CN107795535A - A kind of scissor aerial work platform and its floating hydraulic control system - Google Patents
A kind of scissor aerial work platform and its floating hydraulic control system Download PDFInfo
- Publication number
- CN107795535A CN107795535A CN201711211765.XA CN201711211765A CN107795535A CN 107795535 A CN107795535 A CN 107795535A CN 201711211765 A CN201711211765 A CN 201711211765A CN 107795535 A CN107795535 A CN 107795535A
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- Prior art keywords
- valve
- floating
- reversal valve
- mouthful
- balanced
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- 239000002828 fuel tank Substances 0.000 claims abstract description 31
- 239000000446 fuel Substances 0.000 claims abstract description 13
- 230000002457 bidirectional effect Effects 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
-
- 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
Abstract
The invention discloses a kind of floating hydraulic control system, including floating cylinder, balanced valve and the first reversal valve being connected with balanced valve；Also include being used to be the floating control pump of the first reversal valve fuel feeding and for the function control pump for holding function valve block fuel feeding；The interface of balanced valve connection floating cylinder is connected respectively the rod chamber and rodless cavity of floating cylinder, the first of the first connecting balanced valve of the first reversal valve, second mouthful of connection fuel tank of the first reversal valve, the 3rd mouthful of connection floating control pump of the first reversal valve；Pipeline between floating control pump and the 3rd mouthful of the first reversal valve is provided with the branch road for being used for connecting fuel tank, and the outlet of the overflow valve on branch road is connected on the connecting line of the first reversal valve and fuel tank.Using floating control pump to the independent fuel feeding of floating system in the application, the reduction heating loss for being capable of larger intensity.Present invention also offers a kind of scissor aerial work platform including said system.
Description
Technical field
The present invention relates to technical field of hydraulic, more specifically to a kind of floating hydraulic control system.In addition,
The invention further relates to a kind of scissor aerial work platform for including above-mentioned floating hydraulic control system.
Background technology
When being walked on the road of injustice, in order to improve the steady comfortableness of vehicle, left and right tire needs according to road scissor
Condition automatic controlled height, compensate the influence of Uneven road.
Now generally by the way of and balancing valve in parallel using two floating cylinders, preferentially drawn by flow control valve from pump
Pressure oil is entered floating cylinder all the way, realizes the automatic compensation to uneven road surface in walking process.
The diesel oil scissor of prior art fluid of function control pump under operating mode of walking is supplied to float trap block, and greatly
Whole flows of part-time function control pump all supply float trap block, and are provided by low pressure relief valve stream fuel tank, fluid pump
Energy all flogged a dead horse for generating heat, cause to be unfavorable for that system effectiveness improves, unfavorable hot environment works long hours etc. asks
Topic, so it is generally necessary to increase radiator, but will so be unfavorable for the control of system cost.
In summary, how to provide a kind of efficiency high, low floating hydraulic control system of generating heat, be current art technology
Personnel's urgent problem to be solved.
The content of the invention
In view of this, it is an object of the invention to provide a kind of floating hydraulic control system, the floating hydraulic control system
Efficiency high, heating are low, can realize more efficient cost control.
It is a further object of the present invention to provide one kind to include above-mentioned scissor aerial work platform.
To achieve these goals, the present invention provides following technical scheme：
A kind of floating hydraulic control system, for the floating compensation of scissor aerial work platform, including floating cylinder, use
Balanced valve from the cavity oil transportation to the floating cylinder and the first reversal valve for being connected with the balanced valve in；Also include being used for
Floating control pump for the first reversal valve fuel feeding and for the function control pump for holding function valve block fuel feeding；
The interface of the balanced valve connection floating cylinder is connected respectively the rod chamber and nothing of the floating cylinder
Rod cavity, the first of first reversal valve connect the first of the balanced valve, second mouthful of connection of first reversal valve
Fuel tank, the 3rd mouthful of connection floating control pump of first reversal valve；
Pipeline between the floating control pump and the 3rd mouthful of first reversal valve, which is provided with, to be used to connect the oil
The branch road of case, overflow valve is provided with the branch road, the outlet of the overflow valve is connected to first reversal valve and the oil
On the connecting line of case.
Preferably, the pipeline between the floating control pump and the 3rd mouthful of first reversal valve is provided with first
Road, the tie point is provided with the pressure-detecting device for the charge oil pressure for being used to detect the floating control pump, when the fuel feeding
When pressure exceeds preset range, the pressure-detecting device carries out pressure alarm.
