CN106122157A - A kind of hydraulic control system of the high-altitude operation vehicle of ratio throttle grverning - Google Patents
A kind of hydraulic control system of the high-altitude operation vehicle of ratio throttle grverning Download PDFInfo
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- CN106122157A CN106122157A CN201610773576.0A CN201610773576A CN106122157A CN 106122157 A CN106122157 A CN 106122157A CN 201610773576 A CN201610773576 A CN 201610773576A CN 106122157 A CN106122157 A CN 106122157A
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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
- 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
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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
- 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
- F15B13/021—Valves for interconnecting the fluid chambers of an actuator
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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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/255—Flow control functions
-
- 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
- F15B2211/40—Flow control
- F15B2211/405—Flow control characterised by the type of flow control means or valve
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses the hydraulic control system of the high-altitude operation vehicle of a kind of ratio throttle grverning, including pump group, connect the control banked direction control valves of getting on the bus of executive component of getting on the bus, and connect the control banked direction control valves of getting off of executive component of getting off；Control banked direction control valves of getting on the bus includes electromagnetic proportion throttle and is connected to the solenoid directional control valve group of getting on the bus of electromagnetic proportion throttle oil-out；Control banked direction control valves of getting off includes two position three-way valve and is connected to the supporting leg control valve group of one of them oil-out of two position three-way valve；Another oil-out of two position three-way valve connects the oil-in of electromagnetic proportion throttle.The invention has the beneficial effects as follows: 1. ratio throttle grverning is applied to the high-altitude operation vehicle of middle Semen setariae number, reduces cost.2. eliminate traditional load sensitive device, improve smooth operation.3. there is the feature of low pressure self-unloading, it is not necessary to extra unloader.
Description
Technical field
The invention belongs to high-altitude operation vehicle technical field, be specifically related to the liquid of the high-altitude operation vehicle of a kind of ratio throttle grverning
Pressure control system, is particularly well-suited to the hydraulic control system of the high-altitude operation vehicle of the adjustable middle Semen setariae number of speed.
Background technology
Along with the fast development of national economy and country are to safety in production, the pay attention to day by day of civilized construction, work high above the ground
Car is widely used in the fields such as municipal administration, electric power, petrochemical industry, communication.Owing to middle Semen setariae number high-altitude operation vehicle acquisition cost is relatively low, should
Relatively extensive by scope, main based on middle Semen setariae number work high above the ground in the market.Middle Semen setariae number high-altitude operation vehicle exist with
Lower feature: 1. high-altitude operation vehicle is manned platform, stationarity requires higher, it is to avoid because occurring shake in operation process and running not
Steadily affect comfortableness and the safety of operator.2. the high-altitude operation vehicle of Semen setariae number in, operation height is low, jib length
Short, thus less demanding to the velocity control accuracy of operation action tank.3. high-altitude operation vehicle great majority are lease client at present,
Cost sensitivity to high-altitude operation vehicle.At present, the hydraulic control system of middle Semen setariae number high-altitude operation vehicle on market, can not be complete
Meet These characteristics.
Patent CN87215075 control oil circuit of altitude operating vehicle, it is provided that a kind of high altitude vehicle is got on or off the bus the most steerable
Hydraulic control system, this system uses two groups of manual throttle reversal valves, valve A and valve B.Valve A is placed in and gets off, it is achieved manipulation of getting off,
Valve B is placed in and gets on the bus, it is achieved manipulation of getting on the bus.This patent has the advantage that and can realize manipulation of getting on or off the bus, and has speed governing merit
Can, and low cost.This patent there is also certain problem, and owing to valve B is positioned at work platforms of getting on the bus, pipeline arranges complexity, impact
The outward appearance of high-altitude operation vehicle and intensity.In addition get on the bus the unloading condition handled time, oil flows through valve B from valve A, then is flowed back to by valve B
Fuel tank, due to valve B, to be positioned at work platforms of getting on the bus longer with the pipeline that valve A and fuel tank are connected, and the pressure loss is big, system energy consumption
Height, use cost is high.
