CN201512397U - Multi-cylinder synchronization lifting platform - Google Patents
Multi-cylinder synchronization lifting platform Download PDFInfo
- Publication number
- CN201512397U CN201512397U CN2009201894379U CN200920189437U CN201512397U CN 201512397 U CN201512397 U CN 201512397U CN 2009201894379 U CN2009201894379 U CN 2009201894379U CN 200920189437 U CN200920189437 U CN 200920189437U CN 201512397 U CN201512397 U CN 201512397U
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- China
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- oil
- cylinder
- stage expansion
- oil cylinder
- multistage telescopic
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Abstract
The utility model discloses a multi-cylinder synchronization lifting platform comprising a base, a plurality of multistage telescopic oil cylinders which synchronously lift, an operation platform, and an electro-hydraulic control mechanism for providing oil for the plurality of multistage telescopic oil cylinders, wherein each multistage telescopic oil cylinder respectively comprises an oil cylinder jacket fixedly arranged on the base, and a plurality of telescopic sleeves which are sheathed stage by stage; a connecting frame is connected among the oil cylinder jackets of all the multistage telescopic oil cylinders; the final-stage telescopic sleeve of the multistage telescopic oil cylinders is fixedly connected with the operation platform; the electro-hydraulic control mechanism comprises a plurality of oil line systems which are mutually independent and balance oil lines for communicating all the multistage telescopic oil cylinders; and one oil line system respectively and independently supplies oil for each multistage telescopic oil cylinder. The multi-cylinder synchronization lifting platform is additionally provided with the balance oil lines, so that oil pressure can be distributed again, and uniform oil pressure of all the multistage telescopic oil cylinders can be further guaranteed, thus guaranteeing the synchronization accuracy of all the multistage telescopic oil cylinders, and further overcoming the phenomenon of deflection.
Description
Technical field
The utility model relates to the synchronously driven lift work platform of a kind of multi-cylinder.
Background technology
When machining large workpiece (as reactor pressure vessel etc.), because workpiece to be machined is bulky, therefore often need to utilize liftable service platform that the operating personnel is risen to higher position, allow the operating personnel carry out construction operation in the outside of pressure container.Existing lift work platform comprises base, a plurality of multi-stage expansion oil cylinder, service platform, the electrohydraulic control mechanism of fluid is provided for a plurality of multi-stage expansion oil cylinders, a plurality of multi-stage expansion oil cylinders are looped around the outside of workpiece, and by electrohydraulic control general mechanism fuel feeding, because the oil pressure of each multi-stage expansion oil cylinder there are differences, therefore each multi-stage expansion oil cylinder hoists asynchronous, because multi-stage expansion oil cylinder synchronization accuracy is not high, behind applied load, crooked phenomenon usually appears in service platform, be difficult to the maintenance level, influence production safety.
Summary of the invention
The purpose of this utility model provides a kind of lifting table of multi-cylinder synchronization lifting.
For achieving the above object, the technical scheme that the utility model adopted is: a kind of multi-cylinder synchronous lifting platform, comprise base, the multi-stage expansion oil cylinder of a plurality of synchronization liftings, service platform, the electrohydraulic control mechanism of fluid is provided for a plurality of described multi-stage expansion oil cylinders, each described multi-stage expansion oil cylinder comprises the oil cylinder overcoat that is fixedly installed on the described base respectively, the telescopic shaft of a plurality of sockets step by step, be connected with link span between the oil cylinder overcoat of each described multi-stage expansion oil cylinder, the last grade telescopic shaft and the described service platform of described multi-stage expansion oil cylinder are fixedly connected, described electrohydraulic control mechanism comprises a plurality of separate oil piping systems and the balance oil circuit that is communicated with each described multi-stage expansion oil cylinder, and each described multi-stage expansion oil cylinder is respectively by a described oil piping system independent oil supply.
The utility model technical scheme further is: each described oil piping system includes two Hydraulic Pumps.
Further, described balance oil circuit comprises a plurality of connection pipes, and a plurality of described connection pipes link to each other a plurality of described multi-stage expansion oil cylinders successively.
Owing to adopted above technical scheme, make and the utlity model has following advantage: a plurality of multi-stage expansion oil cylinders of the present utility model are by independent oil piping system fuel feeding, and each oil piping system provides oil pressure by 2 Hydraulic Pumps respectively, the oil pressure of each oil piping system all equates under the perfect condition, yet can there be some differences between each Hydraulic Pump during real work, therefore the utility model has increased the balance oil circuit again, can make oil pressure carry out sub-distribution again, the oil pressure that further guarantees each multi-stage expansion oil cylinder is unified, thereby guarantee the synchronization accuracy of each multi-stage expansion oil cylinder, and then overcome the beat phenomenon.
Description of drawings
Accompanying drawing 1 is a front view of the present utility model;
Accompanying drawing 2 is a birds-eye view of the present utility model;
Accompanying drawing 3 is the schematic diagram of oil piping system of the present utility model;
Wherein: 1, base; 2, service platform; 3, multi-stage expansion oil cylinder; 4, oil cylinder overcoat; 6, link span; 7, Hydraulic Pump; 8, balance oil circuit; 9, compression indicator; 10, change-over valve; 11, pressure relay; 12, check valve; 14, by pass valve; 15, oil filter; 16, fuel tank; 17, oil inlet.
Specific embodiment
Below in conjunction with accompanying drawing the utility model is elaborated.
