CN105256857B - Rational in infrastructure harrows grab boat hydraulic system from boat steel - Google Patents
Rational in infrastructure harrows grab boat hydraulic system from boat steel Download PDFInfo
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- CN105256857B CN105256857B CN201510405227.9A CN201510405227A CN105256857B CN 105256857 B CN105256857 B CN 105256857B CN 201510405227 A CN201510405227 A CN 201510405227A CN 105256857 B CN105256857 B CN 105256857B
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Abstract
The invention discloses a kind of steel rake grab boat hydraulic system of boat certainly rational in infrastructure, including hydraulic actuating mechanism, hydraulic power unit, hydraulic control system, fluid pressure line, hydraulic electric control system, rational in infrastructure, favorable working performance of the invention is easy to operate using safety.
Description
Technical field
The present invention relates to a kind of from boat steel rake grab boat hydraulic system.
Background technology
It is existing to there is certain defect in terms of service behaviour, structure type from boat steel rake grab boat hydraulic system,
Inefficiency is, it is necessary to further be improved.
The content of the invention
It is an object of the invention to provide a kind of steel rake grab boat hydraulic pressure of boat certainly rational in infrastructure of favorable working performance
System.
The present invention technical solution be：
It is a kind of to harrow grab boat hydraulic system, including hydraulic actuating mechanism, hydraulic power unit, hydraulic control system from boat steel
System, fluid pressure line, hydraulic electric control system, it is characterized in that：
（1）Hydraulic actuating mechanism includes four sets of spud gantry lifting device, chassis walking oil cylinder two, steel rake hauling winch one
Platform, four, windlass capstan winch；
（2）The configuration of system dynamic pump group is as follows：
Often motor pump group of the set lowering or hoisting gear with 2 22KW fuel feeding in parallel is to hoist cylinder, speed of service when separate unit is run
Halve, i.e., two are met an urgent need each other, improve the reliability of system, full ship totally 8 motor pump groups；
Full ship adjusts two 4KW motors pump groups to be plugging pin oil cylinder fuel feeding, and one is opened for one or two and with each other depending on actual condition
Emergent, short for run time the characteristics of because of plugging pin oil cylinder, moment flow is big, therefore sets in pump discharge oil circuit 2 volume 40L
Accumulator;
The lifting pumping source of 1# lowering or hoisting gears is simultaneous to supply 1# chassis oil cylinders, and the lifting pump of 2# lowering or hoisting gears is simultaneous to supply 2# chassis oil cylinders,
The lifting pumping source of 3# lowering or hoisting gears is simultaneous to supply hauling winch, and the lifting pumping source of 4# lowering or hoisting gears is simultaneous for 4 windlass capstan winches, plugging pin oil cylinder
Pumping source provides power oil sources for 8 main pump variables simultaneously;
8 main oil pumps select constant pressure, invariable power proportional variable pump, and the input signal of wherein rate variable is set as two admittedly
Definite value realizes two kinds of working condition requirements of low pressure huge discharge and high-pressure small-displacement, and the electromagnetism overflow relief valve of fuel pump outlet is also set to height
Low two grades of operating pressures, initial setting data are 125ml/r-6MPa or 30ml/r-27.5MPa；Motor synchronous rotational speed
1500rpm；
Consignment oil cylinder selects 16ml/r constant pressure variable displacement pump, reduces the heating of system, and variable pressure is set as 8.5MPa；
Back pressure check valve, return filter and cooler are set in total return line of pumping plant；
（3）Hydraulic control system
Chassis oil cylinder, hauling winch, windlass capstan winch control mode it is relatively simple, wherein four windlass capstan winches are using by machine
Hand-operated valve is controlled, and chassis oil cylinder and hauling winch use electro-hydraulic control；
The control of lowering or hoisting gear：
Hoist cylinder four is had in per covering device, and four oil need synchronization lifting, from the structure of lowering or hoisting gear, four
Root hoist cylinder is actually that mechanism is synchronous, therefore four oil cylinders in parallel can control commutation using 1 way reversing valve；Due to fixed