The hydraulic control system of a patent CN02263150 high-altitude operation vehicle, first controls the solenoid directional control valve of corresponding actions
Commutation, then controls to flow into the flow of executive component by the input electrical signal of regulation three energising proportional velocity regulating valve, reaches control
The speed of executive component processed.This patent has the advantage that and realizes getting on or off the bus manipulations by electrical control, and electricity proportionality velocity modulation is controlled
Precision processed is high, and pressure unloading is low.This patent there is also certain problem, and speed regulating control precision is high, is by threeway proportionality velocity modulation
Valve carries out pressure compensation, loads when jib runs and changes, and the pressure compensator of threeway proportional velocity regulating valve occurs the most accordingly
Motion, easily causes the instability of system, causes jib to be shaken, affect comfortableness and the safety of operator.In addition should
Patent uses threeway proportional velocity regulating valve cost of a relatively high.
Summary of the invention
It is an object of the invention to overcome deficiency of the prior art, it is provided that the high-altitude operation vehicle of a kind of ratio throttle grverning
Hydraulic control system, have that stationarity is good, the advantage of low cost.
For solving prior art problem, the invention discloses the hydraulic control of the high-altitude operation vehicle of a kind of ratio throttle grverning
System, including pump group, connects the control banked direction control valves of getting on the bus of executive component of getting on the bus, and connects the control of getting off of executive component of getting off
Banked direction control valves；
Control banked direction control valves of getting on the bus includes electromagnetic proportion throttle and the electromagnetism of getting on the bus being connected to electromagnetic proportion throttle oil-out changes
To valve group；
Control banked direction control valves of getting off includes two position three-way valve and is connected to the supporting leg control valve of one of them oil-out of two position three-way valve
Group；
Another oil-out of two position three-way valve connects the oil-in of electromagnetic proportion throttle；The upper work of two position three way directional control valve
Time, the pressure oil that pump group exports is transported to get on the bus control banked direction control valves with control to get on the bus executive component, the next work time, by pump group
The pressure oil of output is transported to supporting leg control valve group to control to get off executive component.
Preferably, pump group has high pressure filter with getting off to be connected between control banked direction control valves.
Preferably, control to be connected on banked direction control valves and the oil return circuit controlled between banked direction control valves and fuel tank of getting off to have back getting on the bus
Oil strainer.
Preferably, executive component of getting on the bus include being connected to getting on the bus solenoid directional control valve group every pair of driving mouth on get on the bus
Rotary loop, underarm luffing loop, upper arm luffing loop, winch lifting loop, forearm luffing loop and crane arm stretch loop.
Preferably, upper-part rotation loop includes being connected to first group of rotary motor balanced valve driven on mouth and revolution horse
Reach；Underarm luffing loop includes being connected to second group of underarm luffing balanced valve driven on mouth and underarm luffing hydraulic cylinder；Upper arm
Luffing loop includes being connected to the 3rd group of upper arm luffing balanced valve driven on mouth and upper arm luffing hydraulic cylinder；Forearm luffing loop
Including being connected to the 4th group of one-way balance valve driven on mouth and forearm luffing hydraulic cylinder；Winch lifting loop includes being connected to the
Five drive the one-way balance valve on mouth and winch motor；It is unidirectional flat that crane arm stretches that loop includes being connected on the 6th driving mouth
Weighing apparatus valve and crane arm telescopic oil cylinder.
Preferably, executive component of getting off includes that being connected to supporting leg control valve group often organizes the horizontal support legs oil driven on mouth
Cylinder and vertical support oil cylinder.
Preferably, one group of supporting leg control valve group driving mouth respectively with horizontal support legs oil cylinder and the big chamber of vertical support oil cylinder
Connect, another group driving mouth passes through the two-way shut-off valve loculus respectively with horizontal support legs oil cylinder and vertical support oil cylinder and is connected.
Preferably, connect respectively and be additionally provided with bidirectional hydraulic lock on the big chamber of vertical support oil cylinder and the oil circuit of loculus.
Preferably, pump group includes the hydraulic pump providing hydraulic power in parallel and donkey pump.
The invention have the benefit that
1. ratio throttle grverning is applied to the high-altitude operation vehicle of middle Semen setariae number, reduces cost.Utilize the control of by-pass throttle
Mode, is provided with electromagnetic proportion throttle, it is simple to staff operates at turntable and work platforms in control banked direction control valves of getting on the bus
Joystick carries out speed controlling to the system of getting on the bus, and reduces the control cost of system.
