CN107435665A - High-altitude system watt car and its electric proportional hydraulic system - Google Patents
High-altitude system watt car and its electric proportional hydraulic system Download PDFInfo
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- CN107435665A CN107435665A CN201710450365.8A CN201710450365A CN107435665A CN 107435665 A CN107435665 A CN 107435665A CN 201710450365 A CN201710450365 A CN 201710450365A CN 107435665 A CN107435665 A CN 107435665A
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- valve
- oil cylinder
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- cylinder
- oil
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Classifications
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- 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
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/161—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load
- F15B11/165—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load for adjusting the pump output or bypass in response to demand
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D15/00—Apparatus or tools for roof working
- E04D15/04—Apparatus or tools for roof working for roof coverings comprising slabs, sheets or flexible material
-
- 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
- F15B13/01—Locking-valves or other detent i.e. load-holding devices
-
- 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
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
-
- 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
- F15B21/02—Servomotor systems with programme control derived from a store or timing device; Control devices therefor
-
- 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
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/72—Output members, e.g. hydraulic motors or cylinders or control therefor having locking means
-
- 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
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/895—Manual override
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The present invention relates to a kind of high-altitude system watt car and its electric proportional hydraulic system.Electric proportional hydraulic system includes hydraulic oil container and the load sensitive pump connected thereon, it is connected with turn on load sensitive pump and manipulates valve, swivel coupling and electric proportional reversing valve, manipulate the downstream of valve also and be connected to cross cylinder and Vertical Cylinders, the downstream of electric proportional reversing valve is simultaneously connected to amplitude oil cylinder, telescopic oil cylinder, balancing cylinder, rotary motor, unreels oil cylinder and cutter cylinder, and electric proportional reversing valve and load sensitive pump control electrical connection.In a manner of manipulating valve and electric proportional reversing valve flow-dividing control, cross cylinder, Vertical Cylinders, amplitude oil cylinder, telescopic oil cylinder, balancing cylinder, rotary motor, the control oil circuit that unreels oil cylinder and cutter cylinder are integrated on same hydraulic power unit, the hydraulic power unit carries out closed loop feedback control using load sensitive pump and electric proportional reversing valve simultaneously, to adjust in real time, accurate control.
Description
Technical field
The present invention relates to a kind of high-altitude system watt car and its electric proportional hydraulic system.
Background technology
At present, it is generally on the ground that color steel tile is compressing in the factory roof build process of steel construction, by color steel
Watt being lifted using auxiliary equipment to the deck of factory building, then artificial laying installation, color steel tile is easily deformed in hoisting process, and
And efficiency comparison is low.
The A of Chinese patent literature CN 104831877 disclose a kind of high-altitude system watt car, including make watt machine, elevating mechanism, put
Mechanism, mounting seat and moving body are rolled up, mounting seat is that the revolving dial of gyration, system watt can be carried out relative to moving body
Machine is arranged on elevating mechanism, and elevating mechanism and unreeling structure are arranged on revolving dial, and unreeling structure is located at elevating mechanism
Lower section, revolving dial are arranged on moving body.Elevating mechanism includes connecting rod balanced controls and amplitude oil cylinder.
But it is existing system watt car realize mechanism stretch action, luffing action, revolution act, unreel action, balance play and
It is by the relatively independent control of multiple hydraulic systems, the coordinated signals between each hydraulic system are logical again during shear action
Regulator cubicle centralized Control is crossed, thus the shortcomings that control accuracy is low, fault rate is high be present in an existing system watt car.
The content of the invention
The present invention is intended to provide the electric proportional hydraulic system that a kind of control accuracy is high, while additionally provide one kind and use the electricity
The high-altitude system watt car of proportional hydraulic system.
