CN106882722A - Ocean winch electro-hydraulic brake system and control method based on Closed Hydraulic brake - Google Patents
Ocean winch electro-hydraulic brake system and control method based on Closed Hydraulic brake Download PDFInfo
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- CN106882722A CN106882722A CN201710243394.7A CN201710243394A CN106882722A CN 106882722 A CN106882722 A CN 106882722A CN 201710243394 A CN201710243394 A CN 201710243394A CN 106882722 A CN106882722 A CN 106882722A
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- switching valve
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/12—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with axial effect
- B66D5/14—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with axial effect embodying discs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/54—Safety gear
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/042—Controlling the temperature of the fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Braking Arrangements (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of ocean winch electro-hydraulic brake system based on Closed Hydraulic brake and control method, brakes includes fuel tank, hydraulic pump, threephase asynchronous, manual maintenance pump, suck-back prevents valve, brake hard inserts switching valve, normally closed floating type hydraulic brake, winding drum brake disc, drum speed encoder, accumulator, flexible braking inserting switching valve, flexible braking pressure regulator valve, manual maintenance controls valve, safety valve and PLC control devices；Simple structure of the present invention, occupy little space, safe, strong adaptability, energy consumption are low, reliability is high, and high efficiency and low wear under ocean winch different loads and operating mode can be braked.
Description
Technical field
The present invention relates to a kind of ocean brake system of winch, and in particular to a kind of ocean based on Closed Hydraulic brake twists
Car electro-hydraulic brake system and control method.
Background technology
Ocean winch is mainly used in the folding and unfolding of deep-ocean resource exploitation equipment, ROV systems, underwater towed system, etc..Enclosed
Brake normality is realized to drawworks brake by the elastic restoring force of spring or disc spring, safe, in ocean winch field
It is widely applied.Braking control system control performance quality directly affects the working life of braking energy consumption and brake,
Restriction ocean winch adaptability and security.
Patent 201510706460.0 discloses a kind of mining hydraulic winch electro-hydraulic proportional control system, its brakes
Including braking pumping plant, pilot operated directional control valve, solenoid directional control valve, electricity liquid ratio relief valve, amplifier, brake handle.Operation potentiometer
Type brake handle, the amplified device of output end of brake handle connects the control end of electricity liquid ratio relief valve, system can be carried out soft
Property braking.But during the Braking system, because of non-linear, parameter slow time-varying characteristic that hydraulic system itself has, easily cause weight
" downslide of hill start load instantaneous " under load and system pressure impact phenomenon when stopping, have a strong impact on system operation reliability and liquid
Pressure component life.Meanwhile, it is larger that the brakes builds volume exclusion.
Patent 201210160823.1 discloses a kind of for the drive brake fluid system of mining elevator and braking
Method, it makes brake cylinder declutch by after direct current relief valve pressure regulating with reference to master control solenoid directional control valve, when event occurs in master control set
During barrier, speed is interrogated by direct current overflow valve pressure oil input mode is switched into standby control device.When the pressure for needing adjustment brake cylinder
During force value, pressure regulation solenoid directional control valve is obtained in electrical communication, reaches the purpose that degree is fited between regulation brake cylinder and damper brake, and then
Control winch speed.It uses closed type brake, declutch work when system be chronically at overflow situation, high energy consumption, and hydraulic pressure
Oil temperature rises very fast, it is possible to cause system performance degradation.Meanwhile, brake pressure is by presetting, it is impossible to avoid different works
The drastically abrasion braking of condition and load, influences brake life.
Patent 201280006772.5 discloses a kind of electro-hydraulic system for vehicle braking control based on normally opened brake
Dynamic systems approach and equipment, it comprising have at least one can hydraulic braking open wheel brake, its wheel brake can be by
In the braking of electronically controlled voltage supply equipment, brake pressure is hydraulic pressure set in advance.But hydraulic pressure set in advance
The high efficiency and low wear braking of different operating modes and load cannot be simultaneously adapted to, Part load abrasion transition is caused, brake is have impact on
Security is poor under life-span, and the unexpected operating mode of the normally opened brake under the environment such as ocean and mine of its control.
