CN205953426U - A speed control system for hydraulic elevating platform - Google Patents
A speed control system for hydraulic elevating platform Download PDFInfo
- Publication number
- CN205953426U CN205953426U CN201620917732.1U CN201620917732U CN205953426U CN 205953426 U CN205953426 U CN 205953426U CN 201620917732 U CN201620917732 U CN 201620917732U CN 205953426 U CN205953426 U CN 205953426U
- Authority
- CN
- China
- Prior art keywords
- hydraulic
- speed
- direct current
- valve
- hydraulic oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Fluid-Pressure Circuits (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
The utility model discloses a speed control system for hydraulic elevating platform, speed control system includes: hydraulic tank for storage hydraulic oil, direct current motor speed governing unit, including direct current motor and the control unit, the control unit can require the adjustment according to the operating mode of difference direct current motor's rotational speed, the pumping system, its by direct current motor drives rotatoryly, and follows hydraulic pressure oil sucks among the hydraulic tank, through the internal volume of pumping system changes output the high pressrue hydraulic oil, and valve unit, it will the adjustment of high pressure hydraulic oil travel direction, pressure and the flow of pumping system output, adjusted high pressure hydraulic oil transmits to through external pipeline in hydraulic elevating platform's the hydro -cylinder to realize hydraulic elevating platform's the lift action and the adjustment of multi -gear speed. The beneficial effects of the utility model are that, this speed control system makes that hydraulic elevating platform's lift action is steady, speed is adjustable, effective lowering system temperature rise and throttling loss, safe and reliable and low cost.
Description
Technical field
This utility model is related to a kind of governing system for hydraulic elevator platform, belongs to intelligent production line technology field.
Background technology
Hydraulic elevator platform drives one-level scissor-type lifting mechanism to realize lifting and bearing function by hydraulic system, mainly
Complete the accurate assembly operation of apparatus for production line for auxiliary, therefore it is required that hydraulic elevator platform fine motion distance when crawl operates
Little, speed multi-gear adjustable.
For rate requests more than three gears, the general employing of traditional hydraulic elevator platform determines rotating speed motor and gear pump system
System composition governing system, system fuel delivery is constant, but because oil cylinder rodless cavity and rod chamber have area ratio, rises, declines
When required flow different, decrease speed therefore can be caused fast, if plus choke valve limit decrease speed, can cause to press
Power is lost, thus system pressure raises, oil temperature temperature rise is fast；If adoption rate valve controls the flow needed for rise and fall respectively
Realize multi gear speed adjustable, in order to reduce system pressure loss, hydraulic circuit must add three-way flowrate compensator, hydraulic circuit phase
To complexity, hidden failure point increases.If governing system, cost are formed with variable pump governing system using the motor determining rotating speed
Of a relatively high.
Utility model content
In view of drawbacks described above present in prior art or deficiency, this utility model provides and a kind of is used for hydraulic elevator platform
Governing system, it can make the lifting action of hydraulic elevator platform steadily, and many gears speed is adjustable.
According to one side of the present utility model, there is provided a kind of governing system for hydraulic elevator platform, described speed governing system
System includes：Hydraulic oil container, for storing hydraulic oil；DC motor speed-regulating unit, including direct current generator and control unit, described control
Unit processed can adjust the rotating speed of described direct current generator according to different working condition requirements；Pumping system, it is by described direct current generator band
Dynamic rotation, and suck hydraulic oil from described hydraulic oil container, by the internal capacity change output high-pressure and hydraulic of described pumping system
Oil；And control valve group, the high pressure liquid that described pumping system exports is pressed oil the adjustment of travel direction, pressure and flow by it, described
High pressure liquid force feed after adjustment is transferred in the oil cylinder of described hydraulic elevator platform through external pipeline, to realize the liter of hydraulic elevator platform
Fall action and the adjustment of many gears speed.
Preferably, described pumping system is gear pump.