In order to solve the above technical problems, the technical scheme of electric proportional hydraulic system is as follows in the present invention：
Electric proportional hydraulic system, including hydraulic oil container and the load sensitive pump that connects thereon, it is connected with turn on load sensitive pump
Valve, swivel coupling and electric proportional reversing valve are manipulated, the downstream of valve is manipulated also and is connected to cross cylinder and Vertical Cylinders, electric ratio is changed
To the downstream of valve and it is connected to amplitude oil cylinder, telescopic oil cylinder, balancing cylinder, rotary motor, unreels oil cylinder and cutter cylinder, and electricity
Proportional reversing valve and load sensitive pump control electrical connection.
Pneumostome and oil return opening are additionally provided with hydraulic oil container, air filter is provided with pneumostome, is provided with oil return opening
Return filter, the inlet port of load sensitive pump connect hydraulic oil container by oil absorption filter, the oil discharge outlet of load sensitive pump and
High pressure filter is connected between the oil inlet of manipulation valve.
Hydraulic lock is installed, hydraulic oil enters the big chamber of Vertical Cylinders or small chamber by hydraulic lock, realizes on Vertical Cylinders
Oil cylinder is stretched or contracted.
Amplitude oil cylinder, telescopic oil cylinder, balancing cylinder, rotary motor and unreel and be mounted on balancing on the residing loop of oil cylinder
Valve and choke valve.
Balanced valve is Bidirectional balanced valve in loop residing for amplitude oil cylinder, and is additionally provided with and amplitude oil cylinder in the loop
The connected pipeline explosion-proof valve of rodless cavity.
The balanced valve in loop residing for rotary motor is equalizing and buffering valve.
Electric proportional reversing valve be divided into the shared luffing reversal valve of each amplitude oil cylinder, telescopic oil cylinder connection flexible reversal valve,
The shared balance reversal valve of each balancing cylinder, respectively unreel that oil cylinder shares unreel reversal valve, the revolution of rotary motor connection balances
The cut-out reversal valve that valve connects with cut-out oil cylinder, luffing reversal valve, flexible reversal valve, balance reversal valve, unreel reversal valve, revolution
Balanced valve and cut-out reversal valve are attempted by a control oil circuit, are controlled and are also associated with oil circuit and reversal valve and the overflow valve that connects.
Overflow valve and each electric proportional reversing valve are magnetic valve, and overflow valve and each reversal valve and are connect.
The technical scheme of high and medium system watt car of the present invention is as follows：
High-altitude system watt car, including car body and the electric proportional hydraulic system that sets thereon, electric proportional hydraulic system include hydraulic oil container
And the load sensitive pump connected thereon, it is connected with turn on load sensitive pump and manipulates valve, swivel coupling and electric proportional reversing valve, behaviour
Indulge the downstream of valve also and be connected to cross cylinder and Vertical Cylinders, the downstream of electric proportional reversing valve is simultaneously connected to amplitude oil cylinder, flexible oil
Cylinder, balancing cylinder, rotary motor, unreel oil cylinder and cutter cylinder, and electric proportional reversing valve and load sensitive pump control are electrically connected
Connect.
Pneumostome and oil return opening are additionally provided with hydraulic oil container, air filter is provided with pneumostome, is provided with oil return opening
Return filter, the inlet port of load sensitive pump connect hydraulic oil container by oil absorption filter, the oil discharge outlet of load sensitive pump and
High pressure filter is connected between the oil inlet of manipulation valve.
Hydraulic lock is installed, hydraulic oil enters the big chamber of Vertical Cylinders or small chamber by hydraulic lock, realizes on Vertical Cylinders
Oil cylinder is stretched or contracted.
Amplitude oil cylinder, telescopic oil cylinder, balancing cylinder, rotary motor and unreel and be mounted on balancing on the residing loop of oil cylinder
Valve and choke valve.
Balanced valve is Bidirectional balanced valve in loop residing for amplitude oil cylinder, and is additionally provided with and amplitude oil cylinder in the loop
The connected pipeline explosion-proof valve of rodless cavity.
The balanced valve in loop residing for rotary motor is equalizing and buffering valve.
