CN107131164A - The hydraulic control system and method for elevating mechanism - Google Patents
The hydraulic control system and method for elevating mechanism Download PDFInfo
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- CN107131164A CN107131164A CN201710370037.7A CN201710370037A CN107131164A CN 107131164 A CN107131164 A CN 107131164A CN 201710370037 A CN201710370037 A CN 201710370037A CN 107131164 A CN107131164 A CN 107131164A
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- Prior art keywords
- oil
- hydraulic
- supply loop
- fluid port
- hydraulic fluid
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/22—Synchronisation of the movement of two or more servomotors
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- 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
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
- B66F7/16—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks
- B66F7/20—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks by several jacks with means for maintaining the platforms horizontal during movement
-
- 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
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
-
- 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
- F15B2211/78—Control of multiple output members
- F15B2211/782—Concurrent control, e.g. synchronisation of two or more actuators
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention provides a kind of hydraulic control system of elevating mechanism and method, including：Fuel tank, hydraulic pump, switching switch, oil supply loop and multiple oil cylinders；Oil in fuel tank is delivered to oil transportation outlet by hydraulic pump, and oil transportation outlet is connected with one end of oil supply loop, and the oil pocket of the other end of oil supply loop respectively with the multiple oil cylinder is connected.The oil supply loop includes the first oil supply loop and the second oil supply loop, and oil transportation outlet is connected with the first hydraulic fluid port or the docking of the second hydraulic fluid port, and the first hydraulic fluid port is one end of the first oil supply loop, and the second hydraulic fluid port is one end of the second oil supply loop；The other end of first oil supply loop is connected with the rod chamber of each oil cylinder, and the other end of the second oil supply loop is connected with the rodless cavity of each oil cylinder；The switching switch control oil transportation outlet is switched between the first hydraulic fluid port and the second hydraulic fluid port.The present invention ensure that elevating mechanism hoistable platform can steadily synchronous lifting or decline, reasonable integral structure is simple to operate.
Description
Technical field
The present invention relates to hydraulic circuit control technology field, in particular it relates to hydraulic control system and the side of elevating mechanism
Method.
Background technology
The previous hydraulicefficiency elevation structure of mesh is using a hydraulic pump and hydraulic circuit control lifting, by multiple hydraulic oil
Cylinder composition production line or equipment in, often easily occur oil cylinder operation it is asynchronous, cause hoistable platform to tilt, it is impossible to ensure peace
Full production.And in the lifting process of equipment, generally using hand-operated direction valve control, until hoist cylinder in place after ability
Reversal valve is unclamped, operates more complicated, artificial operational error easily occurs.
The content of the invention
For defect of the prior art, it is an object of the invention to provide a kind of hydraulic control system of elevating mechanism and side
Method.
In a first aspect, the hydraulic control system of the elevating mechanism provided according to embodiments of the present invention, including：Fuel tank, hydraulic pressure
Pump, switching switch, oil supply loop and multiple oil cylinders；The oil transportation outlet that oil in the fuel tank is delivered to by hydraulic pump, institute
State oil transportation outlet with one end of oil supply loop to be connected, the oil pocket phase of the other end of the oil supply loop respectively with the multiple oil cylinder
Even；Wherein：
The oil supply loop includes the first oil supply loop and the second oil supply loop, oil transportation outlet and the first hydraulic fluid port or the
The docking of two hydraulic fluid ports is connected, and first hydraulic fluid port is one end of the first oil supply loop, and second hydraulic fluid port is the second oil supply loop
One end；The other end of first oil supply loop is connected with the rod chamber of each oil cylinder, the other end of second oil supply loop
Connected with the rodless cavity of each oil cylinder；Cut between the first hydraulic fluid port and the second hydraulic fluid port the switching switch control oil transportation outlet
Change.
Alternatively, cleaner is additionally provided with the pipeline between the fuel tank and hydraulic pump, the cleaner is used for oil
The oil of case output carries out filtration treatment.
Alternatively, overflow valve and pressure gauge are additionally provided with the pipeline between the hydraulic pump and oil transportation outlet, institute
The oil pressure that pressure gauge is used to monitor oil transportation outlet is stated, the overflow valve is used for the work pressure for adjusting oil transportation outlet section hydraulic pressure of pipe line oil
Power.
