CN103008965A - Maintenance method for hydraulic jacking oil cylinder of tower crane - Google Patents
Maintenance method for hydraulic jacking oil cylinder of tower crane Download PDFInfo
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- CN103008965A CN103008965A CN2012104940801A CN201210494080A CN103008965A CN 103008965 A CN103008965 A CN 103008965A CN 2012104940801 A CN2012104940801 A CN 2012104940801A CN 201210494080 A CN201210494080 A CN 201210494080A CN 103008965 A CN103008965 A CN 103008965A
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- cylinder
- oil cylinder
- jacking
- tower crane
- cylinder sleeve
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Abstract
The invention discloses a maintenance method for a hydraulic jacking oil cylinder of a tower crane, which comprises the following steps: prospecting the failure condition of a jacking mechanism and determining the failure reason; disassembling the jacking oil cylinder of the tower crane; decomposing and maintaining the jacking oil cylinder; and installing the jacking oil cylinder back in the tower crane. The maintenance method for the hydraulic jacking oil cylinder of the tower crane has the beneficial effects that the site maintenance is realized, the times of maintenance in a factory are reduced, the method is simple, use equipment is less, the maintenance cost is saved, and the equipment use efficiency and the safety performance are improved.
Description
Technical field
The present invention relates to a kind of method for maintaining, particularly a kind of derrick crane hydraulic lifting oil cylinder method for maintaining.
Background technology
To have a lifting highly high because of it for derrick crane, and the characteristics such as work range is large are widely used at construction site.Because the jacking cylinder frequency of utilization is high, so that in-oil cylinder seal very easily weares and teares, and the depot repair cycle is long, efficient is low, cost is high, do not calculate very much, there is defective and not enough and accident that cause happens occasionally in the technique that each construction enterprises uses in ordinary maintenance, maintenance, and brings heavy losses for the country and people's lives and properties.
Summary of the invention
The object of the invention is to overcome the problem that prior art exists, proposed the derrick crane hydraulic lifting oil cylinder method for maintaining of a kind of good manufacturability, dismounting safe ready.
In order to achieve the above object, the technical solution used in the present invention is:
A kind of derrick crane hydraulic lifting oil cylinder method for maintaining may further comprise the steps:
1) reconnoitres the failure condition of lifting body, confirm failure cause;
2) jacking cylinder of dismounting derrick crane;
3) jacking cylinder decomposes maintenance;
1. remove the jacking cylinder jump ring;
2. polish, clear up cylinder sleeve, remove corrosion, paint on the cylinder sleeve;
3. cylinder sleeve is beaten in the ecto-entad rotation, until in the cylinder sleeve setback cylinder barrel;
4. remove the combination wedge reed between cylinder sleeve and the inner wall of cylinder;
5. start oil pump, push rod is ejected cylinder barrel;
6. change cylinder sleeve oil sealing and push rod oil sealing;
7. push rod is advanced cylinder barrel, load onto jump ring;
4) jacking cylinder is reinstalled derrick crane.
Compared with prior art, the invention has the beneficial effects as follows:
This derrick crane hydraulic lifting oil cylinder method for maintaining has been realized field maintenance, has reduced the number of times of depot repair, and its method is simple, and use equipment is few, has saved maintenance cost, has improved service efficiency and the security performance of equipment.
Description of drawings
Fig. 1 is structural representation of the present invention.
Among the figure: jump ring 1, cylinder sleeve 2, combination wedge reed 3, cylinder barrel 4, push rod 5, push rod oil sealing 6, cylinder sleeve oil sealing 7, piston 8.
The specific embodiment
The present invention will be further described below in conjunction with accompanying drawing.
A kind of derrick crane hydraulic lifting oil cylinder method for maintaining may further comprise the steps:
1) reconnoitres the failure condition of lifting body, confirm failure cause;
2) jacking cylinder of dismounting derrick crane;
3) jacking cylinder decomposes maintenance;
1. remove jacking cylinder jump ring 1;
2. polish, clear up cylinder sleeve 2, remove corrosion, paint on the cylinder sleeve;
3. cylinder sleeve 2 is beaten in the ecto-entad rotation, until in the cylinder sleeve setback cylinder barrel 4;
4. remove the combination wedge reed 3 between cylinder sleeve and the inner wall of cylinder;
5. start oil pump, push rod 5 is ejected cylinder barrel 4;
6. change cylinder sleeve oil sealing 7 and push rod 5 upper ejector pin oil sealings 6 on the piston 8;
7. push rod is advanced cylinder barrel, load onto jump ring 1;
4) jacking cylinder is reinstalled on the derrick crane.
