CN107500156B - Judgment means and judgment method around the revolution overlapping region of stake formula isolated pillar crane - Google Patents
Judgment means and judgment method around the revolution overlapping region of stake formula isolated pillar crane Download PDFInfo
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- CN107500156B CN107500156B CN201710731103.9A CN201710731103A CN107500156B CN 107500156 B CN107500156 B CN 107500156B CN 201710731103 A CN201710731103 A CN 201710731103A CN 107500156 B CN107500156 B CN 107500156B
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- signal
- revolving platform
- revolution
- reference line
- overlapping region
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Classifications
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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
- B66C23/94—Safety gear for limiting slewing movements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
- B66C15/06—Arrangements or use of warning devices
Abstract
The invention discloses the judgment means and judgment method of a kind of revolution overlapping region around stake formula isolated pillar crane, belong to crane field.The judgment means include: detection module and logic module, and detection module is used to detect the different working condition of revolving platform and issues signal, and logic module is used to judge according to the signal that detection module detects the working condition of revolving platform.The working condition that the present invention passes through detection revolving platform, to accurately know the working condition of revolving platform, the case where revolving platform is more than its revolution range in turning course is avoided the occurrence of, and then cable-pulling chain is prevented to be damaged, guarantee can be worked normally around stake formula isolated pillar crane.
Description
Technical field
The present invention relates to hoisting machinery field, in particular to a kind of revolution overlapping region around stake formula isolated pillar crane is sentenced
Disconnected device and judgment method.
Background technique
On the spud leg that stake formula isolated pillar crane is typically mounted on ocean platform, because it has, occupancy platform space is small, ties
Structure is compact, crane capacity is big, lifts by crane the advantages that radius is remote and is widely used.Around stake formula isolated pillar crane mainly include pilum,
Revolving platform and derricking gear, revolving platform are spindle rotationally arranged on pilum, and derricking gear is then arranged on revolving platform, base
All there are enough spaces, and spud leg to be enable to extend there through for the middle part of column and the middle part of revolving platform.
General full-rotary crane is usually that slip ring box is arranged at the middle part of crane to guarantee the complete of its 360 ° of progress
Revolution, and for around stake formula isolated pillar crane, due to thering is spud leg to pass through in the middle part of stake formula isolated pillar crane, can not be arranged
Slip ring box guarantees that crane carries out 360 ° of full circle swinging, therefore is often designed to non-full circle swinging class around stake formula isolated pillar crane
Type, use cable-pulling chain come for around the revolving platform of stake formula isolated pillar crane provide power supply or carry out signal transmission.In order to make
It can work in the range of 360 ° around stake formula isolated pillar crane, one section of positive and negative revolution would generally be set around stake formula isolated pillar crane
Overlapping region, such as when the turning circle of crane be ± 200 ° when, the crane from initial position, can with positive direction return
Turn 200 °, 200 ° can also be turned round with opposite direction, there will be 40 ° of revolution overlapping regions.
In the implementation of the present invention, the inventor finds that the existing technology has at least the following problems:
Since one end of cable-pulling chain is connect with revolving platform, the other end is fixed, and is being turned round when around stake formula isolated pillar crane
In the process be more than its working range when, may result in cable-pulling chain and be damaged, so as to cause around stake formula isolated pillar crane without
Method works normally.
Summary of the invention
In order to solve to be more than in the prior art its working range in turning course around stake formula isolated pillar crane, lead to cable
Drag chain is damaged, the problem of so as to cause can not work normally around stake formula crane, the embodiment of the invention provides one kind around
The judgment means and judgment method of the revolution overlapping region of stake formula isolated pillar crane.The technical solution is as follows:
On the one hand, described the present invention provides a kind of judgment means of revolution overlapping region around stake formula isolated pillar crane
Judgment means include:
Detection module, for reaching the when the revolving platform around stake formula isolated pillar crane be rotated in a first direction to reference line
When one critical localisation, the first signal is generated；
When the revolving platform, which is rotated in a second direction, reaches the second critical localisation to the reference line, the second letter is generated
Number；
When the revolving platform, which turns to the reference line along the first direction, initially enters revolution overlapping region, hold
It is continuous to generate third signal, and until the reference line leaves the revolution overlapping region；
The revolution overlapping region is initially entered when the revolving platform turns to the reference line along the second direction
When, it is continuously generated fourth signal, and until the reference line leaves the revolution overlapping region；
Logic module judges described return for detecting first signal, second signal, third signal and fourth signal
The working condition for turning platform has judged the revolving platform when being detected simultaneously by first signal and the third signal
Maximum angle position is turned to along the first direction, when being detected simultaneously by the second signal and the fourth signal, is sentenced
The revolving platform that breaks turns to maximum angle position along the second direction；
Wherein, the revolution range of the revolving platform is ± θ, and 180 ° of 360 ° of < θ <, first critical localisation is described
When revolving platform is rotated in a first direction θ from zero degree position, the position that the reference line is reached, second critical localisation is
When the revolving platform is rotated in a second direction, θ from the zero degree position, the position that the reference line is reached, the zero degree position
It is set to the revolving platform not carry out turning round position when operating where the reference line, the reference line is for any one along institute
State the radial ray of revolving platform, the revolution overlapping region be first critical localisation and second critical localisation it
Between region.