Electric proportional reversing valve be divided into the shared luffing reversal valve of each amplitude oil cylinder, telescopic oil cylinder connection flexible reversal valve,
The shared balance reversal valve of each balancing cylinder, respectively unreel that oil cylinder shares unreel reversal valve, the revolution of rotary motor connection balances
The cut-out reversal valve that valve connects with cut-out oil cylinder, luffing reversal valve, flexible reversal valve, balance reversal valve, unreel reversal valve, revolution
Balanced valve and cut-out reversal valve are attempted by a control oil circuit, are controlled and are also associated with oil circuit and reversal valve and the overflow valve that connects.
Overflow valve and each electric proportional reversing valve are magnetic valve, and overflow valve and each reversal valve and are connect.
The beneficial effects of the invention are as follows：
In a manner of manipulating valve and electric proportional reversing valve flow-dividing control, by cross cylinder, Vertical Cylinders, amplitude oil cylinder, flexible oil
Cylinder, balancing cylinder, rotary motor, unreel oil cylinder and the control oil circuit of cutter cylinder is integrated on same hydraulic power unit, simultaneously should
Hydraulic power unit carries out closed loop feedback control using load sensitive pump and electric proportional reversing valve, to adjust in real time, accurate control.
Brief description of the drawings
Fig. 1 is the asphalt principle figure of the electric proportional hydraulic system of the high-altitude system watt machine of the present invention.
In figure：It is hydraulic oil container 1, oil absorption filter 2, stifled 3, liquid level liquid thermometer 4 of draining the oil, air filter 5, return filter 6, negative
Carry sensitive pump 7, high pressure filter 8, pressure gauge 9, check valve 10, centre revolving joint 11, electric proportional reversing valve group 12, two-way flat
Weighing apparatus valve group 13, pipeline explosion-proof valve 14, amplitude oil cylinder 15, telescopic oil cylinder 16, one-way balance valve 17, balancing cylinder 18, unreel oil cylinder
19th, equalizing and buffering valve 20, rotary reducer 21, rotary motor 22, cutter cylinder 23, cross cylinder 24, Vertical Cylinders 25, hydraulic pressure
Lock 26, manipulate valve 27.
Embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that do not conflicting
In the case of, the feature in embodiment and embodiment in the present invention can be mutually combined.
The embodiment of high and medium system watt machine of the present invention：As shown in figure 1, the high-altitude system watt machine includes car body and set thereon
Electric proportional hydraulic system, electric proportional hydraulic system include hydraulic oil container and the load sensitive pump that connects thereon, on load sensitive pump
It is connected with turn and manipulates valve, swivel coupling and electric proportional reversing valve, manipulates the downstream of valve also and be connected to cross cylinder and vertical oil
Cylinder, the downstream of electric proportional reversing valve are simultaneously connected to amplitude oil cylinder, telescopic oil cylinder, balancing cylinder, rotary motor, unreel oil cylinder and cutting knife
Oil cylinder, and electric proportional reversing valve and load sensitive pump control electrical connection.Pneumostome and oil return opening are additionally provided with hydraulic oil container,
Air filter is provided with pneumostome, return filter is provided with oil return opening, the inlet port of load sensitive pump is filtered by oil suction
Device connects hydraulic oil container, and high pressure filter is connected between the oil discharge outlet of load sensitive pump and the oil inlet for manipulating valve.Vertical oil
Hydraulic lock is installed, hydraulic oil enters the big chamber of Vertical Cylinders or small chamber by hydraulic lock, realizes stretching or contracting for oil cylinder on cylinder.Become
Width oil cylinder, telescopic oil cylinder, balancing cylinder, rotary motor and unreel and be mounted on balanced valve and throttling on the residing loop of oil cylinder
Valve.Balanced valve is Bidirectional balanced valve in loop residing for amplitude oil cylinder, and is additionally provided with the loop with amplitude oil cylinder without bar
The connected pipeline explosion-proof valve of chamber.The balanced valve in loop residing for rotary motor is equalizing and buffering valve.Electric proportional reversing valve is divided into each change
It is the shared balance reversal valve of the shared luffing reversal valve of width oil cylinder, the flexible reversal valve of telescopic oil cylinder connection, each balancing cylinder, each
Unreel that oil cylinder shares unreel reversal valve, rotary motor connection revolution balanced valve with cut off the cut-out reversal valve that connects of oil cylinder,
Luffing reversal valve, flexible reversal valve, reversal valve is balanced, reversal valve, revolution balanced valve and cut-out reversal valve is unreeled and is attempted by a control
On liquefaction road, control and be also associated with oil circuit and reversal valve and the overflow valve that connects.
