CN109534169A - A kind of wisdom crane and working method - Google Patents
A kind of wisdom crane and working method Download PDFInfo
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- CN109534169A CN109534169A CN201811290699.4A CN201811290699A CN109534169A CN 109534169 A CN109534169 A CN 109534169A CN 201811290699 A CN201811290699 A CN 201811290699A CN 109534169 A CN109534169 A CN 109534169A
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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
- B66C13/00—Other constructional features or details
- B66C13/16—Applications of indicating, registering, or weighing devices
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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
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
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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
- B66C15/00—Safety gear
- B66C15/06—Arrangements or use of warning devices
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- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of wisdom crane and working method, wisdom crane includes pedestal, pivoting support, revolving platform, tripod, boom, winch, wirerope, fuel tank, hydraulic pump, hydraulic plumbing system and hydraulic motor and each sensor；Working method includes method for safety monitoring, Gernral Check-up method and efficiency estimation method.Using the present invention, it can accurately realize and the safety of crane is monitored, health monitoring can be carried out to crane power system, efficiency can be assessed.
Description
Technical field
The present invention relates to cranes, the especially working method of wisdom crane.
Background technique
Existing crane mainly includes pedestal, is mounted on the base pivoting support is mounted on returning on pivoting support
Turn platform, the tripod that is mounted on revolving platform, the boom being hinged on revolving platform, the winch being mounted on revolving platform
With the wirerope being connected on winch, further includes fuel tank, the hydraulic pump being connected to fuel tank, is connected to the hydraulic of hydraulic pump output terminal
Pipe-line system and the hydraulic motor for being connected to hydraulic plumbing system output, hydraulic motor drive winch work.And with intelligence
The development of system, crane also develop to intelligent direction again.
For traditional crane, early warning, alarm substantially are carried out to important failure, stopped in time convenient for operator
Machine, and other security performances are detected less.In addition, crane, that is, allows to work normally after a period of operation,
It needs often to overhaul crane, and the maintenance of blindness requires a great deal of time, while to the technology of service personnel
Performance requirement is higher, and is difficult to detect by where problem.Have in existing crane again, how is the efficiency utilization rate of crane
Always it is a unknown number, is unfavorable for efficiency and history efficiency situation when operator knows work in this way.
Summary of the invention
The object of the present invention is to provide a kind of wisdom crane and working methods, using the present invention, can accurately realize pair
The safety of crane is monitored, and can be carried out health monitoring to crane power system, can be assessed efficiency.
In order to achieve the above objectives, a kind of working method of wisdom crane, including method for safety monitoring, Gernral Check-up method
And efficiency estimation method；
Method for safety monitoring include wind direction monitoring, the monitoring of wind speed, the monitoring of hydraulic fluid pressure, hydraulic fluid temperature prison
It controls, the monitoring of the monitoring of hydraulic oil capacity and diesel oil capacity；
The monitoring of wind direction is to acquire wind direction input analog quantity by wind transducer to be then communicated in controller, controller
Wind direction actual value is obtained after carrying out calculation processing to wind direction input analog quantity, wind direction actual value, wind are then shown by display screen
To the calculation method of actual value are as follows:
y1=k1×(x1-4)
Wherein, y1For wind direction actual value, k1For the ratio of wind direction and wind transducer wind direction analog quantity, x1For wind direction sensing
The input analog quantity of device in above-mentioned calculation method, calculates y1When less than 0 °, it is shown as 0 °, calculates y1When greater than 360 °, show
It is shown as 360 °；
The monitoring of wind speed is to acquire wind speed input analog quantity by air velocity transducer to be then communicated in controller, controller
Wind speed actual value is obtained after carrying out calculation processing to wind speed input analog quantity, wind speed actual value, wind are then shown by display screen
The calculation method of fast actual value are as follows:
y2=k2×(x2-4)
Wherein, y2For wind speed actual value, k2For the ratio of wind speed and air velocity transducer wind speed simulation amount, x2For wind speed sensing
The input analog quantity of device in above-mentioned calculation method, calculates y2When less than 0 °, it is shown as 0 °；
The monitoring of hydraulic fluid pressure is to acquire hydraulic fluid pressure input analog quantity by pressure sensor to be then communicated to control