Alternatively, the switching switch includes：Two-position three way magnetic valve, when elevating mechanism, which is in, rises working condition,
The first coil of two-position three way magnetic valve is powered, and the oil transportation outlet is docked with the first hydraulic fluid port to be connected, and the hydraulic pump is by fuel tank
The oil of middle extraction is conveyed to the rod chamber of each oil cylinder with preset pressure；When elevating mechanism is in descent mode, two
Second coil electricity of three-way magnetic valve, the oil transportation outlet is connected with the docking of the second hydraulic fluid port, and the hydraulic pump will be taken out in fuel tank
The oil gone out is conveyed to the rodless cavity of each oil cylinder with preset pressure.
Alternatively, in first oil supply loop hydraulic control list is provided between the first hydraulic fluid port and the oil inlet of each oil cylinder
To valve and one-way speed-regulating valve, the hydraulic control one-way valve is used for the conveying direction for limiting oil, and the one-way speed-regulating valve is used to adjust oil
Transporting velocity.
Alternatively, in second oil supply loop unidirectional tune is provided between the second hydraulic fluid port and the oil inlet of each oil cylinder
Fast valve, the one-way speed-regulating valve is used for the transporting velocity for adjusting oil.
Alternatively, in addition to：Branch road is lifted, the lifting branch road includes：Shuttle valve, two imports of the shuttle valve respectively with
The second hydraulic fluid port connection in the first hydraulic fluid port, the second oil supply loop in first oil supply loop, the outlet of the shuttle valve 8 is connected to pressure
Power is switched.
Alternatively, in addition to：Electric control module, the electric control module includes：Rise button, decline button and
Controller；The input for rising button, declining button and the equal access controller of pressure switch；The controller passes through upper
Rise button, the switching signal control switching switch of decline button is switched between the first hydraulic fluid port and the second hydraulic fluid port.
Second aspect, the hydraulic control method of the elevating mechanism provided according to the present invention, including apply above-mentioned first aspect
Any one of elevating mechanism hydraulic control system carry out hydraulic control.
According to above-described embodiment, the present invention in oil supply loop by setting switching switch to realize to multiple oil cylinder oil inlets
The switching of mouth, when elevating mechanism, which is in, rises working condition, fuel tank send oil by the first hydraulic fluid port to the rod chamber of each oil cylinder；
When elevating mechanism is in decline state, fuel tank send oil by the second hydraulic fluid port to the rodless cavity of each oil cylinder；So as to ensure lifting
The hoistable platform of mechanism can steadily synchronous lifting or decline, reasonable integral structure is simple to operate.
Brief description of the drawings
By reading the detailed description made with reference to the following drawings to non-limiting example, further feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 implements the structural representation of the hydraulic control system of an elevating mechanism provided for the present invention；
Fig. 2 implements the structural representation of the hydraulic control system of two elevating mechanisms provided for the present invention.
In figure：
11- fuel tanks；
12- cleaners；
13- hydraulic pumps；
14- pressure gauges；
2- overflow valves；
3- two-position three way magnetic valves；
The first coil of 31- two-position three way magnetic valves；
Second coil of 32- two-position three way magnetic valves；
The hydraulic control one-way valves of 41- first；
The hydraulic control one-way valves of 42- second；
The oil cylinders of 61- first；
The oil cylinders of 62- second；
8- shuttle valves；
The one-way speed-regulating valves of 91- first；
The one-way speed-regulating valves of 92- second；
The one-way speed-regulating valves of 93- the 3rd；
The one-way speed-regulating valves of 94- the 4th.
Embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that to the ordinary skill of this area
For personnel, without departing from the inventive concept of the premise, some changes and improvements can also be made.These belong to the present invention
Protection domain.
The hydraulic control system of the elevating mechanism provided according to the present invention, including：Fuel tank 11, hydraulic pump 13, switching switch,
Oil supply loop and multiple oil cylinders；The oil transportation outlet that oil in the fuel tank 11 is delivered to by hydraulic pump 13, the oil transportation goes out
Mouthful it is connected with one end of oil supply loop, the oil pocket of the other end of the oil supply loop respectively with the multiple oil cylinder is connected；Wherein：
The oil supply loop includes the first oil supply loop and the second oil supply loop, oil transportation outlet and the first hydraulic fluid port A or
Second hydraulic fluid port B docking are connected, and the first hydraulic fluid port A is one end of the first oil supply loop, and the second hydraulic fluid port B returns for the second fuel feeding
The one end on road；The other end of first oil supply loop is connected with the rod chamber of each oil cylinder, second oil supply loop it is another
One end is connected with the rodless cavity of each oil cylinder；The switching switch control oil transportation outlet is between the first hydraulic fluid port A and the second hydraulic fluid port B
Switch over.