Position stake decline and hull decline for oil cylinder be two different oil pockets by back-pressure balance control, therefore, in A, B of reversal valve
It is both needed to set one-way balance valve to make back pressure control and hydraulic locking in total oil circuit；
Because the mounting means of hoist cylinder is two oscillating bearing, there is the swing of certain amplitude when oil cylinder is run,
Therefore the AB hydraulic fluid ports of every oil cylinder are connected with house steward AB need to use high-pressure hose transition, it is contemplated that the security of system, therefore every
Oil cylinder is both needed to set hydraulic lock, and the oil return of the hydraulic lock has the back pressure of one-way balance valve, so the hydraulic lock need to use external control
The product leaked；
In the flexible pipe anti-explosion safety item of hoist cylinder AB hydraulic fluid ports, also another scheme is available, is exactly four
The A mouths of individual hoist cylinder are all provided with fixing damping hole with B mouthfuls, cancel the hydraulic lock on single oil cylinder；Such four oil cylinders are located all the time
Worked under parallel connection, even if a certain flexible pipe bursts, hull is at most simply steady slowly to decline a stroke；
Two groups of totally four plugging pin oil cylinders above and below having in lowering or hoisting gear, every group two simultaneous retractables in parallel, to ensure system
Security, two group oil cylinders are in extended position using the control of " P " type reversal valve, such two groups of latches of reset condition,
There was only one group of latch extraction during commutation, therefore at least one group latch is in stretching state all the time under any operating mode, it is ensured that it is
The security of system；
（4）Fluid pressure line and hydraulic oil
Full ship fluid pressure line is made by shipyard by hydraulic system principle figure requirement, to improve the net synchronization capability of four oil cylinders,
House steward AB needs to be connected using " Central Symmetry " stringing with the branch pipe of four oil cylinders, makes the hydraulic fluid port of every oil cylinder to the oil circuit knot of house steward
Structure is identical, so effectively can further improve the synchronization of oil cylinder；Using No. 68 antiwear hydraulic oils, oil cleanliness is
NAS8 ~ 9 grade；
（5）Hydraulic electric control system
Full ship hydraulic electric control system is by Electric Machine at Pumping Station control cabinet, PLC centralized-control boxes, driver's cabin centralized control panel and stake
The other part of control cabinet four composition, each several part sets following functions：
The automatically controlled control cabinet of pumping plant：8 22KW star triangle start-up and shut-down control, and 2 4KW motors directly initiate control, and
If the Remote Control Interface of driver's cabin, degree of protection IP22 is arranged in pumping plant cabin；
PLC control cabinet：PLC control cabinet realizes that, to system-wide accurate control, alarm signal control and interlocking, panel sets electricity
Source switch, degree of protection is IP22, may be arranged at pumping plant cabin or drives interior；
Driver's cabin centralized control panel includes：
Control power switch；Instruction is opened and run in the remote control of motor；Hydraulic system concentrates sound and light alarm；The operation of each pumping source
Oil pressure is shown；Level meter；2 sets of chassis oil cylinder controls and operation are indicated；1 set of hauling winch control and operation are indicated；Main oil pump two
Plant operating mode selecting switch；Hoist cylinder extension and contraction control, stroke are shown, extreme position is indicated, four sets of lifting synchronizations of jacking up；Latch oil
Cylinder pull pin control and snibbing position show；" audition ", " noise reduction " are switched；Running status and alarm indication are shown using HMI；
The other control cabinet of stake
A set of control cabinet degree of protection often is set as IP56 by set guide pile, if following control content
Control change-over switch；Two kinds of operating mode operation selections；Hoist cylinder extension and contraction control；Plugging pin oil cylinder extracts control and latch
Position display.
Oil cleanliness is NAS8 grades.
Oil cleanliness is NAS9 grades.