In device processed, controller obtains hydraulic fluid pressure actual value after carrying out calculation processing to hydraulic fluid pressure input analog quantity, then leads to
It crosses display screen and shows hydraulic fluid pressure actual value, the calculation method of hydraulic fluid pressure actual value are as follows:
y3=k3×(x3-4)
Wherein, y3For hydraulic fluid pressure actual value, k3For according to the calculated constant of different pressures transducer range, x3For
The input analog quantity of hydraulic oil pressure force snesor；
The monitoring of hydraulic fluid temperature is to acquire hydraulic fluid temperature input analog quantity by temperature sensor to be then communicated to control
In device processed, controller obtains hydraulic fluid temperature actual value after carrying out calculation processing to hydraulic fluid temperature input analog quantity, then leads to
It crosses display screen and shows hydraulic fluid temperature actual value, the calculation method of hydraulic fluid temperature actual value are as follows:
y4=k4×(x4-4)+a；y4For hydraulic fluid temperature actual value, x4Hydraulic fluid temperature inputs analog quantity, k4For according to not
The synthermal calculated constant of transducer range, a are temperature sensor Lower Range；
The monitoring of hydraulic oil capacity is to detect whether hydraulic oil by the liquid level sensor being mounted in hydraulic oil container
Then signal is shown by display screen；
The monitoring of diesel oil capacity is the signal that diesel oil is detected whether by the liquid level sensor being mounted in diesel fuel tanks, so
It is shown afterwards by display screen；
Gernral Check-up method includes the Gernral Check-up of hydraulic system transmission device；The Gernral Check-up of hydraulic system transmission device
Method are as follows: detect the flow Q of hydraulic system with first flow sensor, and flow signal is transferred in controller, with first
Velocity sensor detects the rotation speed V of winch drum, unit are as follows: km/h, and rotation speed V is transferred in controller, it uses
Second speed sensor detects the revolving speed n of hydraulic pump, and revolving speed n is input in controller, is detected with second flow sensor
The flow Q of hydraulic pump output terminalPump, unit L/min, and by flow QPumpIt is transferred in controller；It is examined with third speed sensor
Survey the revolving speed n of hydraulic motor2, and by revolving speed n2It is input in controller, passes through hydraulic motor with the detection of third flow sensor
Flow QHorse, and by flow QHorseIt is input in controller；Theoretical rotation speed V1, unit are calculated using following formula in the controller
For km/h；
1 η of V1=0.1882QD η, 2 η, 3/ ∑ q
Wherein, Q is the actual flow of hydraulic system, unit are as follows: L/min
D is the diameter of roller, unit are as follows: mm
The volumetric efficiency of η 1---- hydraulic pump, to 1=0.88~0.90 gear pump η,
Valve member volumetric efficiency in η 2---- system,
η 3--- hydraulic motor volumetric efficiency,
∑ q is the total displacement of hydraulic system, unit L/min；
In the controller, it is compared with V1 with V, if public affairs set by rotation speed V deviation theory rotation speed V1
There is health problem in difference, diagnosis transmission device；
The theoretical flow Q2 of hydraulic pump is calculated with following formula；
Wherein, Vg is the discharge capacity of hydraulic pump, unit are as follows: pressure of ml/r, the △ P between hydraulic pump input terminal and output end
Difference, unit are as follows: Mpa, n are revolving speed, and unit r/min, η v1 is the volumetric efficiency of hydraulic pump；
In the controller, do not haggled over Q2 and Q pump, if Q pump deviates tolerance value set by Q2, diagnose hydraulic pump
Unsoundness problem；
The theoretical flow Q3 of hydraulic pump is calculated with following formula；
Wherein, Vg is the discharge capacity of hydraulic motor, unit are as follows: ml/r, △ P are between hydraulic motor input terminal and output end
Pressure difference, unit are as follows: Mpa, n2 are revolving speed, and unit r/min, η v2 is the volumetric efficiency of hydraulic motor；
In the controller, do not haggled over Q3 and Q horse, if Q horse deviates tolerance value set by Q3, diagnose hydraulic horse
Up to unsoundness problem；
Efficiency estimation method are as follows: pumped with the hydraulic pressure P of pressure sensor detection hydraulic pump, unit Mpa, and will be hydraulic
Pressure P pump is transferred in controller, is pumped with the flow Q that second flow sensor detects hydraulic pump output terminal, unit L/min,
And flow Q pump is transferred in controller, the actual power N, unit KW of hydraulic pump are calculated with following formula in the controller；
N=PQ/60 η
Wherein, η is the gross efficiency of hydraulic pump；
Lifting cargo or pulling force F, the unit KN of people are detected with force snesor, and pulling force F is input in controller, is used
Speed V, the unit Km/h for the wirerope that the detection of fourth speed sensor is connect with cargo or people, and speed V is input to control
In device processed, lifting power P is calculated with following formula in the controller and is hung, unit KW；
P hangs=FV
In the controller, calculate the ratio i that P is hung with N uses time corresponding i value as Y using the time as X-axis
Axis forms the curved line relation of time and i in the controller, and the curve graph of time and i are shown by display screen.