Overflow valve and each electric proportional reversing valve are magnetic valve, and overflow valve and each reversal valve and are connect.
The course of work of electric proportional hydraulic system is：
First, system watt car supporting leg support process：Car body is moved to specified location, makes the edge of vehicle body and factory building almost parallel and has
Certain intervals, connected with the mains to motor, start hydraulic power unit, load sensitive pump is started working, operation valve, movable supporting legs exist
Protruding arrival relevant position, Vertical Cylinders extend downwardly from the presence of cross cylinder, the leg disc pressure of Vertical Cylinders lower end
On sleeper.Such four Vertical Cylinders lift whole vehicle body, complete supporting leg support process.
Support process hydraulic oil flows to：--- load sensitive pump --- manipulates valve --- cross cylinder --- Vertical Cylinders.
2nd, lifting mechanism raising process：Start hydraulic power unit, load sensitive pump is started working, and controls electric proportional reversing valve
Group, stretch out the amplitude oil cylinder of elevating mechanism, telescopic jib rises and rises to certain angle of elevation alpha, and rotary motor starts to rotate, revolving dial
Action, lifting mechanism and unreeling structure are rotated with, and make system watt machine goes out a watt direction face factory building, and ready color coil of strip is pacified
Mounted in unreeling on device, in the presence of oil cylinder is unreeled, unreel the device that unreels hung on support and be moved to correct position, color coil of strip around
Unreel device rotation and carry out blowing, by one end input system watt machine inlet of color steel, balancing cylinder stretches out, on connecting rod balanced controls
Lift one end of the system watt machine of side, it is possible to achieve maintain certain angle β with horizontal plane, to adapt to the gradient on factory building top, stretch
Contracting oil cylinder stretches out, telescopic jib elongation, the height of system watt machine can be quickly adjusted, after the height for reaching needs.Lifting mechanism
Have on each oil cylinder or motor equipped with balanced valve, can realize that load is kept, load controls and the effect of payload security.Entirely
Each responsiveness is controllable in lifting process, after increasing sensor in each mechanism, accesses reponse system.Vehicle can be achieved
Lifting and decline automation, on control flow export height after, parameter so as to realize a key of arm support lifting and a key decline.
System watt car lifting mechanism action process hydraulic oil flow direction：
--- load sensitive pump --- manipulates valve --- centre revolving joint --- to get on the bus control valve group
--- electric proportional reversing valve --- amplitude oil cylinder
--- electric proportional reversing valve --- balancing cylinder
--- electric proportional reversing valve --- rotary motor
--- electric proportional reversing valve --- unreels oil cylinder
--- electric proportional reversing valve --- telescopic oil cylinder
3rd, tile press pressure watt cutting-off process：Start system watt machine, realize pressure watt function, press watt length, set in advance according to demand,
Color steel tile goes out to after setting length, and electric proportional reversing valve group is powered under PLC control, cutter cylinder's action, drives cutting knife work
Make, cut off color steel tile, complete one and go out a watt working cycles.
Tile press pressure watt cutting-off process hydraulic oil flow direction：
--- load sensitive pump --- manipulates valve --- centre revolving joint --- control valve group of getting on the bus --- cutter cylinder.
