CN103032507A - Undercarriage bumper valve packing ring assembly - Google Patents
Undercarriage bumper valve packing ring assembly Download PDFInfo
- Publication number
- CN103032507A CN103032507A CN2012105309116A CN201210530911A CN103032507A CN 103032507 A CN103032507 A CN 103032507A CN 2012105309116 A CN2012105309116 A CN 2012105309116A CN 201210530911 A CN201210530911 A CN 201210530911A CN 103032507 A CN103032507 A CN 103032507A
- Authority
- CN
- China
- Prior art keywords
- valve
- nut
- piston ring
- packing ring
- ring assembly
- 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.)
- Pending
Links
Images
Abstract
The invention belongs to the field of the design of an airplane undercarriage structure, and particularly discloses an undercarriage bumper valve packing ring assembly. The undercarriage bumper valve packing ring assembly comprises a valve and a packing ring, wherein the outside of the valve is integrally in a stepped shaft structure with one large end and one small end, a nut is sleeved outside the small end of the valve, a clamping groove is formed between the large end of the valve and the nut, and the packing ring is sleeved in the clamping groove. The entire structure completely eliminates the deformation and damage of the packing ring in the prior art in the assembling process; and moreover, the assembling process is simple and easy to operate. The valve packing ring assembly is installed on an airplane undercarriage bumper, the installation process is simple, the structure of the bumper is complete in decomposition examination after the duration landing vibration test, thus proving that the undercarriage bumper valve packing ring assembly can meet the design and application requirements.
Description
Technical field
The invention belongs to undercarriage structural design field, specifically, disclose a kind of undercarriage buffer valve piston ring assembly parts.
Background technique
Undercarriage buffer is the important component part of undercarriage, and can buffer work, and directly affects aircraft landing safety.In the buffer, piston ring is a very important structure, generally be positioned at positive stroke valve outer rim draw-in groove, can regulate on the one hand the coaxality of buffer valve and piston rod inwall in compression process, can also stop on the other hand piston rod cavity of resorption hydraulic oil to enter epicoele along the valve outer rim.
The piston ring material is generally selected the higher and wear-resisting materials of hardness such as the pig iron, spring steel, and fragility is larger.Traditional valve and piston ring assembling unit structure are as shown in Figure 1, wherein valve 1 is an overall structure, when assembling, need to increase piston ring 2 swell openings by the special device guiding, cross the valve end, enter the valve draw-in groove, distortion when increase piston ring opening has just increased the piston ring assembling, because the piston ring material fragility is larger, piston ring distortion excessive in assembly process easily causes the piston ring fracture, and scrappage is higher.In addition, the distortion of piston ring may cause to a certain degree damage to piston ring in the assembly process, after the piston ring of band damage enters buffer inside, can't check, in use easily fracture causes the undercarriage shock-absorbing capacity sharply to descend.
Therefore, in structural design, need a kind of novel structure to eliminate the distortion of piston ring in assembly process.
Summary of the invention
The object of the invention is to, overcome the deficiencies in the prior art, adapt to the reality needs, a kind of undercarriage buffer valve piston ring assembly parts is provided.
In order to realize purpose of the present invention, the technical solution used in the present invention is:
A kind of undercarriage buffer valve piston ring assembly parts, comprise valve and piston ring, described valve external overall is the little Step Shaft shape structure of the large end of an end, and described valve small end is set with nut outward, form a draw-in groove between the large end of described valve and the nut, described piston ring is sleeved in the described draw-in groove.
Described nut is one large one small step nut, and the external diameter of the little head end of described nut is less than the large end external diameter of described valve, and the little head end of described nut and the large end of valve fit tightly the formation draw-in groove, and described piston ring is sleeved on described nut microcephaly and holds the outside.
Also be provided be used to the backing-up screw that prevents nut and valve generation relative movement.
Beneficial effect of the present invention is:
Total has been eliminated the deformation and damage that piston ring produces in the prior art fully in assembly process, and assembly process is simple, easy to operate; Use checking through reality, the aircraft undercarriage buffer has been installed this type valve piston ring assembly parts, and installation process is simple, after the durability drop-test finishes buffer is carried out overhaul, find that this structure is intact, illustrate that the present invention can satisfy design and operational requirement.
Description of drawings
Fig. 1 is undercarriage buffer valve piston ring assembling unit structure schematic diagram in the prior art.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the sectional structure schematic diagram of undercarriage buffer valve piston ring assembly parts of the present invention.
Embodiment
The present invention is further described below in conjunction with drawings and Examples:
Embodiment: referring to Fig. 3.
A kind of undercarriage buffer valve piston ring assembly parts, comprise valve 1 and piston ring 2, described valve 1 external overall is the little Step Shaft shape structure of the large end of an end, described valve 1 small end is set with nut 3 outward, form a draw-in groove between described valve 1 large end and the nut 3, described piston ring 2 is sleeved in the described draw-in groove.
Described nut 3 is one large one small step nut, and the external diameter of described nut 3 little head ends is less than described valve 1 large end external diameter, and large 1 end of the little head end of described nut 3 and valve fits tightly the formation draw-in groove, and described piston ring 2 is sleeved on described nut microcephaly and holds the outside.
Also be provided be used to preventing that nut 3 and valve 1 from the backing-up screw 4 of relative movement occuring.During assembling piston ring 2, can first piston ring 2 be put into the draw-in groove of valve 1, then nut 3 is screwed on the valve 1, the internal thread part of screw hole is opened on nut 3 stub end inwalls, another part is opened the small end outer wall at valve 1, nut 3 is twisted good rear screw hole just mate alignment, twist again good backing-up screw 4, can finish assembling.
