CN204162356U - A kind of hydraulic control lifting system - Google Patents
A kind of hydraulic control lifting system Download PDFInfo
- Publication number
- CN204162356U CN204162356U CN201420586012.2U CN201420586012U CN204162356U CN 204162356 U CN204162356 U CN 204162356U CN 201420586012 U CN201420586012 U CN 201420586012U CN 204162356 U CN204162356 U CN 204162356U
- Authority
- CN
- China
- Prior art keywords
- valve
- input end
- hydraulic
- mouth
- fuel tank
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model relates to a kind of hydraulic control lifting system, comprise fuel tank, Hydraulic Pump and hydraulic control circuit, Hydraulic Pump input end connects fuel tank through pipeline, it is characterized in that, described hydraulic pressure delivery side of pump connects the P mouth of three-position four-way valve, the T mouth of described three-position four-way valve is connected with fuel tank through pipeline, the input end of the A mouth connecting balanced valve of described three-position four-way valve, two mouths of described balance cock connect an input end of a fluid control valve separately, the B mouth of described three-position four-way valve divides another input end of two-way difference connecting fluid pressure control valve, the mouth of described fluid control valve connects the input end of corresponding hydraulic actuating cylinder separately, pipeline between described fluid control valve and hydraulic actuating cylinder input end is provided with electromagnetic valve change-over valve branch road, and the input end of described solenoid directional control valve is connected with hydraulic actuating cylinder input end, and two mouths of solenoid directional control valve are connected with fuel tank through pipeline respectively, described Hydraulic Pump, three-way magnetic valve and solenoid directional control valve are connected with control circuit.
Description
Technical field
The utility model relates to a kind of lifting device, is specifically related to a kind of fluid control of lifting device.
Background technology
Lifting device is generally used for the transport in the vertical direction of weight, transports up and down, the lifting etc. of vehicle hoisting, workplatform between multi-storied garage and basement garage floor height as conveyed goods between building storey height.Usually there is following limitation in traditional lifting device: the limited height 1, lifted, and can not realize the transport of building interlayer; The size of 2, lifting platform is limited, can not lift large-scale object, and the balanced type lifting platform is bad, needs repeatedly to adjust the position of lifting thing before lifting, and prevents from tumbling in the process of lifting; 3, hydraulic power system does not possess anti-fall and overload protection function, easy et out of order.
Summary of the invention
For solving deficiency of the prior art, the purpose of this utility model is to provide one to lift, and stroke is long, holder
Lift a kind of hydraulic control lifting system that load and volume are large, lift and unload steadily, have power-off protection, overload protection.
For reaching above object, the technical scheme that the utility model is taked is:
A kind of hydraulic control lifting system, comprise fuel tank, Hydraulic Pump and hydraulic control circuit, Hydraulic Pump input end connects fuel tank through pipeline, described hydraulic pressure delivery side of pump connects the P mouth of three-position four-way valve, the T mouth of described three-position four-way valve is connected with fuel tank through pipeline, the input end of the A mouth connecting balanced valve of described three-position four-way valve, two mouths of described balance cock connect an input end of a fluid control valve separately, the B mouth of described three-position four-way valve divides another input end of two-way difference connecting fluid pressure control valve, the mouth of described fluid control valve connects the input end of corresponding hydraulic actuating cylinder separately, pipeline between described fluid control valve and hydraulic actuating cylinder input end is provided with electromagnetic valve change-over valve branch road, and the input end of described solenoid directional control valve is connected with hydraulic actuating cylinder input end, and two mouths of electromagnetic valve are connected with fuel tank through pipeline respectively, described Hydraulic Pump, three position four-way electromagnetic valve and solenoid directional control valve are connected with control circuit.
Further, be connected to by pass valve between described Hydraulic Pump mouth and three-position four-way valve, the input end connecting fluid pressure delivery side of pump of described by pass valve, a mouth of by pass valve connects fuel tank, another mouth Bonding pressure table of by pass valve, described by pass valve is the by pass valve of adjustable pressure.
Further, the B mouth place of described three-position four-way valve is provided with flow regulating valve branch road, and described flow regulating valve branch road is connected with fuel tank, and described flow regulating valve is adjustable flow regulating valve.
