CN105256857A - Reasonable-structure hydraulic system of self-propulsion steel rake grab dredger - Google Patents
Reasonable-structure hydraulic system of self-propulsion steel rake grab dredger Download PDFInfo
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- CN105256857A CN105256857A CN201510405227.9A CN201510405227A CN105256857A CN 105256857 A CN105256857 A CN 105256857A CN 201510405227 A CN201510405227 A CN 201510405227A CN 105256857 A CN105256857 A CN 105256857A
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Abstract
The invention discloses a reasonable-structure hydraulic system of a self-propulsion steel rake grab dredger. The reasonable-structure hydraulic system of the self-propulsion steel rake grab dredger is hydraulic actuating mechanism, a hydraulic pump station, a hydraulic control system, a hydraulic pipeline and a hydraulic electrical control system. The hydraulic system of the self-propulsion steel rake grab dredger is reasonable in structure, good in working performance, safe during usage and easy to operate.
Description
Technical field
The present invention relates to a kind of from boat steel rake grab boat hydraulic system.
Background technology
Existing exist certain defect, inefficiency from boat steel rake grab boat hydraulic system in service behaviour, form of structure etc., needs to be improved further.
Summary of the invention
The object of the present invention is to provide a kind of steel of boat certainly rake grab boat hydraulic system rational in infrastructure of favorable working performance.
Technical solution of the present invention is:
A kind of from boat steel rake grab boat hydraulic system, comprise hydraulic actuating mechanism, hydraulic power unit, hydraulic control system, fluid pressure line, hydraulic electric control system, it is characterized in that:
(1) hydraulic actuating mechanism comprises spud gantry lifting device four cover, trolley running oil cylinder two, steel rake hauling winch one, four, windlass capstan winch;
(2) system dynamic pump group configuration is as follows:
Often overlap lifting gear and join the electric-motor pump group fuel feeding in parallel of 2 22KW to hoist cylinder, when separate unit runs, the speed of service reduces by half, and namely meets an urgent need each other for two, and improve the reliability of system, full ship is totally 8 electric-motor pump groups;
Full ship adjusts two 4KW electric-motor pump groups to be plugging pin oil cylinder fuel feeding, and open one for one or two and with meeting an urgent need each other depending on actual condition, the feature because of plugging pin oil cylinder is that running time is short, moment flow greatly, in pump discharge oil circuit, therefore establish the accumulator of 2 volume 40L;
The lifting pumping source of 1# lifting gear is held concurrently for 1# chassis oil cylinder; the lifting pump of 2# lifting gear is held concurrently for 2# chassis oil cylinder; the lifting pumping source of 3# lifting gear is held concurrently for hauling winch, and the lifting pumping source of 4# lifting gear is held concurrently for 4 windlass capstan winches, and plugging pin oil cylinder pumping source is simultaneously for 8 main pump variablees provide power oil sources;
8 main oil pumps select constant voltage, invariable power proportional variable pump, wherein the input signal of rate variable is set as that two fixed values realize low pressure huge discharge and high-pressure small-displacement two kinds of working condition requirements, the electromagnetism overflow relief valve of fuel pump outlet is also set as height two grades of operating pressures, and initial setting data are 125ml/r-6MPa or 30ml/r-27.5MPa; Motor in synchrony rotating speed 1500rpm;
The constant pressure variable displacement pump of 16ml/r selected by consignment oil cylinder, and reduce the heating of system, variable pressure is set as 8.5MPa;
Back pressure one way valve is established, return filter and cooler in total return line of pumping plant;
(3) hydraulic control system
The control mode of chassis oil cylinder, hauling winch, windlass capstan winch is comparatively simple, and wherein four windlass capstan winches adopt the other hand-operated valve of machine to control, and chassis oil cylinder and hauling winch adopt electric hydraulic control;
The control of lifting gear:
Total hoist cylinder four in every covering device, and four oil need synchronization lifting, from the structure of lifting gear, four hoist cylinders are actually mechanism synchronously, and therefore four oil cylinders can in parallelly adopt 1 way reversing valve to control to commutate; Due to guide pile decline and hull to decline for oil cylinder be that two different oil pockets control by back-pressure balance, therefore, all need one-way balance valve is set in the total oil circuit of A, B of reversal valve and make back pressure control and hydraulic locking;
