CN2584955Y - Sealing structure for piston and piston rod of pile and jack - Google Patents
Sealing structure for piston and piston rod of pile and jack Download PDFInfo
- Publication number
- CN2584955Y CN2584955Y CN 02288899 CN02288899U CN2584955Y CN 2584955 Y CN2584955 Y CN 2584955Y CN 02288899 CN02288899 CN 02288899 CN 02288899 U CN02288899 U CN 02288899U CN 2584955 Y CN2584955 Y CN 2584955Y
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- CN
- China
- Prior art keywords
- groove
- ring
- seal
- obturating
- conical surface
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to hermetically sealed construction specialized for hydraulic support frames, upright posts, jacks and pistons. An obturating ring groove is arranged on a piston or a mobile column, and both sides of the piston or the mobile column are provided with supporting and retaining ring grooves; the obturating ring groove is communicated with the supporting and retaining ring grooves by a conical surface groove; a split obturating ring is put into the obturating ring groove, split supporting and retaining rings with conical surfaces are put into the supporting and retaining ring grooves, and the lateral surface of the obturating ring contacts with the big end face of the supporting and retaining rings on the conical surface groove. The hermetically sealed construction for the upright posts, the jacks and piston rods has the structure that the obturating ring groove is arranged on a guide sleeve; one side of the obturating ring groove is provided with a retainer ring groove; the retainer ring groove is communicated with the obturating ring groove by the conical surface groove; the other end of the obturating ring groove is provided with a hollow groove, and an integral type obturating ring is put into the obturating ring groove; a split retainer ring with the conical surface is put into the retainer ring groove, and the big end face of the retainer ring contacts with the lateral surface of the obturating ring. The hermetically sealed construction can reduce sealing gaps, improve sealing reliability, efficiency, and guidance quality, simplified sealing structure, and improve safety, and has the advantages of easy assembly of the obturating ring and convenient replacement of the obturating ring.
Description
Technical field the utility model relates to a kind of sealing configuration, particularly is specifically designed to the sealing configuration of hydraulic support column, jack.
The sealing configuration that background technique is used at present is with working pressure height, industry difference, structure is difference to some extent, the sealing configuration that uses on hydraulic support column, jack can be divided into two classes: the sealing configuration that a class is used as piston, one class is the sealing configuration that piston rod is used, the former adds two L shaped back-up rings or the chevron circle adds baffle ring with the cydariform seal ring, and the latter is that flower bud shape circle adds back-up ring and a guide ring is formed.These three kinds of seal rings are except that structure complexity, manufacture cost height, because the seal ring non-incision causes seal structure complex, and assembling, replacing inconvenience.The sealing configuration that hydraulic support column, jack use all exists complex structure, leakage efficiency lower, the deficiency that reliability is low.
The summary of the invention the purpose of this utility model provides a kind of simple in structure, good seal performance, safe and reliable hydraulic support column, jack novel sealing structure.
The column that the utility model provides, jack piston sealing configuration, comprise oil hydraulic cylinder 1, piston 2, seal ring 3, a baffle ring 4, on piston 2, have seal groove, its both sides have a baffle ring groove, and seal groove is connected by conical surface groove 5 with a baffle ring groove, put into split type seal ring 3 in the seal groove, put into a baffle ring of the split type band conical surface in the baffle ring groove, the seal ring side contacts with the large end face of baffle ring on conical surface groove.The sealing structure is mainly used in column, jack piston sealing configuration.
The column that the utility model provides, jack piston rod sealing configuration, comprise oil hydraulic cylinder 1, guide sleeve 2, seal ring 3, back-up ring 4, piston rod 5, guide ring 6, dust ring 9, have seal groove on its guide sleeve 2, have circlip groove in seal groove one side, circlip groove is connected by a conical surface groove 8 with seal groove, the other end at seal groove has dead slot 7, in seal groove, put into integral seal circle 3, put into the back-up ring of the split type band conical surface in circlip groove, back-up ring conical surface large end face contacts with the seal ring side.The sealing structure is mainly used in column, jack piston rod sealing configuration.