Preferably, the pipeline between the floating control pump and the 3rd mouthful of first reversal valve is provided with the company of being used to
The second branch road and the 3rd branch road of the fuel tank are connect, second branch road is provided with the first overflow valve, and first overflow valve goes out
Mouth is connected on the connecting line of first reversal valve and the fuel tank, the 3rd branch road series connection second reversal valve and second
Overflow valve, the outlet of second overflow valve are connected on the connecting line of first reversal valve and the fuel tank；
The setup pressure value of first overflow valve is higher than the setup pressure value of second overflow valve.
Preferably, second reversal valve is normally opened reversal valve.
Preferably, first reversal valve includes two-bit triplet reversal valve, and second reversal valve changes including 2/2-way
To valve, the balanced valve includes Bidirectional balanced valve.
Preferably, the floating cylinder includes left floating cylinder and right floating cylinder, and first reversal valve includes first
Left reversal valve and the first right reversal valve, the balanced valve include the first balanced valve and the second balanced valve；
The floating control pump connects the 3rd mouthful of the described first left reversal valve and the first right reversal valve respectively；
The first of the first left reversal valve connects the first of first balanced valve and second balanced valve
First；
Second mouthful of first connection first balanced valve of the first right reversal valve and second balanced valve
Second mouthful；
The 3rd mouthful of first balanced valve and the 4th mouthful of rod chamber and nothing for being connected respectively the left floating cylinder
Rod cavity, the 3rd mouthful of second balanced valve and the 4th mouthful of rodless cavity for being connected respectively the right floating cylinder and has bar
Chamber；
Second mouthful of the first left reversal valve is all connected with the fuel tank with second mouthful of the described first right reversal valve.
Preferably, connected between the function control pump and the holding function valve block by filter.
Preferably, the floating control pump and the function control pump are all connected with same fuel tank, the floating control pump
Be connected between the fuel tank by stop valve and filter, between the function control pump and the fuel tank by stop valve and
Filter connects.
Preferably, the floating control pump and the function control pump are connected with traveling pump.
A kind of scissor aerial work platform, including for controlling the floating hydraulic control system of floating installation, it is described floating
Hydrodynamic pressure control system is the floating hydraulic control system described in above-mentioned any one.
Floating control pump connects the first reversal valve in floating hydraulic control system provided by the invention, is carried to the first reversal valve
For pressure oil, the first reversal valve connecting balanced valve, balanced valve connection floating cylinder, pressure oil is optionally supplied to floating cylinder
Rod chamber and rodless cavity in.Smaller displacement can be selected to the independent fuel feeding of floating system using floating control pump in the application
The pump housing, can both ensure the pressure oil demand of floating system, the flow by overflow valve can be reduced again, being capable of larger intensity
Reduction heating loss, so as to realize more efficient cost control.Present invention also offers one kind to include above-mentioned floating liquid
The scissor aerial work platform of pressure control system.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is the schematic diagram of floating hydraulic control system provided by the present invention.
In Fig. 1：
Floating control pump 1, function control pump 2, the first overflow valve 3, the second overflow valve 4, the first left reversal valve 5, first is right
Reversal valve 10, the first balanced valve 6, the second balanced valve 9, left floating cylinder 7, right floating cylinder 8, the second reversal valve 11, pressure is opened
12 are closed, pump engine 13 of walking.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
The core of the present invention is to provide a kind of floating hydraulic control system, the efficiency high of the floating hydraulic control system, hair
Heat is low, can realize more efficient cost control.Another core of the present invention is to provide a kind of including above-mentioned scissor-type high-altitude work
Industry platform.
Fig. 1 is refer to, Fig. 1 is the schematic diagram of floating hydraulic control system provided by the present invention.
A kind of floating hydraulic control system provided by the invention, the floating for being mainly used in scissor aerial work platform are mended
Repay, including floating cylinder, the balanced valve for the cavity oil transportation to floating cylinder and the first reversal valve being connected with balanced valve；
Also include being used to be the floating control pump 1 of the first reversal valve fuel feeding and for the function control pump for holding function valve block fuel feeding
2。
The interface of balanced valve connection floating cylinder is connected respectively the rod chamber and rodless cavity of floating cylinder, the first commutation
The first of the first connecting balanced valve of valve, second mouthful of connection fuel tank of the first reversal valve, the 3rd mouthful of company of the first reversal valve
Connect floating control pump；
Pipeline between the 3rd mouthful of the reversal valve of floating control pump 1 and first is provided with the branch road for being used for connecting fuel tank, branch
Overflow valve is provided with road, the outlet of overflow valve is connected on the connecting line of the first reversal valve and fuel tank.