Worked under marine environment, lash ship takes up room proposition restrictive requirement, ocean brake system of winch to ocean winch
Building space must be compact.The oil absorption of activity duration, season and various location marine low temperature environmental requirement brakes
It is higher, to meet the reliability and adaptability of complicated ocean environment work.Normally closed brake declutches normal work under cramped construction
When the spill losses that produces it is bigger, cause the influence of system performance degradation to become apparent from, energy consumption is higher.Advance brake pressure setting cannot
The high efficiency and low wear braking of different operating modes and load is adapted to, the brake bush life-span is shorter.Existing brake system of winch cannot
Overcome disadvantage mentioned above simultaneously, meet ocean brake system of winch volume occupy little space, safe, strong adaptability, energy consumption it is low
The requirement high with reliability.
The content of the invention
In order to solve the above-mentioned technical problem, the present invention provide a kind of simple structure, occupy little space, it is safe, adapt to
Property strong, energy consumption is low and reliability is high based on Closed Hydraulic brake ocean winch electro-hydraulic brake system and control method, should
Brakes can be braked to high efficiency and low wear under ocean winch different loads and operating mode.
The present invention solve above-mentioned technical problem technical scheme be：A kind of ocean winch electricity based on Closed Hydraulic brake
Hydraulic brake system, including fuel tank, hydraulic pump, threephase asynchronous, manual maintenance pump, suck-back prevent valve, brake hard inserting
Switching valve, normally closed floating type hydraulic brake, winding drum brake disc, drum speed encoder, accumulator, flexible braking inserting switching
Valve, flexible braking pressure regulator valve, manual maintenance control valve, safety valve and PLC control devices；
Described fuel tank is connected by pipeline with the oil inlet of hydraulic pump, and the oil-out of hydraulic pump is prevented by pipeline with suck-back
The only oil inlet connection of valve, hydraulic pump is connected with threephase asynchronous；Suck-back prevent the oil-out of valve by in-line with
The hydraulic fluid port connection of two normally closed floating type hydraulic brakes, two normally closed floating type hydraulic brakes are arranged symmetrically in winding drum brake disc two
Side, described drum speed encoder is arranged at the drum center of winding drum brake disc；
The oil inlet of described safety valve is connected by pipeline with in-line, and the oil-out of safety valve passes through oil returning tube
Be linked back fuel tank；The hydraulic fluid port of described accumulator inserts the oil inlet of switching valve by pipeline with in-line and flexible braking respectively
Connection；The oil-out of flexible braking inserting switching valve is connected with the oil inlet of flexible braking pressure regulator valve；Brake hard inserting switching
The oil inlet of valve is connected with in-line；
Described manual maintenance controls the oil inlet and brake hard inserting switching valve of valve and going out for flexible braking pressure regulator valve
Hydraulic fluid port is connected, and oil-out is connected on return line；The oil inlet of described manual maintenance pump is connected by pipeline with fuel tank, hand
It is dynamic to safeguard that the oil-out of pump is connected to the pipeline that suck-back prevents valve oil-out to be connected with the hydraulic fluid port of normally closed floating type hydraulic brake
On；
Described PLC control devices are inserted with threephase asynchronous, brake hard inserting switching valve, flexible braking respectively
Switching valve, safety valve, flexible braking pressure regulator valve, the connection of drum speed encoder.
In the above-mentioned ocean winch electro-hydraulic brake system based on Closed Hydraulic brake, suck-back prevent valve oil-out with it is normal
The pipeline for closing the hydraulic fluid port connection of floating type hydraulic brake is provided with electro connecting pressure gauge, and electro connecting pressure gauge controls dress with PLC
Put connection.
In the above-mentioned ocean winch electro-hydraulic brake system based on Closed Hydraulic brake, described hydraulic pump is arranged on oil
In case, hydraulic pump is connected by shaft coupling and transition interfacing orchid with threephase asynchronous, and threephase asynchronous is located at oil
Outside case.
In the above-mentioned ocean winch electro-hydraulic brake system based on Closed Hydraulic brake, fuel tank is provided with air filter
And liquid level gauge；The bottom of fuel tank is provided with drain oil, and purge cock is provided with drain oil；Electric heater and electric contact are provided with fuel tank
Thermometer；Liquid level gauge, electric heater and electric contact thermometer are connected with PLC control devices respectively.
