CN103470764A - Oil cylinder easy for adjusting compression amount of sealing ring - Google Patents
Oil cylinder easy for adjusting compression amount of sealing ring Download PDFInfo
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- CN103470764A CN103470764A CN 201310425525 CN201310425525A CN103470764A CN 103470764 A CN103470764 A CN 103470764A CN 201310425525 CN201310425525 CN 201310425525 CN 201310425525 A CN201310425525 A CN 201310425525A CN 103470764 A CN103470764 A CN 103470764A
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- seal ring
- oil cylinder
- pad
- piston rod
- sealing ring
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Abstract
The invention relates to the technical field of hydraulic cylinders and particularly relates to an oil cylinder capable easy for adjusting compression amount of a sealing ring. The oil cylinder comprises a cylinder body, a front cover, a V-shaped combined sealing ring, adjusting gaskets, a sealing compression cover, screws and a piston rod, wherein the piston rod is mounted in the cylinder body, the front cover is sleeved on the piston rod and is fixedly arranged at the end part of the cylinder body, a sealing ring mounting groove is formed in an inner ring of the end part of the front cover, the V-shaped combined sealing ring is mounted in the sealing ring mounting groove, the sealing compression cover is mounted on the piston rod, is fixedly arranged at the end part of the front cover through the screws and tightly compresses the V-shaped combined sealing ring, and the adjusting gaskets are mounted between the sealing compression cover and the front cover. The oil cylinder has the beneficial effects that the adjusting gaskets are of a split direct-inserting type, and the number of the adjusting gaskets is increased/decreased through only loosening the screws between the sealing compression cover and the front cover without disassembling the oil cylinder, so that the best sealing effect for the sealing ring is achieved through adjusting the compression amount of the V-shaped sealing ring.
Description
Technical field
The present invention relates to technical field of hydraulic oil cylinder, relate in particular to a kind of oil cylinder that is easy to adjust the seal ring decrement.
Background technique
In traditional hydraulic jack, protecgulum is fixedly connected with cylinder body, and sealing gland and protecgulum are fixed by screw, and is directly installed on the sealed groove of protecgulum for the V-type combined seal ring sealed.Traditional cylinder structure design comparison is simple, because the sealed groove size is fixed, after the V-type combined seal ring is used a period of time, the V-shaped seal ring decrement diminishes, and the gap of seal ring in fixing o-ring groove becomes large, thereby have influence on using effect and the working life of seal ring, during in addition for the replacing of V-type combination seal, whole oil cylinder need to be taken apart, then Sealing is taken out, and the Sealing taking-up is also cumbersome, therefore aspect safeguarding, also there is inconvenient problem.
Summary of the invention
The technical problem to be solved in the present invention is: in order to solve in prior art short technical problem in cylinder piston rod V-type combined seal ring working life, the invention provides a kind of oil cylinder that is easy to adjust the seal ring decrement.
The technical solution adopted for the present invention to solve the technical problems is: a kind of oil cylinder that is easy to adjust the seal ring decrement, comprise cylinder body, protecgulum, the V-type combined seal ring, a slice spacer sheet at least, sealing gland, screw and piston rod, described piston rod is arranged in cylinder body, described protecgulum is sleeved on piston rod and is fixed on the end of cylinder body, protecgulum end inner ring offers seal ring groove is installed, described V-type combined seal ring is arranged on seal ring and installs in groove, described sealing gland is arranged on piston rod and is fixed by screws in the protecgulum end, the afterbody of sealing gland is plugged on seal ring and installs in groove and compress the V-type combined seal ring, described adjustment pad is arranged between sealing gland and protecgulum.
For the ease of installing, peg graft, described adjustment pad adopts split direct insertion.
Further, particularly, for the ease of processing, described adjustment pad integral body is circular, and with its arbitrary diameter in two, wherein half is the pad first half in setting, and second half is the pad Lower Half.
For the ease of mounting screw, the inner ring of the described pad first half and pad Lower Half is provided with a plurality of laterally zygomorphic U-groove bevels.