Cooling water flow is 20 ~ 30m in cooler3/h。
The present invention is rational in infrastructure, favorable working performance, using safe, easy to operate.
With reference to embodiment, the invention will be further described.
Embodiment
Embodiment 1：
It is a kind of to harrow grab boat hydraulic system, including hydraulic actuating mechanism, hydraulic power unit, hydraulic control system from boat steel
System, fluid pressure line, hydraulic electric control system, it is characterized in that：
（1）Hydraulic actuating mechanism includes four sets of spud gantry lifting device, chassis walking oil cylinder two, steel rake hauling winch one
Platform, four, windlass capstan winch；
（2）The configuration of system dynamic pump group is as follows：
Often motor pump group of the set lowering or hoisting gear with 2 22KW fuel feeding in parallel is to hoist cylinder, speed of service when separate unit is run
Halve, i.e., two are met an urgent need each other, improve the reliability of system, full ship totally 8 motor pump groups；
Full ship adjusts two 4KW motors pump groups to be plugging pin oil cylinder fuel feeding, and one is opened for one or two and with each other depending on actual condition
Emergent, short for run time the characteristics of because of plugging pin oil cylinder, moment flow is big, therefore sets in pump discharge oil circuit 2 volume 40L
Accumulator;
The lifting pumping source of 1# lowering or hoisting gears is simultaneous to supply 1# chassis oil cylinders, and the lifting pump of 2# lowering or hoisting gears is simultaneous to supply 2# chassis oil cylinders,
The lifting pumping source of 3# lowering or hoisting gears is simultaneous to supply hauling winch, and the lifting pumping source of 4# lowering or hoisting gears is simultaneous for 4 windlass capstan winches, plugging pin oil cylinder
Pumping source provides power oil sources for 8 main pump variables simultaneously;
8 main oil pumps select constant pressure, invariable power proportional variable pump, and the input signal of wherein rate variable is set as two admittedly
Definite value realizes two kinds of working condition requirements of low pressure huge discharge and high-pressure small-displacement, and the electromagnetism overflow relief valve of fuel pump outlet is also set to height
Low two grades of operating pressures, initial setting data are 125ml/r-6MPa or 30ml/r-27.5MPa；Motor synchronous rotational speed
1500rpm；
Consignment oil cylinder selects 16ml/r constant pressure variable displacement pump, reduces the heating of system, and variable pressure is set as 8.5MPa；
Back pressure check valve, return filter and cooler are set in total return line of pumping plant；
（3）Hydraulic control system
Chassis oil cylinder, hauling winch, windlass capstan winch control mode it is relatively simple, wherein four windlass capstan winches are using by machine
Hand-operated valve is controlled, and chassis oil cylinder and hauling winch use electro-hydraulic control；
The control of lowering or hoisting gear：
Hoist cylinder four is had in per covering device, and four oil need synchronization lifting, from the structure of lowering or hoisting gear, four
Root hoist cylinder is actually that mechanism is synchronous, therefore four oil cylinders in parallel can control commutation using 1 way reversing valve；Due to fixed
Position stake decline and hull decline for oil cylinder be two different oil pockets by back-pressure balance control, therefore, in A, B of reversal valve
It is both needed to set one-way balance valve to make back pressure control and hydraulic locking in total oil circuit；
Because the mounting means of hoist cylinder is two oscillating bearing, there is the swing of certain amplitude when oil cylinder is run,
Therefore the AB hydraulic fluid ports of every oil cylinder are connected with house steward AB need to use high-pressure hose transition, it is contemplated that the security of system, therefore every