It should be noted that floating control pump 1 connects the first reversal valve in the application, pressure is provided to the first reversal valve
Oil, the first reversal valve connecting balanced valve, balanced valve connection floating cylinder, what pressure oil was optionally supplied to floating cylinder has bar
In chamber and rodless cavity.
Due to there is same fluid pump to provide pressure oil, and the oil to floating system and holding function valve block in the prior art
Liquid pump can then be constantly in working condition after plateform system startup, have the characteristics of discharge capacity is big, the working time is long, thus can be
Larger thermal losses is produced at overflow valve.
And using floating control pump 1 to the independent fuel feeding of floating system in the application, the pump housing of smaller displacement can be selected, both
The pressure oil demand of floating system can be ensured, in reduction system by the flow of overflow valve, larger intensity can be capable of again
Heating loss is reduced, so as to realize more efficient cost control.
On the basis of above-described embodiment, set on the pipeline between the 3rd mouthful of the reversal valve of floating control pump 1 and first
There is tie point, tie point is provided with the pressure-detecting device for the charge oil pressure for being used to detect floating control pump 1, works as charge oil pressure
During beyond preset range, pressure-detecting device carries out pressure alarm.
Optionally, above-mentioned pressure-detecting device can be pressure switch 12, refer to Fig. 1, pressure switch 12 is set in Fig. 1
On the first leg, because the pipeline between floating control pump 1 and the 3rd mouthful of the first reversal valve and tie point connect,
So the pressure value measured in tie point can embody the oil pressure numerical value of above-mentioned pipeline, when pressure switch 12 detects numerical value
During beyond preset range, then alarm mode is opened.
In the present embodiment, increase pressure switch detection floating pressure in floating hydraulic control system.If floating control pump
Or floating pipeline goes wrong, when can not provide pressure needed for floating, pressure detection switch sender is simultaneously alarmed, and reminds operator's inspection
Look into status of equipment.Above-mentioned setting more efficiently can carry out failure prompting to operator, avoid the occurrence of breakdown maintenance not in time
Situation.
On the basis of any one above-mentioned embodiment, between the 3rd mouthful of the reversal valve of floating control pump 1 and first
Pipeline is provided with the second branch road and the 3rd branch road for being used to connect fuel tank, and the second branch road is provided with the first overflow valve 3, the first overflow
The outlet of valve 3 is connected on the connecting line of the first reversal valve and fuel tank, and the second reversal valve of the 3rd branch road series connection 11 and second overflows
Valve 4 is flowed, the outlet of the second overflow valve 4 is connected on the connecting line of the first reversal valve and fuel tank；The setting pressure of first overflow valve 3
Force value is higher than the setup pressure value of the second overflow valve 4.
It should be noted that above-mentioned two branch road is provided with overflow valve, the difference of two overflow valves is to set pressure
The difference of value, and the difference of cascaded structure, the second overflow valve 4 are connected with the second reversal valve 11.Optionally, overflow valve can be with
It is configured by way of other branch roads, it is necessary to be coordinated with the use of floating hydraulic control system.
Optionally, the second reversal valve 11 is normally opened reversal valve.It should be noted that even if system is not in quick condition
When, also only the flow of very little passes through float trap block, caused by energy loss will greatly reduce.
On the basis of above-described embodiment, the first reversal valve includes two-bit triplet reversal valve, and the second reversal valve 11 includes
2/2-way reversal valve, balanced valve include Bidirectional balanced valve.
On the basis of any one above-mentioned embodiment, floating cylinder includes left floating cylinder 7 and right floating cylinder 8,
First reversal valve includes the first left 5 and first right reversal valve 10 of reversal valve, and balanced valve includes the first balanced valve 6 and the second balanced valve
9；
Floating control pump 1 connects the 3rd mouthful of the first left 5 and first right reversal valve 10 of reversal valve respectively；
Second mouthful of first the first balanced valve 6 of connection of first left reversal valve 5 and second mouthful of the second balanced valve 9；
The first of first right reversal valve 10 connects the first of the first balanced valve 6 and the first of the second balanced valve 9；
The 3rd mouthful of first balanced valve 6 and the 4th mouthful of rod chamber and rodless cavity for being connected respectively left floating cylinder 7, the
The 3rd mouthful of two balanced valves 9 and the 4th mouthful of rodless cavity and rod chamber for being connected respectively right floating cylinder 8；
Second mouthful of first left reversal valve 5 and second mouthful of the first right reversal valve 10 are all connected with fuel tank.
