CN203699702U - Container front lifting crane and control system of lifting appliance buffer oil cylinder of container front lifting crane - Google Patents

Container front lifting crane and control system of lifting appliance buffer oil cylinder of container front lifting crane Download PDF

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Publication number
CN203699702U
CN203699702U CN201320524906.4U CN201320524906U CN203699702U CN 203699702 U CN203699702 U CN 203699702U CN 201320524906 U CN201320524906 U CN 201320524906U CN 203699702 U CN203699702 U CN 203699702U
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CN
China
Prior art keywords
suspender
cushion cylinder
control valve
proportional control
crane
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.)
Withdrawn - After Issue
Application number
CN201320524906.4U
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Chinese (zh)
Inventor
张付义
张盛楠
郭志臣
张德荣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xuzhou Heavy Machinery Co Ltd
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Xuzhou Heavy Machinery Co Ltd
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Filing date
Publication date
Application filed by Xuzhou Heavy Machinery Co Ltd filed Critical Xuzhou Heavy Machinery Co Ltd
Priority to CN201320524906.4U priority Critical patent/CN203699702U/en
Application granted granted Critical
Publication of CN203699702U publication Critical patent/CN203699702U/en
Anticipated expiration legal-status Critical
Withdrawn - After Issue legal-status Critical Current

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Abstract

The utility model discloses a container front lifting crane and a control system of a lifting appliance buffer oil cylinder of the container front lifting crane. A hydraulic subsystem comprises an electric-hydraulic proportional control valve arranged in an oil inlet channel, wherein pressure oil enters an oil inlet of the lifting appliance buffer oil cylinder through the electric-hydraulic proportional control valve; a control device is electrically connected with the electric-hydraulic proportional control valve and can be used for adjusting current input by the electric-hydraulic proportional control valve so as to control a piston rod of the lifting appliance buffer oil cylinder to stretch out or contract back. According to the control system and the crane, the angle of inclination of a lifting appliance can be controlled by controlling the current input by the electric-hydraulic proportional control valve, so that the angle of inclination of the lifting appliance can be controlled, the judgment of an operator on box alignment can be improved, the box alignment can be conveniently and smoothly completed, and the lifting transfer efficiency is improved.

