CN103452947A - Split type cylinder core rod of hydraulic oil cylinder - Google Patents
Split type cylinder core rod of hydraulic oil cylinder Download PDFInfo
- Publication number
- CN103452947A CN103452947A CN2013104043232A CN201310404323A CN103452947A CN 103452947 A CN103452947 A CN 103452947A CN 2013104043232 A CN2013104043232 A CN 2013104043232A CN 201310404323 A CN201310404323 A CN 201310404323A CN 103452947 A CN103452947 A CN 103452947A
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- China
- Prior art keywords
- split type
- bar
- core
- screw rod
- hydraulic jack
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Abstract
The invention provides a split type cylinder core rod of a hydraulic oil cylinder. The split type cylinder core rod provided by the invention has the advantages that a detachable screw fixing rod core and a split type sealing body are specifically adopted, so that the separation of a sealing device for continuous use by the split type sealing body is ensured, the continuous use of the whole oil cylinder is enhanced, the maintenance is convenient and the cost is saved.
Description
Technical field
The present invention relates to the split type cylinder core bar of a kind of hydraulic jack, specifically adopt detachable screw rod fixing rod core and split type seal.
Background technique
Former hydraulic jack bar core is overall time, and during work, the pressure rod core stretches out, and when withstanding workpiece, because of being uneven of operative workpiece, workpiece slightly has the movement rod core to be offset thereupon, and workpiece movable causes side pressure and top compressing cylinder core bar the crooked and phenomenon that fractures often to occur.Be offset bar core distortion when larger, cause the oil cylinder leakage of oil, can not re-use whole oil cylinder and scrap, change and get up to need to buy a whole set of oil cylinder.
Summary of the invention
The object of the present invention is to provide the split type cylinder core bar of a kind of hydraulic jack, comprise the bar core, and, with the split type seal of separating step, before its king-rod core,, with pull bar, bar core and split type seal adopt screw rod to fix.
Described screw rod is T-shaped screw rod, and the screw rod bar is being fixed on split type seal bottom, and screw rod bar cone gos deep into bar core 1/2 ~ 3/4 place.
Described separation step arranges 3 grades of close O type seal installation places, and 3 grades of O RunddichtringO installation places width from front to back are respectively 11-13mm, 8-10mm, 11-13mm.
It is 25-28MPa that the split type cylinder core bar of described hydraulic jack can bear pressure, and specification is ￠ 40*150-200mm.
The integrated hydraulic oil cylinder bar core that is had of the present invention changes split type cylinder core bar into, split type seal can be separated seal arrangement to continue to use, and the front end of wearing and tearing or distortion core bar is changed and got final product, and has guaranteed that whole oil cylinder continues to use, convenient for maintaining, saved cost.
The accompanying drawing explanation
Fig. 1 is integrated type oil cylinder core bar, 1. pull bars wherein, and 2. bar core, 3-1,2,3. O type seal installation place, 4. separate step.
Fig. 2 is the split type cylinder core bar of hydraulic jack, 1. pull bars wherein, and 2. bar core, 3-1,2,3. O type seal installation place, 4. separate step, 5. split type seal, 6. screw rod.
Embodiment
embodiment 1
The split type cylinder core bar of a kind of hydraulic jack, comprise bar core 2, and, with the split type seal 5 of separating step 4, before its king-rod core 2, with pull bar 1, bar core 2 adopts screw rod 6 fixing with split type seal 5.Screw rod 6 is T-shaped screw rod, and screw rod 6 bars are being fixed on split type seal 5 bottoms, and screw rod 6 bar cones go deep into bar core 21/2 ~ 3/4 place.Separate step 43 grades of close O type seal installation place 3-1 be set, 2,3,3 grades of O RunddichtringO installation place 3-1,2,3 from front to back width be respectively 11-13mm, 8-10mm, 11-13mm.It is 25-28MPa that the split type cylinder core bar of hydraulic jack can bear pressure, and specification is ￠ 40*150-200mm.
Adopt technological scheme of the present invention, can separate seal arrangement to continue to use, the bar core can change, and only the front end of wearing and tearing or distortion core bar need be changed and is got final product, and has guaranteed that whole oil cylinder continues to use, and convenient for maintaining, saved cost, can be used for large-scale production.