Oil cylinder is both needed to set hydraulic lock, and the oil return of the hydraulic lock has the back pressure of one-way balance valve, so the hydraulic lock need to use external control
The product leaked；
In the flexible pipe anti-explosion safety item of hoist cylinder AB hydraulic fluid ports, also another scheme is available, is exactly four
The A mouths of individual hoist cylinder are all provided with fixing damping hole with B mouthfuls, cancel the hydraulic lock on single oil cylinder；Such four oil cylinders are located all the time
Worked under parallel connection, even if a certain flexible pipe bursts, hull is at most simply steady slowly to decline a stroke；
Two groups of totally four plugging pin oil cylinders above and below having in lowering or hoisting gear, every group two simultaneous retractables in parallel, to ensure system
Security, two group oil cylinders are in extended position using the control of " P " type reversal valve, such two groups of latches of reset condition,
There was only one group of latch extraction during commutation, therefore at least one group latch is in stretching state all the time under any operating mode, it is ensured that it is
The security of system；
（4）Fluid pressure line and hydraulic oil
Full ship fluid pressure line is made by shipyard by hydraulic system principle figure requirement, to improve the net synchronization capability of four oil cylinders,
House steward AB needs to be connected using " Central Symmetry " stringing with the branch pipe of four oil cylinders, makes the hydraulic fluid port of every oil cylinder to the oil circuit knot of house steward
Structure is identical, so effectively can further improve the synchronization of oil cylinder；Using No. 68 antiwear hydraulic oils, oil cleanliness is
NAS8 ~ 9 grade；
（5）Hydraulic electric control system
Full ship hydraulic electric control system is by Electric Machine at Pumping Station control cabinet, PLC centralized-control boxes, driver's cabin centralized control panel and stake
The other part of control cabinet four composition, each several part sets following functions：
The automatically controlled control cabinet of pumping plant：8 22KW star triangle start-up and shut-down control, and 2 4KW motors directly initiate control, and
If the Remote Control Interface of driver's cabin, degree of protection IP22 is arranged in pumping plant cabin；
PLC control cabinet：PLC control cabinet realizes that, to system-wide accurate control, alarm signal control and interlocking, panel sets electricity
Source switch, degree of protection is IP22, may be arranged at pumping plant cabin or drives interior；
Driver's cabin centralized control panel includes：
Control power switch；Instruction is opened and run in the remote control of motor；Hydraulic system concentrates sound and light alarm；The operation of each pumping source
Oil pressure is shown；Level meter；2 sets of chassis oil cylinder controls and operation are indicated；1 set of hauling winch control and operation are indicated；Main oil pump two
Plant operating mode selecting switch；Hoist cylinder extension and contraction control, stroke are shown, extreme position is indicated, four sets of lifting synchronizations of jacking up；Latch oil
Cylinder pull pin control and snibbing position show；" audition ", " noise reduction " are switched；Running status and alarm indication are shown using HMI；
The other control cabinet of stake
A set of control cabinet degree of protection often is set as IP56 by set guide pile, if following control content
Control change-over switch；Two kinds of operating mode operation selections；Hoist cylinder extension and contraction control；Plugging pin oil cylinder extracts control and latch
Position display.
Oil cleanliness is NAS8 grades.