Alternatively, described control valve group includes check valve, overflow valve, solenoid directional control valve, one-way throttle valve, rapid switching valve
And balanced valve.
The beneficial effects of the utility model are that the described governing system for hydraulic elevator platform can be according to different operating modes
Rate request provides system fuel supply flow rate on demand, so that the lifting action of hydraulic elevator platform is steadily, speed is adjustable, especially slowly
When fast, can effectively reduce system temperature rise and restriction loss, safety by adjusting DC motor speed minimizing system fuel supply flow rate
Reliable and with low cost.
It is described above mentioning in the feature mentioned and combinations of features and the description of accompanying drawing below and/or individually show
Show that feature in the accompanying drawings and combinations of features are available, can be used not only in the combination each specified, and can be also used in it
In his combination or single feature, without deviating from scope of the present utility model.
Brief description
The detailed description to non-limiting example made by referring to the following drawings, of the present utility model other special
Levy, objects and advantages will become more apparent upon.Wherein：
Fig. 1 is the organigram of the hydraulic elevator platform according to embodiment of the present utility model；
Fig. 2 is the organigram according to embodiment of the present utility model for the governing system of hydraulic elevator platform；
Fig. 3 is the Hydraulic System Principle according to embodiment of the present utility model for the governing system of hydraulic elevator platform
Figure.
It should be appreciated that in following accompanying drawings, identical reference represents identical or corresponding part and feature.Each in accompanying drawing
Being simply described as follows of reference：
1 hydraulic elevator platform
2 car body modules
3 control modules
100 governing systems
10 hydraulic oil containers
20 DC motor speed-regulating units
21 direct current generators
22 control units
30 pumping systems
40 control valve groups
41 check valves
42 overflow valves
43 solenoid directional control valves
44 one-way throttle valves
45 rapid switching valves
46 balanced valves
Specific embodiment
With reference to the accompanying drawings and examples the application is described in further detail.It is understood that this place is retouched
The specific embodiment stated is used only for explaining relevant utility model, rather than the restriction to this utility model.Further need exist for explanation
, for the ease of description, in accompanying drawing, illustrate only the part related to utility model.
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can phases
Mutually combine.To describe the application below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Fig. 1 is the organigram of the hydraulic elevator platform according to embodiment of the present utility model.As shown in figure 1, hydraulic pressure liter
Fall platform 1 and car body module 2 and control module 3 use cooperatively to assist the accurate assembly operation completing apparatus for production line.Hydraulic pressure liter
Fall platform 1 drives one-level scissor-type lifting mechanism to realize elevating function and bearing function by hydraulic system.
Fig. 2 is the organigram according to embodiment of the present utility model for the governing system of hydraulic elevator platform.Fig. 3
It is the hydraulic system principle figure according to embodiment of the present utility model for the governing system of hydraulic elevator platform.In conjunction with Fig. 2, figure
3, the governing system 100 of hydraulic elevator platform 1 includes：Hydraulic oil container 10, for storing hydraulic oil；DC motor speed-regulating unit 20,
Including direct current generator 21 and control unit 22, control unit 22 can adjust turning of direct current generator 21 according to different working condition requirements
Speed；Pumping system 30, it is rotated by direct current generator 20, and sucks hydraulic oil from hydraulic oil container 10, relies on its internal work
The change output high pressure liquid force feed of volume；Control valve group 40, the high pressure liquid for exporting pumping system 30 presses oil travel direction, pressure
Power and the adjustment of flow.High pressure liquid force feed after adjustment is transferred in the oil cylinder of hydraulic elevator platform through external pipeline, to realize liquid
The pressure lifting action of lifting platform and the adjustment of many gears speed.
Preferably, pumping system 30 can be gear pump.DC motor speed-regulating unit 20 gear pump constant with fuel delivery
It is applied in combination and can effectively reduce system temperature rise and restriction loss, and with low cost.Pumping system 30 can also be variable pump, but becomes
This is higher.