In the present embodiment, the switching to multiple oil cylinder oil inlets mouthful is realized by setting switching switch in oil supply loop,
When elevating mechanism, which is in, rises working condition, fuel tank send oil by the first hydraulic fluid port A to the rod chamber of each oil cylinder；Work as lift
When structure is in decline state, fuel tank send oil by the second hydraulic fluid port B to the rodless cavity of each oil cylinder；So as to ensure the liter of elevating mechanism
Drop platform can steadily synchronous lifting or decline, reasonable integral structure is simple to operate.
Further, cleaner 12, the cleaner are additionally provided with the pipeline between the fuel tank 11 and hydraulic pump 13
12 are used to carry out filtration treatment to the oil that fuel tank 11 is exported.
The oil provided in the present embodiment using cleaner 12 fuel tank carries out filter cleaning processing, to lift hydraulic oil
Quality.
Further, overflow valve 2 and pressure are additionally provided with the pipeline between the hydraulic pump 13 and oil transportation outlet
Table 14, the pressure gauge 14 is used for the oil pressure for monitoring oil transportation outlet, and the overflow valve 2 is used to adjust oil transportation outlet section hydraulic pressure of pipe line
The operating pressure of oil.
The switching switch includes：Two-position three way magnetic valve 3, when elevating mechanism, which is in, rises working condition, two three
The first coil 31 of three-way electromagnetic valve is powered, and oil transportation outlet is docked with the first hydraulic fluid port A to be connected, and the hydraulic pump 13 is by fuel tank 11
The oil of middle extraction is conveyed to the rod chamber of each oil cylinder with preset pressure；When elevating mechanism is in descent mode, two
Second coil 32 of three-way magnetic valve is powered, and oil transportation outlet is docked with the second hydraulic fluid port B to be connected, and the hydraulic pump 13 is by fuel tank
The oil extracted out in 11 is conveyed to the rodless cavity of each oil cylinder with preset pressure.
In the present embodiment, realized by setting two-position three way magnetic valve 3 in oil supply loop to multiple oil cylinder oil inlets mouthful
Switching, when elevating mechanism be in rise working condition when, the first coil 31 of two-position three way magnetic valve 3 is powered, fuel tank lead to
Cross the first hydraulic fluid port A and send oil to the rod chamber of each oil cylinder；When elevating mechanism is in decline state, two-position three way magnetic valve 3
The second coil 32 be powered, fuel tank send oil by the second hydraulic fluid port B to the rodless cavity of each oil cylinder；So as to ensure the liter of elevating mechanism
Drop platform can steadily synchronous lifting or decline, reasonable integral structure is simple to operate.
The first hydraulic fluid port A in first oil supply loop and be provided between the oil inlet of each oil cylinder hydraulic control one-way valve and
One-way speed-regulating valve, the hydraulic control one-way valve is used for the conveying direction for limiting oil, and the one-way speed-regulating valve is used for the conveying for adjusting oil
Speed.
In the present embodiment, by the first hydraulic fluid port A in fuel tank between the rod chamber oil inlet of oil cylinder be provided with hydraulic control list
To valve, be conducive to hydraulic oil pressurize in cylinder rod chamber, so that elevating mechanism is in normal work, will not be led because of pressure release
Elevating mechanism is caused to land automatically.
The second hydraulic fluid port B in second oil supply loop and one-way speed-regulating valve is provided between the oil inlet of each oil cylinder,
The one-way speed-regulating valve is used for the transporting velocity for adjusting oil.
In the present embodiment, by setting one-way speed-regulating valve in the turnover oil return line of each oil cylinder, adjusted by the way that regulation is unidirectional
The aperture of fast valve, it is ensured that each oil cylinder enters fuel-displaced flow velocity unanimously, while the control oil of hydraulic control one-way valve can also be controlled
Pressure, it is ensured that hydraulic control one-way valve is reversely normally-open, thereby may be ensured that the rodless cavity of each oil cylinder being capable of normally oil return.