Mounting means due to hoist cylinder is two oscillating bearing, the swing of certain amplitude is there is when oil cylinder runs, therefore the AB hydraulic fluid port of every root oil cylinder is connected with house steward AB and need uses high-pressure hose transition, consider the safety of system, therefore every root oil cylinder all needs to arrange hydraulic lock, there is the back pressure of one-way balance valve in the oil return of this hydraulic lock, so the product that this hydraulic lock need adopt external control to leak;
In the flexible pipe anti-explosion safety item of hoist cylinder AB hydraulic fluid port, also have another kind of scheme available, all establish fixing damping hole at the A mouth of four hoist cylinders and B mouth exactly, cancel the hydraulic lock on single oil cylinder; Work under such four oil cylinders are in parallel connection all the time, even if explosion appears in a certain flexible pipe, hull is the steady stroke that declines lentamente at most just;
Upper and lower two groups of totally four plugging pin oil cylinder are had in lifting gear, often organize two simultaneous retractables in parallel, for guaranteeing the safety of system, two group oil cylinders adopt " P " type reversal valve to control, such reset condition two groups of latches are all in extended position, only have one group of latch to extract during commutation, therefore have at least one group of latch to be in the state of stretching out under any operating mode all the time, ensure that the safety of system;
(4) fluid pressure line and hydraulic oil
Full ship fluid pressure line is made by hydraulic system principle figure requirement by shipyard, for improving the net synchronization capability of four oil cylinders, house steward AB and the arm of four oil cylinders need to adopt " Central Symmetry " stringing to be connected, make the hydraulic fluid port of every root oil cylinder identical to the oil channel structures of house steward, effectively can improve the synchronous of oil cylinder further like this; Adopt No. 68 antiwear hydraulic oils, oil cleanliness is NAS8 ~ 9 grade;
(5) hydraulic electric control system
Full ship hydraulic electric control system is made up of other control cabinet four part of Electric Machine at Pumping Station control cabinet, PLC centralized-control box, driver's cabin centralized control panel and stake, and each several part establishes following functions:
The automatically controlled control cabinet of pumping plant: the star triangle on off control of 8 22KW, and directly starting of 2 4KW motors controls, and establish the Remote Control Interface of driver's cabin, degree of protection IP22, be arranged in pumping plant cabin;
PLC control cabinet: PLC control cabinet realizes system-wide accurate control, alarm signal controls and interlocking, and power switch established by panel, and degree of protection is IP22, can be arranged in pumping plant cabin or drive indoor;
Driver's cabin centralized control panel comprises:
Control power switch; The remote control of motor is opened and is run instruction; Hydraulic system concentrates sound and light alarm; The operation oil pressure display of each pumping source; Level gauge; 2 cover chassis oil cylinders control and run instruction; 1 cover hauling winch controls and runs instruction; Main oil pump two kinds of mode enable switch; The display of hoist cylinder extension and contraction control, stroke, extreme position instruction, four cover lifting synchronizations of jacking up; Plugging pin oil cylinder is pulled pin and is controlled and snibbing position display; " audition ", " noise reduction " switch; Running status and alarm indication adopt HMI display;
The other control cabinet of stake
Often overlapping guide pile side sets a set of control cabinet degree of protection as IP56, if control content below
Control changeover switch; Two kinds of operating modes are run and are selected; Hoist cylinder extension and contraction control; Plugging pin oil cylinder extracts control and snibbing position display.
Oil cleanliness is NAS8 level.
Oil cleanliness is NAS9 level.
In cooler, cooling water flow is 20 ~ 30m
3/ h.
The present invention is rational in infrastructure, favorable working performance, use safety, easy to operate.
Below in conjunction with embodiment, the invention will be further described.
