CN105570214B - The emergent decentralization valve group of one kind - Google Patents
The emergent decentralization valve group of one kind Download PDFInfo
- Publication number
- CN105570214B CN105570214B CN201610152383.3A CN201610152383A CN105570214B CN 105570214 B CN105570214 B CN 105570214B CN 201610152383 A CN201610152383 A CN 201610152383A CN 105570214 B CN105570214 B CN 105570214B
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- CN
- China
- Prior art keywords
- valve
- decentralization
- pressure
- emergent
- motor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- 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
- B66D1/02—Driving gear
- B66D1/08—Driving gear incorporating fluid motors
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/025—Pressure reducing valves
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0401—Valve members; Fluid interconnections therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D2700/00—Capstans, winches or hoists
- B66D2700/01—Winches, capstans or pivots
- B66D2700/0125—Motor operated winches
- B66D2700/0133—Fluid actuated
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
It is simple in construction, need not increase that gib head counterweight can just realize emergent decentralization, decrease speed is stepless adjustable the invention discloses the emergent decentralization valve group of one kind.Its technical scheme is：The external motor of valve group, liquid braking device and oil sources, include choke valve, pilot operated directional control valve, pressure-reducing valve, check valve and hand-operated direction valve inside valve group, wherein choke valve and pilot operated directional control valve are connected in the tie point of motor high pressure side ports, pressure-reducing valve and check valve are connected on the second branch road of motor low pressure side ports, liquid braking device connects motor, the first end of hand-operated direction valve and the second end are connected to tie point and the second branch road, the three-terminal link liquid braking device of hand-operated direction valve.
Description
Technical field
Answered the present invention relates to the technical field of Fluid Transmission and Control, more particularly to when being broken down to crane main pump
The device of anxious decentralization valve group.
Background technology
When existing hoister in large tonnage main pump breaks down, connecting and open gib head after brake AB mouthfuls of motor can not
Meet an urgent need and decline under gravity, mainly due to weight is lighter or during empty hook, power is less than the resistance for hindering to decline on gib head
Cause to decline.
The way that in the market has been used is, in design, counterbalance design to be carried out to gib head, that is, considers that gib head will reach many
Weight, gib head can just overcome resistance to decline under gravity after AB mouthfuls of connections of motor, and this way adds gib head weight, increases
Energy consumption during lift heavy is added.
Even if the connection of AB mouthfuls of motor is opened into gib head after brakes to decline, because A mouthfuls of motor be supported it is counter drag generation high pressure,
During B mouthfuls of pressure oils of motor can go to fuel tank from motor Leakage Energy, the oil that B mouthfuls of motor has leaked rear motor and has been drawn internal produce by load
Anger erosion, load can directly drop and cause danger.
The content of the invention
The brief overview of one or more aspects given below is to provide to the basic comprehension in terms of these.This general introduction is not
The extensive overview of all aspects contemplated, and it is also non-to be both not intended to identify the key or decisive key element of all aspects
Attempt to define the scope in terms of any or all.Its unique purpose is to provide the one of one or more aspects in simplified form
A little concepts think the sequence of more detailed description given later.
It is simple in construction, without increase it is an object of the invention to solve the above problems there is provided the emergent decentralization valve group of one kind
Gib head counterweight can just realize emergent decentralization, decrease speed is stepless adjustable.
The technical scheme is that：Present invention is disclosed the emergent decentralization valve group of one kind, the external motor of valve group, hydraulic braking
Include choke valve, pilot operated directional control valve, pressure-reducing valve, check valve and hand-operated direction valve, wherein choke valve inside device and oil sources, valve group
It is connected to pilot operated directional control valve in the tie point of motor high pressure side ports, pressure-reducing valve and check valve are connected to positioned at motor
On second branch road of low pressure side ports, liquid braking device connection motor, the first end of hand-operated direction valve and the second end are connected respectively
In tie point and the second branch road, the three-terminal link liquid braking device of hand-operated direction valve.
According to an embodiment of the emergent decentralization valve group of the present invention, hand-operated direction valve manipulates the operation of liquid braking device.
According to an embodiment of the emergent decentralization valve group of the present invention, pressure-reducing valve is carried out to the oil sources for entering emergent decentralization valve group
Decompression operation, and oil sources is divided into first via oil sources and the second road binders source.
According to an embodiment of the emergent decentralization valve group of the present invention, first via oil sources is accessed motor low-pressure side by check valve,
The suspension hook of outside is set actively to decline.
According to an embodiment of the emergent decentralization valve group of the present invention, pilot operated directional control valve is in the second road binders depressurized through pressure-reducing valve
Opened in the presence of source, motor high-pressure side is connected by choke valve with fuel tank, adjusted by the opening for adjusting choke valve
The speed of suspension hook decentralization.
According to an embodiment of the emergent decentralization valve group of the present invention, under the suspension hook adjusted by adjusting the opening of choke valve
The speed put is stepless adjustable.
According to an embodiment of the emergent decentralization valve group of the present invention, after the oil sources of motor low-pressure side loses, motor high pressure
The oil circuit of the decline oil return of side is blocked immediately, and the decentralization process of suspension hook stops.