The corresponding wisdom crane of above-mentioned wisdom crane working method includes pedestal, the revolution branch being mounted on the base
The revolving platform that hold, is mounted on pivoting support, is hinged on hanging on revolving platform at the tripod being mounted on revolving platform
Arm, the winch being mounted on revolving platform and the wirerope being connected on winch, further include fuel tank, be connected to fuel tank it is hydraulic
Pump, be connected to the hydraulic plumbing system of hydraulic pump output terminal and be connected to the hydraulic motor of hydraulic plumbing system output, hydraulic horse
Up to driving winch work；It further include the display screen of controller and connection on the controller；It is connected with to be mounted on the controller and hang
Wind transducer on arm, the air velocity transducer being mounted on boom, for detecting hydraulic fluid pressure in hydraulic plumbing system
Pressure sensor, the temperature sensor being mounted on hydraulic pump and hydraulic motor, the liquid level sensor being mounted in hydraulic oil container,
The liquid level sensor that is mounted in diesel fuel tanks, the first flow sensor being mounted in hydraulic plumbing system are mounted on winch rolling
First Speed sensor on cylinder, is mounted on the second of hydraulic pump output terminal at the second speed sensor being mounted on hydraulic pump
Flow sensor, the third speed sensor being mounted on hydraulic motor, the third flow sensor being mounted on hydraulic motor,
Pressure sensor, the installation force snesor on a steel cord and for detecting rope speed the 4th being mounted on hydraulic pump
Velocity sensor.
Further, k1=360 °/16mA=22.5, k2=70m/s/16mA=4.375, k3=pressure sensor is maximum
Range MPa/16mA,
Further, unnatural wind speed state is monitored to continue to alarm when 3s by anemometer.
Further, when monitoring that hydraulic fluid temperature is greater than 65 DEG C, pass through oil temperature precaution device early warning.
Further, 3=0.97~0.98 η 1=0.96~0.97, η 2=0.985~0.995, η.
Further, the tolerance value of rotation speed V deviation theory rotation speed V1 is that ± 1km/h belongs to normally.
Further, it is that ± 1L/min belongs to normally that actual flow Q, which pumps the tolerance value of deviation theory flow Q2,；Actual flow
The tolerance value of Q horse deviation theory flow Q3 is that ± 1L/min belongs to normally.
Further, η take 0.85~~0.9.
Above-mentioned wisdom crane and working method, using the wind transducer being mounted on boom, are mounted on boom
Air velocity transducer, for detecting the pressure sensor of hydraulic fluid pressure in hydraulic plumbing system, being mounted on hydraulic pump and hydraulic horse
Up to upper temperature sensor, the liquid level sensor being mounted in hydraulic oil container, the liquid level sensor being mounted in diesel fuel tanks detection
It is accurately calculated to corresponding signal, and to signal, obtains corresponding data, which is shown on display screen, and right
Signal more than setting range value is alarmed, in this way, the precision of processing is high, can accurately play the role of security warning.
During Gernral Check-up, by obtaining signal, and signal is calculated using calculation method of the invention, from
And hydraulic pump, hydraulic motor and transmission device are diagnosed, in the present invention, transmission device is to be connected to hydraulic motor output
The speed changer at end and the winch being connected on speed changer.
By obtaining the power of hydraulic motor and the power calculation efficiency of lifting, and forming curves figure, so that operator
Efficiency data are seen in operation, can also be checked history efficiency data, be assessed convenient for the efficiency to the crane.
Detailed description of the invention
Fig. 1 is the schematic diagram of wisdom crane.
Specific embodiment
The present invention will be described in further detail with reference to the accompanying drawings and detailed description.
