CN102720726A - Hydraulic cylinder with detachable sealing structure - Google Patents
Hydraulic cylinder with detachable sealing structure Download PDFInfo
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- CN102720726A CN102720726A CN2012101992433A CN201210199243A CN102720726A CN 102720726 A CN102720726 A CN 102720726A CN 2012101992433 A CN2012101992433 A CN 2012101992433A CN 201210199243 A CN201210199243 A CN 201210199243A CN 102720726 A CN102720726 A CN 102720726A
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- piston rod
- bearing
- bearing piston
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Abstract
The invention provides a hydraulic cylinder with a detachable sealing structure. The hydraulic cylinder comprises a piston rod, a bearing piston and a cylinder barrel, wherein the piston rod is arranged in the cylinder barrel; the bearing piston is arranged in a polish rod of the piston rod; the bearing piston is tightly connected with the piston rod; a V-shaped combinational sealing ring is arranged between the bearing piston and the cylinder barrel; one side of the V-shaped combinational sealing ring is provided with a sealing compression ring for fixing the V-shaped combinational sealing ring; and the sealing compression ring and the bearing piston are fixedly connected through bolts and thread holes in the bearing piston. According to the hydraulic cylinder with the detachable sealing structure, the bearing piston and the piston rod are connected tightly and firmly without loosen easily, and the V-shaped combinational sealing ring is fixed by the sealing compression ring, so that the V-shaped combinational sealing ring is simple and convenient to replace during maintenance of the hydraulic cylinder, the labour intensity is low, and the production efficiency is improved as well.
Description
Technical field
The present invention relates to a kind of hydraulic jack of sealing configuration easy to assemble.
Background technique
Existing hydraulic cylinder piston sealing configuration parts with the V-type combined seal ring mainly are the structural types that adopts split, the mounting type of this structure be first be installed in piston on the piston rod after, again with the load-bearing piston through being threaded on the piston rod; V-type combined seal ring with piston will be placed on is therebetween fixed; For preventing to be threaded looseningly between load-bearing piston and the piston rod, with a fastening screw trip bolt it is fixed with piston rod, therefore; When maintenance needs to change the V-type combined seal ring; After must Cock screw being screwed off, again the load-bearing piston is passed through unscrewed from piston rod, because the weight of load-bearing piston is big; The load-bearing piston of especially large-scale or superhuge hydraulic jack; The labor intensity that wants to screw off from piston rod is very big, and therefore working efficiency also has a greatly reduced quality, and prevents very ideal of loosening effect with a fastening screw trip bolt.
Summary of the invention
The technical problem that the present invention will solve is: in order to solve existing hydraulic cylinder piston sealing configuration when maintaining; It is inconvenient to change the V-type combined seal ring; And the fixed effect of load-bearing piston is undesirable; A kind of hydraulic jack of sealing configuration easy to assemble is provided, adopts a kind of new structure, solve the problems referred to above.
The technical solution adopted for the present invention to solve the technical problems is: a kind of hydraulic jack of sealing configuration easy to assemble; Comprise piston rod, load-bearing piston and cylinder barrel; Said piston rod is installed in the cylinder barrel, and said load-bearing piston is installed in the polished rod part of piston rod, and load-bearing piston and piston rod are fastenedly connected; Between said load-bearing piston and the cylinder barrel V-type combined seal ring is installed; Said V-type combined seal ring one side also is equipped with the seal joint that is used for fixing the V-type combined seal ring, and said seal joint and load-bearing piston are fixedly connected an end end face of said load-bearing piston and the end face of piston rod through screw with tapped hole on the load-bearing piston; On said load-bearing piston and the end face that piston rod flushes baffle plate is installed, said baffle plate and piston rod are fixedly connected with tapped hole on the piston rod through screw.
In order to strengthen the sealing between load-bearing piston and the piston rod, between said load-bearing piston and the piston rod O RunddichtringO is installed.