It should be noted that the single valve body of generally use corresponds to the setting of single floating cylinder, this implementation in the prior art
Two balanced valves are controlled across respectively using two reversal valves in example, two balanced valves are then respectively one to one to floating
Dynamic oil cylinder is controlled, and above-mentioned setting can be controlled to the rod chamber and rodless cavity of left floating cylinder and right floating cylinder.
Optionally, connected between function control pump 2 and holding function valve block by filter.It refer to Fig. 1, work(in Fig. 1
Filter between energy controlling pump 2 and holding function valve block can realize the filtering of the pressure oil to entering holding function valve block.
On the basis of any one above-mentioned embodiment, floating control pump 1 and function control pump 2 are all connected with same oil
Case, connected between floating control pump 1 and fuel tank by stop valve and filter, pass through cut-off between function control pump 2 and fuel tank
Valve connects with filter.
Optionally, floating control pump 1 and function control pump 2 are connected with traveling pump 13.
In a specific embodiment provided by the present invention, floating hydraulic control system includes 1 floating control pump 1,1
The second overflow valve 4 of individual the first overflow valve 3,1 of function control pump 2,1, the first left reversal valve 5, the first right reversal valve 10, first
Balanced valve, the second balanced valve 9, left floating cylinder 7, right floating cylinder 8,1 the second reversal valves, 11,1 pressure switch 12, and
Multiple stop valves and filter.Wherein, pressure switch 12, multiple stop valves and filter are optional setting structure.
It refer to Fig. 1, outlet and pressure switch 12, the import of the first overflow valve 3, the second reversal valve of floating control pump 1
11 import, the first left reversal valve 5 connect with the 3. mouth of the first right reversal valve 10.
The outlet of second reversal valve 11 is connected with the import of the second overflow valve 4, outlet, the second overflow of the first overflow valve 3
The 2. mouth of the outlet of valve 4, the 2. mouth of the first left reversal valve 5 and the first right reversal valve 10 is connected with fuel tank T mouths.
The 1. mouth of first left reversal valve 5 is connected with the 2. mouth of the first balanced valve 6 and the second balanced valve 9, the first right reversal valve
10 1. mouth is connected with the 1. mouth of the first balanced valve 6 and the second balanced valve 9, and the 3. mouth of the first balanced valve 6,4. mouth floats with a left side respectively
The rod chamber of dynamic oil cylinder 7, rodless cavity connection, the 3. mouth of the second balanced valve 9,4. mouth respectively the rodless cavity with right floating cylinder 8, have
Rod cavity connects, and function control pump 2 is the function control P1 fuel feeding of function control valve block.
Wherein, the setup pressure value of above-mentioned first overflow valve 3 is higher than the second overflow valve 4.First left reversal valve 5 and first is right
Reversal valve 10 can be two-bit triplet reversal valve, and the second reversal valve 11 can be 2/2-way reversal valve, can also be other shapes
Formula reversal valve.First balanced valve 6 and the second balanced valve 9 can be Bidirectional balanced valve, can also be other forms balanced valve.
Except the floating hydraulic control system that above-mentioned each embodiment is provided, the present invention, which also provides one kind, includes above-mentioned reality
Apply the scissor aerial work platform of floating hydraulic control system disclosed in example, other each portions of the scissor aerial work platform
The structure divided refer to prior art, repeat no more herein.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
Scissor aerial work platform provided by the present invention and its floating hydraulic control system have been carried out in detail above
Introduce.Specific case used herein is set forth to the principle and embodiment of the present invention, the explanation of above example
It is only intended to help the method and its core concept for understanding the present invention.It should be pointed out that the ordinary skill people for the art
For member, under the premise without departing from the principles of the invention, some improvement and modification can also be carried out to the present invention, these improve and
Modification is also fallen into the protection domain of the claims in the present invention.