As shown in Figure 1, wisdom crane includes pedestal 1, the pivoting support being mounted on the base 2, is mounted on pivoting support
On revolving platform 3, be mounted on revolving platform tripod 4, be hinged on revolving platform boom 5, to be mounted on revolution flat
Winch on platform and the wirerope being connected on winch further include fuel tank, the hydraulic pump being connected to fuel tank, to be connected to hydraulic pump defeated
The hydraulic plumbing system of outlet and the hydraulic motor for being connected to hydraulic plumbing system output, hydraulic motor drive winch work；Its
It is characterized in that: further including the display screen of controller and connection on the controller；It is connected with and is mounted on boom on the controller
Wind transducer, the air velocity transducer being mounted on boom, the pressure for detecting hydraulic fluid pressure in hydraulic plumbing system pass
Sensor, the liquid level sensor being mounted in hydraulic oil container, is mounted on the temperature sensor being mounted on hydraulic pump and hydraulic motor
Liquid level sensor in diesel fuel tanks, is mounted on winch drum the first flow sensor being mounted in hydraulic plumbing system
First Speed sensor, the second speed sensor being mounted on hydraulic pump, the second flow biography for being mounted on hydraulic pump output terminal
Sensor, the third flow sensor being mounted on hydraulic motor, is mounted on the third speed sensor being mounted on hydraulic motor
Pressure sensor, the force snesor of installation on a steel cord on hydraulic pump and the fourth speed for detecting rope speed pass
Sensor.
The working method of above-mentioned Intelligent crane be include method for safety monitoring, Gernral Check-up method and measures of effectiveness side
Method.
Method for safety monitoring include wind direction monitoring, the monitoring of wind speed, the monitoring of hydraulic fluid pressure, hydraulic fluid temperature prison
It controls, the monitoring of the monitoring of hydraulic oil capacity and diesel oil capacity.
The monitoring of wind direction is to acquire wind direction input analog quantity by wind transducer to be then communicated in controller, controller
Wind direction actual value is obtained after carrying out calculation processing to wind direction input analog quantity, wind direction actual value, wind are then shown by display screen
To the calculation method of actual value are as follows:
y1=k1×(x1-4)
Wherein, y1For wind direction actual value, k1For the ratio of wind direction and wind transducer wind direction analog quantity, k1=360 °/16mA
=22.5, x1For the input analog quantity of wind transducer, in above-mentioned calculation method, y is calculated1When less than 0 °, it is shown as 0 °, meter
Calculate y1When greater than 360 °, it is shown as 360 °.
The monitoring of wind speed is to acquire wind speed input analog quantity by air velocity transducer to be then communicated in controller, controller
Wind speed actual value is obtained after carrying out calculation processing to wind speed input analog quantity, wind speed actual value, wind are then shown by display screen
The calculation method of fast actual value are as follows:
y2=k2×(x2-4)
Wherein, y2For wind speed actual value, k2For the ratio of wind speed and air velocity transducer wind speed simulation amount, k2=70m/s/
16mA=4.375, x2For the input analog quantity of air velocity transducer, in above-mentioned calculation method, y is calculated2When less than 0 °, it is shown as
0°.Unnatural wind speed state is monitored to continue to alarm when 3s by anemometer.
The monitoring of hydraulic fluid pressure is to acquire hydraulic fluid pressure input analog quantity by pressure sensor to be then communicated to control
In device processed, controller obtains hydraulic fluid pressure actual value after carrying out calculation processing to hydraulic fluid pressure input analog quantity, then leads to
It crosses display screen and shows hydraulic fluid pressure actual value, the calculation method of hydraulic fluid pressure actual value are as follows:
y3=k3×(x3-4)
Wherein, y3For hydraulic fluid pressure actual value, k3For according to the calculated constant of different pressures transducer range, k3=
Pressure sensor maximum range MPa/16mA, x3For the input analog quantity of hydraulic oil pressure force snesor.
The monitoring of hydraulic fluid temperature is to acquire hydraulic fluid temperature input analog quantity by temperature sensor to be then communicated to control
In device processed, controller obtains hydraulic fluid temperature actual value after carrying out calculation processing to hydraulic fluid temperature input analog quantity, then leads to
It crosses display screen and shows hydraulic fluid temperature actual value, the calculation method of hydraulic fluid temperature actual value are as follows:
y4=k4×(x4-4)+a；y4For hydraulic fluid temperature actual value, x4Hydraulic fluid temperature inputs analog quantity, k4For according to not
The synthermal calculated constant of transducer range, a are temperature sensor Lower Range.When monitor hydraulic fluid temperature be greater than 65 DEG C
When, pass through oil temperature precaution device early warning.