The hydraulic control system for the above-mentioned elevating mechanism that the present invention is provided, in addition to：Lift branch road, the lifting branch road bag
Include：Shuttle valve 8, two imports of the shuttle valve 8 respectively with the first hydraulic fluid port A in the first oil supply loop, the second oil supply loop
Second hydraulic fluid port B is connected, and the outlet of the shuttle valve 8 is connected to pressure switch.
The hydraulic control system for the above-mentioned elevating mechanism that the present invention is provided, in addition to：Electric control module, the electric-controlled
Molding block includes：Rise button, decline button and controller；The rising button, decline button and pressure switch connect
Enter the input of controller；The controller is by rising button, declining the switching signal control switching switch of button first
Switched between hydraulic fluid port A and the second hydraulic fluid port B.
In the present embodiment, controller is additionally provided with elevating mechanism, by gathering the switching signal of outside input, so that
Control switching switch (power on/off of two coils of such as two-position three way magnetic valve) is opened and closed, and realizes that autonomous oil cylinder enters
The switching of hydraulic fluid port, reduces manual operations, improves production efficiency.
The hydraulic control method of the elevating mechanism provided according to the present invention, including any of the above-described described elevating mechanism of application
Hydraulic control system carry out hydraulic control.
In the present embodiment, hydraulic control system is carried out by the hydraulic control system of the application elevating mechanism and realized to rising
The steady synchronous lifting or decline of the hoistable platform of descending mechanism, simple to operate, control is accurate.
Below in conjunction with the accompanying drawings and specific embodiment, more detailed explanation is done to the technical scheme in the present invention.
Shown in Fig. 1 and Fig. 2, it is illustrated with the elevating mechanism comprising two oil cylinders, the system of the present embodiment includes：
Oil warp in fuel tank 11, cleaner 12, hydraulic pump 13, pressure gauge 14, two-position three way magnetic valve 3, overflow valve 2, the fuel tank 11
Cleaner 12 is passed through in hydraulic pump 13 after filtering, the pressure oil output of hydraulic pump 13, and overflow valve 2 adjusts the work pressure of hydraulic oil
Power.Elevating mechanism be in rise working condition when, the first coil 31 of two-position three way magnetic valve is powered, hydraulic oil by pipeline from
First hydraulic fluid port A (as shown in A in Fig. 1) enters the first oil supply loop.When elevating mechanism is in descent mode, two-position three way
Second coil 32 of magnetic valve is powered；Hydraulic oil enters the second oil supply loop by the second hydraulic fluid port B (as shown in B in Fig. 1).
Elevating mechanism in the present embodiment includes：First oil cylinder 61, second oil cylinder 62 in parallel with the first oil cylinder 61, setting
The first hydraulic control one-way valve 41 in the rod chamber oil inlet of the first oil cylinder 61, it is arranged on the rod chamber oil-feed of the second oil cylinder 62
Second hydraulic control one-way valve 42 of mouth.First hydraulic control one-way valve 41 controls the oily rodless cavity for being delivered to the first oil cylinder 61；It is described
Second hydraulic control one-way valve 42 controls oil to be delivered to the rodless cavity of the second oil cylinder 62.The oil inlet and outlet of first oil cylinder 61 further respectively has
First one-way speed-regulating valve 91 and the second one-way speed-regulating valve 92；The oil inlet and outlet of first oil cylinder 62 further respectively has the 3rd unidirectional tune
The fast one-way speed-regulating valve 94 of valve 93 and the 4th.The A mouths (the first hydraulic fluid port A of correspondence) of the two-position three way magnetic valve 3 are connected to the first oil
The rod chamber of 61 and second oil cylinder of cylinder 62；The B mouths (the second hydraulic fluid port B of correspondence) of the two-position three way magnetic valve 3 are connected to the first oil cylinder
61 and the rodless cavity of the second oil cylinder 62.Hydraulic control one-way valve is provided with the rod chamber oil inlet of two oil cylinders 61 and 62, this sets
It is equipped with beneficial to hydraulic oil pressurize in cylinder rod chamber, so as to ensure that elevating mechanism, in normal work, will not cause because of pressure release
Elevating mechanism lands automatically, due to two oil cylinders enter it is fuel-displaced be also respectively provided with one-way speed-regulating valve, pass through that regulation is unidirectional to adjust
The aperture of fast valve, it is ensured that two oil cylinders enter fuel-displaced flow velocity unanimously, while hydraulic control one-way valve delivery outlet can also be controlled
Oil pressure, it is ensured that hydraulic control one-way valve is reversely normally-open, thereby may be ensured that the normal oil return of rodless cavity.