Description

Control system and the hoisting crane of face-up transporting hoist of container crane hanger cushion cylinder
Technical field
The utility model relates to technical field of engineering machinery, relates in particular to a kind of control system and hoisting crane of face-up transporting hoist of container crane hanger cushion cylinder.
Background technology
Face-up transporting hoist of container hoisting crane (hereinafter to be referred as front handling mobile crane) is the special-purpose machinery for container handling, pile and horizontal transport, is widely used in lifting and the transhipment of the weight in the places such as harbour, harbour, warehouse.Suspender cushion cylinder is that the suspender cushion cylinder on front handling mobile crane is arranged on suspender, when to case, can make suspender inclination certain angle, thereby be convenient to case, meanwhile, in handling process, can cushion the swing of suspender, makes the steady handling of freight container.
Flourish along with container industry, container front crane with its maneuverability, occupied ground is little, stacking tier is high, is suitable for across features such as casing workings, in container operation, obtain applying more and more widely.Be used in especially middle haven, the handling of the freight container of railway transhipment station and highway transhipment station, also can be used as accessory equipment at large container wharf.The suspender of front handling mobile crane can regulate according to the size of freight container, and can be rotated, so that by narrow passage.For the ease of to case, suspender not only can left and right sidesway, suspender cushion cylinder is installed on suspender simultaneously, and suspender cushion cylinder can make suspender have certain angle of inclination, thereby makes operator smoothly to case.In motion process, suspender cushion cylinder has buffer action to the swing of suspender simultaneously.The mounting means difference of suspender cushion cylinder, thereby corresponding different mode.What the installation of suspender cushion cylinder was common is divided into three kinds of forms, and as shown in Figure 1A, Figure 1B, Fig. 1 C, one end of jib 1 is fixedly connected with the upper end of arm head, and suspender 3 is hinged with the lower end of arm head.Suspender cushion cylinder 3 is hinged with jib 1 and suspender 3 respectively.Above three kinds of mount schemes have application on the suspender of front handling mobile crane.
In real work, because freight container has four twistlocks, during to case, four lock cores on suspender need to be snapped in four keyholes on freight container, by mechanism operation, the freight container of can slinging after locking, realizes smooth operation.In the time of work, four keyholes that align smoothly, need very high operation skill, have therefore brought very large difficulty to operator.If make suspender inclination certain angle, first alignment two twistlocks wherein, two other twistlock is just alignment smoothly also, thereby slings whole freight container.By factual survey and application, after maintenance suspender, twistlock is more lower slightly than front twistlock, very great for the alignment freight container meaning of operator's safety and precise.
The installation of suspender cushion cylinder, can realize the initial tilt of suspender angle.By controlling the pressure of suspender cushion cylinder, in the time of lifting, oil cylinder can stretch out certain distance, and the change of the relative position by three hinges, realizes the inclination of suspender.The control system of suspender cushion cylinder has following shortcoming at present: as shown in Fig. 1 D, suspender tilt angle alpha is not controlled.In the time that front handling mobile crane is prepared handling, from the path of motion of suspender, along with the variation of luffing range of cantilever support angle, the arm of force L of suspender cushion cylinder changes, therefore want to keep the angle of inclination of suspender, suspender cushion cylinder thrust must be followed change, and the pressure of input suspender cushion cylinder is certain, the thrust producing is also just constant, along with the variation of luffing range of cantilever support angle, the tilt angle alpha of suspender also can change, and α changes to when very little, will perturbation operation person to case operation, affect operating efficiency.Therefore, need a kind of control system of novel suspender cushion cylinder.
Utility model content
In view of this, a technical matters to be solved in the utility model is to provide a kind of control system of face-up transporting hoist of container crane hanger cushion cylinder, realizes the control to suspender angle of inclination by the size of controlling electrohydraulic proportional control valve received current.
A control system for face-up transporting hoist of container crane hanger cushion cylinder, comprising: hydraulic subsystem and control setup; Described hydraulic subsystem comprises: be arranged on the electrohydraulic proportional control valve in oil-feed path; Described pressure oil enters the oil inlet of suspender cushion cylinder by described electrohydraulic proportional control valve; Described control setup is electrically connected with described electrohydraulic proportional control valve; Described control setup is by controlling the received current of described electrohydraulic proportional control valve, and the piston rod of controlling described suspender cushion cylinder stretches out or shrinks; Wherein, the two ends of described suspender cushion cylinder are hinged with jib and suspender respectively, and one end of described jib is fixedly connected with the upper end of arm head, and the lower end of described suspender and described arm head is hinged.
According to an embodiment of the present utility model, further, also comprise the angular transducer that detects jib angle of inclination; Described control setup is electrically connected with described angular transducer.
According to an embodiment of the present utility model, further, described control setup is connected by CAN bus with described electrohydraulic proportional control valve and described angular transducer.
According to an embodiment of the present utility model, further, described hydraulic subsystem also comprises: be arranged on the safety valve in way to cycle oil; Pressure oil in described suspender cushion cylinder returns to fuel tank by return opening and the described safety valve of described suspender cushion cylinder.
According to an embodiment of the present utility model, further, described hydraulic subsystem also comprises: overload protection loop; Wherein, the one end in described overload protection loop is connected with described oil-feed path, and the other end is connected with described fuel tank, in described overload protection loop, by pass valve is set.
According to an embodiment of the present utility model, further, described hydraulic subsystem also comprises: hydraulic planger pump.
According to an embodiment of the present utility model, further, at the oil inlet place of suspender cushion cylinder, filter is set.
According to an embodiment of the present utility model, further, also comprise telltale; Described telltale is electrically connected with described control setup.
A kind of face-up transporting hoist of container hoisting crane, comprises the suspender cushion cylinder control system of face-up transporting hoist of container hoisting crane as above.
Control system and the hoisting crane of face-up transporting hoist of container crane hanger cushion cylinder of the present utility model, realize the control to suspender angle of inclination by the size of controlling electrohydraulic proportional control valve received current, can make suspender angle of inclination controlled, improve operator case is judged, can facilitate and complete smoothly case, improve handling transition efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Figure 1A to 1D is the schematic diagram of face-up transporting hoist of container crane hanger cushion cylinder of the prior art; Wherein, Figure 1A, 1B, 1C are 3 kinds of different deployment schematic diagrams of suspender cushion cylinder, and Fig. 1 D is the inclination schematic diagram of suspender cushion cylinder in lifting;