Detailed description of the invention
Embodiment 1:
A kind of from boat steel rake grab boat hydraulic system, comprise hydraulic actuating mechanism, hydraulic power unit, hydraulic control system, fluid pressure line, hydraulic electric control system, it is characterized in that:
(1) hydraulic actuating mechanism comprises spud gantry lifting device four cover, trolley running oil cylinder two, steel rake hauling winch one, four, windlass capstan winch;
(2) system dynamic pump group configuration is as follows:
Often overlap lifting gear and join the electric-motor pump group fuel feeding in parallel of 2 22KW to hoist cylinder, when separate unit runs, the speed of service reduces by half, and namely meets an urgent need each other for two, and improve the reliability of system, full ship is totally 8 electric-motor pump groups;
Full ship adjusts two 4KW electric-motor pump groups to be plugging pin oil cylinder fuel feeding, and open one for one or two and with meeting an urgent need each other depending on actual condition, the feature because of plugging pin oil cylinder is that running time is short, moment flow greatly, in pump discharge oil circuit, therefore establish the accumulator of 2 volume 40L;
The lifting pumping source of 1# lifting gear is held concurrently for 1# chassis oil cylinder; the lifting pump of 2# lifting gear is held concurrently for 2# chassis oil cylinder; the lifting pumping source of 3# lifting gear is held concurrently for hauling winch, and the lifting pumping source of 4# lifting gear is held concurrently for 4 windlass capstan winches, and plugging pin oil cylinder pumping source is simultaneously for 8 main pump variablees provide power oil sources;
8 main oil pumps select constant voltage, invariable power proportional variable pump, wherein the input signal of rate variable is set as that two fixed values realize low pressure huge discharge and high-pressure small-displacement two kinds of working condition requirements, the electromagnetism overflow relief valve of fuel pump outlet is also set as height two grades of operating pressures, and initial setting data are 125ml/r-6MPa or 30ml/r-27.5MPa; Motor in synchrony rotating speed 1500rpm;
The constant pressure variable displacement pump of 16ml/r selected by consignment oil cylinder, and reduce the heating of system, variable pressure is set as 8.5MPa;
Back pressure one way valve is established, return filter and cooler in total return line of pumping plant;
(3) hydraulic control system
The control mode of chassis oil cylinder, hauling winch, windlass capstan winch is comparatively simple, and wherein four windlass capstan winches adopt the other hand-operated valve of machine to control, and chassis oil cylinder and hauling winch adopt electric hydraulic control;
The control of lifting gear:
Total hoist cylinder four in every covering device, and four oil need synchronization lifting, from the structure of lifting gear, four hoist cylinders are actually mechanism synchronously, and therefore four oil cylinders can in parallelly adopt 1 way reversing valve to control to commutate; Due to guide pile decline and hull to decline for oil cylinder be that two different oil pockets control by back-pressure balance, therefore, all need one-way balance valve is set in the total oil circuit of A, B of reversal valve and make back pressure control and hydraulic locking;
Mounting means due to hoist cylinder is two oscillating bearing, the swing of certain amplitude is there is when oil cylinder runs, therefore the AB hydraulic fluid port of every root oil cylinder is connected with house steward AB and need uses high-pressure hose transition, consider the safety of system, therefore every root oil cylinder all needs to arrange hydraulic lock, there is the back pressure of one-way balance valve in the oil return of this hydraulic lock, so the product that this hydraulic lock need adopt external control to leak;
In the flexible pipe anti-explosion safety item of hoist cylinder AB hydraulic fluid port, also have another kind of scheme available, all establish fixing damping hole at the A mouth of four hoist cylinders and B mouth exactly, cancel the hydraulic lock on single oil cylinder; Work under such four oil cylinders are in parallel connection all the time, even if explosion appears in a certain flexible pipe, hull is the steady stroke that declines lentamente at most just;
Upper and lower two groups of totally four plugging pin oil cylinder are had in lifting gear, often organize two simultaneous retractables in parallel, for guaranteeing the safety of system, two group oil cylinders adopt " P " type reversal valve to control, such reset condition two groups of latches are all in extended position, only have one group of latch to extract during commutation, therefore have at least one group of latch to be in the state of stretching out under any operating mode all the time, ensure that the safety of system;
(4) fluid pressure line and hydraulic oil
Full ship fluid pressure line is made by hydraulic system principle figure requirement by shipyard, for improving the net synchronization capability of four oil cylinders, house steward AB and the arm of four oil cylinders need to adopt " Central Symmetry " stringing to be connected, make the hydraulic fluid port of every root oil cylinder identical to the oil channel structures of house steward, effectively can improve the synchronous of oil cylinder further like this; Adopt No. 68 antiwear hydraulic oils, oil cleanliness is NAS8 ~ 9 grade;
(5) hydraulic electric control system
Full ship hydraulic electric control system is made up of other control cabinet four part of Electric Machine at Pumping Station control cabinet, PLC centralized-control box, driver's cabin centralized control panel and stake, and each several part establishes following functions:
The automatically controlled control cabinet of pumping plant: the star triangle on off control of 8 22KW, and directly starting of 2 4KW motors controls, and establish the Remote Control Interface of driver's cabin, degree of protection IP22, be arranged in pumping plant cabin;
PLC control cabinet: PLC control cabinet realizes system-wide accurate control, alarm signal controls and interlocking, and power switch established by panel, and degree of protection is IP22, can be arranged in pumping plant cabin or drive indoor;
Driver's cabin centralized control panel comprises:
Control power switch; The remote control of motor is opened and is run instruction; Hydraulic system concentrates sound and light alarm; The operation oil pressure display of each pumping source; Level gauge; 2 cover chassis oil cylinders control and run instruction; 1 cover hauling winch controls and runs instruction; Main oil pump two kinds of mode enable switch; The display of hoist cylinder extension and contraction control, stroke, extreme position instruction, four cover lifting synchronizations of jacking up; Plugging pin oil cylinder is pulled pin and is controlled and snibbing position display; " audition ", " noise reduction " switch; Running status and alarm indication adopt HMI display;
The other control cabinet of stake
Often overlapping guide pile side sets a set of control cabinet degree of protection as IP56, if control content below
Control changeover switch; Two kinds of operating modes are run and are selected; Hoist cylinder extension and contraction control; Plugging pin oil cylinder extracts control and snibbing position display.
