CN109292627A - A kind of wisdom crane Effectiveness Evaluation System and working method - Google Patents
A kind of wisdom crane Effectiveness Evaluation System and working method Download PDFInfo
- Publication number
- CN109292627A CN109292627A CN201811290700.3A CN201811290700A CN109292627A CN 109292627 A CN109292627 A CN 109292627A CN 201811290700 A CN201811290700 A CN 201811290700A CN 109292627 A CN109292627 A CN 109292627A
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- Prior art keywords
- controller
- hydraulic
- pump
- crane
- sensor
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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
- B66C13/00—Other constructional features or details
- B66C13/16—Applications of indicating, registering, or weighing devices
Abstract
The invention discloses a kind of wisdom crane Effectiveness Evaluation System and working method, wisdom crane Effectiveness Evaluation System includes the display screen of controller and connection on the controller；It is connected with the second flow sensor for being mounted on hydraulic pump output terminal, the pressure sensor being mounted on hydraulic pump, the force snesor of installation on a steel cord and the fourth speed sensor for detecting rope speed on the controller；Working method is calculate by the power output and input simultaneously forming curves figure.Using the present invention, efficiency can be assessed.
Description
Technical field
The present invention relates to cranes, especially wisdom crane Effectiveness Evaluation System and working method.
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.
In existing crane, how the efficiency utilization rate of crane is a unknown number always, is unfavorable for operator in this way
Member knows the efficiency and history efficiency situation when work.
Summary of the invention
The object of the present invention is to provide a kind of wisdom crane Effectiveness Evaluation System and working methods, utilize the present invention, energy
Efficiency is assessed.
In order to achieve the above objectives, a kind of wisdom crane Effectiveness Evaluation System and working method, to use pressure sensor
Detect the hydraulic pressure P of hydraulic pumpPump, unit Mpa, and by hydraulic pressure PPumpIt is transferred in controller, is sensed with second flow
Device detects the flow Q of hydraulic pump output terminalPump, unit L/min, and by flow QPumpIt is transferred in controller, uses in the controller
Following formula calculates the actual power N, unit KW of hydraulic pump；
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 controllerIt hangs, unit KW；
PIt hangs=FV
In the controller, P is calculatedIt hangsUse time corresponding i value as Y-axis using the time as X-axis with the ratio i of N,
The curved line relation of time and i are formed in the controller, and the curve graph of time and i are shown by display screen.
The corresponding wisdom crane Effectiveness Evaluation System of above-mentioned wisdom crane Effectiveness Evaluation System working method includes control
The display screen of device processed and connection on the controller；It is connected with the second flow sensing for being mounted on hydraulic pump output terminal on the controller
Device, the pressure sensor being mounted on hydraulic pump, installation force snesor on a steel cord and for detecting rope speed
Fourth speed sensor.
Further, η take 0.85~~0.9.
Above-mentioned wisdom crane Effectiveness Evaluation System and working method, by obtaining the power of hydraulic motor and the function of lifting
Rate calculates efficiency, and forming curves figure can also check history efficiency number so that operator sees efficiency data in operation
According to being 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.Efficiency estimation method is the working method of wisdom crane Effectiveness Evaluation System of the invention.
Wisdom crane Effectiveness Evaluation System, the display screen including controller and connection on the controller；On the controller
It is connected with and is mounted on the second flow sensor of hydraulic pump output terminal, the pressure sensor being mounted on hydraulic pump, is mounted on steel
Force snesor in cord and the fourth speed sensor for detecting rope speed.
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；
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；
η1=0.96~0.97, η2=0.985~0.995, η3=0.97~0.98.
In the controller, V is used1It is compared with V, if rotation speed V deviation theory rotation speed V1Set tolerance
There is health problem in value, diagnosis transmission device；Wherein, rotation speed V deviation theory rotation speed V1Tolerance value be ± 1km/h
Belong to normally, otherwise unsoundness problem.
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 of ml/r, the △ P between hydraulic pump input terminal and output end
Difference, unit 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, diagnosis hydraulic pump have
Health problem；Actual flow QPumpDeviation theory flow Q2Tolerance value be that ± 1L/min belongs to normally, otherwise 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: ml/r, △ P are between hydraulic motor input terminal and output end
Pressure 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 diagnoses hydraulic motor
Unsoundness problem；Actual flow QHorseDeviation theory flow Q3Tolerance value be that ± 1L/min belongs to normally, otherwise unsoundness problem.
Efficiency estimation method are as follows: with the hydraulic pressure P of pressure sensor detection hydraulic pumpPump, unit Mpa, and will be 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
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 controllerIt hangs, unit KW；
PIt hangs=FV
In the controller, P is calculatedIt hangsUse time corresponding i value as Y-axis using the time as X-axis with the ratio i of N,
The curved line relation of time and i are formed 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 (3)
1. a kind of working method of wisdom crane Effectiveness Evaluation System, it is characterised in that: detect hydraulic pump with pressure sensor
Hydraulic pressure PPump, unit Mpa, and by hydraulic pressure PPumpIt is transferred 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, in the controller with following formula meter
Calculate the actual power N, unit KW of hydraulic pump；
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 Effectiveness Evaluation System according to claim 1, it is characterised in that: η takes 0.85
~~0.9.
3. a kind of wisdom crane efficiency of the working method based on wisdom crane Effectiveness Evaluation System described in claim 1
Assessment system, it is characterised in that: including the display screen of controller and connection on the controller；It is connected with and is mounted on the controller
The second flow sensor of hydraulic pump output terminal, the pressure sensor being mounted on hydraulic pump, the power of installation on a steel cord pass
Sensor and fourth speed sensor for detecting rope speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811290700.3A CN109292627B (en) | 2018-10-31 | 2018-10-31 | Intelligent crane efficiency evaluation system and working method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811290700.3A CN109292627B (en) | 2018-10-31 | 2018-10-31 | Intelligent crane efficiency evaluation system and working method |
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| Publication Number | Publication Date |
|---|---|
| CN109292627A true CN109292627A (en) | 2019-02-01 |
| CN109292627B CN109292627B (en) | 2020-03-27 |
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|---|---|---|---|
| CN201811290700.3A Active CN109292627B (en) | 2018-10-31 | 2018-10-31 | Intelligent crane efficiency evaluation system and working method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925091A (en) * | 2014-04-09 | 2014-07-16 | 三一汽车起重机械有限公司 | Dynamic power matching method, dynamic power matching system and engineering machinery |
| CN204057725U (en) * | 2014-09-02 | 2014-12-31 | 河南重工起重机集团有限公司 | A kind of hoisting crane power consumption checking system |
| CN107272572A (en) * | 2017-08-18 | 2017-10-20 | 大连美恒时代科技有限公司 | A kind of method that crane efficiency/efficiency is analyzed by MHCIMS |
-
2018
- 2018-10-31 CN CN201811290700.3A patent/CN109292627B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925091A (en) * | 2014-04-09 | 2014-07-16 | 三一汽车起重机械有限公司 | Dynamic power matching method, dynamic power matching system and engineering machinery |
| CN204057725U (en) * | 2014-09-02 | 2014-12-31 | 河南重工起重机集团有限公司 | A kind of hoisting crane power consumption checking system |
| CN107272572A (en) * | 2017-08-18 | 2017-10-20 | 大连美恒时代科技有限公司 | A kind of method that crane efficiency/efficiency is analyzed by MHCIMS |
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| CN109292627B (en) | 2020-03-27 |
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