For the ease of screw, snap in, the cell wall of described U-groove bevel to notch slightly expands outwardly gradually.
In order to adapt to the adjustment of V-type combined seal ring decrement, described adjustment pad is 1～6, and every thickness is 0.3mm～1.5mm,
The invention has the beneficial effects as follows, the oil cylinder that is easy to adjust the seal ring decrement of the present invention, adjusting pad adopts split direct insertion, need not dismantle oil cylinder, just by the screw unclamped between sealing gland and protecgulum, increase and decrease the quantity of adjusting pad, thereby the decrement of adjustment V-shaped seal ring reaches the optimal seal effect of seal ring, the working life of having improved greatly V-shaped seal ring, reduce the maintenance cost of oil cylinder, improved the working efficiency of oil cylinder.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation that the present invention is easy to adjust the oil cylinder of seal ring decrement.
Fig. 2 is the structural representation of the adjustment pad of the present invention's oil cylinder of being easy to adjust the seal ring decrement.
In figure: 1, cylinder body, 2, protecgulum, 3, the V-type combined seal ring, 4, sheet adjusts pad, 4-1, the pad first half, 4-2, pad Lower Half, 4-3, U-groove bevel, 5, sealing gland, 6, screw, 7, piston rod.
Embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram 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 embodiment that the present invention is easy to adjust the oil cylinder of seal ring decrement, comprise cylinder body 1, protecgulum 2, V-type combined seal ring 3, the multi-disc sheet is adjusted pad 4, sealing gland 5, screw 6 and piston rod 7, piston rod 7 is arranged in cylinder body 1, protecgulum 2 is sleeved on piston rod 7 and is fixed on the end of cylinder body 1, protecgulum 2 end inner rings offer seal ring groove are installed, V-type combined seal ring 3 is arranged on seal ring and installs in groove, sealing gland 5 is arranged on piston rod 7 and by screw 6 and is fixed on protecgulum 2 ends, the afterbody of sealing gland 5 is plugged on seal ring and installs in groove and compress V-type combined seal ring 3, adjusting pad 4 is arranged between sealing gland 5 and protecgulum 2, adjusting pad 4 adopts split direct insertion.
As shown in Figure 2, adjust pad 4 integral body and be circular, with its arbitrary diameter in two, wherein half is pad first half 4-1 in setting, and second half is pad Lower Half 4-2, and pad first half 4-1 inner ring is provided with 7 U-groove bevel 4-3, pad Lower Half 4-2 inner ring also is provided with 7 U-groove bevel 4-3, and upper and lower U-groove bevel 4-3 is symmetrical, and the cell wall of each U-groove bevel 4-3 to notch slightly expands outwardly gradually, the angle [alpha] of expanding in the present embodiment is 2 °.Adjusting pad 4 is 1～6, and every thickness is 0.3mm～1.5mm, adjusts pad 4 in the present embodiment and forms one group by 4, and wherein two thickness are 1mm, and two thickness are 0.5mm.Adopt symmetrical two halves shape owing to adjusting pad, during installation, only need unclamp screw 6, pad first half 4-1 and pad Lower Half 4-2 can be fastened between sealing gland 5 and protecgulum 2, without sealing gland 5 is unloaded fully.
After V-type combined seal ring 3 is used a period of time, its decrement diminishes, between V-type combined seal ring 3 and sealing gland 5 afterbodys, gap becomes large, can be by unclamping screw 6, reduce the quantity of adjusting pad 4, thereby make sealing gland 5 continue to compress V-type combined seal ring 3, guarantee the oil cylinder normal operation, increase the service life.
The above-mentioned foundation desirable embodiment of the present invention of take is enlightenment, and by above-mentioned description, the relevant staff can, in the scope that does not depart from this invention technological thought, carry out various change and modification fully.The technical scope of this invention is not limited to the content on specification, must determine its technical scope according to the claim scope.