In the above-mentioned ocean winch electro-hydraulic brake system based on Closed Hydraulic brake, described return line is provided with
Oil return cleaner, is provided with pollution signalling generator on oil return cleaner, pollution signalling generator is connected with PLC control devices.
In the above-mentioned ocean winch electro-hydraulic brake system based on Closed Hydraulic brake, also including oil circuit circuit board, oil
Road circuit board is arranged on fuel tank, accumulator, and brake hard inserting switching valve, flexible braking inserting switching valve, flexible braking is adjusted
Pressure valve, manual maintenance control valve, oil return cleaner and safety valve are arranged on oil circuit circuit board.
A kind of method that ocean winch electro-hydraulic brake system based on Closed Hydraulic brake is controlled, concrete operations are such as
Under：
When manual maintenance is operated, manual maintenance control valve is closed, operate manual maintenance pump, normally closed floating brake pine
Open；Manual maintenance control valve is opened, brake is closed；
It is automatically controlled declutch work when, manual maintenance control valve open, start PLC control devices the play button that declutches, promptly
Braking inserting switching valve and flexible braking inserting switching valve it is electric, normally closed floating type hydraulic brake declutches；
When pressure is more than electro connecting pressure gauge higher limit p in in-linesWhen, pressurize is carried out by accumulator, it is phase asynchronous
Motor shuts down；When system pressure is less than electro connecting pressure gauge lower limit pxWhen, threephase asynchronous is operated again；Its
In：
In formula, pmax- normally closed floating type hydraulic brake total travel opens corresponding system pressure；p0.5max- normally closed floating
Formula liquid braking device opens the corresponding system pressure of half stroke；
During automatically controlled brake hard, manual maintenance control valve is opened, and starts the emergency stop button of PLC control devices, promptly
Braking inserting switching valve dead electricity, flexible braking inserting switching valve obtains electric, and system carries out brake hard, when drum speed encoder
When tacho signal value is 0, end of braking, threephase asynchronous shuts down, flexible braking inserting switching valve dead electricity；
During automatically controlled flexible braking, manual maintenance control valve is opened, and starts the flexible braking button of PLC control devices, promptly
Braking inserting switching valve obtains electric, flexible braking inserting switching valve dead electricity, control system according to the tachometer value of drum speed encoder,
To the regulation pressure p of flexible braking pressure regulator valverAssignment is carried out, flexible braking is carried out, when the tach signal of drum speed encoder
Be worth for 0 when, end of braking, threephase asynchronous shuts down, brake hard inserting switching valve dead electricity；Wherein：
In formula, the rotating speed measured value of n- drum speed encoders；neRotating speed under the winch nominal operation of-ocean；
kn- low abrasion rotating speed adapts to pressure compensation coefficient, true according to friction plate material wear rate and friction plate life expectancy
It is fixed as follows：
In formula, FtThe maximum braking force of-normally closed floating type hydraulic brake checking cylinder；N- drum speeds；μ-friction plate with
The coefficient of friction of brake disc；Ts- friction plate is expected replacing construction；Δ d- friction plates change wear-thickness；V- wear rates.
Compared with prior art, the beneficial effects of the invention are as follows：
1. hydraulic pump of the invention is arranged in fuel tank, and hydraulic control component is arranged on fuel tank by oil circuit circuit board,
Spaces compact, meets the requirement that lash ship is limited ocean winch space, strong adaptability.
2. the present invention declutch normal work when, by the upper and lower limit switch of electro connecting pressure gauge, carry out system phase asynchronous
Motor start and stop holding pressure control, had both avoided the influence that long-time spill losses causes system performance degradation, also eliminates and is simultaneously
System mutation pressure causes the phenomenon of threephase asynchronous repeatedly starting and stopping, system energy consumption reduction.
3. the present invention can determine flexible braking pressure according to friction plate material wear rate and friction plate life expectancy, it is to avoid
The drastically abrasion of friction plate, improves friction plate service life.