The column that the utility model provides, jack sealing configuration, when seal ring in pressurized process, apply an axial force for a baffle ring or back-up ring, give the radial force of a shelves ring or back-up ring generation by means of the conical surface of conical surface groove, make a baffle ring or back-up ring be affixed to casing wall, reduce seal clearance, prevent that seal ring is extruded, thereby improved the reliability and the leakage efficiency of sealing, improved guiding accuracy simultaneously.External diameter dual face seals circle in this structure recommends to use, on piston, use the split type seal ring, simplified the piston sealing structure of existing column, jack greatly, improved Security, the reliability of sealing, and the seal ring assembling is easy, replacing is convenient, is easy for installation and maintenance.
Below in conjunction with drawings and Examples the utility model is further specified.
Description of drawings Fig. 1 jack piston sealed structural representation
Fig. 2 column piston sealed structural representation
Fig. 3 piston rod sealed structural representation
Embodiment Fig. 1 is the utility model first mode of execution, jack piston with sealing configuration as shown in Figure 1, comprise oil hydraulic cylinder 1, piston 2, seal ring 3, a baffle ring 4, on piston 2, have seal groove, its both sides have a baffle ring groove, and seal groove with prop up a baffle ring groove and be connected by conical surface groove 5, put into split type seal ring 3 in the seal groove, prop up a baffle ring of putting into the split type band conical surface in the baffle ring groove, the seal ring side contacts with the large end face of baffle ring on conical surface groove.The sealing structure is mainly used in column, jack piston sealing configuration.
Fig. 2 is another mode of execution of the utility model, column piston sealing configuration, comprise oil hydraulic cylinder 1, post 2 alive, seal ring 3, a baffle ring 4, on the post 2 of living, have seal groove, its both sides have a baffle ring groove, and seal groove with prop up a baffle ring groove and be connected by conical surface groove 5, put into split type seal ring 3 in the seal groove, prop up a baffle ring of putting into the split type band conical surface in the baffle ring groove, the seal ring side contacts with the large end face of baffle ring on conical surface groove.The sealing structure is mainly used in column, jack piston sealing configuration.This structure and shown in Figure 1 identical just replaces with the piston among Fig. 1 the post alive among Fig. 2.
Figure 3 shows that the piston rod novel sealing structure, the column that the utility model provides, jack piston rod sealing configuration, comprise oil hydraulic cylinder 1, guide sleeve 2, seal ring 3, back-up ring 4, piston rod 5, guide ring 6, dust ring 9, it has seal groove on guide sleeve 2, have circlip groove in seal groove one side, circlip groove is connected by a conical surface groove 8 with seal groove, has dead slot 7 at the other end of seal groove, is easy to put into seal ring.Put into integral seal circle 3 in seal groove, put into the back-up ring of the split type band conical surface in circlip groove, back-up ring conical surface large end face contacts with the seal ring side.Have guiding annular groove and dustproof ring recess at guide sleeve one end, can put into guide ring and dust ring.The sealing structure is mainly used in column, jack piston rod sealing configuration.Structure shown in Figure 3 and structure shown in Figure 1 belong to a total inventive concept.
Claims (2)
1. a column, jack piston sealing configuration, comprise oil hydraulic cylinder (1), piston (2), seal ring (3), a baffle ring (4), it is characterized in that having seal groove on the described piston (2), its both sides have a baffle ring groove, and seal groove is connected by conical surface groove (5) with a baffle ring groove, put into split type seal ring (3) in the seal groove, put into a baffle ring of the split type band conical surface in the baffle ring groove, the seal ring side contacts with the large end face of baffle ring on conical surface groove.
