CN105257610A - Easy-to-operate hydraulic system of self-propulsion steel rake grab dredger - Google Patents
Easy-to-operate hydraulic system of self-propulsion steel rake grab dredger Download PDFInfo
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Abstract
The invention discloses an easy-to-operate hydraulic system of a self-propulsion steel rake grab dredger. The easy-to-operate hydraulic system of the self-propulsion steel rake grab dredger comprises a 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 technique
Existing exist certain defect, inefficiency from boat steel rake grab boat hydraulic system in service behaviour, structural type etc., needs to be improved further.
Summary of the invention
The object of the present invention is to provide the easy-operating from boat steel rake grab boat hydraulic system of a kind of favorable working performance.
Technical solution of the present invention is:
A kind of from boat steel rake grab boat hydraulic system, comprise hydraulic actuator, hydraulic power unit, hydraulic control system, hydraulic pipe line, hydraulic electric control system, it is characterized in that:
(1) hydraulic actuator comprises spud gantry lifting device four cover, chassis walking oil cylinder two, steel rake hauling winch one, four, windlass capstan winch;
(2) system dynamic pump group configuration is as follows:
Often overlap lowering or hoisting gear and join the electric-motor pump group fuel feeding in parallel of 2 22KW to hoist cylinder, when separate unit runs, motion speed 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 conditions, the feature because of plugging pin oil cylinder is that working 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# lowering or hoisting gear is held concurrently for 1# chassis oil cylinder; the lifting pump of 2# lowering or hoisting gear is held concurrently for 2# chassis oil cylinder; the lifting pumping source of 3# lowering or hoisting gear is held concurrently for hauling winch, and the lifting pumping source of 4# lowering or hoisting 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 working pressures, and preliminary settlement 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 manually operated valve of machine to control, and chassis oil cylinder and hauling winch adopt electric hydraulic control;
The control of lowering or hoisting gear:
Total hoist cylinder four in every covering device, and four oil need synchronization lifting, from the structure of lowering or hoisting 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 dowel 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 selector valve and make back pressure control and hydraulic lock;
Mounting type due to hoist cylinder is two joint shaft 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 Security 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 lowering or hoisting gear, often organize two simultaneous retractables in parallel, for guaranteeing the Security of system, two group oil cylinders adopt " P " type selector 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 Security of system;
(4) hydraulic pipe line and hydraulic oil
Full ship hydraulic pipe 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 box four part of Electric Machine at Pumping Station control box, PLC centralized-control box, operator cabin centralized control panel and stake, and each several part establishes following functions:
The automatically controlled control box 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 operator cabin, security level 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 security level is IP22, can be arranged in pumping plant cabin or drive indoor;
Operator cabin centralized control panel comprises:
Control power switch; The remote control of motor is opened and is run instruction; Hydraulic system concentrates acoustooptic alarm; The operation oil pressure display of each pumping source; Leveling instrument; 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, limit 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 state and alarm indication adopt HMI display;
The other control box of stake
Often overlapping dowel pile side sets a set of control box security level as IP56, if control content below
Control throw over 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.
Embodiment
Embodiment 1:
A kind of from boat steel rake grab boat hydraulic system, comprise hydraulic actuator, hydraulic power unit, hydraulic control system, hydraulic pipe line, hydraulic electric control system, it is characterized in that:
(1) hydraulic actuator comprises spud gantry lifting device four cover, chassis walking oil cylinder two, steel rake hauling winch one, four, windlass capstan winch;
(2) system dynamic pump group configuration is as follows:
Often overlap lowering or hoisting gear and join the electric-motor pump group fuel feeding in parallel of 2 22KW to hoist cylinder, when separate unit runs, motion speed 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 conditions, the feature because of plugging pin oil cylinder is that working 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# lowering or hoisting gear is held concurrently for 1# chassis oil cylinder; the lifting pump of 2# lowering or hoisting gear is held concurrently for 2# chassis oil cylinder; the lifting pumping source of 3# lowering or hoisting gear is held concurrently for hauling winch, and the lifting pumping source of 4# lowering or hoisting 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 working pressures, and preliminary settlement 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 manually operated valve of machine to control, and chassis oil cylinder and hauling winch adopt electric hydraulic control;
The control of lowering or hoisting gear:
Total hoist cylinder four in every covering device, and four oil need synchronization lifting, from the structure of lowering or hoisting 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 dowel 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 selector valve and make back pressure control and hydraulic lock;