Claims (10)
1. a kind of floating hydraulic control system, for the floating compensation of scissor aerial work platform, including floating cylinder, it is used for
The balanced valve of cavity oil transportation to the floating cylinder and the first reversal valve being connected with the balanced valve；Characterized in that,
Also include being used for for the floating control pump (1) of the first reversal valve fuel feeding and for the function for holding function valve block fuel feeding
Controlling pump (2)；
The interface of the balanced valve connection floating cylinder is connected respectively the rod chamber and rodless cavity of the floating cylinder,
The first of first reversal valve connects the first of the balanced valve, and second mouthful of first reversal valve connects fuel tank,
The 3rd mouthful of connection floating control pump of first reversal valve；
Pipeline between the floating control pump (1) and the 3rd mouthful of first reversal valve, which is provided with, to be used to connect the fuel tank
Branch road, be provided with overflow valve on the branch road, the outlet of the overflow valve is connected to first reversal valve and the fuel tank
Connecting line on.
2. floating hydraulic control system according to claim 1, it is characterised in that the floating control pump (1) with it is described
Pipeline between the 3rd mouthful of first reversal valve is provided with tie point, and the tie point, which is provided with, to be used to detect the control of floating
The pressure-detecting device of the charge oil pressure of pump (1) processed, when the charge oil pressure exceeds preset range, the pressure-detecting device
Carry out pressure alarm.
3. floating hydraulic control system according to claim 2, it is characterised in that the floating control pump (1) with it is described
Pipeline between the 3rd mouthful of first reversal valve is provided with the second branch road and the 3rd branch road for being used to connect the fuel tank, described
Second branch road is provided with the first overflow valve (3), and the outlet of first overflow valve (3) is connected to first reversal valve and the oil
On the connecting line of case, the 3rd branch road second reversal valve of series connection (11) and the second overflow valve (4), second overflow valve
(4) outlet is connected on the connecting line of first reversal valve and the fuel tank；
The setup pressure value of first overflow valve (3) is higher than the setup pressure value of second overflow valve (4).
4. floating hydraulic control system according to claim 3, it is characterised in that second reversal valve (11) is normally opened
Reversal valve.
5. floating hydraulic control system according to claim 1, it is characterised in that first reversal valve includes two three
Logical reversal valve, second reversal valve (11) include 2/2-way reversal valve, and the balanced valve includes Bidirectional balanced valve.
6. the floating hydraulic control system according to claim 1 to 5 any one, it is characterised in that the floating cylinder
Including left floating cylinder (7) and right floating cylinder (8), first reversal valve includes the first left reversal valve (5) and first right side is changed
To valve (10), the balanced valve includes the first balanced valve (6) and the second balanced valve (9)；
The floating control pump (1) connects the 3rd mouthful of the described first left reversal valve (5) and the first right reversal valve (10) respectively；
The first of the first left reversal valve (5) connects the first of first balanced valve (6) and second balanced valve
(9) first；
The first of the first right reversal valve (10) connects second mouthful and second balanced valve of first balanced valve (6)
(9) second mouthful；
3rd mouthful and the 4th mouthful rod chamber for being connected respectively the left floating cylinder (7) of first balanced valve (6) and
Rodless cavity, the 3rd mouthful and the 4th mouthful rodless cavity for being connected respectively the right floating cylinder (8) of second balanced valve (9)
And rod chamber；
Second mouthful of the first left reversal valve (5) is all connected with the fuel tank with second mouthful of the described first right reversal valve (10).
7. floating hydraulic control system according to claim 6, it is characterised in that the function control pump (2) with it is described
Connected between holding function valve block by filter.
8. floating hydraulic control system according to claim 7, it is characterised in that the floating control pump (1) and described
Function control pump (2) is all connected with same fuel tank, passes through stop valve and filtering between the floating control pump (1) and the fuel tank
Device connects, and is connected between the function control pump (2) and the fuel tank by stop valve and filter.
9. floating hydraulic control system according to claim 8, it is characterised in that the floating control pump (1) and described
Function control pump (2) is connected with traveling pump (13).
10. a kind of scissor aerial work platform, including for controlling the floating hydraulic control system of floating installation, its feature exists
In the floating hydraulic control system is the floating hydraulic control system described in claim 1 to 9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711211765.XA CN107795535A (en) | 2017-11-28 | 2017-11-28 | A kind of scissor aerial work platform and its floating hydraulic control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711211765.XA CN107795535A (en) | 2017-11-28 | 2017-11-28 | A kind of scissor aerial work platform and its floating hydraulic control system |
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| CN108612689A (en) * | 2018-07-13 | 2018-10-02 | 北京亿美博科技有限公司 | A kind of hydraulic control system and method for large-angle slewing mechanism |
| CN109340205A (en) * | 2018-12-21 | 2019-02-15 | 北京三智造科技有限公司 | It can floating cylinder and engineering machinery |
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