After taking above technical scheme, the beneficial effects of the utility model are:
1. lifting device comprises Multi-layer supporting device, is articulated and connected between each layer bracing or strutting arrangement, stretching by each layer bracing or strutting arrangement of the flexible drive of hydraulic actuating cylinder, thus realizes the lifting of lifting device, and the stroke of lifting is long, can meet the demand of various operating mode.
2. lifting device is provided with two identical lift unit, and operationally two lift unit are lifted simultaneously, and jacking capacity is stronger, and the lifting of double bracing point is more stable.
3. hydraulic control system balance valve controls the fuel feeding of two groups of hydraulic actuating cylinders, guarantees the synchronous lifting of two lift unit, makes lifting more steady; Hydraulic pressure delivery side of pump is provided with by pass valve branch road, adjustable charge oil pressure, prevents overload; By pilot operated valve device oil circuit control, can closing oil path when power-off, prevent the hydraulic actuating cylinder oil return because power-off causes and cause bench board to decline suddenly; The solenoid directional control valve connecting fuel tank is provided with at the liquid outlet of hydraulic actuating cylinder; at Hydraulic pump fault by controlling solenoid directional control valve directly to tank drainback, solenoid directional control valve is provided with two return openings, a normal oil return of return opening; another return opening manually can carry out balance adjustment, ensures the stability of oil return.
Accompanying drawing explanation
Fig. 1 is the structural representation of lift unit.
Fig. 2 is the schematic diagram of hydraulic control system.
In Fig. 1: the first hold-down arm 1, second hold-down arm the 2, three hold-down arm the 3, four hold-down arm 4, hydraulic pressure
Cylinder 5, lower supporting plate 6, upper lifting platform 7, upper roller 8, bottom roller 8 ', gets on the right track 9, lower railway 9 ',
Position switch 10.
In Fig. 2: fuel tank 11, Hydraulic Pump 12, three-position four-way valve 13, balance cock 14, fluid control valve 15, solenoid directional control valve 16, by pass valve 17, flow regulating valve 18, control circuit 19.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is further described:
As shown in the figure: a kind of lifting device; comprise lifting mechanism and hydraulic control system; described lifting mechanism comprises the lift unit of two groups; described lift unit comprises lower supporting plate 6, upper lifting platform 7 and four hold-down arms; described hold-down arm is made up of two parallel strut bars, and the end of two strut bars and middle part all have cross bar to be fixedly connected with;
The end face of described lower supporting plate 6 is provided with lower railway 9 ', and the bottom surface of upper lifting platform 7 is provided with gets on the right track 9,
Described get on the right track 9 and lower railway 9 ' are provided with position switch 10, and described position switch 10 position is in orbit adjustable; Described first hold-down arm 1 and the second hold-down arm 2 are that X shape is arranged in a crossed manner, the midway location of the first hold-down arm 1 and the second hold-down arm 2 is by hinge, the bottom of the first hold-down arm 1 is articulated with one end of lower supporting plate 6, the bottom of the second hold-down arm 2 is provided with bottom roller 8 ', and described bottom roller 8 ' slides at lower railway 9 '; The bottom of described 3rd hold-down arm 3 is articulated with the top of the second hold-down arm 2, the bottom of the 4th hold-down arm 4 is articulated with the top of the first hold-down arm 1,3rd hold-down arm 3 and the 4th hold-down arm 4 are that X shape is arranged in a crossed manner, the midway location of the 3rd hold-down arm 3 and the 4th hold-down arm 4 is by hinge, the top of described 3rd hold-down arm 3 is provided with upper roller 8, described upper roller 8 is getting on the right track 9 in rolling condition, and the top of described 4th hold-down arm 4 is articulated with the one end bottom lifting platform 7; The hinged hypomere with the second hold-down arm 2 of the fixed end of described hydraulic actuating cylinder 5, the external part of hydraulic actuating cylinder 5 is articulated with the hypomere of the 3rd hold-down arm 3.The hydraulic actuating cylinder 5 of described two lift unit is all connected with hydraulic control system.