Oil cleanliness is NAS8 level.
In cooler, cooling water flow is 30m
3/ h.
Embodiment 2:
A kind of from boat steel rake grab boat hydraulic system, comprise hydraulic actuating mechanism, hydraulic power unit, hydraulic control system, fluid pressure line, hydraulic electric control system, it is characterized in that:
(1) hydraulic actuating mechanism comprises spud gantry lifting device four cover, trolley running oil cylinder two, steel rake hauling winch one, four, windlass capstan winch;
(2) system dynamic pump group configuration is as follows:
Often overlap lifting gear and join the electric-motor pump group fuel feeding in parallel of 2 22KW to hoist cylinder, when separate unit runs, the speed of service reduces by half, and namely meets an urgent need each other for two, and improve the reliability of system, full ship is totally 8 electric-motor pump groups;
Full ship adjusts two 4KW electric-motor pump groups to be plugging pin oil cylinder fuel feeding, and open one for one or two and with meeting an urgent need each other depending on actual condition, the feature because of plugging pin oil cylinder is that running time is short, moment flow greatly, in pump discharge oil circuit, therefore establish the accumulator of 2 volume 40L;
The lifting pumping source of 1# lifting gear is held concurrently for 1# chassis oil cylinder; the lifting pump of 2# lifting gear is held concurrently for 2# chassis oil cylinder; the lifting pumping source of 3# lifting gear is held concurrently for hauling winch, and the lifting pumping source of 4# lifting gear is held concurrently for 4 windlass capstan winches, and plugging pin oil cylinder pumping source is simultaneously for 8 main pump variablees provide power oil sources;
8 main oil pumps select constant voltage, invariable power proportional variable pump, wherein the input signal of rate variable is set as that two fixed values realize low pressure huge discharge and high-pressure small-displacement two kinds of working condition requirements, the electromagnetism overflow relief valve of fuel pump outlet is also set as height two grades of operating pressures, and initial setting data are 125ml/r-6MPa or 30ml/r-27.5MPa; Motor in synchrony rotating speed 1500rpm;
The constant pressure variable displacement pump of 16ml/r selected by consignment oil cylinder, and reduce the heating of system, variable pressure is set as 8.5MPa;
Back pressure one way valve is established, return filter and cooler in total return line of pumping plant;
(3) hydraulic control system
The control mode of chassis oil cylinder, hauling winch, windlass capstan winch is comparatively simple, and wherein four windlass capstan winches adopt the other hand-operated valve of machine to control, and chassis oil cylinder and hauling winch adopt electric hydraulic control;
The control of lifting gear:
Total hoist cylinder four in every covering device, and four oil need synchronization lifting, from the structure of lifting gear, four hoist cylinders are actually mechanism synchronously, and therefore four oil cylinders can in parallelly adopt 1 way reversing valve to control to commutate; Due to guide pile decline and hull to decline for oil cylinder be that two different oil pockets control by back-pressure balance, therefore, all need one-way balance valve is set in the total oil circuit of A, B of reversal valve and make back pressure control and hydraulic locking;
Mounting means due to hoist cylinder is two oscillating bearing, the swing of certain amplitude is there is when oil cylinder runs, therefore the AB hydraulic fluid port of every root oil cylinder is connected with house steward AB and need uses high-pressure hose transition, consider the safety of system, therefore every root oil cylinder all needs to arrange hydraulic lock, there is the back pressure of one-way balance valve in the oil return of this hydraulic lock, so the product that this hydraulic lock need adopt external control to leak;