4. electric heater is provided with fuel tank of the present invention, working oil temperature of the invention can be improved, it is ensured that pump under low temperature environment
Oil absorption, system reliability and adaptability are higher.
5. the present invention is provided with manual maintenance pump and manual maintenance control valve, and during dead electricity of the present invention, brake is normally closed, Neng Goutong
Cross regulation manual maintenance control valve manually to safeguard system, system maintenance and high safety.
Brief description of the drawings
Fig. 1 is hydraulic control circuit structure chart of the invention.
Fig. 2 is automatically controlled wiring arrangement figure of the invention.
Fig. 3 declutches normal work control block diagram for the present invention.
Fig. 4 is brake hard control block diagram of the present invention.
Fig. 5 is flexible braking control block diagram of the present invention.
In figure：1st, purge cock, 2, liquid level gauge, 3, hydraulic pump, 4, shaft coupling, 5, transition interfacing it is blue, 6, air-filtering
Device, 7, threephase asynchronous, 8, manual maintenance pump, 9, suck-back prevent valve, 10, electro connecting pressure gauge, 11, oil circuit circuit board,
12nd, normally closed floating type hydraulic brake, 13, winding drum brake disc, 14, drum speed encoder, 15, accumulator, 16, flexible braking
Inserting switching valve, 17, flexible braking pressure regulator valve, 18, manual maintenance control valve, 19, safety valve, 20, oil return cleaner, 21, dirty
Dye signalling generator, 22, electric heater, 23, fuel tank, 24, electric contact thermometer, 25, brake hard inserting switching valve.
Specific embodiment
The present invention is further illustrated below in conjunction with the accompanying drawings.
As shown in Figure 1-2, the ocean winch electro-hydraulic brake system based on Closed Hydraulic brake of the invention includes fuel tank
23, hydraulic pump 3, threephase asynchronous 7, manual maintenance pump 8, suck-back prevents valve 9, brake hard inserting switching valve 25, oil circuit
Circuit board 11, normally closed floating type hydraulic brake 12, winding drum brake disc 13, drum speed encoder 14, accumulator 15, flexibility system
Dynamic inserting switching valve 16, flexible braking pressure regulator valve 17, manual maintenance control valve 18, safety valve 19 and PLC control devices.
Described fuel tank 23 is provided with air filter 6 and liquid level gauge 2；The bottom of fuel tank 23 is provided with drain oil, drain oil
Place is provided with purge cock 1；Electric heater 22 and electric contact thermometer 24 are provided with fuel tank 23, working oil of the invention can be improved
Temperature, it is ensured that the oil absorption of pump under low temperature environment so that reliability of the invention and adaptability are higher.
Described hydraulic pump 3 is arranged in fuel tank 23, and hydraulic pump 3 is different with three by shaft coupling 4 and transition interfacing blue 6
Step motor 7 is connected, and threephase asynchronous 7 is located at outside fuel tank 23.The oil inlet of hydraulic pump 3 is accessed in fuel tank 23 by pipeline
Under fluid liquid level, the oil-out of hydraulic pump 3 prevents the oil inlet of valve 9 to be connected by the pipeline on oil circuit circuit board 11 and suck-back.
Suck-back prevents the oil-out of valve 9 by the in-line and the oil of two normally closed floating type hydraulic brakes 12 on oil circuit circuit board 11
Mouth connection, in-line is provided with electro connecting pressure gauge 10.The present invention declutch normal work when, it is upper and lower by electro connecting pressure gauge
Limit switch, carries out system threephase asynchronous start and stop holding pressure control, had both avoided long-time spill losses and has caused systematic function
The influence of degeneration, also eliminates the phenomenon that system sudden change pressure causes threephase asynchronous repeatedly starting and stopping, system energy consumption simultaneously
Reduce.