Described hydraulic control unit comprises fuel tank 11, Hydraulic Pump 12 and hydraulic control circuit, Hydraulic Pump 12 input end connects fuel tank 11 through pipeline, the mouth of described Hydraulic Pump 12 connects the P mouth of three-position four-way valve 13, the T mouth of described three-position four-way valve 13 is connected with fuel tank 11 through pipeline, the input end of the A mouth connecting balanced valve 14 of described three-position four-way valve 13, two mouths of described balance cock 14 connect an input end of a fluid control valve 15 separately, the B mouth of described three-position four-way valve 13 divides another input end of two-way difference connecting fluid pressure control valve 15, the mouth of described fluid control valve 15 connects the input end of corresponding hydraulic actuating cylinder 5 separately, pipeline between described fluid control valve 15 and hydraulic actuating cylinder 5 input end is provided with electromagnetic valve change-over valve 16 branch road, the input end of described solenoid directional control valve 16 is connected with the input end of hydraulic actuating cylinder 5, and two mouths of electromagnetic valve change-over valve 16 are connected with fuel tank 11 through pipeline respectively, be connected to by pass valve 17, the mouth of the input end connecting fluid press pump 12 of described by pass valve between described Hydraulic Pump 12 mouth and three-position four-way valve 13, a mouth of by pass valve 17 connects fuel tank, another mouth Bonding pressure table of by pass valve 17, the B mouth place of described three-position four-way valve 13 is provided with flow regulating valve 18 branch road, and described flow regulating valve branch road is connected with fuel tank 11, and described flow regulating valve 18 is adjustable flow regulating valve.
Described Hydraulic Pump 12, three-position four-way valve 13, solenoid directional control valve 16 and position switch 10 are connected with control circuit 19.
The control principle of hydraulic control system is: Hydraulic Pump 12 is from fuel tank 11 output hydraulic pressure oil, hydraulic oil enters balance cock 14 through three-position four-way valve 13, fuel feeding is balanced by balance cock 14 points of two-way, hydraulic oil enters the passage backing down fluid control valve 15 in fluid control valve 15, two road binders balances enter into the hydraulic actuating cylinder 5 of two lift unit, and hydraulic actuating cylinder 5 drives lift unit lifting.When lifting overloads, hydraulic pumping oil pressure exceeds the scope that by pass valve 17 is arranged, hydraulic oil from the by pass valve 17 in parallel with Hydraulic Pump 12 mouth to fuel tank 11 oil spilling; When lifting platform needs to decline, oil is sent by Hydraulic Pump 12, another input end that hydraulic oil divides two-way to enter two-way fluid control valve 15 respectively through the B mouth of three-position four-way valve also opens the passage of fluid control valve, the former road of oil return self-hydraulic control cock 15 in hydraulic actuating cylinder 5 returns and enter three-position four-way valve 13 after balance cock 14 balances, and gets back to fuel tank by the T mouth of three-position four-way valve 13; When Hydraulic Pump 12 damages, the oil return in hydraulic actuating cylinder 5 directly to fuel tank 11 oil return from an oil return line of solenoid directional control valve 16, when both sides oil return is unequal, another oil return line of manual regulation solenoid directional control valve 16 can be carried out oil return compensation, ensure balancing oil.
Claims (3)
1. a hydraulic control lifting system, it is characterized in that, comprise fuel tank, Hydraulic Pump and hydraulic control circuit, Hydraulic Pump input end connects fuel tank through pipeline, it is characterized in that, described hydraulic pressure delivery side of pump connects the P mouth of three-position four-way valve, the T mouth of described three-position four-way valve is connected with fuel tank through pipeline, the input end of the A mouth connecting balanced valve of described three-position four-way valve, two mouths of described balance cock connect an input end of a fluid control valve separately, the B mouth of described three-position four-way valve divides another input end of two-way difference connecting fluid pressure control valve, the mouth of described fluid control valve connects the input end of corresponding hydraulic actuating cylinder separately, pipeline between described fluid control valve and hydraulic actuating cylinder input end is provided with electromagnetic valve change-over valve branch road, and the input end of described solenoid directional control valve is connected with hydraulic actuating cylinder input end, and two mouths of solenoid directional control valve are connected with fuel tank through pipeline respectively, described Hydraulic Pump, three-way magnetic valve and solenoid directional control valve are connected with control circuit.