2. eliminate traditional load sensitive device, improve smooth operation.Use electromagnetic proportion throttle without
Pressure compensator, loads during actuator movement and changes, and also occurs from the flow of electromagnetic proportion throttle output
Change, although the velocity control accuracy of executive component decreases, but load change band during absorbing actuator movement
The impact come, improves system traveling comfort.
3. there is the feature of low pressure self-unloading, it is not necessary to extra unloader.When two-position three-way hand change valve is transformed into
After getting on the bus, when control banked direction control valves of getting on the bus does not operates, the fluid of hydraulic system can pass through the direct oil sump tank of electromagnetic proportion throttle, contracting
Short oil return circuit, reduces the pressure unloading of system.
Accompanying drawing explanation
Fig. 1 is the hydraulic schematic diagram of the present invention.
Reference:
1 fuel tank；2 return filters；3 hydraulic pumps；4 donkey pumps；5 high pressure filters；6 get off control banked direction control valves；6-1 two-position three way
Valve；6-2 supporting leg control valve group；7 two-way shut-off valve；8 bidirectional hydraulic locks；9 horizontal support legs oil cylinders；10 vertical support oil cylinders；On 11
Car controls banked direction control valves；11-1 electromagnetic proportion throttle；11-2 gets on the bus solenoid directional control valve group；12 upper-part rotation loops；12-1 turntable
Rotary motor balanced valve；12-2 rotary motor；13 underarm luffing loops；13-1 underarm luffing balanced valve；13-2 underarm luffing liquid
Cylinder pressure；14 upper arm luffing loops；14-1 upper arm luffing balanced valve；14-2 upper arm luffing hydraulic cylinder；15 forearm luffing loops；15-1
One-way balance valve；15-2 forearm luffing hydraulic cylinder；16 winch lifting loops；16-1 one-way balance valve；16-2 winch motor；17
Weighing arm stretches loop；17-1 one-way balance valve；17-2 crane arm telescopic oil cylinder.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings.Following example are only used for clearly illustrating the present invention
Technical scheme, and can not limit the scope of the invention with this.
As it is shown in figure 1, the hydraulic control system of high-altitude operation vehicle based on ratio throttle grverning is specifically configured to: fuel tank 1,
Return filter 2, hydraulic pump 3, donkey pump 4, high pressure filter 5, get off control banked direction control valves 6, two-way shut-off valve 7, bidirectional hydraulic
Lock 8, horizontal support legs oil cylinder 9, vertical support oil cylinder 10, get on the bus control banked direction control valves 11, upper-part rotation loop 12, underarm luffing loop
13, upper arm luffing loop 14, forearm luffing loop 15, winch lifting loop 16 and crane arm stretch loop 17.
This hydraulic control system, is provided power by hydraulic pump 3 and/or donkey pump 4, is transported to by check valve by pressure oil
Get off and control banked direction control valves 6.
Described control banked direction control valves 6 of getting off, is made up of two position three way directional control valve 6-1 and supporting leg control valve group 6-2.
Described two position three way directional control valve 6-1, is divided into upper vehicle control and lower vehicle control two by hydraulic system
Point, make vehicle control and lower vehicle control realize interlock function.During the upper work of two position three way directional control valve 6-1, will pressure
Power oil is transported to vehicle control, i.e. get on the bus control banked direction control valves and each executive component of getting on the bus；During the next work, by pressure oil
It is transported to lower vehicle control, i.e. get off control banked direction control valves and each executive component of getting off.
Described upper vehicle control, including control banked direction control valves 11 and the executive component of getting on the bus.
Described control banked direction control valves 11 of getting on the bus, including electromagnetic proportion throttle 11-1 and solenoid directional control valve group 11-2 of getting on the bus.
When the work of solenoid directional control valve group 11-2 of getting on the bus joins dead electricity attonity, electromagnetic proportion throttle 11-1 dead electricity, fluid is by side
The whole oil sump tank of electromagnetic proportion throttle 11-1 1 that road connects.When the work of solenoid directional control valve group 11-2 of getting on the bus joins to obtain electric work
Time, controlled the opening degree of electromagnetic proportion throttle 11-1 by the size controlling input signal, and then control to enter electromagnetism ratio
The return flow of example choke valve 11-1.Owing to the flow of system input is certain, thus control entrance and get on the bus solenoid directional control valve group
The flow of the work connection of 11-2, the speed controlling of each performance loop that reached to get on the bus.