Claims (4)
1. the split type cylinder core bar of hydraulic jack, comprise bar core (2), and with the split type seal (5) of separating step (4), the front pull bar (1) that is provided with of its king-rod core (2), it is characterized in that, bar core (2) adopts screw rod (6) fixing with split type seal (5).
2. the split type cylinder core bar of hydraulic jack according to claim 1, is characterized in that, screw rod (6) is T-shaped screw rod, and screw rod (6) bar is being fixed on split type seal (5) bottom, and screw rod (6) bar cone gos deep into bar core (2) 1/2 ~ 3/4 places.
3. the split type cylinder core bar of hydraulic jack according to claim 1, is characterized in that, separates step (4) 3 grades of close O type seal installation place (3-1 are set, 2,3), 3 grades of O RunddichtringO installation place (3-1,2,3) width is respectively 11-13mm, 8-10mm, 11-13mm from front to back.
4. the split type cylinder core bar of hydraulic jack according to claim 1, is characterized in that, it is 25-28MPa that the split type cylinder core bar of hydraulic jack can bear pressure, and specification is ￠ 40*150-200mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104043232A CN103452947A (en) | 2013-09-09 | 2013-09-09 | Split type cylinder core rod of hydraulic oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104043232A CN103452947A (en) | 2013-09-09 | 2013-09-09 | Split type cylinder core rod of hydraulic oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103452947A true CN103452947A (en) | 2013-12-18 |
Family
ID=49735673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013104043232A Pending CN103452947A (en) | 2013-09-09 | 2013-09-09 | Split type cylinder core rod of hydraulic oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103452947A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519437A (en) * | 2017-09-20 | 2019-03-26 | 上海梅山钢铁股份有限公司 | A kind of small space oil cylinder quick replacement device and replacing options |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3759146A (en) * | 1972-04-07 | 1973-09-18 | Timesavers Inc | Belt tensioner for wide belt sanding machines |
| DE3604610A1 (en) * | 1986-02-14 | 1987-08-20 | Festo Kg | Working-cylinder arrangement |
| CN2674205Y (en) * | 2004-02-09 | 2005-01-26 | 张北海 | Piston rod of hydraulic machine |
| CN200946655Y (en) * | 2006-06-03 | 2007-09-12 | 攀枝花新钢钒股份有限公司 | Hydraulic oil cylinder piston rod |
| CN201568563U (en) * | 2009-12-24 | 2010-09-01 | 天津市新宇彩板有限公司 | Piston rod with replaceable roller bending cylinder |
| CN203430903U (en) * | 2013-09-09 | 2014-02-12 | 宜昌盼盼木制品有限责任公司 | Split cylinder core rod for hydraulic cylinder |
-
2013
- 2013-09-09 CN CN2013104043232A patent/CN103452947A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3759146A (en) * | 1972-04-07 | 1973-09-18 | Timesavers Inc | Belt tensioner for wide belt sanding machines |
| DE3604610A1 (en) * | 1986-02-14 | 1987-08-20 | Festo Kg | Working-cylinder arrangement |
| CN2674205Y (en) * | 2004-02-09 | 2005-01-26 | 张北海 | Piston rod of hydraulic machine |
| CN200946655Y (en) * | 2006-06-03 | 2007-09-12 | 攀枝花新钢钒股份有限公司 | Hydraulic oil cylinder piston rod |
| CN201568563U (en) * | 2009-12-24 | 2010-09-01 | 天津市新宇彩板有限公司 | Piston rod with replaceable roller bending cylinder |
| CN203430903U (en) * | 2013-09-09 | 2014-02-12 | 宜昌盼盼木制品有限责任公司 | Split cylinder core rod for hydraulic cylinder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519437A (en) * | 2017-09-20 | 2019-03-26 | 上海梅山钢铁股份有限公司 | A kind of small space oil cylinder quick replacement device and replacing options |
| CN109519437B (en) * | 2017-09-20 | 2020-10-23 | 上海梅山钢铁股份有限公司 | Device and method for quickly replacing oil cylinder in narrow space |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20131218 |