Fig. 2 is an embodiment schematic diagram of the control system of face-up transporting hoist of container crane hanger cushion cylinder of the present utility model;
Fig. 3 A and 3B use the suspender cushion cylinder of control system of the present utility model inclination schematic diagram in lifting.
The specific embodiment
With reference to the accompanying drawings the utility model is described more fully, exemplary embodiment of the present utility model is wherein described.Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.Below in conjunction with figure and embodiment, the technical solution of the utility model is carried out to many-sided description.
As shown in Figure 2, the control system of face-up transporting hoist of container crane hanger cushion cylinder comprises: hydraulic subsystem and control setup 12.Hydraulic subsystem comprises: be arranged on the electrohydraulic proportional control valve 11 in oil-feed path.Pressure oil enters the oil inlet of suspender cushion cylinder 10 by electrohydraulic proportional control valve 11.
The two ends of suspender cushion cylinder 10 are hinged with jib and suspender respectively, and one end of jib is fixedly connected with the upper end of arm head, and the lower end of suspender and arm head is hinged.Control setup 12 is electrically connected with electrohydraulic proportional control valve 11.Control setup 12 is adjusted the size of electrohydraulic proportional control valve 11 received currents, and the piston rod of controlling suspender cushion cylinder 10 stretches out or shrinks.
Control setup 12 can receive outside instruction or according to the instruction of inner setting, the size of electrohydraulic proportional control valve 11 received currents be adjusted.
The control system of face-up transporting hoist of container crane hanger cushion cylinder of the present utility model, the in-line of employing electrohydraulic proportional control valve control suspender cushion cylinder, eliminates the uncontrolled drawback of suspender angle.
Electrohydraulic proportional control valve, or be called electro-hydraulic proportional valve, apportioning valve, the regulation and control device that is replaced common hydraulic valve by proportion electro-magnet forms.It can control continuously pari passu at a distance by given input voltage or current signal direction, pressure and the flow of fluid.Adopt electrohydraulic proportional control valve to improve degree of automation and the precision of system, simplified again system.Apportioning valve keystone configuration and common valve difference are little, and just apportioning valve drives (a kind of electricity-mechanical transducer) by proportion electro-magnet.Apportioning valve is divided into: three kinds of proportional pressure valve, proportional flow control valve and proportional direction valves.
The principle of work of electrohydraulic proportional control valve: input is for controlling electric weight, convert corresponding current signal to through electric controller amplification and input to electromechanical transfer device, the latter's output and the approximately proportional power of received current, displacement etc., and output has certain pressure p in proportion, the hydraulic oil of flow Q is to drive hydraulic actuator, power element is also by pro rata power output, speed or torque etc., to drive load.
According to an embodiment of the present utility model, control system also comprises the angular transducer that detects jib angle of inclination.Control setup 12 is electrically connected with angular transducer.The jib angle of inclination that control setup 12 detects according to angular transducer, adjusts the size of electrohydraulic proportional control valve 11 received currents, controls the leaning angle of suspender.
In the time that front handling mobile crane is worked, luffing range of cantilever support, at this moment change angle starts to change, and by CAN bus communication, is transferred to control setup 12.Control setup 12 is through judgement and calculating, the electric current input of control ratio electromagnetic valve, spool displacement is changed, system is inputted certain pressure to suspender cushion cylinder, the stroke of suspender cushion cylinder is along with variation, thereby adjust the angle of inclination of suspender, by electric-hydraulic proportion mode, realize the closed loop control to angle.
According to an embodiment of the present utility model, control setup 12 is connected by CAN bus with electrohydraulic proportional control valve 11 and angular transducer.
According to an embodiment of the present utility model, hydraulic subsystem also comprises: be arranged on the safety valve 13 in way to cycle oil.Pressure oil in suspender cushion cylinder returns to fuel tank by return opening and the safety valve 13 of suspender cushion cylinder.
According to an embodiment of the present utility model, hydraulic subsystem also comprises: overload protection loop, the pressure in protection oil-feed loop does not exceed threshold value.The one end in overload protection loop is connected with oil-feed path, and the other end is connected with fuel tank, in overload protection loop, by pass valve is set.Hydraulic subsystem also comprises: hydraulic planger pump, and as the dynamical element of pressure oil.Oil inlet place at suspender cushion cylinder arranges filter.System also comprises telltale.Telltale is electrically connected with control setup.
As shown in Fig. 3 A and 3B, use the suspender cushion cylinder of control system of the present utility model, can make front handling mobile crane suspender in the time of lifting there is certain angle of inclination, can, fast to case, increase work efficiency.
In the time that front handling mobile crane is worked, jib 21 luffings, at this moment change angle β starts to change, and by CAN bus communication, is transferred to control setup.Control setup 12 process judgement and calculating, the electric current input of control ratio electromagnetic valve, changes spool displacement, inputs certain pressure to suspender cushion cylinder 22, and the stroke of suspender cushion cylinder 22 is along with variation, thus the angle of inclination of adjustment suspender 23.
According to an embodiment of the present utility model, the in-line of suspender cushion cylinder 22 is controlled by electrohydraulic proportional control valve, utilize electric-hydraulic proportion control principle, detected the angle of amplitude oil cylinder by angular transducer, the size of comparative example electromagnetic valve received current is adjusted, constantly change thereby realize suspender cushion cylinder 23 strokes, constantly adjust position with the motion of amplitude oil cylinder, final realization lifted by crane case smoothly.
According to an embodiment of the present utility model, a kind of face-up transporting hoist of container hoisting crane comprises the suspender cushion cylinder control system of face-up transporting hoist of container hoisting crane as above.
Control system and the hoisting crane of face-up transporting hoist of container crane hanger cushion cylinder of the present utility model, can make suspender angle of inclination controlled, improves operator case is judged, can facilitate and complete smoothly case, improves handling transition efficiency.
Description of the present utility model provides for example with for the purpose of describing, and is not exhaustively or by the utility model to be limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is for better explanation principle of the present utility model and practical application, thereby and makes those of ordinary skill in the art can understand the utility model design to be suitable for the various embodiment with various modifications of special-purpose.

