CN108569628A - Deck crane system - Google Patents
Deck crane system Download PDFInfo
- Publication number
- CN108569628A CN108569628A CN201810165745.1A CN201810165745A CN108569628A CN 108569628 A CN108569628 A CN 108569628A CN 201810165745 A CN201810165745 A CN 201810165745A CN 108569628 A CN108569628 A CN 108569628A
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- CN
- China
- Prior art keywords
- hydraulic pump
- deck crane
- efficiency
- main motor
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- 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
- B66C23/18—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 specially adapted for use in particular purposes
- B66C23/36—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 specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
- B66C23/52—Floating cranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/20—Control systems or devices for non-electric drives
-
- 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 present invention provides a kind of deck crane system for the state that can reliably grasp hydraulic pump.Deck crane system has：Deck crane is configured at the deck of ship；Fluid pressure drive device, the main motor with the hydraulic circuit comprising hydraulic pump, driving hydraulic pump, and the fluid pressure drive device drives deck crane；Processing unit controls deck crane and fluid pressure drive device, and the ratio of the power of the power based on main motor and hydraulic pump, calculates the efficiency of hydraulic pump, in the case where result of calculation is less than threshold value, exports notification signal.
Description
Technical field
The present invention relates to a kind of deck crane systems.
Background technology
For ship, there is the ship as the equipment taken goods, unloaded to cargo with deck crane.Special
The deck crane that the fluid pressure drive device comprising hydraulic pump is used as to driving source is recorded in sharp document 1.
Existing technical literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2002-220189 bulletins
Invention content
Problems to be solved by the invention
Because being moved together with ship, the chance safeguarded is limited above-mentioned deck crane.For example, if liquid
Press pump breaks down in undesirable place, it is likely that can not use deck crane, or will be in not maintained equipment
Place places under repair, and utilization ratio reduces.
The present invention makes in view of the above problems, it is intended that hydraulic pump can reliably be grasped by providing one kind
State deck crane system.
Means for solving the problems
The deck crane system of the present invention has：Deck crane is configured at the deck of ship；Hydraulic-driven fills
It sets, the main motor with the hydraulic circuit comprising hydraulic pump, the driving hydraulic pump, and the fluid pressure drive device drives
The deck crane；Processing unit controls the deck crane and the fluid pressure drive device, and is based on the master
The ratio of the power of the power of motor and the hydraulic pump calculates the efficiency of the hydraulic pump, in result of calculation less than threshold value
In the case of, export notification signal.
According to the present invention, because exporting notification signal in the case where the efficiency of hydraulic pump is less than threshold value, deck is risen
Operator of heavy-duty machine etc. can be based on notification signal, be dropped in the state of grasp hydraulic pump.Thereby, it is possible to reliably grasp hydraulic pump
State.
In addition, in above-mentioned deck crane system, the deck crane can have the notification unit of output alarm, institute
It can be the signal for making the notification unit export the alarm to state notification signal.
According to the present invention, because exporting alarm, first from notification unit in the case where the efficiency of hydraulic pump is less than threshold value
Operator of plate crane etc. can easily grasp the state of hydraulic pump.
In addition, in above-mentioned deck crane system, the result of calculation of the efficiency of the hydraulic pump be the threshold value with
In the case of upper, in the case where the reduction amount of the efficiency of the hydraulic pump of unit interval is more than second threshold, the processing
Device can export the notification signal.
According to the present invention, because also defeated the case where the reduction amount of the efficiency of the hydraulic pump of unit interval is more than second threshold
It puts up a notice signal, so operator of deck crane etc. can be based on dropping in the state that notification signal grasps hydraulic pump.As a result,
The state of hydraulic pump can reliably be grasped.
In addition, above-mentioned deck crane system can be also equipped with the current detecting for the current value for detecting the main motor
Portion, the voltage reference value of testing result and the main motor of the processing unit based on the current detecting part calculate institute
State the power of main motor.
According to the present invention, because the voltage reference value of testing result and main motor based on current detecting part calculates main electricity
The power of motivation, so the power of main motor can be calculated easily and highly accurately.