Cooling water flow is 30m in cooler3/h。
Embodiment 2：
It is a kind of to harrow grab boat hydraulic system, including hydraulic actuating mechanism, hydraulic power unit, hydraulic control system from boat steel
System, fluid pressure line, hydraulic electric control system, it is characterized in that：
（1）Hydraulic actuating mechanism includes four sets of spud gantry lifting device, chassis walking oil cylinder two, steel rake hauling winch one
Platform, four, windlass capstan winch；
（2）The configuration of system dynamic pump group is as follows：
Often motor pump group of the set lowering or hoisting gear with 2 22KW fuel feeding in parallel is to hoist cylinder, speed of service when separate unit is run
Halve, i.e., two are met an urgent need each other, improve the reliability of system, full ship totally 8 motor pump groups；
Full ship adjusts two 4KW motors pump groups to be plugging pin oil cylinder fuel feeding, and one is opened for one or two and with each other depending on actual condition
Emergent, short for run time the characteristics of because of plugging pin oil cylinder, moment flow is big, therefore sets in pump discharge oil circuit 2 volume 40L
Accumulator;
The lifting pumping source of 1# lowering or hoisting gears is simultaneous to supply 1# chassis oil cylinders, and the lifting pump of 2# lowering or hoisting gears is simultaneous to supply 2# chassis oil cylinders,
The lifting pumping source of 3# lowering or hoisting gears is simultaneous to supply hauling winch, and the lifting pumping source of 4# lowering or hoisting gears is simultaneous for 4 windlass capstan winches, plugging pin oil cylinder
Pumping source provides power oil sources for 8 main pump variables simultaneously;
8 main oil pumps select constant pressure, invariable power proportional variable pump, and the input signal of wherein rate variable is set as two admittedly
Definite value realizes two kinds of working condition requirements of low pressure huge discharge and high-pressure small-displacement, and the electromagnetism overflow relief valve of fuel pump outlet is also set to height
Low two grades of operating pressures, initial setting data are 125ml/r-6MPa or 30ml/r-27.5MPa；Motor synchronous rotational speed
1500rpm；
Consignment oil cylinder selects 16ml/r constant pressure variable displacement pump, reduces the heating of system, and variable pressure is set as 8.5MPa；
Back pressure check valve, return filter and cooler are set in total return line of pumping plant；
（3）Hydraulic control system
Chassis oil cylinder, hauling winch, windlass capstan winch control mode it is relatively simple, wherein four windlass capstan winches are using by machine
Hand-operated valve is controlled, and chassis oil cylinder and hauling winch use electro-hydraulic control；
The control of lowering or hoisting gear：
Hoist cylinder four is had in per covering device, and four oil need synchronization lifting, from the structure of lowering or hoisting gear, four
Root hoist cylinder is actually that mechanism is synchronous, therefore four oil cylinders in parallel can control commutation using 1 way reversing valve；Due to fixed
Position stake decline and hull decline for oil cylinder be two different oil pockets by back-pressure balance control, therefore, in A, B of reversal valve
It is both needed to set one-way balance valve to make back pressure control and hydraulic locking in total oil circuit；
Because the mounting means of hoist cylinder is two oscillating bearing, there is the swing of certain amplitude when oil cylinder is run,
Therefore the AB hydraulic fluid ports of every oil cylinder are connected with house steward AB need to use high-pressure hose transition, it is contemplated that the security of system, therefore every
Oil cylinder is both needed to set hydraulic lock, and the oil return of the hydraulic lock has the back pressure of one-way balance valve, so the hydraulic lock need to use external control
The product leaked；
In the flexible pipe anti-explosion safety item of hoist cylinder AB hydraulic fluid ports, also another scheme is available, is exactly four
The A mouths of individual hoist cylinder are all provided with fixing damping hole with B mouthfuls, cancel the hydraulic lock on single oil cylinder；Such four oil cylinders are located all the time
Worked under parallel connection, even if a certain flexible pipe bursts, hull is at most simply steady slowly to decline a stroke；
Two groups of totally four plugging pin oil cylinders above and below having in lowering or hoisting gear, every group two simultaneous retractables in parallel, to ensure system
Security, two group oil cylinders are in extended position using the control of " P " type reversal valve, such two groups of latches of reset condition,
There was only one group of latch extraction during commutation, therefore at least one group latch is in stretching state all the time under any operating mode, it is ensured that it is
The security of system；
（4）Fluid pressure line and hydraulic oil