Total has been eliminated the deformation and damage that piston ring produces fully in assembly process, and assembly process is simple, easy to operate.
The aircraft undercarriage buffer has been installed this type valve piston ring assembly parts, and installation process is simple, after the durability drop-test finishes buffer is carried out overhaul, finds that this structure is intact, illustrates that the present invention can satisfy design and operational requirement.
What embodiments of the invention were announced is preferred embodiment, but is not limited to this, those of ordinary skill in the art; very easily according to above-described embodiment, understand spirit of the present invention, and make different amplifications and variation; but only otherwise break away from spirit of the present invention, all in protection scope of the present invention.
Claims (3)
1. undercarriage buffer valve piston ring assembly parts, comprise valve and piston ring, it is characterized in that: described valve external overall is the little Step Shaft shape structure of the large end of an end, described valve small end is set with nut outward, form a draw-in groove between the large end of described valve and the nut, described piston ring is sleeved in the described draw-in groove.
2. undercarriage buffer valve piston ring assembly parts according to claim 1, it is characterized in that: described nut is one large one small step nut, the external diameter of the little head end of described nut is less than the large end external diameter of described valve, the little head end of described nut and the large end of valve fit tightly the formation draw-in groove, and described piston ring is sleeved on described nut microcephaly and holds the outside.
3. it is characterized in that: also be provided be used to the backing-up screw that prevents nut and valve generation relative movement according to claim 1 or undercarriage buffer valve piston ring assembly parts claimed in claim 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105309116A CN103032507A (en) | 2012-12-11 | 2012-12-11 | Undercarriage bumper valve packing ring assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105309116A CN103032507A (en) | 2012-12-11 | 2012-12-11 | Undercarriage bumper valve packing ring assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103032507A true CN103032507A (en) | 2013-04-10 |
Family
ID=48019743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105309116A Pending CN103032507A (en) | 2012-12-11 | 2012-12-11 | Undercarriage bumper valve packing ring assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103032507A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10013638C1 (en) * | 2000-03-18 | 2001-09-20 | Krupp Bilstein Gmbh | Shock absorber piston, consisting of two piston halves |
| CN1837504A (en) * | 2005-03-25 | 2006-09-27 | 东台市巨威机械厂 | Piston of diesel pile driver |
| CN201314353Y (en) * | 2008-12-11 | 2009-09-23 | 重庆渝安创新科技(集团)有限公司 | Force value regulating rod pressure-proof sealing mechanism of motorcycle shock absorber |
| CN202579792U (en) * | 2012-05-31 | 2012-12-05 | 湖北航天技术研究院特种车辆技术中心 | Damping regulator |
| CN202991995U (en) * | 2012-12-11 | 2013-06-12 | 江西洪都航空工业集团有限责任公司 | Valve and piston ring combined part of landing gear buffer |
-
2012
- 2012-12-11 CN CN2012105309116A patent/CN103032507A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10013638C1 (en) * | 2000-03-18 | 2001-09-20 | Krupp Bilstein Gmbh | Shock absorber piston, consisting of two piston halves |
| CN1837504A (en) * | 2005-03-25 | 2006-09-27 | 东台市巨威机械厂 | Piston of diesel pile driver |
| CN201314353Y (en) * | 2008-12-11 | 2009-09-23 | 重庆渝安创新科技(集团)有限公司 | Force value regulating rod pressure-proof sealing mechanism of motorcycle shock absorber |
| CN202579792U (en) * | 2012-05-31 | 2012-12-05 | 湖北航天技术研究院特种车辆技术中心 | Damping regulator |
| CN202991995U (en) * | 2012-12-11 | 2013-06-12 | 江西洪都航空工业集团有限责任公司 | Valve and piston ring combined part of landing gear buffer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204136914U (en) | Buffer device for collision | |
| CN203463520U (en) | Brake caliper with split-structure caliper body | |
| CN202991995U (en) | Valve and piston ring combined part of landing gear buffer | |
| CN204140618U (en) | A kind of automobile tire chek bolt | |
| CN103032507A (en) | Undercarriage bumper valve packing ring assembly | |
| CN204164186U (en) | A kind of screw rod of chek bolt | |
| CN203488614U (en) | Double-pressing damping spring device | |
| CN105782322A (en) | High-stability piston structure for mechanical equipment damper | |
| CN104806599A (en) | Boosting type mechanical locking type hydraulic cylinder | |
| CN205895846U (en) | Looseness -prevention bolt | |
| CN204433060U (en) | Aircraft load release device | |
| CN208322708U (en) | A kind of Horizontal buffer collision block for roller type mobile work platform | |
| CN203051413U (en) | Sealing bolt | |
| CN203214277U (en) | Piston structure of gas compressor | |
| CN207261644U (en) | A kind of Novel piston pin | |
| CN207795927U (en) | Lifting airscrew brake block abrasion amount measuring device and rotor brake device | |
| CN204591858U (en) | A kind of force booster type mechanical locking hydraulic cylinder | |
| CN205350185U (en) | Mechanical equipment is high stability piston structure for bumper shock absorber | |
| CN104121249A (en) | Novel air cylinder | |
| CN205310728U (en) | Penetrate and glue first board subassembly | |
| CN104373420A (en) | Compensating oil cylinder | |
| CN204003749U (en) | Novel air cylinder | |
| CN104110415B (en) | High pressure corner pushing cylinder | |
| CN204312454U (en) | The fixed anti-loosening device of piston of easy care steel ball easy to process | |
| CN204327640U (en) | A kind of compensating cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130410 |