Control valve group 40 can be check valve 41, overflow valve 42, solenoid directional control valve 43, one-way throttle valve 44, be switched fast
Valve 45 and the combination of balanced valve 46.
Balanced valve 46 has the effect of speed limiting lock, and it can determine the big of balanced valve 46 opening according to the size of load
Little, thus ensureing the decrease speed of scissor-type lifting mechanism steadily, when scissor-type lifting mechanism quits work, balanced valve 46 can
To lock hydraulic circuit, prevent scissor-type lifting mechanism from sinking.Compare more conventional hydraulic lock and decline plus counterbalance valve loop is come
Say, structure is simple, safe and reliable, the use requirement under heavy duty operating mode different with underloading can be met.
During speed governing, need to arrange the rotating speed of direct current generator 20, when this rotating speed is in minimum speed, need to set hydraulic pressure system
The minimal openings amount of the one-way throttle valve 44 of system.Direct current is described below taking the direct current generator as 2200r/min for the maximum (top) speed as a example
The speed regulation process of motor, thus realize speed adjustment between three gears for the hydraulic elevator platform.In conjunction with Fig. 3, specific speed governing
Journey is as follows：
(1) rotating speed of direct current generator 20 is transferred to 1000r/min, after electric magnet plug Y1 energising, high pressure liquid force feed is passed through
Oil cylinder is entered, hydraulic elevator platform 1 is risen with the speed of the first gear after solenoid directional control valve 43, one-way throttle valve 44, balanced valve 46；
(2) rotating speed of direct current generator 20 is transferred to 700r/min, after electric magnet plug Y2 energising, hydraulic oil changes through electromagnetism
Enter oil cylinder to valve 43, one-way throttle valve 44, hydraulic elevator platform 1 is declined with the speed of the first gear；
(3) motor speed of direct current generator 20 is transferred to 1200r/min, after electric magnet plug Y1, Y3 energising, high-pressure and hydraulic
Oil enters oil cylinder after solenoid directional control valve 43, rapid switching valve 45, balanced valve 46, and hydraulic elevator platform 1 is with the speed of the second gear
Degree rises；
(4) motor speed of direct current generator 20 is transferred to 1000r/min, after electric magnet plug Y2, Y4 energising, high-pressure and hydraulic
Oil enters oil cylinder after solenoid directional control valve 43, rapid switching valve 45, and hydraulic elevator platform 1 is declined with the speed of the second gear.
(5) motor speed of direct current generator 20 is transferred to 1500r/min, after electric magnet plug Y1, Y3 energising, high-pressure and hydraulic
Oil enters oil cylinder after solenoid directional control valve 43, rapid switching valve 45, balanced valve 46, and hydraulic elevator platform 1 is with the speed of third gear position
Degree rises；
(6) motor speed of direct current generator 20 is transferred to 1200r/min, after electric magnet plug Y2, Y4 energising, high-pressure and hydraulic
Oil enters oil cylinder after solenoid directional control valve 43, rapid switching valve 45, and hydraulic elevator platform 1 is declined with the speed of third gear position.
It should be appreciated that the concrete tachometer value during above-mentioned DC motor speed-regulating is not limited to the present embodiment, rotating speed
Value is relevant with the rotating speed torque curve of direct current generator, depending on actually used operating mode.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.People in the art
Member is it should be appreciated that involved utility model scope is however it is not limited to the particular combination of above-mentioned technical characteristic in the application
Technical scheme, also should cover simultaneously without departing from described utility model design in the case of, by above-mentioned technical characteristic or its be equal to
Other technical schemes that feature carries out combination in any and formed.Such as features described above is had with (but not limited to) disclosed herein
The technical scheme that the technical characteristic having similar functions is replaced mutually and formed.