Full ship fluid pressure line is made by shipyard by hydraulic system principle figure requirement, to improve the net synchronization capability of four oil cylinders,
House steward AB needs to be connected using " Central Symmetry " stringing with the branch pipe of four oil cylinders, makes the hydraulic fluid port of every oil cylinder to the oil circuit knot of house steward
Structure is identical, so effectively can further improve the synchronization of oil cylinder；Using No. 68 antiwear hydraulic oils, oil cleanliness is
NAS8 ~ 9 grade；
（5）Hydraulic electric control system
Full ship hydraulic electric control system is by Electric Machine at Pumping Station control cabinet, PLC centralized-control boxes, driver's cabin centralized control panel and stake
The other part of control cabinet four composition, each several part sets following functions：
The automatically controlled control cabinet of pumping plant：8 22KW star triangle start-up and shut-down control, and 2 4KW motors directly initiate control, and
If the Remote Control Interface of driver's cabin, degree of protection IP22 is arranged in pumping plant cabin；
PLC control cabinet：PLC control cabinet realizes that, to system-wide accurate control, alarm signal control and interlocking, panel sets electricity
Source switch, degree of protection is IP22, may be arranged at pumping plant cabin or drives interior；
Driver's cabin centralized control panel includes：
Control power switch；Instruction is opened and run in the remote control of motor；Hydraulic system concentrates sound and light alarm；The operation of each pumping source
Oil pressure is shown；Level meter；2 sets of chassis oil cylinder controls and operation are indicated；1 set of hauling winch control and operation are indicated；Main oil pump two
Plant operating mode selecting switch；Hoist cylinder extension and contraction control, stroke are shown, extreme position is indicated, four sets of lifting synchronizations of jacking up；Latch oil
Cylinder pull pin control and snibbing position show；" audition ", " noise reduction " are switched；Running status and alarm indication are shown using HMI；
The other control cabinet of stake
A set of control cabinet degree of protection often is set as IP56 by set guide pile, if following control content
Control change-over switch；Two kinds of operating mode operation selections；Hoist cylinder extension and contraction control；Plugging pin oil cylinder extracts control and latch
Position display.
Oil cleanliness is NAS9 grades.
Cooling water flow is 25m in cooler3/h。
Embodiment 3：
It is a kind of to harrow grab boat hydraulic system, including hydraulic actuating mechanism, hydraulic power unit, hydraulic control system from boat steel
System, fluid pressure line, hydraulic electric control system, it is characterized in that：
（1）Hydraulic actuating mechanism includes four sets of spud gantry lifting device, chassis walking oil cylinder two, steel rake hauling winch one
Platform, four, windlass capstan winch；
（2）The configuration of system dynamic pump group is as follows：
Often motor pump group of the set lowering or hoisting gear with 2 22KW fuel feeding in parallel is to hoist cylinder, speed of service when separate unit is run
Halve, i.e., two are met an urgent need each other, improve the reliability of system, full ship totally 8 motor pump groups；
Full ship adjusts two 4KW motors pump groups to be plugging pin oil cylinder fuel feeding, and one is opened for one or two and with each other depending on actual condition
Emergent, short for run time the characteristics of because of plugging pin oil cylinder, moment flow is big, therefore sets in pump discharge oil circuit 2 volume 40L
Accumulator;
The lifting pumping source of 1# lowering or hoisting gears is simultaneous to supply 1# chassis oil cylinders, and the lifting pump of 2# lowering or hoisting gears is simultaneous to supply 2# chassis oil cylinders,
The lifting pumping source of 3# lowering or hoisting gears is simultaneous to supply hauling winch, and the lifting pumping source of 4# lowering or hoisting gears is simultaneous for 4 windlass capstan winches, plugging pin oil cylinder
Pumping source provides power oil sources for 8 main pump variables simultaneously;
8 main oil pumps select constant pressure, invariable power proportional variable pump, and the input signal of wherein rate variable is set as two admittedly
Definite value realizes two kinds of working condition requirements of low pressure huge discharge and high-pressure small-displacement, and the electromagnetism overflow relief valve of fuel pump outlet is also set to height
Low two grades of operating pressures, initial setting data are 125ml/r-6MPa or 30ml/r-27.5MPa；Motor synchronous rotational speed
1500rpm；
Consignment oil cylinder selects 16ml/r constant pressure variable displacement pump, reduces the heating of system, and variable pressure is set as 8.5MPa；
Back pressure check valve, return filter and cooler are set in total return line of pumping plant；