Four：Vehicle withdraws process：Tile press is completed after pressure bricklayer is made to rise, it is necessary to withdraw system watt car lifting mechanism, makes watt car
Process and its raising process below lifting mechanism be not on the contrary, repeating.System watt car supporting leg withdraws process and also supports process phase with it
Instead, also do not repeating.
Whole tile press is in action process, and getting off, it is manually operated to use, and can very easily control whole system watt car
Whether supporting speed and supporting rear vehicle balance., can effective pressurize by setting hydraulic lock on Vertical Cylinders.By making
With centre revolving joint, hydraulic circuit and circuit that system watt car is got off and got on the bus can be very easily linked up, makes part of getting on or off the bus
Independently of each other, any interference will not be occurred in revolution with getting off by getting on the bus.Unreeling structure, balanced controls, telescoping mechanism and return
Balanced valve, stationarity when energy holding acts all are provided with the hydraulic system of rotation mechanism.Balance is employed on luffing loop
Valve adds being applied in combination for pipeline explosion-proof valve, realize two oil cylinders synchronism control and each conduit failure after oil cylinder position lock
Determine function, it is therefore prevented that the generation of dangerous accident.Watt car is made during operation by electrical equipment control, uses electric proportional hydraulic
System, the responsiveness of each mechanism is stable and controllable, and can realize several same more while work, and saves vehicle folding and unfolding
Operating time, save the energy.After coordinating the sensor in each mechanism simultaneously, the lifting of vehicle can be achieved and decline automatic
Change, after exporting height parameter on control flow, so as to realize that the lifting of a key of arm support and a key decline function.
The embodiment of electric proportional hydraulic system in the present invention：The structure of electric proportional hydraulic system and above-mentioned reality in the present embodiment
It is identical to apply the structure of electric proportional hydraulic system in example, therefore repeats no more.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (9)
1. electric proportional hydraulic system, it is characterised in that the load sensitive pump connected including hydraulic oil container and thereon, load sensitive pump
On be connected with turn and manipulate valve, swivel coupling and electric proportional reversing valve, manipulate the downstream of valve also and be connected to cross cylinder and vertical
Oil cylinder, the downstream of electric proportional reversing valve are simultaneously connected to amplitude oil cylinder, telescopic oil cylinder, balancing cylinder, rotary motor, unreel oil cylinder and cut
Knife oil cylinder, and electric proportional reversing valve and load sensitive pump control electrical connection.
2. electric proportional hydraulic system according to claim 1, it is characterised in that be additionally provided with hydraulic oil container pneumostome and
Oil return opening, air filter is provided with pneumostome, return filter is provided with oil return opening, the inlet port of load sensitive pump passes through suction
Oil strainer connects hydraulic oil container, and high pressure filter is connected between the oil discharge outlet of load sensitive pump and the oil inlet for manipulating valve.
3. electric proportional hydraulic system according to claim 1, it is characterised in that hydraulic lock, liquid are provided with Vertical Cylinders
Force feed enters the big chamber of Vertical Cylinders or small chamber by hydraulic lock, realizes stretching or contracting for oil cylinder.
4. according to the electric proportional hydraulic system described in claim 1 or 2 or 3, it is characterised in that amplitude oil cylinder, telescopic oil cylinder, put down
Weighing apparatus oil cylinder, rotary motor and unreel and be mounted on balanced valve on the residing loop of oil cylinder.
5. electric proportional hydraulic system according to claim 4, it is characterised in that balanced valve is in loop residing for amplitude oil cylinder
Bidirectional balanced valve, and the pipeline explosion-proof valve being connected with the rodless cavity of amplitude oil cylinder is additionally provided with the loop.
6. electric proportional hydraulic system according to claim 4, it is characterised in that the balanced valve in loop residing for rotary motor is
Equalizing and buffering valve.