In order to strengthen the sealing between load-bearing piston and the cylinder barrel, between said load-bearing piston and the cylinder barrel combined seal ring is installed.
The invention has the beneficial effects as follows; The hydraulic jack of sealing configuration easy to assemble of the present invention, not only the load-bearing piston is connected fastening firmly with piston rod, is difficult for loosening; And adopt seal joint to fix the V-type combined seal ring; Hydraulic jack is changed the easy and simple to handle of V-type combined seal ring when maintenance, labor intensity is low, has also improved manufacturing efficiency simultaneously.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is the structural representation of the hydraulic jack of the present invention's sealing configuration easy to assemble.
Among the figure: 1, piston rod, 2, the O RunddichtringO, 3, seal joint, 4, the V-type combined seal ring, 5, the load-bearing piston, 6, cylinder barrel, 7, combined seal ring, 8, baffle plate.
Embodiment
Combine accompanying drawing that the present invention is done further detailed explanation now.These accompanying drawings are the schematic representation of simplification, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.
As shown in Figure 1; The invention provides a kind of hydraulic jack of sealing configuration easy to assemble, comprise piston rod 1, load-bearing piston 5 and cylinder barrel 6, it is characterized in that: piston rod 1 is installed in the cylinder barrel 6; Load-bearing piston 5 is installed in the polished rod part of piston rod 1; Load-bearing piston 5 is fastenedly connected with piston rod 1, between load-bearing piston 5 and the cylinder barrel 6 V-type combined seal ring 4 is installed, and V-type combined seal ring 4 one sides also are equipped with the seal joint 3 that is used for fixing V-type combined seal ring 4; Seal joint 3 and load-bearing piston 5 are fixedly connected with tapped hole on the load-bearing piston 5 through screw; On the one end end face of load-bearing piston 5 and the end face of piston rod 1, load-bearing piston 5 and end face that piston rod 1 flushes baffle plate 8 is installed, baffle plate 8 and piston rod 1 are fixedly connected with tapped hole on the piston rod 1 through screw; Between load-bearing piston 5 and the piston rod 1 O RunddichtringO 2 is installed, between load-bearing piston 5 and the cylinder barrel 6 combined seal ring 7 is installed.
The baffle plate 8 that utilization is fixed on piston rod 1 end face blocks load-bearing piston 5; Can prevent effectively that it is loosening; Use dismountable seal joint 3 that V-type combined seal ring 4 is fixing with it; When maintenance needed to change V-type combined seal ring 4, the seal joint 3 with baffle ring and load-bearing piston 5 two ends unloaded like a cork, again V-type combined seal ring 4 was changed.After taking this design; Obtain the improvement of two aspects: on the one hand; Hydraulic jack need be changed the easy and simple to handle of V-type combined seal ring 4 when maintenance, labor intensity is low, has also improved manufacturing efficiency simultaneously; On the other hand, the hydraulic jack of this structural type prevent between load-bearing piston 5 and the piston rod 1 be threaded loosening just more safe and reliable.
With above-mentioned foundation desirable embodiment of the present invention is enlightenment, and through above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.The technical scope of this invention is not limited to the content on the specification, must confirm its technical scope according to the claim scope.
Claims (3)
1. the hydraulic jack of a sealing configuration easy to assemble; Comprise piston rod (1), load-bearing piston (5) and cylinder barrel (6); It is characterized in that: said piston rod (1) is installed in the cylinder barrel (6); Said load-bearing piston (5) is installed in the polished rod part of piston rod (1); Load-bearing piston (5) is fastenedly connected with piston rod (1), between said load-bearing piston (5) and the cylinder barrel (6) V-type combined seal ring (4) is installed, and said V-type combined seal ring (4) one sides also are equipped with the seal joint (3) that is used for fixing V-type combined seal ring (4); Said seal joint (3) and load-bearing piston (5) are fixedly connected with tapped hole on the load-bearing piston (5) through screw; On the one end end face of said load-bearing piston (5) and the end face of piston rod (1), said load-bearing piston and end face that piston rod flushes baffle plate (8) is installed, said baffle plate (8) and piston rod (1) are fixedly connected with tapped hole on the piston rod through screw.