The monitoring of hydraulic oil capacity is to detect whether hydraulic oil by the liquid level sensor being mounted in hydraulic oil container
Then signal is shown by display screen.
The monitoring of diesel oil capacity is the signal that diesel oil is detected whether by the liquid level sensor being mounted in diesel fuel tanks, so
It is shown afterwards by display screen.
Gernral Check-up method includes the Gernral Check-up of hydraulic system transmission device；The Gernral Check-up of hydraulic system transmission device
Method are as follows: detect the flow Q of hydraulic system with first flow sensor, and flow signal is transferred in controller, with first
Velocity sensor detects the rotation speed V of winch drum, unit are as follows: km/h, and rotation speed V is transferred in controller, it uses
Second speed sensor detects the revolving speed n of hydraulic pump, and revolving speed n is input in controller, is detected with second flow sensor
The flow Q of hydraulic pump output terminalPump, unit L/min, and by flow QPumpIt is transferred in controller；It is examined with third speed sensor
Survey the revolving speed n of hydraulic motor2, and by revolving speed n2It is input in controller, passes through hydraulic motor with the detection of third flow sensor
Flow QHorse, and by flow QHorseIt is input in controller；Theoretical rotation speed V is calculated using following formula in the controller1, unit
For km/h；
1 η of V1=0.1882QD η, 2 η, 3/ ∑ q
Wherein, Q is the actual flow of hydraulic system, unit are as follows: L/min
D is the diameter of roller, unit are as follows: mm
The volumetric efficiency of η 1---- hydraulic pump, to 1=0.88~0.90 gear pump η,
Valve member volumetric efficiency in η 2---- system,
η 3--- hydraulic motor volumetric efficiency,
∑ q is the total displacement of hydraulic system, unit L/min；
3=0.97~0.98 η 1=0.96~0.97, η 2=0.985~0.995, η.
In the controller, it is compared with V1 with V, if public affairs set by rotation speed V deviation theory rotation speed V1
There is health problem in difference, diagnosis transmission device；Wherein, the tolerance value of rotation speed V deviation theory rotation speed V1 be ±
1km/h belongs to normally, otherwise unsoundness problem.
The theoretical flow Q2 of hydraulic pump is calculated with following formula；
Wherein, Vg is the discharge capacity of hydraulic pump, unit are as follows: pressure of ml/r, the △ P between hydraulic pump input terminal and output end
Difference, unit are as follows: Mpa, n are revolving speed, and unit r/min, η v1 is the volumetric efficiency of hydraulic pump；
In the controller, do not haggled over Q2 and Q pump, if Q pump deviates tolerance value set by Q2, diagnose hydraulic pump
Unsoundness problem；The tolerance value of actual flow Q pump deviation theory flow Q2 is that ± 1L/min belongs to normally, and otherwise unsoundness is asked
Topic.
The theoretical flow Q3 of hydraulic pump is calculated with following formula；
Wherein, Vg is the discharge capacity of hydraulic motor, unit are as follows: ml/r, △ P are between hydraulic motor input terminal and output end
Pressure difference, unit are as follows: Mpa, n2 are revolving speed, and unit r/min, η v2 is the volumetric efficiency of hydraulic motor；
In the controller, do not haggled over Q3 and Q horse, if Q horse deviates tolerance value set by Q3, diagnose hydraulic horse
Up to unsoundness problem；The tolerance value of actual flow Q horse deviation theory flow Q3 is that ± 1L/min belongs to normally, and otherwise unsoundness is asked
Topic.
Efficiency estimation method are as follows: pumped with the hydraulic pressure P of pressure sensor detection hydraulic pump, unit Mpa, and will be hydraulic
Pressure P pump is transferred in controller, and the flow Q of hydraulic pump output terminal is detected with second flow sensorPump, unit L/min, and
By flow QPumpIt is transferred in controller, calculates the actual power N, unit KW of hydraulic pump with following formula in the controller；
N=PQ/60 η
Wherein, η is the gross efficiency of hydraulic pump；η takes 0.85~~0.9；
Lifting cargo or pulling force F, the unit KN of people are detected with force snesor, and pulling force F is input in controller, is used
Speed V, the unit Km/h for the wirerope that the detection of fourth speed sensor is connect with cargo or people, and speed V is input to control
In device processed, lifting power P is calculated with following formula in the controller and is hung, unit KW；
P hangs=FV
In the controller, calculate the ratio i that P is hung with N uses time corresponding i value as Y using the time as X-axis
Axis forms the curved line relation of time and i in the controller, and the curve graph of time and i are shown by display screen.