2. a kind of hydraulic control lifting system according to claim 1, it is characterized in that, be connected to by pass valve between described Hydraulic Pump mouth and three-position four-way valve, the input end connecting fluid pressure delivery side of pump of described by pass valve, one mouth of by pass valve connects fuel tank, another mouth Bonding pressure table of by pass valve, described by pass valve is the by pass valve of adjustable pressure.
3. a kind of hydraulic control lifting system according to claim 1, is characterized in that, the B mouth place of described three-position four-way valve is provided with flow regulating valve branch road, and described flow regulating valve branch road is connected with fuel tank, and described flow regulating valve is adjustable flow regulating valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420586012.2U CN204162356U (en) | 2014-10-11 | 2014-10-11 | A kind of hydraulic control lifting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420586012.2U CN204162356U (en) | 2014-10-11 | 2014-10-11 | A kind of hydraulic control lifting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204162356U true CN204162356U (en) | 2015-02-18 |
Family
ID=52536066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420586012.2U Withdrawn - After Issue CN204162356U (en) | 2014-10-11 | 2014-10-11 | A kind of hydraulic control lifting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204162356U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104355266A (en) * | 2014-10-11 | 2015-02-18 | 泰兴市塔力机械制造有限公司 | Lifting hydraulic control system |
| CN106884822A (en) * | 2017-03-17 | 2017-06-23 | 合肥佳航机电设备有限公司 | A kind of shearing type lifting machine platform synchronization double-cylinder hydraulic system |
-
2014
- 2014-10-11 CN CN201420586012.2U patent/CN204162356U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104355266A (en) * | 2014-10-11 | 2015-02-18 | 泰兴市塔力机械制造有限公司 | Lifting hydraulic control system |
| CN104355266B (en) * | 2014-10-11 | 2017-04-26 | 泰兴市塔力机械制造有限公司 | Lifting hydraulic control system |
| CN106884822A (en) * | 2017-03-17 | 2017-06-23 | 合肥佳航机电设备有限公司 | A kind of shearing type lifting machine platform synchronization double-cylinder hydraulic system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104355265A (en) | Lifting device | |
| WO2016054852A1 (en) | Lifting apparatus | |
| CN104310271A (en) | Hydraulic lifting control method | |
| CN202612232U (en) | Hydraulic motor driving device and long spiral drilling machine main winch adopting same | |
| CN106704313B (en) | Rotary drilling rig and mast hydraulic control system and mast raising/decline control method | |
| CN206874583U (en) | A kind of aerial work platform hydraulic energy-saving system | |
| CN106185737B (en) | It is a kind of to adapt to the hydraulic control system of manipulation of getting on or off the bus for high-altitude operation vehicle | |
| CN206872378U (en) | A kind of aerial work platform hydraulic energy-saving system with no-load protection | |
| CN204162356U (en) | A kind of hydraulic control lifting system | |
| CN204162357U (en) | A kind of lifting device | |
| CN111943099A (en) | Energy-saving hydraulic system | |
| CN104355266A (en) | Lifting hydraulic control system | |
| CN111255776B (en) | Hydraulic control system and method for whole steel platform formwork of super high-rise building | |
| CN212868045U (en) | Hydraulic system of aerial work platform | |
| CN206545617U (en) | A kind of pans lowering or hoisting gear | |
| CN102616700B (en) | Oil and air hybrid driven lifting control device | |
| CN110410386A (en) | Three-dimensional public transport garage hydraulic power jacking system | |
| CN212532225U (en) | Energy-saving hydraulic system | |
| CN212537496U (en) | LNG loading and unloading arm drive and dual-purpose hydraulic system that floats | |
| CN113582093A (en) | Luffing and leveling hydraulic control system of cantilever type aerial work platform | |
| CN105275895A (en) | Hydraulic driving system achieving pressure adjustment | |
| CN202296849U (en) | Crane landing leg, landing leg hydraulic system and crane | |
| CN206798693U (en) | A kind of car puller hydraulic balance system | |
| CN203394913U (en) | Lift control hydraulic system of heavy-type platform trolley | |
| CN208456942U (en) | A kind of hydraulic workover unit weight load switching system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150218 Effective date of abandoning: 20170426 |