Claims (9)

1. a control system for face-up transporting hoist of container crane hanger cushion cylinder, is characterized in that, comprising:
Hydraulic subsystem and control setup;
Described hydraulic subsystem comprises: be arranged on the electrohydraulic proportional control valve in oil-feed path; Described pressure oil enters the oil inlet of suspender cushion cylinder by described electrohydraulic proportional control valve; Described control setup is electrically connected with described electrohydraulic proportional control valve; Described control setup is by controlling the received current of described electrohydraulic proportional control valve, and the piston rod of controlling described suspender cushion cylinder stretches out or shrinks;
Wherein, the two ends of described suspender cushion cylinder are hinged with jib and suspender respectively, and one end of described jib is fixedly connected with the upper end of arm head, and the lower end of described suspender and described arm head is hinged.
2. the system as claimed in claim 1, is characterized in that:
Also comprise the angular transducer that detects jib angle of inclination; Described control setup is electrically connected with described angular transducer.
3. system as claimed in claim 2, is characterized in that:
Described control setup is connected by CAN bus with described electrohydraulic proportional control valve and described angular transducer.
4. the system as claimed in claim 1, is characterized in that:
Described hydraulic subsystem also comprises: be arranged on the safety valve in way to cycle oil;
Pressure oil in described suspender cushion cylinder returns to fuel tank by return opening and the described safety valve of described suspender cushion cylinder.
5. system as claimed in claim 4, is characterized in that:
Described hydraulic subsystem also comprises: overload protection loop;
Wherein, the one end in described overload protection loop is connected with described oil-feed path, and the other end is connected with described fuel tank, in described overload protection loop, by pass valve is set.
6. system as claimed in claim 5, is characterized in that:
Described hydraulic subsystem also comprises: hydraulic planger pump.
7. system as claimed in claim 6, is characterized in that:
Oil inlet place at suspender cushion cylinder arranges filter.
8. the system as claimed in claim 1, is characterized in that:
Also comprise telltale; Described telltale is electrically connected with described control setup.
9. a face-up transporting hoist of container hoisting crane, is characterized in that:
Comprise the suspender cushion cylinder control system of the face-up transporting hoist of container hoisting crane as described in claim 1 to 8 any one.
CN201320524906.4U 2013-08-27 2013-08-27 Container front lifting crane and control system of lifting appliance buffer oil cylinder of container front lifting crane Withdrawn - After Issue CN203699702U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320524906.4U CN203699702U (en) 2013-08-27 2013-08-27 Container front lifting crane and control system of lifting appliance buffer oil cylinder of container front lifting crane

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Application Number Priority Date Filing Date Title
CN201320524906.4U CN203699702U (en) 2013-08-27 2013-08-27 Container front lifting crane and control system of lifting appliance buffer oil cylinder of container front lifting crane

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103407894A (en) * 2013-08-27 2013-11-27 徐州重型机械有限公司 Container front lifting crane and control system of lifting appliance buffer oil cylinder thereof
CN111302226A (en) * 2020-05-11 2020-06-19 上海驭矩信息科技有限公司 Automatic container placing device based on expert system and control method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103407894A (en) * 2013-08-27 2013-11-27 徐州重型机械有限公司 Container front lifting crane and control system of lifting appliance buffer oil cylinder thereof
CN103407894B (en) * 2013-08-27 2015-12-23 徐州重型机械有限公司 The control system of face-up transporting hoist of container crane hanger cushion cylinder and hoisting crane
CN111302226A (en) * 2020-05-11 2020-06-19 上海驭矩信息科技有限公司 Automatic container placing device based on expert system and control method thereof
WO2021227858A1 (en) * 2020-05-11 2021-11-18 上海驭矩信息科技有限公司 Automatic container landing device based on expert system and control method therefor
US11713218B2 (en) 2020-05-11 2023-08-01 Shanghai Master Matrix Information Technology Automatic container landing device based on expert system and control method therefor

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C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20140709

Effective date of abandoning: 20151223

AV01 Patent right actively abandoned

Granted publication date: 20140709

Effective date of abandoning: 20151223

C25 Abandonment of patent right or utility model to avoid double patenting