2. the hydraulic jack of sealing configuration easy to assemble as claimed in claim 1 is equipped with O RunddichtringO (2) between said load-bearing piston (5) and the piston rod (1).
3. the hydraulic jack of sealing configuration easy to assemble as claimed in claim 1 is equipped with combined seal ring (7) between said load-bearing piston (5) and the cylinder barrel (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101992433A CN102720726A (en) | 2012-06-15 | 2012-06-15 | Hydraulic cylinder with detachable sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101992433A CN102720726A (en) | 2012-06-15 | 2012-06-15 | Hydraulic cylinder with detachable sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102720726A true CN102720726A (en) | 2012-10-10 |
Family
ID=46946564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101992433A Pending CN102720726A (en) | 2012-06-15 | 2012-06-15 | Hydraulic cylinder with detachable sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102720726A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506269A (en) * | 2018-03-07 | 2018-09-07 | 广东精铟海洋工程创新研究有限公司 | A kind of hydraulic cylinder piston design of anti-cylinder barrel damage |
| CN110185675A (en) * | 2019-06-24 | 2019-08-30 | 新余钢铁股份有限公司 | A kind of hydraulic cylinder piston drive end bearing bracket sealing structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2072614U (en) * | 1990-07-07 | 1991-03-06 | 丛学沂 | Hydraulic sealing oil cylinder |
| CN2182898Y (en) * | 1993-05-19 | 1994-11-16 | 高光中 | Inner pressure type combined and sealed hydraulic cylinder |
| US6523452B2 (en) * | 2000-07-14 | 2003-02-25 | Kayaba Industry Co., Ltd. | Hydraulic cylinder cushion device |
| CN201092988Y (en) * | 2007-09-10 | 2008-07-30 | 夏善海 | Hydraulic oil cylinder |
| CN102221028A (en) * | 2011-07-12 | 2011-10-19 | 扬州斯普森机械制造有限公司 | Hydraulic cylinder |
| CN202732532U (en) * | 2012-06-15 | 2013-02-13 | 常州液压成套设备厂有限公司 | Hydraulic oil cylinder of sealing structure capable of conveniently disassembled and assembled |
-
2012
- 2012-06-15 CN CN2012101992433A patent/CN102720726A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2072614U (en) * | 1990-07-07 | 1991-03-06 | 丛学沂 | Hydraulic sealing oil cylinder |
| CN2182898Y (en) * | 1993-05-19 | 1994-11-16 | 高光中 | Inner pressure type combined and sealed hydraulic cylinder |
| US6523452B2 (en) * | 2000-07-14 | 2003-02-25 | Kayaba Industry Co., Ltd. | Hydraulic cylinder cushion device |
| CN201092988Y (en) * | 2007-09-10 | 2008-07-30 | 夏善海 | Hydraulic oil cylinder |
| CN102221028A (en) * | 2011-07-12 | 2011-10-19 | 扬州斯普森机械制造有限公司 | Hydraulic cylinder |
| CN202732532U (en) * | 2012-06-15 | 2013-02-13 | 常州液压成套设备厂有限公司 | Hydraulic oil cylinder of sealing structure capable of conveniently disassembled and assembled |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506269A (en) * | 2018-03-07 | 2018-09-07 | 广东精铟海洋工程创新研究有限公司 | A kind of hydraulic cylinder piston design of anti-cylinder barrel damage |
| CN110185675A (en) * | 2019-06-24 | 2019-08-30 | 新余钢铁股份有限公司 | A kind of hydraulic cylinder piston drive end bearing bracket sealing structure |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121010 |