Described electromagnetic proportion throttle 11-1, without pressure compensator, during actuator movement, load occurs
Change, also changes, although the velocity control accuracy of executive component is from the flow of electromagnetic proportion throttle 11-1 output
Reduce, but the impact that during absorbing actuator movement, load change brings, improve system traveling comfort.
Described solenoid directional control valve group 11-2 of getting on the bus has many groups and drives mouth A1 and B1, driving mouth A2 and B2, driving mouth A3
With B3, driving mouth A4 and B4, driving mouth A5 and B5 and driving mouth A6 and B6.
First group drives mouth A1 and B1 to connect rotation of rotary table motor balancing valve 12-1, rotary motor 12-2, forms above-mentioned turn
Platform rotary loop.
Second drive mouth A2 and B2 connect underarm luffing balanced valve 13-1 and underarm luffing hydraulic cylinder 13-2, form above-mentioned under
Arm luffing loop 13.
3rd drives mouth A3 and B3 to connect upper arm luffing balanced valve 14-1 and upper arm luffing hydraulic cylinder 14-2, forms on above-mentioned
Arm luffing loop 14.
4 wheel driven open one's mouth A4 and B4 connect one-way balance valve 15-1 and forearm luffing hydraulic cylinder 15-2, form above-mentioned forearm become
Width loop 15.
5th drives mouth A5 and B5 to connect one-way balance valve 16-1 and winch motor 16-2, forms above-mentioned winch lifting loop
16。
6th drives mouth A6 and B6 to connect one-way balance valve 17-1 and crane arm telescopic oil cylinder 17-2, forms above-mentioned crane arm
Flexible loop 17.
Supporting leg control valve group 6-2 has many groups and drives mouth a1 and b1, driving mouth a2 and b2, driving mouth a3 and b3, driving mouth
A4 and b4 and driving mouth H.
Mouth a1 and b1, driving mouth a2 and b2, driving mouth a3 and b3 and driving mouth a4 and b4 is driven to connect level respectively and prop up
Lower limb oil cylinder and the big chamber of vertical support oil cylinder, drive mouth H by two-way shut-off valve 7 respectively with horizontal support legs oil cylinder and vertical leg
The loculus of oil cylinder connects.
When two-way shut-off valve 7 obtains electric, cut off the public oil circuit of support oil cylinder loculus.When get on the bus work time, if getting off appearance
During maloperation, support oil cylinder oil circuit is locked out, and is effectively protected staff and the safety of equipment on high-altitude operation vehicle.
Control to be connected on banked direction control valves 11 and the oil return circuit controlled between banked direction control valves 6 and fuel tank 1 of getting off have oil return getting on the bus
Filter 2.
The operation principle of the present invention and process
Before high-altitude operation vehicle carries out work high above the ground, first operation two position three way directional control valve 6-1 so that it is the next work, now pressure
Oil circuit communicates with supporting leg control valve group 6-2, controls landing leg stretching by supporting leg control valve group 6-2.
When high-altitude operation vehicle carries out work high above the ground, first operation two position three way directional control valve 6-1 so that it is upper work, then
By operation get on the bus solenoid directional control valve group 11-2 commutation connection control rotary loop, underarm luffing loop, upper arm luffing respectively
Loop, forearm luffing loop, winch lifting loop and crane arm stretch loop.Work when solenoid directional control valve group 11-2 of getting on the bus
When joining electric, by controlling the opening degree of electromagnetic proportion throttle 11-1, control to enter the flow controlling loop, reach speed governing
Function.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For Yuan, on the premise of without departing from the technology of the present invention principle, it is also possible to make some improvement and deformation, these improve and deformation
Also should be regarded as protection scope of the present invention.
Claims (9)
1. a hydraulic control system for the high-altitude operation vehicle of ratio throttle grverning, including pump group, connects executive component of getting on the bus
Get on the bus control banked direction control valves, and connect the control banked direction control valves of getting off of executive component of getting off, it is characterised in that:
Control banked direction control valves of getting on the bus includes electromagnetic proportion throttle and the electromagnetism of getting on the bus being connected to electromagnetic proportion throttle oil-out changes
To valve group；
Control banked direction control valves of getting off includes two position three-way valve and is connected to the supporting leg control valve of one of them oil-out of two position three-way valve
Group；
Another oil-out of two position three-way valve connects the oil-in of electromagnetic proportion throttle；The upper work of two position three way directional control valve
Time, the pressure oil that pump group exports is transported to get on the bus control banked direction control valves with control to get on the bus executive component, the next work time, by pump group
The pressure oil of output is transported to supporting leg control valve group to control to get off executive component.