Further, the logic module is also used to, when the logic module is detected simultaneously by the second signal and institute
When stating third signal, or being detected simultaneously by first signal and the fourth signal, judge that the revolving platform initially moves off
The revolution overlapping region and in the revolution range of the revolving platform.
Further, the judgment means further include alarm module, and the alarm module is used for,
When the logic module is detected simultaneously by first signal and the third signal, or it is detected simultaneously by described
When binary signal and the fourth signal, sound an alarm.
Further, the judgment means further include control module, and the control module is used for,
When the logic module is detected simultaneously by first signal and the third signal, the revolving platform is controlled
It is rotated along the second direction；
When the logic module is detected simultaneously by the second signal and the fourth signal, the revolving platform is controlled
It is rotated along the first direction.
Further, the detection module includes the collision block being arranged on the pilum of the crane and is arranged at described time
Turn the limit switch on platform, the collision block includes the first collision block, the second collision block and third collision block, and the limit switch includes edge
The reference line is arranged at the first limit switch, the second limit switch and third limit switch on the revolving platform；
First collision block is located at first critical localisation, and second collision block is located at second critical localisation, institute
Third collision block is stated between first critical localisation and second critical localisation, and the edge of the third collision block and institute
State the first critical localisation and second critical localisation alignment；
The distance of shaft of first limit switch to the revolving platform and first collision block are flat to the revolution
The shaft of platform is equidistant, and distance and second collision block of shaft of second limit switch to the revolving platform arrive
The shaft of the revolving platform is equidistant, the distance of shaft of the third limit switch to the revolving platform with it is described
The shaft of third collision block to the revolving platform is equidistant.
Further, the limit switch includes Switch main body and pivoted arm, and it is flat that the Switch main body is fixed on the revolution
On platform, the pivoted arm is rotatably arranged on the Switch main body, and the pivot center of the pivoted arm and the reference line weight
It closes, the pivoted arm under the interference of the collision block for rotating.
On the other hand, the present invention provides a kind of judgment method of revolution overlapping region around stake formula isolated pillar crane, institutes
Stating judgment method includes:
When the revolving platform around stake formula isolated pillar crane, which is rotated in a first direction, reaches the first critical localisation to reference line,
Generate the first signal；
When the revolving platform, which is rotated in a second direction, reaches the second critical localisation to the reference line, the second letter is generated
Number；
When the revolving platform, which turns to the reference line along the first direction, initially enters revolution overlapping region, hold
It is continuous to generate third signal, and until the reference line leaves the revolution overlapping region；
The revolution overlapping region is initially entered when the revolving platform turns to the reference line along the second direction
When, it is continuously generated fourth signal, and until the reference line leaves the revolution overlapping region；
When being detected simultaneously by first signal and the third signal, judge the revolving platform along described first
Direction turns to maximum angle position, when being detected simultaneously by the second signal and the fourth signal, judges the revolution
Platform turns to maximum angle position along the second direction；
Wherein, the revolution range of the revolving platform is ± θ, and 180 ° of 360 ° of < θ <, first critical localisation is described
When revolving platform is rotated in a first direction θ from zero degree position, the position that the reference line is reached, second critical localisation is
When the revolving platform is rotated in a second direction, θ from the zero degree position, the position that the reference line is reached, the zero degree position
It is set to the revolving platform not carry out turning round position when operating where the reference line, the reference line is for any one along institute
State the radial ray of revolving platform, the revolution overlapping region be first critical localisation and second critical localisation it
Between region.