Claims (3)
1. a kind of governing system for hydraulic elevator platform is it is characterised in that described governing system includes：
Hydraulic oil container, for storing hydraulic oil；
DC motor speed-regulating unit, including direct current generator and control unit, described control unit can be wanted according to different operating modes
Seek the rotating speed adjusting described direct current generator；
Pumping system, it is rotated by described direct current generator, and sucks hydraulic oil from described hydraulic oil container, by described pump system
The internal capacity change output high pressure liquid force feed of system；And
Control valve group, the high pressure liquid that described pumping system exports is pressed oil the adjustment of travel direction, pressure and flow by it,
High pressure liquid force feed after described adjustment is transferred in the oil cylinder of described hydraulic elevator platform through external pipeline, to realize hydraulic pressure liter
The fall lifting action of platform and the adjustment of many gears speed.
2. governing system according to claim 1 is it is characterised in that described pumping system is gear pump.
3. governing system according to claim 1 is it is characterised in that described control valve group includes check valve, overflow valve, electricity
Magnetic reversal valve, one-way throttle valve, rapid switching valve and balanced valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620917732.1U CN205953426U (en) | 2016-08-22 | 2016-08-22 | A speed control system for hydraulic elevating platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620917732.1U CN205953426U (en) | 2016-08-22 | 2016-08-22 | A speed control system for hydraulic elevating platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205953426U true CN205953426U (en) | 2017-02-15 |
Family
ID=57977763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620917732.1U Expired - Fee Related CN205953426U (en) | 2016-08-22 | 2016-08-22 | A speed control system for hydraulic elevating platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205953426U (en) |
-
2016
- 2016-08-22 CN CN201620917732.1U patent/CN205953426U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102887435B (en) | Hydraulic system for controlling amplitude variation of crane boom, control method and crane | |
| CN103727082B (en) | Hydraulic system and engineering machinery | |
| CN203868275U (en) | Hydraulic stepless speed change transmission mechanism | |
| CN103671335A (en) | Load-sensitive electric proportional multi-loop valve | |
| CN107143540B (en) | Digital load sensing hydraulic control system and method | |
| CN104627910B (en) | Intelligent load sensing hydraulic system of electric forklift | |
| CN103016466B (en) | Hydraulic oil supply unit, hydraulic power unit and oil supply control method of hydraulic oil supply unit | |
| CN108071620A (en) | Electrically-controlled valve, hydraulic pump and the hydraulic pump system for possessing changeable control function | |
| CN108383039A (en) | A kind of energy-saving stepping type lifter structure hydraulic control system | |
| CN205953426U (en) | A speed control system for hydraulic elevating platform | |
| US9222486B2 (en) | Engine augmentation of hydraulic control system | |
| CN106438584B (en) | A kind of variable pressure and flow type hydraulic servomechanism and method of work based on electric machine speed regulation | |
| CN102494128A (en) | Pump-controlled CVT (continuously variable transmission) electric hydraulic control system | |
| CN110425276B (en) | High-speed switch valve pilot control's buncher electricity liquid control system | |
| CN208634147U (en) | A kind of driving motor directly drives the hydraulic energy-saving system of pump control cylinder with differential effect | |
| CN101337650B (en) | Energy control valve of hydraulic electric lift truck | |
| KR910004035B1 (en) | Control apparatus of hydraulic winch | |
| CN201729582U (en) | Closed hydraulic oil way of hoister | |
| CN107725504B (en) | Hydraulic system capable of providing proper performance for load and hydraulic control method | |
| CN203670337U (en) | Load-sensitive electric proportional multi-way valve | |
| CN110203845A (en) | A kind of hydraulic control system for four column lifting mechanisms | |
| CN1147421C (en) | Novel forklift-walking speed-regulating device | |
| CN112938720A (en) | Self-adaptive speed-regulating dual-function hydraulic system for closed-loop adjustment of driving force and braking force | |
| CN108679018B (en) | Rotary electrohydraulic driver and control method | |
| CN202338633U (en) | Pump control hydraulic system of metal belt type continuously variable transmission |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170215 Termination date: 20180822 |