（3）Hydraulic control system
Chassis oil cylinder, hauling winch, windlass capstan winch control mode it is relatively simple, wherein four windlass capstan winches are using by machine
Hand-operated valve is controlled, and chassis oil cylinder and hauling winch use electro-hydraulic control；
The control of lowering or hoisting gear：
Hoist cylinder four is had in per covering device, and four oil need synchronization lifting, from the structure of lowering or hoisting gear, four
Root hoist cylinder is actually that mechanism is synchronous, therefore four oil cylinders in parallel can control commutation using 1 way reversing valve；Due to fixed
Position stake decline and hull decline for oil cylinder be two different oil pockets by back-pressure balance control, therefore, in A, B of reversal valve
It is both needed to set one-way balance valve to make back pressure control and hydraulic locking in total oil circuit；
Because the mounting means of hoist cylinder is two oscillating bearing, there is the swing of certain amplitude when oil cylinder is run,
Therefore the AB hydraulic fluid ports of every oil cylinder are connected with house steward AB need to use high-pressure hose transition, it is contemplated that the security of system, therefore every
Oil cylinder is both needed to set hydraulic lock, and the oil return of the hydraulic lock has the back pressure of one-way balance valve, so the hydraulic lock need to use external control
The product leaked；
In the flexible pipe anti-explosion safety item of hoist cylinder AB hydraulic fluid ports, also another scheme is available, is exactly four
The A mouths of individual hoist cylinder are all provided with fixing damping hole with B mouthfuls, cancel the hydraulic lock on single oil cylinder；Such four oil cylinders are located all the time
Worked under parallel connection, even if a certain flexible pipe bursts, hull is at most simply steady slowly to decline a stroke；
Two groups of totally four plugging pin oil cylinders above and below having in lowering or hoisting gear, every group two simultaneous retractables in parallel, to ensure system
Security, two group oil cylinders are in extended position using the control of " P " type reversal valve, such two groups of latches of reset condition,
There was only one group of latch extraction during commutation, therefore at least one group latch is in stretching state all the time under any operating mode, it is ensured that it is
The security of system；
（4）Fluid pressure line and hydraulic oil
Full ship fluid pressure line is made by shipyard by hydraulic system principle figure requirement, to improve the net synchronization capability of four oil cylinders,
House steward AB needs to be connected using " Central Symmetry " stringing with the branch pipe of four oil cylinders, makes the hydraulic fluid port of every oil cylinder to the oil circuit knot of house steward
Structure is identical, so effectively can further improve the synchronization of oil cylinder；Using No. 68 antiwear hydraulic oils, oil cleanliness is
NAS8 ~ 9 grade；
（5）Hydraulic electric control system
Full ship hydraulic electric control system is by Electric Machine at Pumping Station control cabinet, PLC centralized-control boxes, driver's cabin centralized control panel and stake
The other part of control cabinet four composition, each several part sets following functions：
The automatically controlled control cabinet of pumping plant：8 22KW star triangle start-up and shut-down control, and 2 4KW motors directly initiate control, and
If the Remote Control Interface of driver's cabin, degree of protection IP22 is arranged in pumping plant cabin；
PLC control cabinet：PLC control cabinet realizes that, to system-wide accurate control, alarm signal control and interlocking, panel sets electricity
Source switch, degree of protection is IP22, may be arranged at pumping plant cabin or drives interior；
Driver's cabin centralized control panel includes：
Control power switch；Instruction is opened and run in the remote control of motor；Hydraulic system concentrates sound and light alarm；The operation of each pumping source
Oil pressure is shown；Level meter；2 sets of chassis oil cylinder controls and operation are indicated；1 set of hauling winch control and operation are indicated；Main oil pump two
Plant operating mode selecting switch；Hoist cylinder extension and contraction control, stroke are shown, extreme position is indicated, four sets of lifting synchronizations of jacking up；Latch oil
Cylinder pull pin control and snibbing position show；" audition ", " noise reduction " are switched；Running status and alarm indication are shown using HMI；
The other control cabinet of stake
A set of control cabinet degree of protection often is set as IP56 by set guide pile, if following control content
Control change-over switch；Two kinds of operating mode operation selections；Hoist cylinder extension and contraction control；Plugging pin oil cylinder extracts control and latch
Position display.