According to an embodiment of the emergent decentralization valve group of the present invention, the setting pressure of pressure-reducing valve is more than opening for pilot operated directional control valve
Open pressure.
According to an embodiment of the emergent decentralization valve group of the present invention, the setting pressure of pressure-reducing valve is more than required for suspension hook decline
The resistance overcome.
According to the present invention emergent decentralization valve group an embodiment, oil sources include pump, check valve and overflow valve, wherein pump and
Check valve is connected on the second branch road, and one end of overflow valve is located in tie point, and the other end of overflow valve is located at the second branch road
On.
Present invention contrast prior art has following beneficial effect：Present invention Arbitrary Loads suitable for open and close type system
The emergent decentralization of safety (containing empty hook).Its principle is：It oil sources will be used to open liquid braking device all the way, another road will be subtracted through pressure-reducing valve
The oil sources of pressure, is linked into the low-pressure side of motor, declines its active, and the oil sources depressurized through pressure-reducing valve is connected into pilot operated directional control valve
Control mouth to control the unlatching of pilot operated directional control valve, the on high-tension side oil circuit of motor is passed through choke valve and connected with fuel tank by pilot operated directional control valve
Logical, the speed of the stepless decline of weight is by throttle valve control.After the oil sources through pressure-reducing valve disappears, due to the control of pilot operated directional control valve
Mouth pressure out of hand, causes pilot operated directional control valve to be closed, so as to cut off the connection of motor high-pressure side and fuel tank, gib head is not continued to
Decline.
The advantage of the invention is that：
1. full of oil, the danger dropped suddenly will not occur for safety when improving decentralization, AB mouthfuls of motor all the time；
2. motor high-pressure side hydraulic fluid port by pilot operated directional control valve control with the connection of fuel tank whether, it is to avoid motor torque is inadequate
The hard possibility dragged down is supported, security is improved；
3. easy to operate, after the emergent oil sources of decentralization valve group access of meeting an urgent need, then emergent decentralization at once stops emergent oil sources then horse
It is upper to stop decentralization；
4. being not only suitable for the emergent decentralization of closed system driving, the emergent decentralization of open system driving is also applied for；
5. suitable for external a variety of executing agencies, except external motor, it is equally applicable to external oil cylinder etc.；
6. it is increased without gib head counterweight, you can realize the emergent decentralization of Arbitrary Loads (containing empty hook), alleviate weight reduction
Energy consumption.
Brief description of the drawings
Fig. 1 shows the structure chart of the preferred embodiment of the emergent decentralization valve group of the present invention.
Embodiment
After the detailed description of embodiment of the disclosure is read in conjunction with the following drawings, it better understood when the present invention's
Features described above and advantage.In the accompanying drawings, each component is not necessarily drawn to scale, and with similar correlation properties or feature
Component may have same or like reference.
Fig. 1 shows the structure of the preferred embodiment of the emergent decentralization valve group of the present invention.Refer to Fig. 1, the present embodiment with
Illustrate exemplified by motor driving elevator winch, whole emergent decentralization valve group is comprising the system for opening brake and realizes emergent decentralization
System.
The external motor 6 of emergent decentralization valve group, liquid braking device 7 and oil sources of the present embodiment, oil sources is for example including pump 8, list
To the structure of valve 9 and overflow valve 10.
Include choke valve 1, pilot operated directional control valve 2, pressure-reducing valve 3, check valve 4 and hand-operated direction valve inside emergent decentralization valve group
5.Wherein choke valve 1 and pilot operated directional control valve 2 are connected in motor high pressure side ports A tie point, pressure-reducing valve 3 and unidirectional
Valve 4 is connected on motor low pressure side ports B the second branch road.Liquid braking device 7 connects motor 6, the of hand-operated direction valve 5
One end P and the second end T are connected to tie point and the second branch road, the 3rd end B connections liquid braking device 7 of hand-operated direction valve 5.
For oil sources, pump 8 and check valve 9 are connected on the second branch road, and one end of overflow valve 10 is located in tie point, overflows
The other end for flowing valve 10 is located on the second branch road.
When the gib head of suspension hook needs emergent decentralization, first operate hand-operated direction valve 5 to open liquid braking device 7, then only need
The oil sources that P mouths access to emergent decentralization valve group is met an urgent need, oil sources enters after valve group, first passes through pressure-reducing valve 3 and depressurize, the oil after decompression
Source is divided into two-way, and the first via accesses the low-pressure side of motor 6 by check valve 4, makes suspension hook actively decline, the second tunnel is opened hydraulic control and changed
To valve 2.Pilot operated directional control valve 2 is opened under the hydraulic control oil sources effect depressurized through pressure-reducing valve 3, the high-pressure side of motor 6 is passed through throttling
Valve 1 is connected with fuel tank.By adjusting the opening of choke valve 1, the speed of gib head decentralization can be adjusted, this speed regulation belongs to nothing
Level is adjustable.
After the oil sources of motor low-pressure side loses, the on high-tension side oil circuit for declining oil return of motor is blocked immediately, suspension hook
Decentralization process stops.