Further, the judgment method further include: when being detected simultaneously by the second signal and the third signal, or
When being detected simultaneously by first signal and the fourth signal, judge that the revolving platform initially moves off the revolution overlay region
Domain and in the revolution range of the revolving platform.
Further, the judgment method further include:
When being detected simultaneously by first signal and the third signal, or it is detected simultaneously by the second signal and described
When fourth signal, sound an alarm.
Further, the judgment method further include:
When being detected simultaneously by first signal and the third signal, the revolving platform is controlled along the second party
To revolution；
When being detected simultaneously by the second signal and the fourth signal, the revolving platform is controlled along the first party
To revolution.
Technical solution provided in an embodiment of the present invention has the benefit that
By when detect revolving platform be rotated in a first direction to reference line reach the first critical localisation when, generate first
Signal；When detect revolving platform be rotated in a second direction, to reference line reach the second critical localisation when, generate second signal；When
Detect revolving platform be rotated in a first direction to reference line initially enter revolution overlapping region when, be continuously generated third signal,
And until reference line leaves revolution overlapping region；When detect revolving platform along the second direction turn to reference line start into
When entering to turn round overlapping region, it is continuously generated fourth signal, and until reference line leaves revolution overlapping region；If being detected simultaneously by
One signal and third signal may determine that revolving platform has been rotated in a first direction to maximum angle position, then so as to keep away
Exempt to continue to control revolving platform and rotate along a first direction and the case where cable-pulling chain damage occur, if being detected simultaneously by the second letter
Number and fourth signal, then may determine that revolving platform has been rotated in a second direction, to maximum angle position, so as to avoid after
Continuous control revolving platform rotates along second direction and the case where cable-pulling chain damage occurs, makes it possible to accurately know that revolution is flat
The working condition of platform avoids the occurrence of the case where revolving platform is more than its revolution range in turning course, and then prevents cable from dragging
Chain is damaged, and guarantee can be worked normally around stake formula isolated pillar crane.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of top view around stake formula isolated pillar crane provided in an embodiment of the present invention；
Fig. 2 is another top view around stake formula isolated pillar crane provided in an embodiment of the present invention；
Fig. 3 is a kind of judgment means of revolution overlapping region around stake formula isolated pillar crane provided in an embodiment of the present invention
Structural schematic diagram；
Fig. 4 is a kind of structural schematic diagram of detection module around stake formula isolated pillar crane provided in an embodiment of the present invention；
Fig. 5 is the top view of another detection module around stake formula isolated pillar crane provided in an embodiment of the present invention；
Fig. 6 is a kind of judgment method of revolution overlapping region around stake formula isolated pillar crane provided in an embodiment of the present invention
Method flow diagram.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
In order to better understand the present invention, the structure around stake formula isolated pillar crane is first briefly described below:
Fig. 1 is a kind of top view around stake formula isolated pillar crane provided in an embodiment of the present invention, as shown in Figure 1, around stake formula
Isolated pillar crane mainly includes pilum 1, revolving platform 2 and derricking gear (not shown), and revolving platform 2 is rotatably arranged
On pilum 1, derricking gear is then arranged on revolving platform 2, and all there are enough at the middle part of the middle part of pilum 1 and revolving platform 2
Space so that spud leg 3 is extended there through.The revolution range of revolving platform 2 is ± θ, 180 ° of 360 ° of < θ <, the first critical localisation M
When rotating θ along first direction a from zero degree position O for revolving platform 2, the position that reference line P is reached, the second critical localisation N is
Revolving platform from zero degree position O in a second direction b rotate θ when, the position that reference line P is reached, zero degree position O be revolving platform
The position (position where reference line P as shown in figure 1) when revolution operation where reference line P is not carried out, and reference line P is any one
Along the radial ray of revolving platform 2, area of the overlapping region S between the first critical localisation M and the second critical localisation N is turned round
Domain.
When revolving platform 2 does not carry out revolution operation, revolving platform is rotary along first direction a and second direction b
Angle is equal (position indicated by the reference line P on revolving platform 2 can usually be demarcated as zero degree position O at this time),
For θ, therefore the revolution range of revolving platform is ± θ, i.e., expression revolving platform at most can be with along first direction a from zero degree position O
θ is rotated, b can also at most rotate θ in a second direction from zero degree position O.
As an example, when the revolution range of revolving platform 2 is ± 200 °, as shown in Figure 1, when revolving platform 2 does not carry out
When revolution operation, reference line P is located at zero degree position O.First critical localisation M is for revolving platform 2 from zero degree position O along first direction
When a rotates 200 °, the position that reference line P is reached, the second critical localisation N is revolving platform from zero degree position O b in a second direction
When rotating 200 °, the position that reference line P is reached, revolution overlapping region S be the first critical localisation M and the second critical localisation N it
Between 40 ° of regions.For the ease of distinguishing, angle when revolving platform is rotated along first direction a takes positive value, and b turns in a second direction
Angle when dynamic takes negative value.Fig. 2 is another top view around stake formula isolated pillar crane provided in an embodiment of the present invention, such as Fig. 2
Shown, when revolving platform 2 returns back to revolution overlapping region S, reference line P is located at turn around in the S of overlapping region at this time.
Fig. 3 is a kind of judgment means of revolution overlapping region around stake formula isolated pillar crane provided in an embodiment of the present invention
Structural schematic diagram, as shown in figure 3, the judgment means include detection module 100, logic module 200.
Detection module 100 is used to turn to reference line P along first direction a when the revolving platform 2 around stake formula isolated pillar crane
When reaching the first critical localisation M, the first signal is generated；When b turns to reference line P arrival second to revolving platform 2 in a second direction
When critical localisation N, second signal is generated；Revolution overlapping is initially entered when revolving platform 2 turns to reference line P along first direction a
When the S of region, it is continuously generated third signal, and until reference line P leaves revolution overlapping region S；When revolving platform 2 in a second direction
When b turns to reference line P and initially enters revolution overlapping region S, it is continuously generated fourth signal, and until reference line P leaves revolution
Overlapping region S.
When specific implementation, detection module 100 may include that the collision block being arranged on the pilum 1 of crane and setting are being turned round
Limit switch on platform 2.Fig. 4 is a kind of structure of detection module around stake formula isolated pillar crane provided in an embodiment of the present invention
Schematic diagram, as shown in figure 4, it includes edge that collision block, which includes the first collision block 110, the second collision block 120 and third collision block 130, limit switch,
Reference line is arranged at the first limit switch 110a, the second limit switch 120a and third limit switch on revolving platform 2
130a。
First collision block 110 is located at the first critical localisation M, and the second collision block 120 is located at the second critical localisation N, third collision block 130
Between the first critical localisation M and the second critical localisation N, and the edge of third collision block 130 and the first critical localisation M and second
Critical localisation N alignment.
The central angle that third collision block 130 in fan annular, can fan ring can be equal to the angle of revolution overlapping region S, such as
40 ° (as shown in Figure 1) in the present embodiment.
First limit switch 110a to revolving platform 2 shaft distance and the first collision block 110 arrive revolving platform 2 shaft
Be equidistant, the distance of the shaft of the second limit switch 120a to revolving platform 2 and the second collision block 120 to revolving platform 2
Shaft is equidistant, and the distance and third collision block 130 of the shaft of third limit switch 130a to revolving platform 2 arrive revolving platform
2 shaft is equidistant so that revolving platform 2 in the course of rotation the limit switch on revolving platform 2 can with it is right
The collision block interference answered.
Specifically, limit switch may include Switch main body and pivoted arm, by taking the first limit switch 110a as an example, such as Fig. 4 institute
Showing, the first limit switch 110a may include Switch main body 111 and pivoted arm 112, and Switch main body 111 is fixed on revolving platform 2,
Pivoted arm 112 is rotatably arranged on Switch main body 111, and the pivot center of pivoted arm 112 is overlapped with reference line P, and pivoted arm 112 is used
It is rotated under the interference in the first collision block 110.When the first limit switch 110a is rotated with revolving platform 2, pivoted arm 112 can be with
First collision block 110 interferes and turns an angle, to generate the first signal, and the first limit switch 110a is only in revolving platform
2 along first direction a rotate when, generate the first signal.
Specifically, Fig. 5 is the vertical view of another detection module around stake formula isolated pillar crane provided in an embodiment of the present invention
Figure, as shown in figure 5, when the first limit switch 110a turns to pivoted arm along first direction a and the first collision block 110 contacts, first
Right side rotation of the pivoted arm 112 of limit switch 110a into Fig. 5, generates the first signal.And when the first limit switch 110a is along the
Two direction b turn to pivoted arm 112 and when the first collision block 110 contact, since pivoted arm 112 deflects in the opposite direction, thus first
Limit switch 110a does not generate signal.
It should be noted that the second limit switch 120a only revolving platform 2 in a second direction b rotate when, generate second
Signal, third limit switch 130a only when revolving platform 2 is rotated along first direction a, generate third signal, third limit switch
130a only when b is rotated revolving platform 2 in a second direction, generates fourth signal.
Specifically, when b turns to the pivoted arm and of the second limit switch 120a to the second limit switch 120a in a second direction
When two collision blocks 120 contact, left pivot movement of the pivoted arm of the second limit switch 120a into Fig. 5 generates second signal.And when second
Limit switch 120a turns to the pivoted arm of the second limit switch 120a along first direction a and when the second collision block 120 contacts, due to
The pivoted arm of two limit switch 120a deflects in the opposite direction, thus the second limit switch 120a does not generate signal.
When third limit switch 130a along first direction a turn to third limit switch 130a pivoted arm and third collision block
When 130 contact, right side rotation of the pivoted arm of third limit switch 130a into Fig. 5, and left back in third limit switch 130a
Before turning overlapping region, the deflection direction of the pivoted arm of third limit switch 130a will not change, therefore persistently generate third signal.
When b turns to the pivoted arm of third limit switch 130a and when third collision block 130 contacts third limit switch 130a in a second direction,
Left pivot movement of the pivoted arm of third limit switch 130a into Fig. 5, and revolution overlapping region is left in third limit switch 130a
Before, the deflection direction of the pivoted arm of third limit switch 130a will not change, therefore persistently generate fourth signal.
Logic module 200 is for detecting the first signal, second signal, third signal and fourth signal to judge revolving platform
2 working condition.Logic module 200 can be electrically connected with the first limit switch, the second limit switch and third limit switch respectively
It connects.
When logic module 200 is detected simultaneously by the first signal and third signal, judge revolving platform 2 along first direction
A turns to maximum angle position.For example, in the present embodiment, when logic module 200 is detected simultaneously by the first signal and third letter
Number when, then judge that revolving platform 2 has turned to 200 ° of position along first direction a.
When being detected simultaneously by second signal and fourth signal, judge that b turns to maximum to revolving platform 2 in a second direction
Angle position.For example, in the present embodiment, when logic module 200 is detected simultaneously by second signal and fourth signal, then judging
B has turned to -200 ° of position to revolving platform 2 in a second direction.
Further, logic module 200 is also used to be detected simultaneously by second signal and third signal when logic module 200,
Or when being detected simultaneously by the first signal and fourth signal, judge that revolving platform 2 initially moves off revolution overlapping region S and puts down in revolution
In the revolution range of platform 2.
Specifically, when logic module 200 is detected simultaneously by second signal and third signal, then it may determine that revolving platform
2 along first direction a be rotated into revolution overlapping region S after, and in a second direction b be rotated away from revolution overlapping region S.Work as logic
When module 200 is detected simultaneously by the first signal and fourth signal, then judge that b is rotated into revolution to revolving platform 2 in a second direction
After the S of overlapping region, and revolution overlapping region S is rotated away from along first direction a.
The present invention by when detect revolving platform be rotated in a first direction reach the first critical localisation to reference line when, it is raw
At the first signal；When detect revolving platform be rotated in a second direction, to reference line reach the second critical localisation when, generate second
Signal；When detect revolving platform be rotated in a first direction initially enter revolution overlapping region to reference line when, be continuously generated the
Three signals, and until reference line leaves revolution overlapping region；When detecting that revolving platform turns to reference along the second direction
When line initially enters revolution overlapping region, it is continuously generated fourth signal, and until reference line leaves revolution overlapping region；If simultaneously
It detects the first signal and third signal, then may determine that revolving platform has been rotated in a first direction to maximum angle position, from
And can be rotated along a first direction to avoid continuing to control revolving platform and the case where cable-pulling chain damage occur, if detecting simultaneously
To second signal and fourth signal, then it may determine that revolving platform has been rotated in a second direction, to maximum angle position, so as to
There is the case where cable-pulling chain damage to avoid continuing to control revolving platform along second direction rotation, makes it possible to accurately obtain
The working condition for knowing revolving platform avoids the occurrence of the case where revolving platform is more than its revolution range in turning course, Jin Erfang
Only cable-pulling chain is damaged, and guarantee can be worked normally around stake formula isolated pillar crane.
Further, the judgment means around the revolution overlapping region of stake formula isolated pillar crane can also include alarm module
300, alarm module 300 is used to be detected simultaneously by the first signal and third signal when logic module 200, or is detected simultaneously by second
It when signal and fourth signal, sounds an alarm, when alarm module 300 sounds an alarm, then illustrates that revolving platform 2 has turned to maximum
Angle can remind operator to pay attention to this.
In specific implementation, alarm module 300 can be but be not limited to buzzer, indicator light or a combination thereof, alarm
It can be but be not limited to sound, flash of light or a combination thereof.
Further, the judgment means around the revolution overlapping region of stake formula isolated pillar crane can also include control module
400, control module 400 is used for when logic module 200 is detected simultaneously by the first signal and third signal, controls revolving platform 2
B is rotated in a second direction, and when logic module 200 is detected simultaneously by second signal and fourth signal, control revolving platform 2 is along the
One direction a rotation continues to rotate revolving platform and occurs damaging the feelings of cable-pulling chain to avoid operator's maloperation
Condition.
Specifically, logic module 200 can be electrically connected with detection module 100, alarm module 300 and control module 400 respectively
It connects.
Fig. 6 is a kind of judgment method of revolution overlapping region around stake formula isolated pillar crane provided in an embodiment of the present invention
Method flow diagram, as shown in fig. 6, the judgment method is suitable for shown in Fig. 1~5 around the revolution overlay region of stake formula isolated pillar crane
The judgment means in domain, the judgment method include:
Step 610 obtains detection signal.
When realization, step 610 can be executed by detection module 100 above-mentioned.
Specifically, first is reached when the revolving platform 2 around stake formula isolated pillar crane turns to reference line P along first direction a
When critical localisation M, the first signal is generated.
When b turns to reference line P the second critical localisation N of arrival to revolving platform 2 in a second direction, second signal is generated.
When revolving platform 2, which turns to reference line P along first direction a, initially enters revolution overlapping region S, it is continuously generated the
Three signals, and until reference line P leaves revolution overlapping region S.
When b turns to reference line P and initially enters revolution overlapping region S revolving platform 2 in a second direction, it is continuously generated the
Four signals, and until reference line P leaves revolution overlapping region S.
Step 620, the revolution working condition that revolving platform is judged according to detection signal.
When realization, step 620 can be executed by logic module 200 above-mentioned.
Specifically, when being detected simultaneously by the first signal and third signal, judge that revolving platform 2 has been rotated in a first direction
Judge that revolving platform 2 has been rotated in a second direction, when being detected simultaneously by second signal and fourth signal to maximum angle position
To maximum angle position.
Further, step 620 can also include:
When being detected simultaneously by second signal and third signal, or being detected simultaneously by the first signal and fourth signal, judgement
Revolving platform 2 initially moves off revolution overlapping region S and in the revolution range of revolving platform 2.
Specifically, when being detected simultaneously by second signal and third signal, then judge that revolving platform 2 turns along first direction a
After the dynamic overlapping region S into revolution, and b is rotated away from revolution overlapping region S in a second direction.When logic module 200 is examined simultaneously
When measuring the first signal and fourth signal, then judge revolving platform 2 in a second direction b be rotated into revolution overlapping region S after, again
Revolution overlapping region S is rotated away from along first direction a.
Preferably, which can also include:
Step 630, when being detected simultaneously by the first signal and third signal, or be detected simultaneously by second signal and fourth signal
When, it sounds an alarm.
Step 640, when being detected simultaneously by the first signal and third signal, control revolving platform 2 in a second direction b return
Turn, when being detected simultaneously by second signal and fourth signal, control revolving platform 2 is turned round along first direction a.
Wherein, step 630~640 are optional step.
The present invention by when detect revolving platform be rotated in a first direction reach the first critical localisation to reference line when, it is raw
At the first signal；When detect revolving platform be rotated in a second direction, to reference line reach the second critical localisation when, generate second
Signal；When detect revolving platform be rotated in a first direction initially enter revolution overlapping region to reference line when, be continuously generated the
Three signals, and until reference line leaves revolution overlapping region；When detecting that revolving platform turns to reference along the second direction
When line initially enters revolution overlapping region, it is continuously generated fourth signal, and until reference line leaves revolution overlapping region；If simultaneously
It detects the first signal and third signal, then may determine that revolving platform has been rotated in a first direction to maximum angle position, from
And can be rotated along a first direction to avoid continuing to control revolving platform and the case where cable-pulling chain damage occur, if detecting simultaneously
To second signal and fourth signal, then it may determine that revolving platform has been rotated in a second direction, to maximum angle position, so as to
There is the case where cable-pulling chain damage to avoid continuing to control revolving platform along second direction rotation, makes it possible to accurately obtain
The working condition for knowing revolving platform avoids the occurrence of the case where revolving platform is more than its revolution range in turning course, Jin Erfang
Only cable-pulling chain is damaged, and guarantee can be worked normally around stake formula isolated pillar crane.
It should be understood that the judgment means of the revolution overlapping region provided by the above embodiment around stake formula isolated pillar crane
It, only the example of the division of the above functional modules, can be in practical application when carrying out the control of isolated pillar crane
Above-mentioned function distribution is completed by different functional modules as needed, i.e., the internal structure of equipment is divided into different function
Energy module, to complete all or part of the functions described above.In addition, provided by the above embodiment around stake formula isolated pillar crane
The judgment means of revolution overlapping region and the judgment method embodiment of the revolution overlapping region around stake formula isolated pillar crane belong to
Same design, specific implementation process are detailed in embodiment of the method, and which is not described herein again.
Those of ordinary skill in the art will appreciate that realizing that all or part of the steps of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can store in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of judgment means of the revolution overlapping region around stake formula isolated pillar crane, which is characterized in that the judgment means packet
It includes:
Detection module, for facing when the revolving platform around stake formula isolated pillar crane is rotated in a first direction to reference line arrival first
When boundary position, the first signal is generated；
When the revolving platform, which is rotated in a second direction, reaches the second critical localisation to the reference line, second signal is generated；
It is lasting raw when the revolving platform, which turns to the reference line along the first direction, initially enters revolution overlapping region
At third signal, and until the reference line leaves the revolution overlapping region；
When the revolving platform, which turns to the reference line along the second direction, initially enters the revolution overlapping region, hold
It is continuous to generate fourth signal, and until the reference line leaves the revolution overlapping region；
Logic module judges that the revolution is flat for detecting first signal, second signal, third signal and fourth signal
The working condition of platform judges the revolving platform along institute when being detected simultaneously by first signal and the third signal
It states first direction and turns to maximum angle position, when being detected simultaneously by the second signal and the fourth signal, judge institute
It states revolving platform and turns to maximum angle position along the second direction；
Wherein, the revolution range of the revolving platform is ± θ, and 180 ° of 360 ° of < θ <, first critical localisation is the revolution
When platform is rotated in a first direction θ from zero degree position, the position that the reference line is reached, second critical localisation is described
When revolving platform is rotated in a second direction, θ from the zero degree position, the position that the reference line is reached, the zero degree position is
The revolving platform does not carry out position when revolution operation where the reference line, and the reference line is any one along described time
Turn the radial ray of platform, the revolution overlapping region is between first critical localisation and second critical localisation
Region.
2. judgment means according to claim 1, which is characterized in that the logic module is also used to, when the logic mould
Block is detected simultaneously by the second signal and the third signal, or is detected simultaneously by first signal and the fourth signal
When, judge that the revolving platform initially moves off the revolution overlapping region and in the revolution range of the revolving platform.
3. judgment means according to claim 1, which is characterized in that the judgment means further include alarm module, described
Alarm module is used for,
When the logic module is detected simultaneously by first signal and the third signal, or it is detected simultaneously by second letter
Number and when the fourth signal, sound an alarm.
4. judgment means according to claim 1, which is characterized in that the judgment means further include control module, described
Control module is used for,
When the logic module is detected simultaneously by first signal and the third signal, the revolving platform is controlled along institute
State second direction rotation；
When the logic module is detected simultaneously by the second signal and the fourth signal, the revolving platform is controlled along institute
State first direction rotation.
5. judgment means according to claim 1, which is characterized in that the detection module includes being arranged in the crane
Pilum on collision block and the limit switch that is arranged on the revolving platform, the collision block include the first collision block, the second collision block
With third collision block, the limit switch includes that the first limit being arranged on the revolving platform along the reference line is opened
Pass, the second limit switch and third limit switch；
First collision block is located at first critical localisation, and second collision block is located at second critical localisation, and described
Three collision blocks are between first critical localisation and second critical localisation, and the edge of the third collision block and described the
One critical localisation and second critical localisation alignment；
The distance of shaft of first limit switch to the revolving platform and first collision block to the revolving platform
Shaft is equidistant, and the distance of shaft of second limit switch to the revolving platform and second collision block are described in
The shaft of revolving platform is equidistant, the distance and the third of shaft of the third limit switch to the revolving platform
The shaft of collision block to the revolving platform is equidistant.
6. judgment means according to claim 5, which is characterized in that the limit switch includes Switch main body and pivoted arm,
The Switch main body is fixed on the revolving platform, and the pivoted arm is rotatably arranged on the Switch main body, and described
The pivot center of pivoted arm is overlapped with the reference line, and the pivoted arm under the interference of the collision block for rotating.
7. a kind of judgment method of the revolution overlapping region around stake formula isolated pillar crane, which is characterized in that the judgment method packet
It includes:
When the revolving platform around stake formula isolated pillar crane, which is rotated in a first direction, reaches the first critical localisation to reference line, generate
First signal；
When the revolving platform, which is rotated in a second direction, reaches the second critical localisation to the reference line, second signal is generated；
It is lasting raw when the revolving platform, which turns to the reference line along the first direction, initially enters revolution overlapping region
At third signal, and until the reference line leaves the revolution overlapping region；
When the revolving platform, which turns to the reference line along the second direction, initially enters the revolution overlapping region, hold
It is continuous to generate fourth signal, and until the reference line leaves the revolution overlapping region；
When being detected simultaneously by first signal and the third signal, judge the revolving platform along the first direction
Maximum angle position is turned to, when being detected simultaneously by the second signal and the fourth signal, judges the revolving platform
Maximum angle position is turned to along the second direction；
Wherein, the revolution range of the revolving platform is ± θ, and 180 ° of 360 ° of < θ <, first critical localisation is the revolution
When platform is rotated in a first direction θ from zero degree position, the position that the reference line is reached, second critical localisation is described
When revolving platform is rotated in a second direction, θ from the zero degree position, the position that the reference line is reached, the zero degree position is
The revolving platform does not carry out position when revolution operation where the reference line, and the reference line is any one along described time
Turn the radial ray of platform, the revolution overlapping region is between first critical localisation and second critical localisation
Region.
8. judgment method according to claim 7, which is characterized in that the judgment method further include: when being detected simultaneously by
The second signal and the third signal, or when being detected simultaneously by first signal and the fourth signal, described in judgement
Revolving platform initially moves off the revolution overlapping region and in the revolution range of the revolving platform.
9. judgment method according to claim 7, which is characterized in that the judgment method further include:
When being detected simultaneously by first signal and the third signal, or it is detected simultaneously by the second signal and the described 4th
When signal, sound an alarm.
10. judgment method according to claim 7, which is characterized in that the judgment method further include:
When being detected simultaneously by first signal and the third signal, controls the revolving platform and returned along the second direction
Turn；
When being detected simultaneously by the second signal and the fourth signal, controls the revolving platform and returned along the first direction
Turn.
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| CN108756781B (en) * | 2018-05-23 | 2023-07-04 | 江苏徐工工程机械研究院有限公司 | Control device for crane boom of vehicle-mounted drilling machine |
| CN109534170B (en) * | 2018-12-08 | 2024-01-30 | 安徽柳工起重机有限公司 | Rotation detection device of overhead working truck |
| CN109917849B (en) * | 2019-03-12 | 2020-11-13 | 湖南星邦智能装备股份有限公司 | Rotary table rotation electrical limiting device, control method and engineering machinery vehicle |
| CN114939792B (en) * | 2022-07-25 | 2022-11-01 | 沈阳机床(集团)有限责任公司 | Five-axis head C-axis rotation angle limiting method |
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| FR2458504A1 (en) * | 1979-06-11 | 1981-01-02 | Simon Francois | Operation monitor for two adjacent cranes - prevents their collision by monitoring their geographical positions and detecting angular position of each jib |
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