Oil cleanliness is NAS8 grades.
Cooling water flow is 20m in cooler3/h。
Claims (4)
1. a kind of steel rake grab boat hydraulic system of boat certainly rational in infrastructure, including hydraulic actuating mechanism, hydraulic power unit, hydraulic pressure
Control system, fluid pressure line, hydraulic electric control system, it is characterized in that：
(1) hydraulic actuating mechanism includes four sets of spud gantry lifting device, and chassis walking oil cylinder two, steel harrows hauling winch one,
Four, windlass capstan winch；
(2) configuration of system dynamic pump group is as follows：
Often motor pump group of the set lowering or hoisting gear with 2 22KW fuel feeding in parallel is to hoist cylinder, and the speed of service halves when separate unit is run,
I.e. two are met an urgent need each other, improve the reliability of system, full ship totally 8 motor pump groups；
Full ship adjusts two 4KW motors pump groups to be plugging pin oil cylinder fuel feeding, and one is opened for one or two and with meeting an urgent need each other depending on actual condition,
The characteristics of because of plugging pin oil cylinder is that run time is short, and moment flow is big, therefore sets in pump discharge oil circuit 2 volume 40L accumulation of energy
Device；
The lifting pumping source of 1# lowering or hoisting gears is simultaneous to supply 1# chassis oil cylinders, and the lifting pump of 2# lowering or hoisting gears is simultaneous to supply 2# chassis oil cylinders, 3# liters
The lifting pumping source of falling unit is simultaneous to supply hauling winch, and the lifting pumping source of 4# lowering or hoisting gears is simultaneous for 4 windlass capstan winches, plugging pin oil cylinder pumping source
Simultaneously power oil sources is provided for 8 main pump variables；
8 main pumps select constant pressure, invariable power proportional variable pump, and the input signal of wherein rate variable is set as two fixed value realities
Two kinds of working condition requirements of existing low pressure huge discharge and high-pressure small-displacement, the electromagnetism overflow relief valve of fuel pump outlet is also set to two grades of height
Operating pressure, initial setting data are 125ml/r-6MPa or 30ml/r-27.5MPa；Motor synchronous rotational speed 1500rpm；
Plugging pin oil cylinder selects 16ml/r constant pressure variable displacement pump, reduces the heating of system, and variable pressure is set as 8.5MPa；
Back pressure check valve, return filter and cooler are set in total return line of pumping plant.
2. the steel rake grab boat hydraulic system of boat certainly rational in infrastructure according to claim 1, it is characterized in that：Fluid is clear
Cleanliness is NAS8 grades.
3. the steel rake grab boat hydraulic system of boat certainly rational in infrastructure according to claim 1, it is characterized in that：Fluid is clear
Cleanliness is NAS9 grades.
4. the steel rake grab boat hydraulic system of boat certainly rational in infrastructure according to claim 1, it is characterized in that：Cooler
Middle cooling water flow is 20~30m3/h。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510405227.9A CN105256857B (en) | 2015-07-13 | 2015-07-13 | Rational in infrastructure harrows grab boat hydraulic system from boat steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510405227.9A CN105256857B (en) | 2015-07-13 | 2015-07-13 | Rational in infrastructure harrows grab boat hydraulic system from boat steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105256857A CN105256857A (en) | 2016-01-20 |
| CN105256857B true CN105256857B (en) | 2017-08-22 |
Family
ID=55096761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510405227.9A Expired - Fee Related CN105256857B (en) | 2015-07-13 | 2015-07-13 | Rational in infrastructure harrows grab boat hydraulic system from boat steel |
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| CN (1) | CN105256857B (en) |
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| CN105256857A (en) | 2016-01-20 |
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