In the flexible pipe anti-explosion safety item of hoist cylinder AB hydraulic fluid port, also have another kind of scheme available, all establish fixing damping hole at the A mouth of four hoist cylinders and B mouth exactly, cancel the hydraulic lock on single oil cylinder; Work under such four oil cylinders are in parallel connection all the time, even if explosion appears in a certain flexible pipe, hull is the steady stroke that declines lentamente at most just;
Upper and lower two groups of totally four plugging pin oil cylinder are had in lifting gear, often organize two simultaneous retractables in parallel, for guaranteeing the safety of system, two group oil cylinders adopt " P " type reversal valve to control, such reset condition two groups of latches are all in extended position, only have one group of latch to extract during commutation, therefore have at least one group of latch to be in the state of stretching out under any operating mode all the time, ensure that the safety of system;
(4) fluid pressure line and hydraulic oil
Full ship fluid pressure line is made by hydraulic system principle figure requirement by shipyard, for improving the net synchronization capability of four oil cylinders, house steward AB and the arm of four oil cylinders need to adopt " Central Symmetry " stringing to be connected, make the hydraulic fluid port of every root oil cylinder identical to the oil channel structures of house steward, effectively can improve the synchronous of oil cylinder further like this; Adopt No. 68 antiwear hydraulic oils, oil cleanliness is NAS8 ~ 9 grade;
(5) hydraulic electric control system
Full ship hydraulic electric control system is made up of other control cabinet four part of Electric Machine at Pumping Station control cabinet, PLC centralized-control box, driver's cabin centralized control panel and stake, and each several part establishes following functions:
The automatically controlled control cabinet of pumping plant: the star triangle on off control of 8 22KW, and directly starting of 2 4KW motors controls, and establish the Remote Control Interface of driver's cabin, degree of protection IP22, be arranged in pumping plant cabin;
PLC control cabinet: PLC control cabinet realizes system-wide accurate control, alarm signal controls and interlocking, and power switch established by panel, and degree of protection is IP22, can be arranged in pumping plant cabin or drive indoor;
Driver's cabin centralized control panel comprises:
Control power switch; The remote control of motor is opened and is run instruction; Hydraulic system concentrates sound and light alarm; The operation oil pressure display of each pumping source; Level gauge; 2 cover chassis oil cylinders control and run instruction; 1 cover hauling winch controls and runs instruction; Main oil pump two kinds of mode enable switch; The display of hoist cylinder extension and contraction control, stroke, extreme position instruction, four cover lifting synchronizations of jacking up; Plugging pin oil cylinder is pulled pin and is controlled and snibbing position display; " audition ", " noise reduction " switch; Running status and alarm indication adopt HMI display;
The other control cabinet of stake
Often overlapping guide pile side sets a set of control cabinet degree of protection as IP56, if control content below
Control changeover switch; Two kinds of operating modes are run and are selected; Hoist cylinder extension and contraction control; Plugging pin oil cylinder extracts control and snibbing position display.
Oil cleanliness is NAS9 level.
In cooler, cooling water flow is 25m
3/ h.