Further, the present embodiment can also include：Shuttle valve 8；A mouths (the oil of correspondence first of the two-position three way magnetic valve 3
Mouthful A) and B mouthfuls (correspondingly the second hydraulic fluid port B) be respectively connecting to the oil inlet of shuttle valve 8；The oil-out of shuttle valve 8 is connected to pressure and opened
Close K3.
Further, the present embodiment can also include：Electric control module；The electric control module includes：Rising is pressed
Button K1, decline button K2 and controller；The rising button K1, decline button K2 and the equal access controllers of pressure switch K3
Input.The first coil 31 of the controller control two-position three way magnetic valve and the second coil 32 of two-position three way magnetic valve are
It is no to be powered, switching signal is gathered by controller, switched over so as to realize between the first hydraulic fluid port A and the second hydraulic fluid port B, meets and rises
Oil pressure cntrol demand of the descending mechanism under different working condition.Without artificial long period of operation handle, inching button is only needed, you can real
The lifting of existing oil cylinder.
To sum up shown, the present invention is simple to operate, easy to use, it is ensured that lifting platform is steadily synchronous, using intelligent control system
System, without artificial long period of operation handle, only needs inching button, you can realize the lifting of oil cylinder.
One skilled in the art will appreciate that except realizing the system that the present invention is provided in pure computer readable program code mode
And its beyond each device, can be caused completely by the way that method and step is carried out into programming in logic the system that provides of the present invention and its
Each device is in the form of gate, switch, application specific integrated circuit, programmable logic controller (PLC) and embedded microcontroller etc.
To realize identical function.So, the system and its every device that the present invention is provided are considered a kind of hardware component, and right
The device for realizing various functions included in it can also be considered as the structure in hardware component；It will can also be used to realize respectively
The device of kind of function, which is considered as, not only can be the software module of implementation method but also can be the structure in hardware component.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make a variety of changes or change within the scope of the claims, this not shadow
Ring the substantive content of the present invention.In the case where not conflicting, feature in embodiments herein and embodiment can any phase
Mutually combination.
Claims (9)
1. a kind of hydraulic control system of elevating mechanism, it is characterised in that including：Fuel tank (11), hydraulic pump (13), switching are opened
Pass, oil supply loop and multiple oil cylinders；Oil in the fuel tank (11) is delivered to oil transportation outlet by hydraulic pump (13), described defeated
Oil export is connected with one end of oil supply loop, and the oil pocket of the other end of the oil supply loop respectively with the multiple oil cylinder is connected；
Wherein：
The oil supply loop includes the first oil supply loop and the second oil supply loop, oil transportation outlet and the first hydraulic fluid port (A) or the
Two hydraulic fluid ports (B) docking is connected, and first hydraulic fluid port (A) is one end of the first oil supply loop, and second hydraulic fluid port (B) is the second confession
One end of oil return line；The other end of first oil supply loop is connected with the rod chamber of each oil cylinder, second oil supply loop
The other end connected with the rodless cavity of each oil cylinder；The switching switch control oil transportation outlet is in the first hydraulic fluid port A and the second hydraulic fluid port B
Between switch over.
2. the hydraulic control system of elevating mechanism according to claim 1, it is characterised in that the fuel tank (11) and hydraulic pressure
Cleaner (12) is additionally provided with pipeline between pump (13), the cleaner (12) is used to carry out the oil that fuel tank (11) is exported
Filtration treatment.
3. the hydraulic control system of elevating mechanism according to claim 1, it is characterised in that the hydraulic pump (13) and institute
State and overflow valve (2) and pressure gauge (14) are additionally provided with the pipeline between oil transportation outlet, the pressure gauge (14) is defeated for monitoring
The oil pressure of oil export, the overflow valve (2) is used for the operating pressure for adjusting oil transportation outlet section hydraulic pressure of pipe line oil.