Two described normally closed floating type hydraulic brakes 12 are arranged symmetrically in the both sides of winding drum brake disc 13, described reel
Rotating speed coder 14 is arranged on the center of the reel of winding drum brake disc 13.The oil inlet of safety valve 18 passes through pipeline and oil inlet pipe
Road is connected, and the oil-out of safety valve 18 is linked back fuel tank by the oil returning tube on oil circuit circuit board 11, and oil returning tube is provided with back
Oil rectifier 20, is provided with pollution signalling generator 21 on oil return cleaner 20.The hydraulic fluid port of described accumulator 15 is integrated by oil circuit
The oil inlet that pipeline on plate 11 inserts switching valve 16 with in-line and flexible braking respectively is connected；Flexible braking inserting switching
The oil-out of valve 16 is connected with the oil inlet of flexible braking pressure regulator valve 17；The oil inlet of brake hard inserting switching valve 25 and oil-feed
Pipeline is connected.
The oil inlet of described manual maintenance control valve 18 inserts switching valve 25 and flexible braking pressure regulator valve with brake hard
17 oil-outs connection, manual maintenance control valve 18 oil-out be connected on return line.Described manual maintenance pump 8 enters
Hydraulic fluid port is connected by pipeline with fuel tank 23, on the oil-out connection in-line of manual maintenance pump 8.Described oil circuit circuit board 11
On fuel tank 23, electro connecting pressure gauge 10, accumulator 15, brake hard inserting switching valve 25, flexible braking inserting switching
Valve 16, flexible braking pressure regulator valve 17, manual maintenance control valve 18, oil return cleaner 20 and safety valve 18 are arranged on oil circuit circuit board
On 11.
As shown in Fig. 2 described PLC control devices insert switching valve with threephase asynchronous 7, brake hard respectively
25th, flexible braking inserting switching valve 16, drum speed encoder 14, flexible braking pressure regulator valve 17, safety valve 19, liquid level gauge 2, electricity
Contact pressure table 10, electric heater 22 and electric contact thermometer 24 and pollution signalling generator 21 are connected.PLC control devices are provided with and declutch
Play button, emergency stop button and flexible braking button.
As shown in Fig. 2 the ocean winch electro-hydraulic brake system control method based on Closed Hydraulic brake of the invention, its
Concrete operations are as follows：
(1) when manual maintenance is operated, manual maintenance control valve 18, operation manual maintenance pump 8, normally closed floating type braking are closed
Device 12 unclamps；Manual maintenance control valve 18 is opened, brake is closed；
(2) as shown in figure 3, it is automatically controlled declutch work when, manual maintenance control valve 18 is opened, and startup is declutched play button, is led to
Cross the lower position switch of liquid level gauge 2, pollution signalling generator 21 switch detection liquid level and oil cleanliness.By under electric contact thermometer 24
Limit switch, starts control electric heater 22, and oil liquid temperature is maintained into more than 20 DEG C；Brake hard inserts switching valve 25 and flexibility
Braking inserting switching valve 16 it is electric, normally closed floating type hydraulic brake 12 declutches；
When the pressure in in-line is more than the higher limit p of electro connecting pressure gauge 10sWhen, by the pressurize of accumulator 15, three is different
Step motor 7 shuts down；When system pressure is less than the lower limit p of electro connecting pressure gauge 10xWhen, threephase asynchronous 7 is again
Operating.Wherein：
In formula, pmax- normally closed floating type hydraulic brake total travel opens corresponding system pressure；p0.5max- normally closed floating
Formula liquid braking device opens the corresponding system pressure of half stroke；
(3) as shown in figure 4, during automatically controlled brake hard, manual maintenance control valve 18 is opened, and starts the tight of PLC control devices
Anxious locking key, the brake hard inserting dead electricity of switching valve 25, flexible braking inserting switching valve 16 obtains electric, and system is promptly made
Dynamic, when the tacho signal value of drum speed encoder 14 is 0, end of braking, threephase asynchronous 7 shuts down, flexible
The braking inserting dead electricity of switching valve 16.
