mechanism 10.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and be easy to understand with effect, below in conjunction with detailed description of the invention, the present invention is expanded on further.
See Fig. 2, a kind of crane arm support anti-hypsokinesis safety control of the present invention, including the angular transducer 3-2 of display 1, controller 2 and jib 6 linkage, it is used for measuring the angle of jib 6；Jib 6 and the first hinge 8 of turntable 7；Anti-hypsokinesis 5 and the second hinge 9 of turntable 7；Anti-hypsokinesis 5 and the tri-joint mechanism 10 of jib 6；It is arranged on low pressure alarming pressure switch 4-2a in anti-hypsokinesis 5 and alarm for high voltage pressure switch 4-2b.
Angular transducer 3-2, detects the angle of jib 6 in real time, and the current signal of angle is sent to controller 2.
Controller 2, the angle signal of the jib 6 that receiving angle sensor 3-2 detects, in conjunction with the hinge of jib 6 and turntable 7 to the hinge of the distance between anti-hypsokinesis 5 and the hinge of turntable 7 and jib 6 and turntable 7 to the distance between anti-hypsokinesis 5 and the hinge of jib 6, according to the space geometry relation between them, anti-hypsokinesis length is calculated by software programming, and compare with anti-hypsokinesis limiting length setting value, when calculated anti-hypsokinesis length≤limiting length setting value, controller sends anti-hypsokinesis extreme position restraint signal, act on anti-hypsokinesis oil cylinder and " contract " electromagnetic valve to stop oil cylinder retract action, and send anti-hypsokinesis length signals and extreme position alarm signal to display 1.
Low pressure alarming pressure switch 4-2a, when anti-hypsokinesis oil cylinder working-pressure is reduced to the low pressure alarming scope that this pressure switch sets, this pressure switch closes, and output low pressure warning switch signal is to controller 2.
Alarm for high voltage pressure switch 4-2b, when anti-hypsokinesis oil cylinder working-pressure increases to the alarm for high voltage scope that this pressure switch sets, this pressure switch closes, and output alarm for high voltage switching signal is to controller 2.
Controller 2 receives low pressure alarming pressure switch 4-2a and alarm for high voltage pressure switch 4-2b is sent low pressure and alarm for high voltage signal, control the high low pressure switching of hydraulic pump according to this, and this low pressure and alarm for high voltage signal be sent to display 1.
Display 1 connects controller 2 by bus, receive the anti-hypsokinesis length signals that controller 2 is sent, anti-hypsokinesis length is shown in real time in display 1, and in display 1, set an anti-hypsokinesis limiting length pre-alarm scope, when anti-hypsokinesis length reaches this scope, ejecting warning window, " anti-hypsokinesis 5 will reach the limit of position to prompting operator, the most slowly operates！", it is to avoid operation amplitude too senior general anti-hypsokinesis oil cylinder top is bad.
Display 1 also receives the extreme position alarm signal and low pressure and alarm for high voltage signal that controller 2 sends, and alert icon corresponding in the main interface of display 1 is lighted, and instructs the operation of operator.
The present invention is except being applied to Rearward tilting prevention device for main arm, it is also possible to apply in setting-up anti-hypsokinesis system and tower arm anti-squat system.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described.Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; the principle that the present invention is simply described described in above-described embodiment and description; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements both fall within scope of the claimed invention.Claimed scope is defined by appending claims and equivalent thereof.