In addition, above-mentioned deck crane system can be also equipped with the discharge pressure detection of the discharge pressure of the detection hydraulic pump
Portion, the Flow datum value of testing result and the hydraulic pump of the processing unit based on the discharge pressure test section, calculates institute
State the power of hydraulic pump.
According to the present invention, because the Flow datum value of testing result and hydraulic pump based on discharge pressure test section calculates hydraulic pressure
The power of pump, so the power of hydraulic pump can be calculated easily and highly accurately.
【The effect of invention】
In accordance with the invention it is possible to provide the deck crane system for the state that can reliably grasp hydraulic pump.
Description of the drawings
Fig. 1 is the figure of an example of the deck crane system for indicating present embodiment.
Fig. 2 is the figure for an example for indicating deck crane.
Fig. 3 is the figure for an example for indicating fluid pressure drive device.
Fig. 4 is the block diagram for the structure for indicating deck crane system.
Fig. 5 is the flow chart of an example of the action for indicating deck crane system.
Fig. 6 is the curve graph of an example of the time change for indicating efficiency of hydraulic pump.
Fig. 7 is the curve graph of the other examples for the time change for indicating efficiency of hydraulic pump.
Reference sign
10 deck cranes
11 rotary bodies
11a notification units
12 cantilevers
12a base end parts
The front ends 12b
13 rotating devices
13a transmission mechanisms
14 elevation mounts
14a, 15a roller
15 lifting gears
16 pallets
16a bearing surfaces
17 pulleys
18 lifting cables
18a is linked up with
19 pitching cables
20 fluid pressure drive devices
21 main motors
22 hydraulic circuits
23,24,25 hydraulic pump
26,27,28 working oil delivery pipe
31 current detecting parts
33 first discharge pressure test sections
33,34,35 discharge pressure test section
34 second discharge pressure test sections
35 thirds discharge pressure test section
50 processing units
51 control units
52 storage parts
53 communication units
61 main motor power calculating parts
62 hydraulic pump power calculation portions
63 efficiency of hydraulic pump calculating parts
64 judging parts
65 notification signal output sections
71 voltage reference value storage parts
72 Flow datum value storage parts
73 first threshold storage parts
74 second threshold storage parts
100 deck crane systems
101 ships
102 decks
C objects
E0First threshold
Z vertical directions
AX1 rotary shafts
AX2 pitch axis
EfEfficiency of hydraulic pump
T1, t2, t3, t4 moment
WeMain motor power
Wh1, Wh2, WlsPower
WpHydraulic pressure pump power
Specific implementation mode
Hereinafter, being based on attached drawing, the embodiment of the deck crane system of the present invention is illustrated.It should be noted that not
It is limited the invention using the embodiment.In addition, including this field skill in inscape in following embodiments
Art personnel can be easy the element of displacement or substantially the same element.
Fig. 1 is the figure for an example for indicating deck crane system 100.Deck crane system 100 is arranged in freighter
On the deck 102 of equal ships 101, used in the case where carrying out loading and the unloading operation etc. of object C to ship 101
Implement.Deck crane system 100 has deck crane 10, fluid pressure drive device 20, processing unit 50.
More, such as setting four is arranged in deck crane 10 on deck 102, but does not limit number of units.Fig. 2 is to indicate
The figure of one example of deck crane 10.As shown in Fig. 2, deck crane 10 has rotary body 11, cantilever 12, rotating device
13, elevation mount 14, lifting gear 15.Rotary body 11 configures on being set to the pallet 16 of ship 101.Rotary body 11 is set
For that can be rotated around the axis of the rotary shaft AX1 vertical with the bearing surface 16a of pallet 16.Rotary body 11 has output alarm
Notification unit 11a.Notification unit 11a is used with the equipment of the notice alarms such as such as sound, light, various displays.
The component that cantilever 12 is bar-like, base end part 12a are installed on rotary body 11.Cantilever 12 in base end part 12a, can around with
The axis oscillating of the pitch axis AX2 of horizontal direction parallel.Cantilever 12 has pulley 17 in front end 12b.It is hung in 17 frame of pulley
Lifting cable 18 for slinging object C.Lifting is installed on the rolling of aftermentioned lifting gear 15 with the base end part of cable 18
Cylinder 15a.Lifting cable 18 has the hook 18a for hanging object C in front end.Pitching line is installed in cantilever 12
Cable 19.The one end of pitching cable 19 is mounted on the base end part 12a in cantilever 12 and the part between the 12b of front end, another
End is mounted on the roller 14a of aftermentioned elevation mount 14.
Rotating device 13 makes rotary body 11 be rotated around the axis of rotary shaft AX1 by the driving force of fluid pressure drive device 20.
Rotating device 13 has the transmission mechanism 13a that the driving force of fluid pressure drive device 20 is transferred to rotary body 11.
Elevation mount 14 makes roller 14a rotate using the driving force of fluid pressure drive device 20, makes cantilever 12 around pitch axis AX2
Axis oscillating.Elevation mount 14 is by winding pitching cable 19, and making cantilever 12, (front end 12b is to upside to nose-up direction
Mobile direction) it swings.Elevation mount 14 by export pitching cable 19, make cantilever 12 to nutation direction (front end 12b to
The direction of downside movement) it swings.Elevation mount 14 makes cantilever 12 by carrying out winding and output of the pitching with cable 19 as a result,
It is swung to nose-up direction and nutation direction.
Lifting gear 15 makes roller 15a rotate using the driving force of fluid pressure drive device 20, carries out lifting cable 18
Winding and output.Lifting gear 15 makes hook 18a rise by winding lifting cable 18.Lifting gear 15 is risen by exporting
Drop cable 18, makes hook 18a decline.Lifting gear 15 makes extension by carrying out winding and the output of lifting cable 18 as a result,
Hook 18a is lifted along vertical direction.
Fig. 3 is the figure for an example for indicating fluid pressure drive device 20.As shown in figure 3, fluid pressure drive device 20 has master
Motor 21, hydraulic circuit 22.Main motor 21 from power supply unit (not shown) of such as ship 101 etc. receive electric power supply and
Generate rotary driving force.Main motor 21 has current detecting part 31.Current detecting part 31 detects the current value of main motor 21,
Testing result is output to control device 50.
Hydraulic circuit 22 has hydraulic pump 23,24,25, working oil delivery pipe 26,27,28.Hydraulic pump 23,24,25 passes through
Working oil is output to working oil delivery pipe 26,27,28 by the rotary driving force of main motor 21.Working oil delivery pipe 26,27,28
It is provided with the valve (not shown) etc. of control working oil.
Working oil delivery pipe 26 makes the working oil exported from hydraulic pump 23 be passed to the lifting gear 15 of deck crane 10.
In working oil delivery pipe 26 test section 33 is pressed configured with the first discharge.First discharge pressure test section 33 detects the discharge of hydraulic pump 23
Pressure, processing unit 50 is output to by testing result.
Working oil delivery pipe 27 makes the working oil exported from hydraulic pump 24 be passed to the rotating device 13 of deck crane 10
And elevation mount 14.In working oil delivery pipe 27 test section 34 is pressed configured with the second discharge.Second discharge pressure test section 34 detects
Testing result is output to processing unit 50 by the discharge pressure of hydraulic pump 24.
Working oil delivery pipe 28 makes the working oil exported from hydraulic pump 25 be passed to the lifting gear 15 of deck crane 10.
In working oil delivery pipe 28 configured with third discharge pressure test section 35.Third discharge pressure test section 35 detects the discharge of hydraulic pump 25
Pressure, processing unit 50 is output to by testing result.
Fig. 4 is the block diagram for the structure for indicating deck crane system 100.As shown in figure 4, processing unit 50 has control unit
51, storage part 52, communication unit 53.Processing unit 50 can be only fitted to ship 101, can also configure different from ship 101
Place.
The control of control unit 51 includes the action of each section including deck crane 10 and fluid pressure drive device 20.Control unit
51 can be realized using control circuit, can also utilize PLC (programmable logic controller：Programmable
Logic controller) it realizes.The control unit 51 of Fig. 4 is also to hydraulic pump 23,24,25, the valve etc. of working oil delivery pipe 26,27,28
It is controlled.
Control unit 51 has main motor power calculating part 61, hydraulic pump power calculation portion 62, efficiency of hydraulic pump calculating part
63, judging part 64, notification signal output section 65.Main motor power calculating part 61 calculates main motor power.Main motor work(
Rate is the power of main motor 21.Testing result of the main motor power calculating part 61 based on current detecting part 31, main motor
21 voltage reference value calculates main motor power We.It should be noted that the testing result of current detecting part 31 is measured value, phase
For this, voltage reference value is theoretical value.
Here, if the testing result of current detecting part 31 is set as I (A), and voltage reference value is set as E (V), then it leads
Motor power (output) We(kW) it is indicated by formula below (1).It should be noted that in formula (1), cos θ are power factors.
3 × I of We=√ × E × cos θ (1)
Hydraulic pump power calculation portion 62 calculates hydraulic pressure pump power.Hydraulic pressure pump power is the power of each hydraulic pump 23,24,25
It is total.Therefore, hydraulic pump power calculation portion 62 calculates the power of each hydraulic pump 23,24,25 respectively, and it is total to find out it.
Specifically, hydraulic pump power calculation portion 62 presses the testing result of test section 33, hydraulic pump 23 based on the first discharge
Flow datum value, calculate hydraulic pump 23 power.In addition, hydraulic pump power calculation portion 62, which is based on the second discharge, presses test section 34
Testing result, the Flow datum value of hydraulic pump 24, calculate hydraulic pump 24 power.In addition, 62 base of hydraulic pump power calculation portion
Testing result, the Flow datum value of hydraulic pump 25 of pressure test section 35 is discharged in third, calculates the power of hydraulic pump 25.It should say
Bright, test section 34 is pressed in the first discharge pressure discharge of test section 33, second, the testing result of third discharge pressure test section 35 is actual measurement
Value, in contrast, each Flow datum value is theoretical value.
Here, if pressing the testing result of test section 33 to be set as p the first dischargeh1(MPa), test section is pressed into the second discharge
34 testing result is set as pls(MPa), the testing result for third being discharged to pressure test section 35 is set as ph2(MPa), by hydraulic pump 23
Flow datum value be set as Qh1(L/min), the Flow datum value of hydraulic pump 24 is set as Qls(L/min), and by hydraulic pump 25
Flow datum value is set as Qh2(L/min), then the power W of hydraulic pump 23h1(kW), the power W of hydraulic pump 24ls(kW), hydraulic pump 25
Power Wh2(kW) it is indicated by formula below (2), (3), (4).
Wh1=ph1×Qh1/60···(2)
Wls=pls×Qls/60···(3)
Wh2=ph2×Qh2/60···(4)
Therefore, hydraulic pressure pump power WpIt is indicated by formula below (5).
Wp=Wh1+Wls+Wh2···(5)
Result of calculation of the efficiency of hydraulic pump calculating part 63 based on main motor power calculating part 61, hydraulic pump power calculation portion
62 result of calculation calculates efficiency of hydraulic pump Ef.Efficiency of hydraulic pump EfIt is indicated by formula below (6).
Ef=Wp/We (6)
In addition, efficiency of hydraulic pump calculating part 63 is continuously calculated during main motor 21 and hydraulic pump 23,24,25 work
Go out efficiency of hydraulic pump Ef.Therefore, efficiency of hydraulic pump calculating part 63 also calculates the efficiency of hydraulic pump E of unit intervalfVariable quantity.
Judging part 64 judges whether the result of calculation of efficiency of hydraulic pump calculating part 63 is less than first threshold.In addition, in hydraulic pressure
In the case that the result of calculation of efficiency of pump calculating part 63 is first threshold or more, judging part 64 judges the hydraulic pressure pump efficiency of unit interval
Rate EfReduction amount whether be more than second threshold.Based on experiment and/or the data settings first threshold such as simulated experiment, measured value and
Second threshold, and it is stored in such as storage part 52.
In the case where the result of calculation of efficiency of hydraulic pump calculating part 63 is less than first threshold, notification signal output section 65 is defeated
It puts up a notice signal.Notification signal can be set as example making the signal of notification unit 11a output alarms.In addition, even if in hydraulic pump
In the case that the result of calculation in efficiency calculation portion 63 is first threshold or more, if the reduction of the efficiency of the hydraulic pump of unit interval
Amount is more than second threshold, and notification signal output section 65 also exports notification signal.
Storage part 52 has the memory such as hard disk drive, solid state disk.It should be noted that as storage part 52,
The exterior storage mediums such as moveable magnetic disc can be used.The storage of storage part 52 is for controlling deck crane 10 and hydraulic-driven dress
Set various programs and the data etc. of 20 equal actions.Storage part 52 has such as voltage reference value storage part 71, Flow datum value
Storage part 72, first threshold storage part 73, second threshold storage part 74.Communication unit 53 is carried out using wireless communication and other equipment
Communication, carries out the transmitting and receiving of data.The notification signal exported from notification signal output section 65 can be sent to by communication unit 53
It is external.
Then, using Fig. 5 to Fig. 7, the action of deck crane system 100 is illustrated.Fig. 5 is to indicate deck lifting
The flow chart of one example of the action of machine system 100.As shown in figure 5, main motor power calculating part 61 calculates main motor
Power We(step S10).In step slo, testing result of the main motor power calculating part 61 based on current detecting part 31, master
The voltage reference value of motor 21 calculates main motor power We。
Then, hydraulic pump power calculation portion 62 calculates total power (step S20) of hydraulic pump 23,24,25.In step
In S20, the testing result of pressure test section 33, the Flow datum of hydraulic pump 23 is discharged based on first in hydraulic pump power calculation portion 62
Value calculates the power of hydraulic pump 23.In addition, detection knot of the hydraulic pump power calculation portion 62 based on the second discharge pressure test section 34
Fruit, hydraulic pump 24 Flow datum value, calculate hydraulic pump 25 power.In addition, hydraulic pump power calculation portion 62 is arranged based on third
Go out to press the testing result of test section 35, the Flow datum value of hydraulic pump 25, calculates the power of pump 24.Also, press pump power calculation
Portion 62 finds out hydraulic pressure pump power Wp。
Then, efficiency of pump calculating part 63 calculates efficiency of hydraulic pump Ef(step S30).In rapid S30, press pump efficiency calculation portion
The 63 main motor power W based on the result of calculation as motivation power calculation portion 61e, as the calculating of pump power calculating part 62
As a result hydraulic pressure pump power Wp, calculate efficiency of pump Ef。
Next, it is determined that portion 64 judges whether the result of calculation of efficiency of hydraulic pump calculating part 63 is less than threshold value E0(step S40).
Judge that the result of calculation of efficiency of hydraulic pump calculating part 63 is less than first threshold E in judging part 640In the case of (step S40's
It is), notification signal output section 65 exports notification signal (step S50).In step s 50, notification signal output section 65 exports example
The signal of notification unit 11a output alarms is such as set to be used as notification signal.In this case, alarm is exported from notification unit 11a.
On the other hand, judge the result of calculation of efficiency of hydraulic pump calculating part 63 for feelings more than first threshold in judging part 64
Under condition (step S40's is no), judging part 64 judges the efficiency of hydraulic pump E of unit intervalfReduction amount whether be more than second threshold
(step S60).Judge the efficiency of hydraulic pump E of unit interval in judging part 64fReduction amount be more than second threshold in the case of (step
Suddenly S60's is), notification signal output section 65 exports notification signal (step S50).
In addition, judging the efficiency of hydraulic pump E of unit interval in judging partfReduction amount be second threshold it is below in the case of
(step S50's is no) does not export notification signal from notification signal output section 65, and ends processing.It should be noted that step S60
It can be omitted.In this case, in step s 40, judge that the result of calculation of efficiency of hydraulic pump calculating part 63 is in judging part 64
In the case of more than first threshold (step S40's is no), notification signal is not exported from notification signal output section 65, and at end
Reason.
Fig. 6 is to indicate efficiency of hydraulic pump EfTime change an example curve graph.The longitudinal axis of curve graph indicates liquid
Press pump efficiency Ef, the horizontal axis expression moment of curve graph.As shown in fig. 6, under the specification of for example common form, efficiency of hydraulic pump
EfIt is gradually reduced along with the process of time.In the example shown in Fig. 6, efficiency of hydraulic pump EfReach the first threshold in moment t1
Value E0If after the time t1, it is less than first threshold E0.It should be noted that the efficiency of hydraulic pump of the unit interval before moment t1
EfReduction amount be less than second threshold.
In the case shown in fig. 6, judging part 64 before time tl during, judge efficiency of hydraulic pump EfUnit when
Between reduction amount be less than second threshold.In this case, notification signal output section 65 does not export notification signal.Also, it is crossing
At the time of moment t1, judging part 64 judges that the result of calculation of efficiency of hydraulic pump calculating part 63 is less than first threshold E0.In the situation
Under, notification signal output section 65 exports notification signal, and alarm is exported from notification unit 11a.
Fig. 7 is to indicate efficiency of hydraulic pump EfTime change other examples curve graph.The longitudinal axis of curve graph indicates liquid
Press pump efficiency Ef, the horizontal axis expression moment of curve graph.In the example shown in Fig. 7, efficiency of hydraulic pump EfAlong with such as time
By and be gradually reduced until moment t2, strongly reduced from moment t2 to moment t3.Later, gradually subtract again since moment t3
It is small, become first threshold E in such as moment t40If after the time t4, it is less than first threshold E0.It should be noted that from the moment
The efficiency of hydraulic pump E of unit interval until t2 to moment t3fReduction amount be higher than second threshold.
In the case shown in figure 7, during judging part 64 is until moment t2 to moment t3, judge efficiency of hydraulic pump Ef
Unit interval reduction amount (Δ Ef/ Δ t) is more than second threshold.In this case, the output of notification signal output section 65 notice
Signal exports alarm from notification unit 11a.In addition, after such as moment t3, the case where fluid pressure drive device 20 continues action
Under, at the time of after the time t4, judging part 64 judges that the result of calculation of efficiency of hydraulic pump calculating part 63 is less than first threshold E0。
In this case, notification signal output section 65 exports notification signal, and alarm is exported from notification unit 11a.
More than, deck crane system 100 of the invention has：Deck crane 10 configures on the deck of ship 101
102；Fluid pressure drive device 20 with the hydraulic circuit 22 comprising hydraulic pump 23,24,25 and drives hydraulic pump 23,24,25
Main motor 21, and drive deck crane 10；Processing unit 50 controls deck crane 10 and fluid pressure drive device
20, and it is based on main motor power WeWith hydraulic pressure pump power WpRatio, calculate efficiency of hydraulic pump Ef, it is less than in result of calculation
In the case of threshold value, notification signal is exported.
According to the present embodiment, in efficiency of hydraulic pump EfIn the case of threshold value, the output of notification signal output section 65 is logical
Know signal, therefore operator of deck crane 10 etc. can be based on notification signal, in the state of grasp hydraulic pump 23,24,25
Drop.Thereby, it is possible to reliably grasp the state of hydraulic pump 23,24,25.
In addition, according to deck crane system 100, deck crane 10 has the notification unit 11a of output alarm, because logical
Know that signal is the signal for making notification unit 11a output alarms, so in efficiency of hydraulic pump EfIn the case of less than first threshold, from logical
Know that portion 11a exports alarm.Operator of deck crane 10 etc. can easily grasp the shape of hydraulic pump 23,24,25 as a result,
State.
In addition, in deck crane system 100, in efficiency of hydraulic pump EfResult of calculation be first threshold more than feelings
Under condition, in the efficiency of hydraulic pump E of unit intervalfReduction amount be more than second threshold in the case of, processing unit 50 output notice
Signal, therefore, operator of deck crane 10 etc. can be based on notification signals, in the state of grasp hydraulic pump 23,24,25
Drop.Thereby, it is possible to reliably grasp the state of hydraulic pump 23,24,25.
In addition, deck crane system 100 also has the current detecting part 31 of the current value of detection main motor 21, processing
The voltage reference value of testing result and main motor 21 of the device 50 based on current detecting part 31 calculates main motor power We,
Therefore, it is possible to easily and highly accurately calculate main motor power We。
In addition, deck crane system 100 is also equipped with the discharge pressure test section of the discharge pressure of detection hydraulic pump 23,24,25
33,34,35, the flow base of testing result and hydraulic pump 23,24,25 of the processing unit 50 based on discharge pressure test section 33,34,35
Quasi- value, calculates hydraulic pressure pump power Wp, therefore can easily and highly accurately calculate hydraulic pressure pump power Wp。
The technical scope of the present invention is not limited to the above embodiment, can be chased after in the range of no more than the purport of the present invention
Add change appropriate.For example, in the above-described embodiment, enumerating first threshold and second threshold distinguishing the situation of each setting one
For illustrate, but not limited to this.For example, at least one party in first threshold and second threshold can also set step by step
It is multiple.In addition, in the above-described embodiment, enumerates first threshold and second threshold is illustrated in case of constant,
But not limited to this, can also change first threshold and second threshold according to such as production time etc..Furthermore it is possible in view of ship
Time until oceangoing ship 101 reaches next berth sets first threshold and second threshold.That is, efficiency of hydraulic pump Ef is not
As long as be difficult to be continuing with the value of hydraulic pump 23,24,25 less than first threshold, and can be for example until reach it is next
The value that can continue to using hydraulic pump 23,24,25 until berth.
In addition, in the above-described embodiment, for hydraulic pressure pump power and efficiency of hydraulic pump, enumerating calculating hydraulic pump
23, it is illustrated in case of 24,25 total value, but not limited to this.For example, be configured to for each hydraulic pump 23,
24,25, hydraulic pressure pump power and efficiency of hydraulic pump are calculated, judging part 64 is directed to each hydraulic pump 23,24,25, judges result of calculation
Whether less than first threshold judge and in the case where result of calculation is more than first threshold the unit interval hydraulic pressure pump efficiency
Whether the reduction amount of rate is more than the judgement of second threshold.
In addition, in the above-described embodiment, calculating main motor power WeWhen, enumerate the inspection using current detecting part 31
Survey result (measured value) be used as current value, using voltage reference value (theoretical value) as voltage value in case of illustrate,
But not limited to this, it can also be configured to separately be arranged the voltage detection department of such as voltage value of detection main motor 21, use reality
Value of the measured value as both current value and voltage value.
Similarly, in the above-described embodiment, hydraulic pressure pump power W is being calculatedpWhen, it enumerates and presses test section using the first discharge
33, the testing result of the second discharge pressure test section 34 and third discharge pressure test section 35 is pressed as discharge, and uses flow base
Quasi- value (theoretical value) illustrates in case of being used as flow value, but not limited to this, can also be configured to that detection is separately arranged
Such as the flow testing division of the flow value of hydraulic pump 23,24,25, using measured value as the value that both pressure and flow value is discharged.
In addition, in the above-described embodiment, to enumerate notification signal, which be the case where making the signal of notification unit 11a output alarms, is
Example illustrates, but not limited to this.For example, notification signal can be the letter for exporting alarm to the notification unit being configured at remotely
Number.As such signal, for example, it can be the display devices of control centre in the berth for being configured at ship 101 etc.
Signal Deng display efficiency of hydraulic pump Ef less than the meaning of first threshold.In this case, control unit 51 is sent from communication unit 53
The notification signal exported from notification signal output section 65.
Claims (5)
1. a kind of deck crane system, which is characterized in that have：
Deck crane configures on the deck of ship；
Fluid pressure drive device, the main motor with the hydraulic circuit comprising hydraulic pump, the driving hydraulic pump, and the liquid
Hydraulic driver drives the deck crane；
Processing unit controls the deck crane and the fluid pressure drive device, and based on the work(of the main motor
The ratio of the power of rate and the hydraulic pump, calculates the efficiency of the hydraulic pump, defeated in the case where result of calculation is less than threshold value
It puts up a notice signal.
2. deck crane system as described in claim 1, which is characterized in that
The deck crane has the notification unit of output alarm,
The notification signal is the signal for making the notification unit export the alarm.
3. deck crane system as claimed in claim 1 or 2, which is characterized in that
In the case where the result of calculation of the efficiency of the hydraulic pump is the threshold value or more, in the hydraulic pump of unit interval
Efficiency reduction amount be more than second threshold in the case of, the processing unit exports the notification signal.
4. deck crane system as claimed in claim 1 or 2, which is characterized in that
It is also equipped with the current detecting part for the current value for detecting the main motor,
The voltage reference value of testing result and the main motor of the processing unit based on the current detecting part calculates institute
State the power of main motor.
5. deck crane system as claimed in claim 1 or 2, which is characterized in that
It is also equipped with the discharge pressure test section of the discharge pressure of the detection hydraulic pump,
The Flow datum value of testing result and the hydraulic pump of the processing unit based on the discharge pressure test section, calculates institute
State the power of hydraulic pump.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-044045 | 2017-03-08 | ||
| JP2017044045A JP6890023B2 (en) | 2017-03-08 | 2017-03-08 | Deck crane system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108569628A true CN108569628A (en) | 2018-09-25 |
| CN108569628B CN108569628B (en) | 2020-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810165745.1A Active CN108569628B (en) | 2017-03-08 | 2018-02-28 | Deck crane system |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6890023B2 (en) |
| CN (1) | CN108569628B (en) |
Citations (5)
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| US20070212230A1 (en) * | 2006-03-08 | 2007-09-13 | Itt Manufacturing Enterprises Inc. | Method for optimizing valve position and pump speed in a PID control valve system without the use of external signals |
| CN101178062A (en) * | 2007-10-26 | 2008-05-14 | 中国人民解放军空军工程大学 | Variable hydraulic pump pressure flow characteristics auto-testing method |
| CN101603559A (en) * | 2009-06-25 | 2009-12-16 | 三一重工股份有限公司 | Detect the method and apparatus and the engineering machinery of efficiency parameters of hydraulic system |
| CN104709277A (en) * | 2007-10-12 | 2015-06-17 | 欧达系统公司 | Hybrid vehicle drive system and method and idle reduction system and method |
| CN105143685A (en) * | 2013-04-11 | 2015-12-09 | 日立建机株式会社 | Apparatus for driving work machine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007186289A (en) * | 2006-01-12 | 2007-07-26 | Kobelco Cranes Co Ltd | Working machine diagnostic apparatus, diagnostic method, and working machine |
| JP5679529B2 (en) * | 2010-07-22 | 2015-03-04 | 日立住友重機械建機クレーン株式会社 | Maintenance information management device and work machine |
| JP2015131701A (en) * | 2014-01-10 | 2015-07-23 | 株式会社Ihi | Deck crane |
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2017
- 2017-03-08 JP JP2017044045A patent/JP6890023B2/en active Active
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2018
- 2018-02-28 CN CN201810165745.1A patent/CN108569628B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070212230A1 (en) * | 2006-03-08 | 2007-09-13 | Itt Manufacturing Enterprises Inc. | Method for optimizing valve position and pump speed in a PID control valve system without the use of external signals |
| CN104709277A (en) * | 2007-10-12 | 2015-06-17 | 欧达系统公司 | Hybrid vehicle drive system and method and idle reduction system and method |
| CN101178062A (en) * | 2007-10-26 | 2008-05-14 | 中国人民解放军空军工程大学 | Variable hydraulic pump pressure flow characteristics auto-testing method |
| CN101603559A (en) * | 2009-06-25 | 2009-12-16 | 三一重工股份有限公司 | Detect the method and apparatus and the engineering machinery of efficiency parameters of hydraulic system |
| CN105143685A (en) * | 2013-04-11 | 2015-12-09 | 日立建机株式会社 | Apparatus for driving work machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6890023B2 (en) | 2021-06-18 |
| CN108569628B (en) | 2020-02-21 |
| JP2018144992A (en) | 2018-09-20 |
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