In the present invention, can sensor connect with controller, controller is connect with display screen.Transmission device is to be connected to liquid
The speed changer of pressure motor output end and the winch being connected on speed changer.Hydraulic system, that is, hydraulic plumbing system.
Above-mentioned wisdom crane and working method, using the wind transducer being mounted on boom, are mounted on boom
Air velocity transducer, for detecting the pressure sensor of hydraulic fluid pressure in hydraulic plumbing system, being mounted on hydraulic pump and hydraulic horse
Up to upper temperature sensor, the liquid level sensor being mounted in hydraulic oil container, the liquid level sensor being mounted in diesel fuel tanks detection
It is accurately calculated to corresponding signal, and to signal, obtains corresponding data, which is shown on display screen, and right
Signal more than setting range value is alarmed, in this way, the precision of processing is high, can accurately play the role of security warning.
During Gernral Check-up, by obtaining signal, and signal is calculated using calculation method of the invention, from
And hydraulic pump, hydraulic motor and transmission device are diagnosed, in the present invention, transmission device is to be connected to hydraulic motor output
The speed changer at end and the winch being connected on speed changer.
By obtaining the power of hydraulic motor and the power calculation efficiency of lifting, and forming curves figure, so that operator
Efficiency data are seen in operation, can also be checked history efficiency data, be assessed convenient for the efficiency to the crane.
Claims (9)
1. a kind of working method of wisdom crane, it is characterised in that: including method for safety monitoring, Gernral Check-up method and efficiency
Appraisal procedure；
Method for safety monitoring includes wind direction monitoring, the monitoring of wind speed, the monitoring of hydraulic fluid pressure, the monitoring of hydraulic fluid temperature, liquid
The monitoring of pressure oil capacity and the monitoring of diesel oil capacity；
The monitoring of wind direction is to acquire wind direction input analog quantity by wind transducer to be then communicated in controller, and controller is to wind
Wind direction actual value is obtained after carrying out calculation processing to input analog quantity, wind direction actual value is then shown by display screen, wind direction is real
The calculation method of actual value are as follows:
y1=k1×(x1-4)
Wherein, y1For wind direction actual value, k1For the ratio of wind direction and wind transducer wind direction analog quantity, x1For wind transducer
Analog quantity is inputted, in above-mentioned calculation method, calculates y1When less than 0 °, it is shown as 0 °, calculates y1When greater than 360 °, it is shown as
360°；
The monitoring of wind speed is to acquire wind speed input analog quantity by air velocity transducer to be then communicated in controller, and controller is to wind
Speed input analog quantity obtains wind speed actual value after carrying out calculation processing, then shows wind speed actual value by display screen, and wind speed is real
The calculation method of actual value are as follows:
y2=k2×(x2-4)
Wherein, y2For wind speed actual value, k2For the ratio of wind speed and air velocity transducer wind speed simulation amount, x2For air velocity transducer
Analog quantity is inputted, in above-mentioned calculation method, calculates y2When less than 0 °, it is shown as 0 °；
The monitoring of hydraulic fluid pressure is to acquire hydraulic fluid pressure input analog quantity by pressure sensor to be then communicated to controller
In, controller obtains hydraulic fluid pressure actual value after carrying out calculation processing to hydraulic fluid pressure input analog quantity, then by aobvious
Display screen shows hydraulic fluid pressure actual value, the calculation method of hydraulic fluid pressure actual value are as follows:
y3=k3×(x3-4)
Wherein, y3For hydraulic fluid pressure actual value, k3For according to the calculated constant of different pressures transducer range, x3It is hydraulic
The input analog quantity of oil pressure force snesor；
The monitoring of hydraulic fluid temperature is to acquire hydraulic fluid temperature input analog quantity by temperature sensor to be then communicated to controller
In, controller obtains hydraulic fluid temperature actual value after carrying out calculation processing to hydraulic fluid temperature input analog quantity, then by aobvious