Claims (1)
1. derrick crane hydraulic lifting oil cylinder method for maintaining may further comprise the steps:
Reconnoitre the failure condition of lifting body, confirm failure cause;
The jacking cylinder of dismounting derrick crane;
Jacking cylinder decomposes maintenance;
Remove the jump ring of jacking cylinder;
Polishing, cleaning cylinder sleeve are removed corrosion, paint on the cylinder sleeve;
Cylinder sleeve is beaten in the ecto-entad rotation, until in the cylinder sleeve setback cylinder barrel;
Remove the combination wedge reed between cylinder sleeve and the oil cylinder inner wall;
Start oil pump, push rod is ejected cylinder barrel;
Change cylinder sleeve oil sealing and push rod oil sealing;
Push rod is advanced cylinder barrel, load onto jump ring;
Jacking cylinder is reinstalled derrick crane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104940801A CN103008965A (en) | 2012-11-28 | 2012-11-28 | Maintenance method for hydraulic jacking oil cylinder of tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104940801A CN103008965A (en) | 2012-11-28 | 2012-11-28 | Maintenance method for hydraulic jacking oil cylinder of tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103008965A true CN103008965A (en) | 2013-04-03 |
Family
ID=47958369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104940801A Pending CN103008965A (en) | 2012-11-28 | 2012-11-28 | Maintenance method for hydraulic jacking oil cylinder of tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103008965A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105290705A (en) * | 2015-11-30 | 2016-02-03 | 山东东益机械制造有限公司 | Maintenance method for oil lubrication type couplers |
| CN106670794A (en) * | 2016-12-15 | 2017-05-17 | 淮南矿业(集团)有限责任公司 | Hydraulic jack maintaining platform |
| CN109604997A (en) * | 2019-01-25 | 2019-04-12 | 葫芦岛市滨海宇通自动化控制有限公司 | Ship hydraulic jacking apparatus method for maintaining |
| CN109664066A (en) * | 2019-01-29 | 2019-04-23 | 中国建筑第二工程局有限公司 | Repairing method for hydraulic jacking oil cylinder of swing arm tower crane |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020074538A1 (en) * | 2000-12-19 | 2002-06-20 | Xuanzhe Hu | Hydraulic jack and a hydraulic circuit for such a hydraulic jack |
| CN2725600Y (en) * | 2004-09-23 | 2005-09-14 | 贵州枫阳液压有限责任公司 | Jacking oil cylinder |
| US20080000631A1 (en) * | 2006-06-29 | 2008-01-03 | Marion Brecheisen | Dual cylinder lift pump and method of recovering fluids from subsurface formations |
| CN201396334Y (en) * | 2009-04-15 | 2010-02-03 | 湘潭高工科技有限公司 | Jacking hydro cylinder of tower crane |
-
2012
- 2012-11-28 CN CN2012104940801A patent/CN103008965A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020074538A1 (en) * | 2000-12-19 | 2002-06-20 | Xuanzhe Hu | Hydraulic jack and a hydraulic circuit for such a hydraulic jack |
| CN2725600Y (en) * | 2004-09-23 | 2005-09-14 | 贵州枫阳液压有限责任公司 | Jacking oil cylinder |
| US20080000631A1 (en) * | 2006-06-29 | 2008-01-03 | Marion Brecheisen | Dual cylinder lift pump and method of recovering fluids from subsurface formations |
| CN201396334Y (en) * | 2009-04-15 | 2010-02-03 | 湘潭高工科技有限公司 | Jacking hydro cylinder of tower crane |
Non-Patent Citations (2)
| Title |
|---|
| 周传华，王勇，常立群: "3060/3070型联合收割机拨禾轮液压油缸的维修", 《现代化农业》 * |
| 唐先良: "自卸液压油缸总成的维修", 《山东农机化》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105290705A (en) * | 2015-11-30 | 2016-02-03 | 山东东益机械制造有限公司 | Maintenance method for oil lubrication type couplers |
| CN105290705B (en) * | 2015-11-30 | 2017-12-01 | 山东东益机械制造有限公司 | A kind of method for maintaining of oil lubricating type shaft coupling |
| CN106670794A (en) * | 2016-12-15 | 2017-05-17 | 淮南矿业(集团)有限责任公司 | Hydraulic jack maintaining platform |
| CN109604997A (en) * | 2019-01-25 | 2019-04-12 | 葫芦岛市滨海宇通自动化控制有限公司 | Ship hydraulic jacking apparatus method for maintaining |
| CN109664066A (en) * | 2019-01-29 | 2019-04-23 | 中国建筑第二工程局有限公司 | Repairing method for hydraulic jacking oil cylinder of swing arm tower crane |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130403 |