Mounting type due to hoist cylinder is two joint shaft 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 Security 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 lowering or hoisting gear, often organize two simultaneous retractables in parallel, for guaranteeing the Security of system, two group oil cylinders adopt " P " type selector 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 Security of system;
(4) hydraulic pipe line and hydraulic oil
Full ship hydraulic pipe 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 box four part of Electric Machine at Pumping Station control box, PLC centralized-control box, operator cabin centralized control panel and stake, and each several part establishes following functions:
The automatically controlled control box 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 operator cabin, security level 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 security level is IP22, can be arranged in pumping plant cabin or drive indoor;
Operator cabin centralized control panel comprises:
Control power switch; The remote control of motor is opened and is run instruction; Hydraulic system concentrates acoustooptic alarm; The operation oil pressure display of each pumping source; Leveling instrument; 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, limit 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 state and alarm indication adopt HMI display;
The other control box of stake
Often overlapping dowel pile side sets a set of control box security level as IP56, if control content below
Control throw over 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 actuator, hydraulic power unit, hydraulic control system, hydraulic pipe line, hydraulic electric control system, it is characterized in that:
(1) hydraulic actuator comprises spud gantry lifting device four cover, chassis walking oil cylinder two, steel rake hauling winch one, four, windlass capstan winch;
(2) system dynamic pump group configuration is as follows:
Often overlap lowering or hoisting gear and join the electric-motor pump group fuel feeding in parallel of 2 22KW to hoist cylinder, when separate unit runs, motion speed 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 conditions, the feature because of plugging pin oil cylinder is that working 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# lowering or hoisting gear is held concurrently for 1# chassis oil cylinder; the lifting pump of 2# lowering or hoisting gear is held concurrently for 2# chassis oil cylinder; the lifting pumping source of 3# lowering or hoisting gear is held concurrently for hauling winch, and the lifting pumping source of 4# lowering or hoisting 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 working pressures, and preliminary settlement 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 manually operated valve of machine to control, and chassis oil cylinder and hauling winch adopt electric hydraulic control;
The control of lowering or hoisting gear:
Total hoist cylinder four in every covering device, and four oil need synchronization lifting, from the structure of lowering or hoisting 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 dowel 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 selector valve and make back pressure control and hydraulic lock;
Mounting type due to hoist cylinder is two joint shaft 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 Security 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 lowering or hoisting gear, often organize two simultaneous retractables in parallel, for guaranteeing the Security of system, two group oil cylinders adopt " P " type selector 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 Security of system;
(4) hydraulic pipe line and hydraulic oil
Full ship hydraulic pipe 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 box four part of Electric Machine at Pumping Station control box, PLC centralized-control box, operator cabin centralized control panel and stake, and each several part establishes following functions:
The automatically controlled control box 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 operator cabin, security level 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 security level is IP22, can be arranged in pumping plant cabin or drive indoor;
Operator cabin centralized control panel comprises:
Control power switch; The remote control of motor is opened and is run instruction; Hydraulic system concentrates acoustooptic alarm; The operation oil pressure display of each pumping source; Leveling instrument; 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, limit 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 state and alarm indication adopt HMI display;
The other control box of stake
Often overlapping dowel pile side sets a set of control box security level as IP56, if control content below
Control throw over 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 actuator, hydraulic power unit, hydraulic control system, hydraulic pipe line, hydraulic electric control system, it is characterized in that:
(1) hydraulic actuator comprises spud gantry lifting device four cover, chassis walking oil cylinder two, steel rake hauling winch one, four, windlass capstan winch;
(2) system dynamic pump group configuration is as follows:
Often overlap lowering or hoisting gear and join the electric-motor pump group fuel feeding in parallel of 2 22KW to hoist cylinder, when separate unit runs, motion speed 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 conditions, the feature because of plugging pin oil cylinder is that working 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# lowering or hoisting gear is held concurrently for 1# chassis oil cylinder; the lifting pump of 2# lowering or hoisting gear is held concurrently for 2# chassis oil cylinder; the lifting pumping source of 3# lowering or hoisting gear is held concurrently for hauling winch, and the lifting pumping source of 4# lowering or hoisting 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 working pressures, and preliminary settlement 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 manually operated valve of machine to control, and chassis oil cylinder and hauling winch adopt electric hydraulic control;
The control of lowering or hoisting gear:
Total hoist cylinder four in every covering device, and four oil need synchronization lifting, from the structure of lowering or hoisting 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 dowel 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 selector valve and make back pressure control and hydraulic lock;
Mounting type due to hoist cylinder is two joint shaft 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 Security 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 lowering or hoisting gear, often organize two simultaneous retractables in parallel, for guaranteeing the Security of system, two group oil cylinders adopt " P " type selector 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 Security of system;
(4) hydraulic pipe line and hydraulic oil
Full ship hydraulic pipe 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 box four part of Electric Machine at Pumping Station control box, PLC centralized-control box, operator cabin centralized control panel and stake, and each several part establishes following functions:
The automatically controlled control box 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 operator cabin, security level 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 security level is IP22, can be arranged in pumping plant cabin or drive indoor;
Operator cabin centralized control panel comprises:
Control power switch; The remote control of motor is opened and is run instruction; Hydraulic system concentrates acoustooptic alarm; The operation oil pressure display of each pumping source; Leveling instrument; 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, limit 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 state and alarm indication adopt HMI display;
The other control box of stake
Often overlapping dowel pile side sets a set of control box security level as IP56, if control content below
Control throw over 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. easy-operating from a boat steel rake grab boat hydraulic system, comprise hydraulic actuator, hydraulic power unit, hydraulic control system, hydraulic pipe line, hydraulic electric control system, it is characterized in that:
(1) hydraulic actuator comprises spud gantry lifting device four cover, chassis walking oil cylinder two, steel rake hauling winch one, four, windlass capstan winch;
(2) 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 manually operated valve of machine to control, and chassis oil cylinder and hauling winch adopt electric hydraulic control;
The control of lowering or hoisting gear:
Total hoist cylinder four in every covering device, and four oil need synchronization lifting, from the structure of lowering or hoisting 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 dowel 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 selector valve and make back pressure control and hydraulic lock;
Mounting type due to hoist cylinder is two joint shaft 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 Security 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 lowering or hoisting gear, often organize two simultaneous retractables in parallel, for guaranteeing the Security of system, two group oil cylinders adopt " P " type selector 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 Security of system.
2. according to claim 1 easy-operating from boat steel rake grab boat hydraulic system, it is characterized in that: oil cleanliness is NAS8 level.
3. according to claim 1 easy-operating from boat steel rake grab boat hydraulic system, it is characterized in that: oil cleanliness is NAS9 level.
4. according to claim 1 easy-operating from boat steel rake grab boat hydraulic system, it is characterized in that: in cooler, cooling water flow is 20 ~ 30m
3/ h.
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| CN201510404787.2A CN105257610B (en) | 2015-07-13 | 2015-07-13 | The easy-operating steel rake grab boat hydraulic system of boat certainly |
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| CN201510404787.2A CN105257610B (en) | 2015-07-13 | 2015-07-13 | The easy-operating steel rake grab boat hydraulic system of boat certainly |
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| CN105257610B CN105257610B (en) | 2017-03-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672952A (en) * | 2016-04-14 | 2016-06-15 | 麦格瑞科技（北京）有限公司 | Intelligent non-beam hydraulic oil pumping technology and hydraulic oil pumping machine |
| CN108518387A (en) * | 2018-03-27 | 2018-09-11 | 上海朗畏机电科技有限公司 | A kind of hydraulic interlock control system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0256304B1 (en) * | 1986-07-18 | 1990-03-07 | Serge Vuistiner | Soil-working machine |
| JP2008274585A (en) * | 2007-04-26 | 2008-11-13 | Toa Harbor Works Co Ltd | Dredging support system |
| CN101811558A (en) * | 2010-03-05 | 2010-08-25 | 南通港闸船舶制造有限公司 | Dredger hydraulic system manufacturing and installation technology |
| CN102226346A (en) * | 2011-04-07 | 2011-10-26 | 上海交通大学 | Extrusion grab bucket for continuous desilting |
| CN102277887A (en) * | 2010-06-11 | 2011-12-14 | 鲁国庆 | Fully submerged dredge boat |
-
2015
- 2015-07-13 CN CN201510404787.2A patent/CN105257610B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0256304B1 (en) * | 1986-07-18 | 1990-03-07 | Serge Vuistiner | Soil-working machine |
| JP2008274585A (en) * | 2007-04-26 | 2008-11-13 | Toa Harbor Works Co Ltd | Dredging support system |
| CN101811558A (en) * | 2010-03-05 | 2010-08-25 | 南通港闸船舶制造有限公司 | Dredger hydraulic system manufacturing and installation technology |
| CN102277887A (en) * | 2010-06-11 | 2011-12-14 | 鲁国庆 | Fully submerged dredge boat |
| CN102226346A (en) * | 2011-04-07 | 2011-10-26 | 上海交通大学 | Extrusion grab bucket for continuous desilting |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672952A (en) * | 2016-04-14 | 2016-06-15 | 麦格瑞科技（北京）有限公司 | Intelligent non-beam hydraulic oil pumping technology and hydraulic oil pumping machine |
| CN108518387A (en) * | 2018-03-27 | 2018-09-11 | 上海朗畏机电科技有限公司 | A kind of hydraulic interlock control system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105257610B (en) | 2017-03-01 |
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