Embodiment 3:
A kind of from boat steel rake grab boat hydraulic system, comprise hydraulic actuating mechanism, hydraulic power unit, hydraulic control system, fluid pressure line, hydraulic electric control system, it is characterized in that:
(1) hydraulic actuating mechanism comprises spud gantry lifting device four cover, trolley running oil cylinder two, steel rake hauling winch one, four, windlass capstan winch;
(2) system dynamic pump group configuration is as follows:
Often overlap lifting gear and join the electric-motor pump group fuel feeding in parallel of 2 22KW to hoist cylinder, when separate unit runs, the speed of service reduces by half, and namely meets an urgent need each other for two, and improve the reliability of system, full ship is totally 8 electric-motor pump groups;
Full ship adjusts two 4KW electric-motor pump groups to be plugging pin oil cylinder fuel feeding, and open one for one or two and with meeting an urgent need each other depending on actual condition, the feature because of plugging pin oil cylinder is that running time is short, moment flow greatly, in pump discharge oil circuit, therefore establish the accumulator of 2 volume 40L;
The lifting pumping source of 1# lifting gear is held concurrently for 1# chassis oil cylinder; the lifting pump of 2# lifting gear is held concurrently for 2# chassis oil cylinder; the lifting pumping source of 3# lifting gear is held concurrently for hauling winch, and the lifting pumping source of 4# lifting gear is held concurrently for 4 windlass capstan winches, and plugging pin oil cylinder pumping source is simultaneously for 8 main pump variablees provide power oil sources;
8 main oil pumps select constant voltage, invariable power proportional variable pump, wherein the input signal of rate variable is set as that two fixed values realize low pressure huge discharge and high-pressure small-displacement two kinds of working condition requirements, the electromagnetism overflow relief valve of fuel pump outlet is also set as height two grades of operating pressures, and initial setting data are 125ml/r-6MPa or 30ml/r-27.5MPa; Motor in synchrony rotating speed 1500rpm;
The constant pressure variable displacement pump of 16ml/r selected by consignment oil cylinder, and reduce the heating of system, variable pressure is set as 8.5MPa;
Back pressure one way valve is established, return filter and cooler in total return line of pumping plant;
(3) hydraulic control system
The control mode of chassis oil cylinder, hauling winch, windlass capstan winch is comparatively simple, and wherein four windlass capstan winches adopt the other hand-operated valve of machine to control, and chassis oil cylinder and hauling winch adopt electric hydraulic control;
The control of lifting gear:
Total hoist cylinder four in every covering device, and four oil need synchronization lifting, from the structure of lifting gear, four hoist cylinders are actually mechanism synchronously, and therefore four oil cylinders can in parallelly adopt 1 way reversing valve to control to commutate; Due to guide pile decline and hull to decline for oil cylinder be that two different oil pockets control by back-pressure balance, therefore, all need one-way balance valve is set in the total oil circuit of A, B of reversal valve and make back pressure control and hydraulic locking;
Mounting means due to hoist cylinder is two oscillating bearing, the swing of certain amplitude is there is when oil cylinder runs, therefore the AB hydraulic fluid port of every root oil cylinder is connected with house steward AB and need uses high-pressure hose transition, consider the safety of system, therefore every root oil cylinder all needs to arrange hydraulic lock, there is the back pressure of one-way balance valve in the oil return of this hydraulic lock, so the product that this hydraulic lock need adopt external control to leak;
In the flexible pipe anti-explosion safety item of hoist cylinder AB hydraulic fluid port, also have another kind of scheme available, all establish fixing damping hole at the A mouth of four hoist cylinders and B mouth exactly, cancel the hydraulic lock on single oil cylinder; Work under such four oil cylinders are in parallel connection all the time, even if explosion appears in a certain flexible pipe, hull is the steady stroke that declines lentamente at most just;
Upper and lower two groups of totally four plugging pin oil cylinder are had in lifting gear, often organize two simultaneous retractables in parallel, for guaranteeing the safety of system, two group oil cylinders adopt " P " type reversal valve to control, such reset condition two groups of latches are all in extended position, only have one group of latch to extract during commutation, therefore have at least one group of latch to be in the state of stretching out under any operating mode all the time, ensure that the safety of system;
(4) fluid pressure line and hydraulic oil
Full ship fluid pressure line is made by hydraulic system principle figure requirement by shipyard, for improving the net synchronization capability of four oil cylinders, house steward AB and the arm of four oil cylinders need to adopt " Central Symmetry " stringing to be connected, make the hydraulic fluid port of every root oil cylinder identical to the oil channel structures of house steward, effectively can improve the synchronous of oil cylinder further like this; Adopt No. 68 antiwear hydraulic oils, oil cleanliness is NAS8 ~ 9 grade;
(5) hydraulic electric control system
Full ship hydraulic electric control system is made up of other control cabinet four part of Electric Machine at Pumping Station control cabinet, PLC centralized-control box, driver's cabin centralized control panel and stake, and each several part establishes following functions:
The automatically controlled control cabinet of pumping plant: the star triangle on off control of 8 22KW, and directly starting of 2 4KW motors controls, and establish the Remote Control Interface of driver's cabin, degree of protection IP22, be arranged in pumping plant cabin;
PLC control cabinet: PLC control cabinet realizes system-wide accurate control, alarm signal controls and interlocking, and power switch established by panel, and degree of protection is IP22, can be arranged in pumping plant cabin or drive indoor;
Driver's cabin centralized control panel comprises:
Control power switch; The remote control of motor is opened and is run instruction; Hydraulic system concentrates sound and light alarm; The operation oil pressure display of each pumping source; Level gauge; 2 cover chassis oil cylinders control and run instruction; 1 cover hauling winch controls and runs instruction; Main oil pump two kinds of mode enable switch; The display of hoist cylinder extension and contraction control, stroke, extreme position instruction, four cover lifting synchronizations of jacking up; Plugging pin oil cylinder is pulled pin and is controlled and snibbing position display; " audition ", " noise reduction " switch; Running status and alarm indication adopt HMI display;
The other control cabinet of stake
Often overlapping guide pile side sets a set of control cabinet degree of protection as IP56, if control content below
Control changeover switch; Two kinds of operating modes are run and are selected; Hoist cylinder extension and contraction control; Plugging pin oil cylinder extracts control and snibbing position display.
Oil cleanliness is NAS8 level.
In cooler, cooling water flow is 20m
3/ h.
Claims (4)
1. the steel of a boat certainly rake grab boat hydraulic system rational in infrastructure, comprises hydraulic actuating mechanism, hydraulic power unit, hydraulic control system, fluid pressure line, hydraulic electric control system, it is characterized in that:
(1) hydraulic actuating mechanism comprises spud gantry lifting device four cover, trolley running oil cylinder two, steel rake hauling winch one, four, windlass capstan winch;
(2) system dynamic pump group configuration is as follows:
Often overlap lifting gear and join the electric-motor pump group fuel feeding in parallel of 2 22KW to hoist cylinder, when separate unit runs, the speed of service reduces by half, and namely meets an urgent need each other for two, and improve the reliability of system, full ship is totally 8 electric-motor pump groups;
Full ship adjusts two 4KW electric-motor pump groups to be plugging pin oil cylinder fuel feeding, and open one for one or two and with meeting an urgent need each other depending on actual condition, the feature because of plugging pin oil cylinder is that running time is short, moment flow greatly, in pump discharge oil circuit, therefore establish the accumulator of 2 volume 40L;
The lifting pumping source of 1# lifting gear is held concurrently for 1# chassis oil cylinder; the lifting pump of 2# lifting gear is held concurrently for 2# chassis oil cylinder; the lifting pumping source of 3# lifting gear is held concurrently for hauling winch, and the lifting pumping source of 4# lifting gear is held concurrently for 4 windlass capstan winches, and plugging pin oil cylinder pumping source is simultaneously for 8 main pump variablees provide power oil sources;
8 main oil pumps select constant voltage, invariable power proportional variable pump, wherein the input signal of rate variable is set as that two fixed values realize low pressure huge discharge and high-pressure small-displacement two kinds of working condition requirements, the electromagnetism overflow relief valve of fuel pump outlet is also set as height two grades of operating pressures, and initial setting data are 125ml/r-6MPa or 30ml/r-27.5MPa; Motor in synchrony rotating speed 1500rpm;
The constant pressure variable displacement pump of 16ml/r selected by consignment oil cylinder, and reduce the heating of system, variable pressure is set as 8.5MPa;
Back pressure one way valve is established, return filter and cooler in total return line of pumping plant.
2. the steel of boat certainly rake grab boat hydraulic system rational in infrastructure according to claim 1, is characterized in that: oil cleanliness is NAS8 level.
3. the steel of boat certainly rake grab boat hydraulic system rational in infrastructure according to claim 1, is characterized in that: oil cleanliness is NAS9 level.
4. the steel of boat certainly rake grab boat hydraulic system rational in infrastructure according to claim 1, is characterized in that: in cooler, cooling water flow is 20 ~ 30m
3/ 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 |
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| Publication Number | Publication Date |
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| CN105256857A true CN105256857A (en) | 2016-01-20 |
| CN105256857B CN105256857B (en) | 2017-08-22 |
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|---|---|---|---|
| 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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| CN202031075U (en) * | 2011-03-21 | 2011-11-09 | 大连船舶重工集团设计研究所有限公司 | Lifting equipment for vessel |
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| CN204401677U (en) * | 2014-11-11 | 2015-06-17 | 浙江省疏浚工程有限公司 | A kind of Dredging ship |
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2015
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| CN105256857B (en) | 2017-08-22 |
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