Display screen shows hydraulic fluid temperature actual value, the calculation method of hydraulic fluid temperature actual value are as follows:
y4=k4×(x4-4)+a；y4For hydraulic fluid temperature actual value, x4Hydraulic fluid temperature inputs analog quantity, k4For according to not equality of temperature
The calculated constant of transducer range is spent, a is temperature sensor Lower Range；
The monitoring of hydraulic oil capacity is the signal that hydraulic oil is detected whether by the liquid level sensor being mounted in hydraulic oil container,
Then it is shown by display screen；
The monitoring of diesel oil capacity is the signal that diesel oil is detected whether by the liquid level sensor being mounted in diesel fuel tanks, is then led to
Display screen is crossed to show；
Gernral Check-up method includes the Gernral Check-up of hydraulic system transmission device；The Gernral Check-up method of hydraulic system transmission device
Are as follows: the flow Q of hydraulic system is detected with first flow sensor, and flow signal is transferred in controller, uses First Speed
Sensor detects the rotation speed V of winch drum, unit are as follows: km/h, and rotation speed V is transferred in controller, with second
Velocity sensor detects the revolving speed n of hydraulic pump, and revolving speed n is input in controller, is detected with second flow sensor hydraulic
The flow Q of pump output terminalPump, unit L/min, and by flow QPumpIt is transferred in controller；Liquid is detected with third speed sensor
The revolving speed n of pressure motor2, and by revolving speed n2It is input in controller, the flow for passing through hydraulic motor with the detection of third flow sensor
QHorse, and by flow QHorseIt is input in controller；Theoretical rotation speed V is calculated using following formula in the controller1, unit is
km/h；
V1=0.1882QD η1·η2·η3/∑q
Wherein, Q is the actual flow of hydraulic system, unit are as follows: L/min
D is the diameter of roller, unit are as follows: mm
η1The volumetric efficiency of ----hydraulic pump, to gear pump η1=0.88~0.90,
η2Valve member volumetric efficiency in ----system,
η3--- hydraulic motor volumetric efficiency,
∑ q is the total displacement of hydraulic system, unit L/min；
In the controller, V is used1It is compared with V, if rotation speed V deviation theory rotation speed V1Set tolerance value,
There is health problem in diagnosis transmission device；
The theoretical flow Q of hydraulic pump is calculated with following formula2；
Wherein, Vg is the discharge capacity of hydraulic pump, unit are as follows: pressure difference of ml/r, the △ P between hydraulic pump input terminal and output end, it is single
Position are as follows: Mpa, n are revolving speed, unit r/min, ηv1For the volumetric efficiency of hydraulic pump；
In the controller, Q is used2With QPumpDo not haggled over, if QPumpDeviate Q2Set tolerance value diagnoses hydraulic pump unsoundness
Problem；
The theoretical flow Q of hydraulic pump is calculated with following formula3；
Wherein, Vg is the discharge capacity of hydraulic motor, unit are as follows: pressure of ml/r, the △ P between hydraulic motor input terminal and output end
Difference, unit are as follows: Mpa, n2For revolving speed, unit r/min, ηv2For the volumetric efficiency of hydraulic motor；
In the controller, Q is used3With QHorseDo not haggled over, if QHorseDeviate Q3Set tolerance value, diagnosis hydraulic motor have strong
Kang Wenti；
Efficiency estimation method are as follows: with the hydraulic pressure P of pressure sensor detection hydraulic pumpPump, unit Mpa, and by hydraulic pressure
PPumpIt is transferred in controller, the flow Q of hydraulic pump output terminal is detected with second flow sensorPump, unit L/min, and will stream
Measure QPumpIt is transferred in controller, calculates the actual power N, unit KW of hydraulic pump with following formula in the controller；
N=PQ/60 η
Wherein, η is the gross efficiency of hydraulic pump；
Lifting cargo or pulling force F, the unit KN of people are detected with force snesor, and pulling force F is input in controller, with the 4th
Speed V, the unit Km/h for the wirerope that velocity sensor detection is connect with cargo or people, and speed V is input to controller
In, lifting power P is calculated with following formula in the controllerIt hangs, unit KW；
PIt hangs=FV
In the controller, P is calculatedIt hangsIt uses time corresponding i value as Y-axis using the time as X-axis with the ratio i of N, is controlling
The curved line relation of time and i are formed in device processed, and the curve graph of time and i are shown by display screen.