Claims (2)
1. a crane arm support anti-hypsokinesis safety control, including display (1), controller (2), it is characterized in that, also include being installed on jib (6) root and jib (6) linkage and be used for detecting in real time the angular transducer (3-2) of jib (6) angle and the low pressure alarming pressure switch (4-2a) being arranged in anti-hypsokinesis (5) and alarm for high voltage pressure switch (4-2b), described angular transducer (3-2), the outfan of low pressure alarming pressure switch (4-2a) and alarm for high voltage pressure switch (4-2b) connects the input of controller (2), described controller (2) is connected by CAN with display (1)；
The angle signal of the jib (6) that described controller (2) detects for receiving angle sensor (3-2), utilize known location relation, it is calculated anti-hypsokinesis length, and compare with anti-hypsokinesis extreme position setting value, when calculated anti-hypsokinesis length≤anti-hypsokinesis extreme position setting value, send extreme position restraint signal to stop anti-hypsokinesis oil cylinder retract action, and send anti-hypsokinesis length signals and extreme position alarm signal to described display (1)；
Described controller (2) is additionally operable to receive low pressure alarming pressure switch (4-2a) and the low pressure alarming signal sent of alarm for high voltage pressure switch (4-2b) and alarm for high voltage signal, signal controls the high low pressure switching of hydraulic pump according to this, and this low pressure alarming signal and alarm for high voltage signal are sent to described display (1)；
Described display (1) is used for receiving the anti-hypsokinesis length signals that controller (2) is sent, display (1) shows in real time, and in described display (1), set an anti-hypsokinesis limit pre-alarm scope, when anti-hypsokinesis length reaches this scope, eject warning window, " anti-hypsokinesis (5) will reach the limit of position to prompting operator, the most slowly operates！", it is used for avoiding operation amplitude too senior general anti-hypsokinesis oil cylinder top bad；
Described display (1) also receives the extreme position alarm signal and low pressure alarming signal and alarm for high voltage signal that controller (2) sends, when there being warning to occur, in display (1), provide alarm, instruct the operation of operator.
Crane arm support the most according to claim 1 anti-hypsokinesis safety control, it is characterised in that utilizing known location relation, described anti-hypsokinesis length calculation method is as follows:
The first hinge (8) utilizing jib (6) and turntable (7) arrives first hinge (8) of the distance between anti-hypsokinesis (5) and second hinge (9) of turntable (7) and jib (6) and turntable (7) to the distance between anti-hypsokinesis (5) and the tri-joint mechanism (10) of jib (6), according to the space geometry relation between them, calculate anti-hypsokinesis length.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510030193.XA CN104692267B (en) | 2015-01-22 | 2015-01-22 | A kind of crane arm support anti-hypsokinesis safety control |
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| CN201510030193.XA CN104692267B (en) | 2015-01-22 | 2015-01-22 | A kind of crane arm support anti-hypsokinesis safety control |
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| CN104692267A CN104692267A (en) | 2015-06-10 |
| CN104692267B true CN104692267B (en) | 2016-09-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3569562A1 (en) * | 2018-05-09 | 2019-11-20 | Sumitomo Heavy Industries Construction Cranes Co., Ltd. | Crane |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174089B (en) * | 2015-10-10 | 2017-08-08 | 徐工集团工程机械股份有限公司 | Auxiliary arm system and boom system |
| CN112408287B (en) * | 2020-11-27 | 2022-05-06 | 江苏徐工工程机械研究院有限公司 | System for monitoring position of telescopic arm of aerial work platform and control method |
| CN112723203B (en) * | 2020-12-28 | 2022-08-05 | 中联重科股份有限公司 | Control method and device for anti-back-tilting oil cylinder of arm support and engineering machinery |
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| JPH11106185A (en) * | 1997-10-09 | 1999-04-20 | Sumitomo Constr Mach Co Ltd | Abnormal at-rest posture alarm device for tower crane |
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| US3913690A (en) * | 1973-05-16 | 1975-10-21 | Pye Ltd | Crane load indicating arrangement |
| FR2456702A1 (en) * | 1979-05-18 | 1980-12-12 | Coles Cranes Ltd | CRANE COMPRISING A DATA PROCESSING DEVICE FOR CALCULATING WORKING CONDITIONS |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP3569562A1 (en) * | 2018-05-09 | 2019-11-20 | Sumitomo Heavy Industries Construction Cranes Co., Ltd. | Crane |
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| CN104692267A (en) | 2015-06-10 |
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