7. according to the electric proportional hydraulic system described in claim 1 or 2 or 3, it is characterised in that electric proportional reversing valve is divided into each change
It is the shared balance reversal valve of the shared luffing reversal valve of width oil cylinder, the flexible reversal valve of telescopic oil cylinder connection, each balancing cylinder, each
Unreel that oil cylinder shares unreel reversal valve, rotary motor connection revolution balanced valve with cut off the cut-out reversal valve that connects of oil cylinder,
Luffing reversal valve, flexible reversal valve, reversal valve is balanced, reversal valve, revolution balanced valve and cut-out reversal valve is unreeled and is attempted by a control
On liquefaction road, control and be also associated with oil circuit and reversal valve and the overflow valve that connects.
8. electric proportional hydraulic system according to claim 7, it is characterised in that overflow valve and each electric proportional reversing valve are
Magnetic valve, and overflow valve and each reversal valve and connect.
9. high-altitude system watt car, including the electric ratio liquid in car body and the claims 1 to 8 that set thereon described in any one
Pressure system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710450365.8A CN107435665A (en) | 2017-06-15 | 2017-06-15 | High-altitude system watt car and its electric proportional hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710450365.8A CN107435665A (en) | 2017-06-15 | 2017-06-15 | High-altitude system watt car and its electric proportional hydraulic system |
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| Publication Number | Publication Date |
|---|---|
| CN107435665A true CN107435665A (en) | 2017-12-05 |
Family
ID=60458617
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710450365.8A Pending CN107435665A (en) | 2017-06-15 | 2017-06-15 | High-altitude system watt car and its electric proportional hydraulic system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985464A (en) * | 2019-12-30 | 2020-04-10 | 徐州海伦哲特种车辆有限公司 | Automatic interlocking control system for getting on and off of overhead working truck and control method thereof |
| CN112833058A (en) * | 2021-01-21 | 2021-05-25 | 长沙中联重科环境产业有限公司 | Load-sensitive hydraulic system and hedge trimming equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202249846U (en) * | 2011-10-13 | 2012-05-30 | 中国石油天然气股份有限公司 | Hydraulic control system for continuous pipe snubbing unit |
| CN102788055A (en) * | 2012-08-07 | 2012-11-21 | 徐工集团工程机械股份有限公司 | Hydraulic system of wrecker |
| CN203558743U (en) * | 2013-06-05 | 2014-04-23 | 长沙桑尼重工机械有限公司 | Intelligent remote control lorry-mounted crane |
| CN106122157A (en) * | 2016-08-31 | 2016-11-16 | 徐州徐工随车起重机有限公司 | A kind of hydraulic control system of the high-altitude operation vehicle of ratio throttle grverning |
| CN206830555U (en) * | 2017-06-15 | 2018-01-02 | 河南卫华特种车辆有限公司 | A kind of high-altitude system watt car and its electric proportional hydraulic system |
-
2017
- 2017-06-15 CN CN201710450365.8A patent/CN107435665A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202249846U (en) * | 2011-10-13 | 2012-05-30 | 中国石油天然气股份有限公司 | Hydraulic control system for continuous pipe snubbing unit |
| CN102788055A (en) * | 2012-08-07 | 2012-11-21 | 徐工集团工程机械股份有限公司 | Hydraulic system of wrecker |
| CN203558743U (en) * | 2013-06-05 | 2014-04-23 | 长沙桑尼重工机械有限公司 | Intelligent remote control lorry-mounted crane |
| CN106122157A (en) * | 2016-08-31 | 2016-11-16 | 徐州徐工随车起重机有限公司 | A kind of hydraulic control system of the high-altitude operation vehicle of ratio throttle grverning |
| CN206830555U (en) * | 2017-06-15 | 2018-01-02 | 河南卫华特种车辆有限公司 | A kind of high-altitude system watt car and its electric proportional hydraulic system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985464A (en) * | 2019-12-30 | 2020-04-10 | 徐州海伦哲特种车辆有限公司 | Automatic interlocking control system for getting on and off of overhead working truck and control method thereof |
| CN112833058A (en) * | 2021-01-21 | 2021-05-25 | 长沙中联重科环境产业有限公司 | Load-sensitive hydraulic system and hedge trimming equipment |
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