Claims (6)
1. an oil cylinder that is easy to adjust the seal ring decrement, it is characterized in that: comprise cylinder body (1), protecgulum (2), V-type combined seal ring (3), a slice spacer sheet (4) at least, sealing gland (5), screw (6) and piston rod (7), described piston rod (7) is arranged in cylinder body (1), described protecgulum (2) is sleeved on the end that cylinder body (1) was gone up and be fixed on to piston rod (7), protecgulum (2) end inner ring offers seal ring groove is installed, described V-type combined seal ring (3) is arranged on seal ring and installs in groove, described sealing gland (5) is arranged on piston rod (7) and goes up and pass through screw (6) and be fixed on protecgulum (2) end, the afterbody of sealing gland (5) is plugged on seal ring and installs in groove and compress V-type combined seal ring (3), described adjustment pad (4) is arranged between sealing gland (5) and protecgulum (2).
2. the oil cylinder that is easy to adjust the seal ring decrement as claimed in claim 1 is characterized in that: described adjustment pad (4) adopts split direct insertion.
3. the oil cylinder that is easy to adjust the seal ring decrement as claimed in claim 2, it is characterized in that: described adjustment pad (4) integral body is circular, with its arbitrary diameter in two, wherein half is the pad first half (4-1) in setting, and second half is pad Lower Half (4-2).
4. the oil cylinder that is easy to adjust the seal ring decrement as claimed in claim 3, it is characterized in that: the inner ring of the described pad first half (4-1) and pad Lower Half (4-2) is provided with a plurality of laterally zygomorphic U-groove bevels (4-3).
5. the oil cylinder that is easy to adjust the seal ring decrement as claimed in claim 4, it is characterized in that: cell wall to the notch of described U-groove bevel (4-3) slightly expands outwardly gradually.
6. the oil cylinder that is easy to adjust the seal ring decrement as claimed in claim 1, it is characterized in that: described adjustment pad (4) is 1～6, and every thickness is 0.3mm～1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310425525 CN103470764A (en) | 2013-09-17 | 2013-09-17 | Oil cylinder easy for adjusting compression amount of sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310425525 CN103470764A (en) | 2013-09-17 | 2013-09-17 | Oil cylinder easy for adjusting compression amount of sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103470764A true CN103470764A (en) | 2013-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310425525 Pending CN103470764A (en) | 2013-09-17 | 2013-09-17 | Oil cylinder easy for adjusting compression amount of sealing ring |
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| CN (1) | CN103470764A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134956A (en) * | 2015-09-21 | 2015-12-09 | 中国船舶重工集团公司第七〇五研究所 | Axial dynamic seal structure |
| CN105650057A (en) * | 2016-04-01 | 2016-06-08 | 武汉科技大学 | Dustproof device of working roller balance oil cylinder self-defense block |
| CN112894664A (en) * | 2021-02-24 | 2021-06-04 | 清华大学 | Sealing ring clamp |
| CN113686506A (en) * | 2021-08-25 | 2021-11-23 | 广州机械科学研究院有限公司 | Sealing performance detection device of sealing element |
-
2013
- 2013-09-17 CN CN 201310425525 patent/CN103470764A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134956A (en) * | 2015-09-21 | 2015-12-09 | 中国船舶重工集团公司第七〇五研究所 | Axial dynamic seal structure |
| CN105650057A (en) * | 2016-04-01 | 2016-06-08 | 武汉科技大学 | Dustproof device of working roller balance oil cylinder self-defense block |
| CN105650057B (en) * | 2016-04-01 | 2017-05-24 | 武汉科技大学 | Dustproof device of working roller balance oil cylinder self-defense block |
| CN112894664A (en) * | 2021-02-24 | 2021-06-04 | 清华大学 | Sealing ring clamp |
| CN112894664B (en) * | 2021-02-24 | 2021-10-22 | 清华大学 | Sealing ring clamp |
| CN113686506A (en) * | 2021-08-25 | 2021-11-23 | 广州机械科学研究院有限公司 | Sealing performance detection device of sealing element |
| CN113686506B (en) * | 2021-08-25 | 2024-01-16 | 广州机械科学研究院有限公司 | Sealing performance detection device of sealing element |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131225 |
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| WD01 | Invention patent application deemed withdrawn after publication |