(4) as shown in figure 5, during automatically controlled flexible braking, manual maintenance control valve 18 is opened, and starts the soft of PLC control devices
Property locking key, brake hard inserting switching valve 25 it is electric, flexible braking inserting the dead electricity of switching valve 16, control system is according to reel
The tachometer value of rotating speed coder 14, to the regulation pressure p of flexible braking pressure regulator valve 17rAssignment is carried out, system carries out flexible braking,
When the tacho signal value of drum speed encoder 14 is 0, end of braking, threephase asynchronous 7 shuts down, brake hard
The inserting dead electricity of switching valve 25.Wherein：
In formula, the rotating speed measured value of n- drum speed encoders；neRotating speed under the winch nominal operation of-ocean.
kn- low abrasion rotating speed adapts to pressure compensation coefficient, true according to friction plate material wear rate and friction plate life expectancy
It is fixed as follows：
In formula, FtThe maximum braking force of-normally closed floating type hydraulic brake checking cylinder；N- drum speeds；μ-friction plate with
The coefficient of friction of brake disc；Ts- friction plate is expected replacing construction；Δ d- friction plates change wear-thickness；V- wear rates.
Claims (7)
1. a kind of ocean winch electro-hydraulic brake system based on Closed Hydraulic brake, it is characterized in that：Including fuel tank, hydraulic pump,
Threephase asynchronous, manual maintenance pump, suck-back prevents valve, brake hard inserting switching valve, normally closed floating type hydraulic brake,
Winding drum brake disc, drum speed encoder, accumulator, flexible braking inserting switching valve, flexible braking pressure regulator valve, manual maintenance control
Valve processed, safety valve and PLC control devices；
Described fuel tank is connected by pipeline with the oil inlet of hydraulic pump, and the oil-out of hydraulic pump prevents valve by pipeline and suck-back
Oil inlet connection, hydraulic pump is connected with threephase asynchronous；Suck-back prevents the oil-out of valve normal with two by in-line
The hydraulic fluid port connection of floating type hydraulic brake is closed, two normally closed floating type hydraulic brakes are arranged symmetrically in winding drum brake disc both sides,
Described drum speed encoder is arranged at the drum center of winding drum brake disc；
The oil inlet of described safety valve is connected by pipeline with in-line, and the oil-out of safety valve is linked back by oil returning tube
Fuel tank；The hydraulic fluid port of described accumulator is connected by the oil inlet that pipeline inserts switching valve with in-line and flexible braking respectively
Connect；The oil-out of flexible braking inserting switching valve is connected with the oil inlet of flexible braking pressure regulator valve；Brake hard inserts switching valve
Oil inlet be connected with in-line；
The oil inlet of described manual maintenance control valve inserts the oil-out of switching valve and flexible braking pressure regulator valve with brake hard
Connection, oil-out is connected on return line；The oil inlet of described manual maintenance pump is connected by pipeline with fuel tank, manually dimension
The oil-out for protecting pump is connected on the pipeline that suck-back prevents valve oil-out to be connected with the hydraulic fluid port of normally closed floating type hydraulic brake；
Described PLC control devices switch with threephase asynchronous, brake hard inserting switching valve, flexible braking inserting respectively
Valve, safety valve, flexible braking pressure regulator valve, the connection of drum speed encoder.
2. the ocean winch electro-hydraulic brake system based on Closed Hydraulic brake according to claim 1, it is characterized in that：
The pipeline that suction prevents valve oil-out to be connected with the hydraulic fluid port of normally closed floating type hydraulic brake is provided with electro connecting pressure gauge, electric contact
Pressure gauge is connected with PLC control devices.
3. the ocean winch electro-hydraulic brake system based on Closed Hydraulic brake according to claim 1, it is characterized in that：Institute
The hydraulic pump stated is arranged in fuel tank, and hydraulic pump is connected by shaft coupling and transition interfacing orchid with threephase asynchronous, and three
Phase asynchronous motor is located at outside fuel tank.
4. the ocean winch electro-hydraulic brake system based on Closed Hydraulic brake according to claim 2, it is characterized in that：Oil
Case is provided with air filter and liquid level gauge；The bottom of fuel tank is provided with drain oil, and purge cock is provided with drain oil；Set in fuel tank
There are electric heater and electric contact thermometer；Liquid level gauge, electric heater and electric contact thermometer are connected with PLC control devices respectively.
5. the ocean winch electro-hydraulic brake system based on Closed Hydraulic brake according to claim 4, it is characterized in that：Institute
The return line stated is provided with oil return cleaner, and pollution signalling generator is provided with oil return cleaner, and pollution signalling generator is controlled with PLC
Device is connected.