As shown in Figure 1, a kind of multi-cylinder synchronous lifting platform comprises the multi-stage expansion oil cylinder 3, service platform 2 of 1,6 synchronization liftings of base, the electrohydraulic control mechanism of fluid is provided for described multi-stage expansion oil cylinder 3.6 multi-stage expansion oil cylinders 3 are evenly distributed on the same circumference, and processed workpiece is positioned at the central authorities of multi-cylinder synchronous lifting platform; Each described multi-stage expansion oil cylinder 3 comprises the oil cylinder overcoat 4 that is fixedly installed on the described base 1, the telescopic shaft that is arranged on a plurality of sockets step by step in the described oil cylinder overcoat 4 respectively, fix by link span 6 between a plurality of described oil cylinder overcoats 4, the last grade telescopic shaft and the described service platform 2 of multi-stage expansion oil cylinder 3 are fixedly connected.In the present embodiment, the counterweight of service platform 2 is 1500kg, and the load of appraising and deciding of multi-cylinder synchronous lifting platform is 2000kg.The inner chamber of the telescopic shaft of each multi-stage expansion oil cylinder 5 all communicates with oil cylinder overcoat 4, and the radius with telescopic shaft reduces, its cross-sectional area also reduces gradually, fluid is through electrohydraulic control mechanism pressurization and when sending into multi-stage expansion oil cylinder 5 like this, according to F=PS, and the cross-sectional area maximum of outermost telescopic shaft, suffered hoisting force maximum, therefore outermost telescopic shaft stretches out earlier, and each telescopic shaft from coarse to fine subsequently stretches out step by step, thereby service platform 2 is risen to predetermined altitude.
For the oil pressure difference that guarantees each multi-stage expansion oil cylinder 3 is unlikely to too big, described electrohydraulic control mechanism comprises 6 separate oil piping systems, and each oil piping system is respectively each multi-stage expansion oil cylinder 5 independent oil supply.
As shown in Figure 3, each oil piping system includes 15,2 Hydraulic Pumps 7 of fuel tank 16, oil filter, by pass valve 14, check valve 12, the change-over valve 10 that is connected with oil inlet 17, the pressure relay 11 of controlling described change-over valve 10, it is identical that yet the output oil pressure of each oil piping system is difficult to guarantee, therefore electrohydraulic control mechanism also comprises the balance oil circuit 8 that is communicated with each described multi-stage expansion oil cylinder 5, as shown in Figure 2, this balance oil circuit 8 comprises a plurality of connection pipes, and a plurality of described connection pipes link to each other a plurality of described multi-stage expansion oil cylinders successively.By this balance oil circuit 8, can make the oil pressure of each multi-stage expansion oil cylinder 5 further obtain balance, improve the synchronization accuracy of multi-cylinder synchronous lifting platform, to overcome the problem of service platform 2 beats.
Claims (3)
1. multi-cylinder synchronous lifting platform, comprise base, the multi-stage expansion oil cylinder of a plurality of synchronization liftings, service platform, the electrohydraulic control mechanism of fluid is provided for a plurality of described multi-stage expansion oil cylinders, each described multi-stage expansion oil cylinder comprises the oil cylinder overcoat that is fixedly installed on the described base respectively, the telescopic shaft of a plurality of sockets step by step, be connected with link span between the oil cylinder overcoat of each described multi-stage expansion oil cylinder, the last grade telescopic shaft and the described service platform of described multi-stage expansion oil cylinder are fixedly connected, it is characterized in that: described electrohydraulic control mechanism comprises a plurality of separate oil piping systems and the balance oil circuit that is communicated with each described multi-stage expansion oil cylinder, and each described multi-stage expansion oil cylinder is respectively by a described oil piping system independent oil supply.
2. a kind of multi-cylinder synchronous lifting platform according to claim 1 is characterized in that: each described oil piping system includes two Hydraulic Pumps.
3. a kind of multi-cylinder synchronous lifting platform according to claim 1 is characterized in that: described balance oil circuit comprises a plurality of connection pipes, and a plurality of described connection pipes link to each other a plurality of described multi-stage expansion oil cylinders successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201894379U CN201512397U (en) | 2009-10-10 | 2009-10-10 | Multi-cylinder synchronization lifting platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201894379U CN201512397U (en) | 2009-10-10 | 2009-10-10 | Multi-cylinder synchronization lifting platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201512397U true CN201512397U (en) | 2010-06-23 |
Family
ID=42483804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201894379U Expired - Lifetime CN201512397U (en) | 2009-10-10 | 2009-10-10 | Multi-cylinder synchronization lifting platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201512397U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105347271A (en) * | 2015-11-09 | 2016-02-24 | 成都金科达铝业有限公司 | Extension type hydraulic movable elevator for aluminum ore |
| CN105347272A (en) * | 2015-11-09 | 2016-02-24 | 成都金科达铝业有限公司 | Extension type hydraulic movable elevator used in aluminum industry plant |
| CN110902617A (en) * | 2019-12-12 | 2020-03-24 | 缙云旅程机械科技有限公司 | Safe ladder of ascending a height convenient to remove |
-
2009
- 2009-10-10 CN CN2009201894379U patent/CN201512397U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105347271A (en) * | 2015-11-09 | 2016-02-24 | 成都金科达铝业有限公司 | Extension type hydraulic movable elevator for aluminum ore |
| CN105347272A (en) * | 2015-11-09 | 2016-02-24 | 成都金科达铝业有限公司 | Extension type hydraulic movable elevator used in aluminum industry plant |
| CN110902617A (en) * | 2019-12-12 | 2020-03-24 | 缙云旅程机械科技有限公司 | Safe ladder of ascending a height convenient to remove |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100623 |
|
| CX01 | Expiry of patent term |