The hydraulic control system of the high-altitude operation vehicle of a kind of ratio throttle grverning the most according to claim 1, its feature exists
In: pump group has high pressure filter with getting off to be connected between control banked direction control valves.
The hydraulic control system of the high-altitude operation vehicle of a kind of ratio throttle grverning the most according to claim 1, its feature exists
In: control to be connected on banked direction control valves and the oil return circuit controlled between banked direction control valves and fuel tank of getting off have return filter getting on the bus.
The hydraulic control system of the high-altitude operation vehicle of a kind of ratio throttle grverning the most according to claim 1, its feature exists
In: executive component of getting on the bus include being connected to getting on the bus solenoid directional control valve group every pair of driving mouth on upper-part rotation loop, under
Arm luffing loop, upper arm luffing loop, forearm luffing loop, winch lifting loop and crane arm stretch loop.
The hydraulic control system of the high-altitude operation vehicle of a kind of ratio throttle grverning the most according to claim 4, its feature exists
In: upper-part rotation loop includes being connected to first group of rotary motor balanced valve driven on mouth and rotary motor；Underarm luffing returns
Road includes being connected to second group of underarm luffing balanced valve driven on mouth and underarm luffing hydraulic cylinder；Upper arm luffing loop includes even
It is connected on the 3rd group of upper arm luffing balanced valve driven on mouth and upper arm luffing hydraulic cylinder；Forearm luffing loop includes being connected to the 4th
Group drives the one-way balance valve on mouth and forearm luffing hydraulic cylinder；Winch lifting loop includes the list being connected on the 5th driving mouth
To balanced valve and winch motor；Crane arm loop of stretching includes being connected to the one-way balance valve on the 6th driving mouth and crane arm is stretched
Contracting oil cylinder.
The hydraulic control system of the high-altitude operation vehicle of a kind of ratio throttle grverning the most according to claim 1, its feature exists
In: executive component of getting off includes that being connected to supporting leg control valve group often organizes the horizontal support legs oil cylinder on driving mouth and vertical leg
Oil cylinder.
The hydraulic control system of the high-altitude operation vehicle of a kind of ratio throttle grverning the most according to claim 6, its feature exists
In: a group of supporting leg control valve group drives the mouth big chamber respectively with horizontal support legs oil cylinder and vertical support oil cylinder to be connected, another group
Drive mouth to pass through the two-way shut-off valve loculus respectively with horizontal support legs oil cylinder and vertical support oil cylinder to be connected.
The hydraulic control system of the high-altitude operation vehicle of a kind of ratio throttle grverning the most according to claim 6, its feature exists
In: connect respectively and be additionally provided with bidirectional hydraulic lock on the big chamber of vertical support oil cylinder and the oil circuit of loculus.
The hydraulic control system of the high-altitude operation vehicle of a kind of ratio throttle grverning the most according to claim 1, its feature exists
In: pump group includes the hydraulic pump providing hydraulic power in parallel and donkey pump.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610773576.0A CN106122157A (en) | 2016-08-31 | 2016-08-31 | A kind of hydraulic control system of the high-altitude operation vehicle of ratio throttle grverning |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610773576.0A CN106122157A (en) | 2016-08-31 | 2016-08-31 | A kind of hydraulic control system of the high-altitude operation vehicle of ratio throttle grverning |
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| Publication Number | Publication Date |
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| CN106122157A true CN106122157A (en) | 2016-11-16 |
Family
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| CN201610773576.0A Pending CN106122157A (en) | 2016-08-31 | 2016-08-31 | A kind of hydraulic control system of the high-altitude operation vehicle of ratio throttle grverning |
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| CN107435665A (en) * | 2017-06-15 | 2017-12-05 | 河南卫华特种车辆有限公司 | High-altitude system watt car and its electric proportional hydraulic system |
| CN107435666A (en) * | 2017-06-15 | 2017-12-05 | 河南卫华特种车辆有限公司 | High-altitude system watt car and its pump hydraulic system |
| CN108518387A (en) * | 2018-03-27 | 2018-09-11 | 上海朗畏机电科技有限公司 | A kind of hydraulic interlock control system |
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