2. the working method of wisdom crane according to claim 1, it is characterised in that: k1=360 °/16mA=22.5,
k2=70m/s/16mA=4.375, k3=pressure sensor maximum range MPa/16mA,
3. the working method of wisdom crane according to claim 1, it is characterised in that: monitor unnatural wind speed state and continue
It is alarmed when 3s by anemometer.
4. the working method of wisdom crane according to claim 1, it is characterised in that: when monitoring that hydraulic fluid temperature is big
When 65 DEG C, pass through oil temperature precaution device early warning.
5. the working method of wisdom crane according to claim 1, it is characterised in that: η1=0.96~0.97, η2=
0.985~0.995, η3=0.97~0.98.
6. the working method of wisdom crane according to claim 1, it is characterised in that: the rotation of rotation speed V deviation theory
Rotary speed V1Tolerance value be ± 1km/h belong to normally.
7. the working method of wisdom crane according to claim 1, it is characterised in that: actual flow QPumpDeviation theory stream
Measure Q2Tolerance value be ± 1L/min belong to normally；Actual flow QHorseDeviation theory flow Q3Tolerance value be ± 1L/min belong to
Normally.
8. the working method of wisdom crane according to claim 1, it is characterised in that: η takes 0.85~~0.9.
9. a kind of wisdom crane, flat including pedestal, the pivoting support being mounted on the base, the revolution being mounted on pivoting support
Platform, the tripod being mounted on revolving platform, the boom being hinged on revolving platform, the winch being mounted on revolving platform and company
The wirerope on winch is connect, further includes fuel tank, the hydraulic pump being connected to fuel tank, the fluid pressure line for being connected to hydraulic pump output terminal
System and the hydraulic motor for being connected to hydraulic plumbing system output, hydraulic motor drive winch work；It is characterized by also including
The display screen of controller and connection on the controller；It is connected with the wind transducer being mounted on boom, installation on the controller
Air velocity transducer on boom, for detect the pressure sensor of hydraulic fluid pressure in hydraulic plumbing system, be mounted on it is hydraulic
Pump and the temperature sensor on hydraulic motor, the liquid level sensor being mounted in hydraulic oil container, the liquid level that is mounted in diesel fuel tanks
Sensor, the first flow sensor being mounted in hydraulic plumbing system, the First Speed sensor being mounted on winch drum,
The second speed sensor that is mounted on hydraulic pump, the second flow sensor for being mounted on hydraulic pump output terminal, be mounted on it is hydraulic
Third speed sensor on motor, the third flow sensor being mounted on hydraulic motor, the pressure being mounted on hydraulic pump
Sensor, the force snesor of installation on a steel cord and the fourth speed sensor for detecting rope speed.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110057855A (en) * | 2009-11-25 | 2011-06-01 | 주정환 | A crane safe apparatus |
| CN105967066A (en) * | 2016-07-13 | 2016-09-28 | 广东省自动化研究所 | Early-warning controlling system for offshore platform crane |
| CN207419427U (en) * | 2017-11-17 | 2018-05-29 | 佛山市榕岸海洋工程装备有限公司 | A kind of ocean platform with cross-platform work crane |
| CN108423549A (en) * | 2017-11-30 | 2018-08-21 | 中船华南船舶机械有限公司 | A kind of crane hydraulic system and working method |
| CN108533572A (en) * | 2018-03-29 | 2018-09-14 | 上海交通大学 | A kind of crane hydraulic system health evaluating method and system |
-
2018
- 2018-10-31 CN CN201811290699.4A patent/CN109534169B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110057855A (en) * | 2009-11-25 | 2011-06-01 | 주정환 | A crane safe apparatus |
| CN105967066A (en) * | 2016-07-13 | 2016-09-28 | 广东省自动化研究所 | Early-warning controlling system for offshore platform crane |
| CN207419427U (en) * | 2017-11-17 | 2018-05-29 | 佛山市榕岸海洋工程装备有限公司 | A kind of ocean platform with cross-platform work crane |
| CN108423549A (en) * | 2017-11-30 | 2018-08-21 | 中船华南船舶机械有限公司 | A kind of crane hydraulic system and working method |
| CN108533572A (en) * | 2018-03-29 | 2018-09-14 | 上海交通大学 | A kind of crane hydraulic system health evaluating method and system |
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