4. the hydraulic control system of elevating mechanism according to claim 1, it is characterised in that the switching switch includes：
Two-position three way magnetic valve (3), when elevating mechanism, which is in, rises working condition, the first coil (31) of two-position three way magnetic valve is led to
Electricity, the oil transportation outlet is connected with the first hydraulic fluid port (A) docking, and the hydraulic pump (13) is by the oil extracted out in fuel tank (11) with default
Pressure is conveyed to the rod chamber of each oil cylinder；When elevating mechanism is in descent mode, the second of two-position three way magnetic valve
Coil (32) is powered, and the oil transportation outlet is connected with the second hydraulic fluid port (B) docking, and the hydraulic pump (13) will extract out in fuel tank (11)
Oil the rodless cavity of each oil cylinder is conveyed to preset pressure.
5. the hydraulic control system of elevating mechanism according to claim 1, it is characterised in that in first oil supply loop
The first hydraulic fluid port (A) hydraulic control one-way valve and one-way speed-regulating valve, the fluid-control one-way are provided between the oil inlet of each oil cylinder
Valve is used for the conveying direction for limiting oil, and the one-way speed-regulating valve is used for the transporting velocity for adjusting oil.
6. the hydraulic control system of elevating mechanism according to claim 1, it is characterised in that in second oil supply loop
The second hydraulic fluid port (B) be provided with one-way speed-regulating valve between the oil inlet of each oil cylinder, the one-way speed-regulating valve is used to adjust oil
Transporting velocity.
7. the hydraulic control system of the elevating mechanism according to claim any one of 1-6, it is characterised in that also include：Rise
Descending branch road, the lifting branch road includes：Shuttle valve (8), two imports of the shuttle valve (8) respectively with the first oil supply loop
The second hydraulic fluid port (B) connection in one hydraulic fluid port (A), the second oil supply loop, the outlet of the shuttle valve (8) is connected to pressure switch.
8. the hydraulic control system of elevating mechanism according to claim 7, it is characterised in that also include：Electric-controlled molding
Block, the electric control module includes：Rise button, decline button and controller；It is described rising button, decline button and
The input of the equal access controller of pressure switch；The controller is by rising button, the switching signal control of decline button is cut
Switch is changed to switch between the first hydraulic fluid port (A) and the second hydraulic fluid port (B).
9. a kind of hydraulic control method of elevating mechanism, it is characterised in that including being stated using claim 1-8 described in any one
The hydraulic control system of elevating mechanism carries out hydraulic control.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710370037.7A CN107131164A (en) | 2017-05-23 | 2017-05-23 | The hydraulic control system and method for elevating mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710370037.7A CN107131164A (en) | 2017-05-23 | 2017-05-23 | The hydraulic control system and method for elevating mechanism |
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| CN201710370037.7A Pending CN107131164A (en) | 2017-05-23 | 2017-05-23 | The hydraulic control system and method for elevating mechanism |
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| CN107956756A (en) * | 2017-10-27 | 2018-04-24 | 江西省唯欣高科精密五金有限公司 | The lifting of hydraulic saw and decline control system |
| CN108131349A (en) * | 2018-02-07 | 2018-06-08 | 上海中驰自动控制技术有限公司 | The changeable single action circuit synchronous with series connection and its application method |
| CN108167243A (en) * | 2017-12-29 | 2018-06-15 | 四川共享铸造有限公司 | RGV hydraulicefficiency elevation structures synchronous lifting control system and control method |
| CN108394834A (en) * | 2018-03-20 | 2018-08-14 | 浙江工贸职业技术学院 | A kind of self-locking type hydraulic lifting platform |
| CN108928769A (en) * | 2018-08-02 | 2018-12-04 | 上海建工集团股份有限公司 | A kind of hydraulic elevating platform system and its control method |
| CN109899331A (en) * | 2019-03-22 | 2019-06-18 | 宁波中天海德液压有限公司 | Self-balancing hydraulic lifting support device and its application |
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| CN108167243A (en) * | 2017-12-29 | 2018-06-15 | 四川共享铸造有限公司 | RGV hydraulicefficiency elevation structures synchronous lifting control system and control method |
| CN108131349A (en) * | 2018-02-07 | 2018-06-08 | 上海中驰自动控制技术有限公司 | The changeable single action circuit synchronous with series connection and its application method |
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| CN111102258A (en) * | 2020-01-15 | 2020-05-05 | 天津市中重科技工程有限公司 | Tear roller manipulator hydraulic control system open |
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Application publication date: 20170905 |