In the present embodiment, the setting pressure of pressure-reducing valve 3 is more than the Opening pressure of pilot operated directional control valve 2.The setting of pressure-reducing valve 3
Pressure is more than the resistance overcome required for suspension hook declines and (overcomes weight, gib head, steel wire rope weight on power-gib head of resistance needs
Amount).
It is for so that any person skilled in the art all can make or use this public affairs to provide of this disclosure be previously described
Open.Various modifications of this disclosure all will be apparent for a person skilled in the art, and as defined herein general
Suitable principle can be applied to spirit or scope of other variants without departing from the disclosure.Thus, the disclosure is not intended to be limited
Due to example described herein and design, but it should be awarded and principle disclosed herein and novel features phase one
The widest scope of cause.
Claims (6)
1. the emergent decentralization valve group of one kind, it is characterised in that include inside the external motor of valve group, liquid braking device and oil sources, valve group
Choke valve, pilot operated directional control valve, pressure-reducing valve, check valve and hand-operated direction valve, wherein choke valve and pilot operated directional control valve, which are connected to, to be located at
In the tie point of motor high pressure side ports, pressure-reducing valve and check valve are connected to the second branch road positioned at motor low pressure side ports
On, liquid braking device connection motor, the first end of hand-operated direction valve and the second end are connected to tie point and the second branch road,
The three-terminal link liquid braking device of hand-operated direction valve, pressure-reducing valve carries out decompression operation to the oil sources for entering emergent decentralization valve group,
And oil sources is divided into first via oil sources and the second road binders source, first via oil sources is accessed motor low-pressure side by check valve, makes outside
Suspension hook actively declines, and pilot operated directional control valve is opened in the presence of the second road binders source depressurized through pressure-reducing valve, leads to motor high-pressure side
Cross choke valve to connect with fuel tank, be able to adjust the speed that suspension hook is transferred by adjusting the opening of choke valve, when motor low-pressure side
After oil sources loses, the on high-tension side oil circuit for declining oil return of motor is blocked immediately, and the decentralization process of suspension hook stops.
2. emergent decentralization valve group according to claim 1, it is characterised in that hand-operated direction valve manipulates the fortune of liquid braking device
OK.
3. emergent decentralization valve group according to claim 1, it is characterised in that adjusted by adjusting the opening of choke valve
The speed of suspension hook decentralization is stepless adjustable.
4. emergent decentralization valve group according to claim 3, it is characterised in that the setting pressure of pressure-reducing valve is more than liquid controlled reversing
The Opening pressure of valve.
5. emergent decentralization valve group according to claim 4, it is characterised in that the setting pressure of pressure-reducing valve declines more than suspension hook
The required resistance overcome.
6. emergent decentralization valve group according to any one of claim 1 to 5, it is characterised in that oil sources includes pump, check valve
And overflow valve, wherein pump and check valve be connected on the second branch road, and one end of overflow valve is located in tie point, overflow valve it is another
One end is located on the second branch road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610152383.3A CN105570214B (en) | 2016-03-17 | 2016-03-17 | The emergent decentralization valve group of one kind |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610152383.3A CN105570214B (en) | 2016-03-17 | 2016-03-17 | The emergent decentralization valve group of one kind |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105570214A CN105570214A (en) | 2016-05-11 |
| CN105570214B true CN105570214B (en) | 2017-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610152383.3A Active CN105570214B (en) | 2016-03-17 | 2016-03-17 | The emergent decentralization valve group of one kind |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113148884B (en) * | 2021-04-20 | 2022-11-29 | 徐州重型机械有限公司 | Emergency power device and crane winch emergency hydraulic control system |
| CN114033773B (en) * | 2021-11-29 | 2024-03-26 | 苏州丹顿机电有限公司 | Quick-closing butterfly valve group device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1137321A (en) * | 1997-07-22 | 1999-02-12 | Aintetsuku:Kk | Directional control valve and two-speed hydraulic motor controlling method and control circuit |
| CN102336372A (en) * | 2010-07-16 | 2012-02-01 | 徐州重型机械有限公司 | Hydraulic control system of crane and winch device of crane |
| CN202148163U (en) * | 2011-07-15 | 2012-02-22 | 上海三一科技有限公司 | Winding emergency lowering device and crane with same |
| CN102910550B (en) * | 2012-09-20 | 2014-09-10 | 宁波凯荣船用机械有限公司 | Winch emergency pay-off module |
| CN203476861U (en) * | 2013-06-21 | 2014-03-12 | 中联重科股份有限公司 | Emergency power system and hoisting mechanism and hoisting equipment comprising same |
| CN204251256U (en) * | 2014-11-28 | 2015-04-08 | 中联重科股份有限公司 | Winch control system and emergency lowering control device thereof |
| CN205423361U (en) * | 2016-03-17 | 2016-08-03 | 上海振华重工(集团)股份有限公司 | Emergent valves of transferring |
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2016
- 2016-03-17 CN CN201610152383.3A patent/CN105570214B/en active Active
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| Publication number | Publication date |
|---|---|
| CN105570214A (en) | 2016-05-11 |
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