6. the ocean winch electro-hydraulic brake system based on Closed Hydraulic brake according to claim 5, it is characterized in that：Also
Including oil circuit circuit board, oil circuit circuit board is arranged on fuel tank, accumulator, brake hard inserting switching valve, flexible braking inserting
Switching valve, flexible braking pressure regulator valve, manual maintenance control valve, oil return cleaner and safety valve are arranged on oil circuit circuit board.
7. the ocean winch based on Closed Hydraulic brake in a kind of utilization claim 1-6 described in any claim is electro-hydraulic
The electro-hydraulic brake control method of brakes, concrete operations are as follows：
When manual maintenance is operated, manual maintenance control valve is closed, operate manual maintenance pump, normally closed floating brake to unclamp；Beat
Manual maintenance control valve is driven, brake is closed；
It is automatically controlled declutch work when, manual maintenance control valve open, start PLC control devices the play button that declutches, brake hard
Inserting switching valve and flexible braking inserting switching valve it is electric, normally closed floating type hydraulic brake declutches；
When pressure is more than electro connecting pressure gauge higher limit in in-lineWhen, pressurize, threephase asynchronous are carried out by accumulator
Shut down；When system pressure is less than electro connecting pressure gauge lower limitWhen, threephase asynchronous is operated again；Wherein：
（1）
In formula,Normally closed floating type hydraulic brake total travel opens corresponding system pressure；Normally closed float type liquid
Pressure brake opens the corresponding system pressure of half stroke；
During automatically controlled brake hard, manual maintenance control valve is opened, and starts the emergency stop button of PLC control devices, brake hard
Inserting switching valve dead electricity, flexible braking inserting switching valve obtains electric, and system carries out brake hard, when the rotating speed of drum speed encoder
When signal value is 0, end of braking, threephase asynchronous shuts down, flexible braking inserting switching valve dead electricity；
During automatically controlled flexible braking, manual maintenance control valve is opened, and starts the flexible braking button of PLC control devices, brake hard
Inserting switching valve obtains electric, flexible braking inserting switching valve dead electricity, control system according to the tachometer value of drum speed encoder, to soft
Property braking pressure regulator valve regulation pressureAssignment is carried out, flexible braking is carried out, when the tacho signal value of drum speed encoder is 0
When, end of braking, threephase asynchronous shuts down, brake hard inserting switching valve dead electricity；Wherein：
（2）
In formula,The rotating speed measured value of drum speed encoder；Rotating speed under the winch nominal operation of ocean；
Low abrasion rotating speed adapts to pressure compensation coefficient, is determined such as according to friction plate material wear rate and friction plate life expectancy
Under：
（3）
In formula,The maximum braking force of normally closed floating type hydraulic brake checking cylinder；Drum speed；Friction plate and brake
The coefficient of friction of disk；Friction plate is expected replacing construction；Friction plate changes wear-thickness；Wear rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710243394.7A CN106882722B (en) | 2017-04-14 | 2017-04-14 | Ocean winch electro-hydraulic braking system based on closed hydraulic brake and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710243394.7A CN106882722B (en) | 2017-04-14 | 2017-04-14 | Ocean winch electro-hydraulic braking system based on closed hydraulic brake and control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106882722A true CN106882722A (en) | 2017-06-23 |
| CN106882722B CN106882722B (en) | 2022-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710243394.7A Active CN106882722B (en) | 2017-04-14 | 2017-04-14 | Ocean winch electro-hydraulic braking system based on closed hydraulic brake and control method |
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| CN (1) | CN106882722B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN114132863A (en) * | 2021-11-24 | 2022-03-04 | 无锡智瀚智能机器技术有限公司 | Winch braking device and workover rig comprising same |
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| CN108298448A (en) * | 2017-12-29 | 2018-07-20 | 中国船舶重工集团公司第七0研究所 | A kind of underwater optoelectronic composite cable winch using flexible reel |
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| CN115453924A (en) * | 2022-04-28 | 2022-12-09 | 天地(榆林)开采工程技术有限公司 | Disc brake control system and control method |
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