2. column, the jack piston rod sealing configuration, comprise oil hydraulic cylinder (1), guide sleeve (2), seal ring (3), back-up ring (4), piston rod (5), guide ring (6), dust ring (9), it is characterized in that having seal groove on the described guide sleeve (2), have circlip groove in seal groove one side, circlip groove is connected by a conical surface groove (8) with seal groove, the other end at seal groove has dead slot (7), in seal groove, put into integral seal circle (3), put into the back-up ring of the split type band conical surface in circlip groove, back-up ring conical surface large end face contacts with the seal ring side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02288899 CN2584955Y (en) | 2002-11-28 | 2002-11-28 | Sealing structure for piston and piston rod of pile and jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02288899 CN2584955Y (en) | 2002-11-28 | 2002-11-28 | Sealing structure for piston and piston rod of pile and jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2584955Y true CN2584955Y (en) | 2003-11-05 |
Family
ID=33748619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02288899 Expired - Fee Related CN2584955Y (en) | 2002-11-28 | 2002-11-28 | Sealing structure for piston and piston rod of pile and jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2584955Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1773148B (en) * | 2005-08-18 | 2010-05-05 | 王建平 | Fast changeable sealing washer plunger-type cylinder |
| CN102161459A (en) * | 2011-03-02 | 2011-08-24 | 中煤北京煤矿机械有限责任公司 | Jack for fixing piston head by using three-semi-ring structure and hydraulic bracket |
| CN102235339A (en) * | 2010-04-30 | 2011-11-09 | 奔迪士商业运输系统公司 | Piston and cylinder assembly |
| CN102252005A (en) * | 2011-08-01 | 2011-11-23 | 王万法 | Limiting retainer ring device for sleeve of telescopic-sleeve hydraulic cylinder |
| CN101761647B (en) * | 2009-10-14 | 2011-12-28 | 海洋王照明科技股份有限公司 | Lamp sealing structure of special-shaped sealing ring |
| CN102705295A (en) * | 2012-05-30 | 2012-10-03 | 马鞍山市裕华机械制造有限公司 | Guide sleeve of hydraulic oil cylinder |
| CN105114390A (en) * | 2015-08-18 | 2015-12-02 | 安徽贝利机械制造有限公司 | Feeding oil cylinder device for core drill |
| CN106015169A (en) * | 2016-07-15 | 2016-10-12 | 武汉科技大学 | V-shaped fracture sealing assembly used for servo hydraulic cylinder |
-
2002
- 2002-11-28 CN CN 02288899 patent/CN2584955Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1773148B (en) * | 2005-08-18 | 2010-05-05 | 王建平 | Fast changeable sealing washer plunger-type cylinder |
| CN101761647B (en) * | 2009-10-14 | 2011-12-28 | 海洋王照明科技股份有限公司 | Lamp sealing structure of special-shaped sealing ring |
| CN102235339A (en) * | 2010-04-30 | 2011-11-09 | 奔迪士商业运输系统公司 | Piston and cylinder assembly |
| CN102235339B (en) * | 2010-04-30 | 2015-12-16 | 奔迪士商业运输系统公司 | Piston and cylinder component |
| CN102161459A (en) * | 2011-03-02 | 2011-08-24 | 中煤北京煤矿机械有限责任公司 | Jack for fixing piston head by using three-semi-ring structure and hydraulic bracket |
| CN102252005A (en) * | 2011-08-01 | 2011-11-23 | 王万法 | Limiting retainer ring device for sleeve of telescopic-sleeve hydraulic cylinder |
| CN102705295A (en) * | 2012-05-30 | 2012-10-03 | 马鞍山市裕华机械制造有限公司 | Guide sleeve of hydraulic oil cylinder |
| CN105114390A (en) * | 2015-08-18 | 2015-12-02 | 安徽贝利机械制造有限公司 | Feeding oil cylinder device for core drill |
| CN106015169A (en) * | 2016-07-15 | 2016-10-12 | 武汉科技大学 | V-shaped fracture sealing assembly used for servo hydraulic cylinder |
| CN106015169B (en) * | 2016-07-15 | 2017-12-15 | 武汉科技大学 | A kind of V-arrangement fracture seal assembly for servo hydraulic cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |