CN202867397U - Piston component of nitrogen balancing oil cylinder - Google Patents
Piston component of nitrogen balancing oil cylinder Download PDFInfo
- Publication number
- CN202867397U CN202867397U CN 201220524475 CN201220524475U CN202867397U CN 202867397 U CN202867397 U CN 202867397U CN 201220524475 CN201220524475 CN 201220524475 CN 201220524475 U CN201220524475 U CN 201220524475U CN 202867397 U CN202867397 U CN 202867397U
- Authority
- CN
- China
- Prior art keywords
- piston
- oil cylinder
- support belt
- wall
- supporting band
- 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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- Pistons, Piston Rings, And Cylinders (AREA)
- Fluid-Damping Devices (AREA)
- Compressor (AREA)
Abstract
The utility model relates to a piston component of a nitrogen balancing oil cylinder. The piston component of the nitrogen balancing oil cylinder comprises a cylinder barrel, a piston rod and a piston. The piston is fixed on the piston rod and is arranged in the cylinder barrel in a sliding fit mode. At least one circle groove is formed in the outer wall of the piston. A support belt is embedded in the circle groove. The outer surface of the support belt is higher than the outer wall of the piston. A gap is arranged between two ends of the support belt. The support belt is made of polytetrafluoroethylene materials. According to the piston component of the nitrogen balancing oil cylinder, the support belt used for supporting and guiding is arranged on the outer wall of the piston, the gap is arranged on the support belt, the gap is of an open ring structure and is capable of communicating the two ends of the support belt, pressures at the two ends of the support belt are enabled to be balanced, strange noises are avoided when the piston moves, and quality of the oil cylinder is improved. Due to the fact that the support belt is made of polytetrafluoroethylene materials, the support belt is soft, wear-resistant, and long in service life.
Description
Technical field
The utility model relates to the main shaft counterweight nitrogen balance system of lathe class machining center, specifically a kind of nitrogen balance oil cylinder piston assembly parts.
Background technique
The nitrogen balance system of lathe class machining center has substituted traditional main shaft balancing weight counterweight, has both reduced raw-material resource loss, has reduced the gross weight of lathe, has also reduced the microseismic activity that motion of main shaft produces simultaneously, has improved Product Precision.
Oil cylinder in the nitrogen balance system, piston are slidingly fitted in the cylinder barrel, are fixed with twice O shape rubber seal at the outer wall of piston, play supporting piston and leading role.This guide structure can be closed with air between the two seals circle, can produce the abnormal sound noise during piston movement, affects the use of oil cylinder; In addition, seal ring is made by rubber, and working life is short.
Summary of the invention
The utility model provides a kind of nitrogen balance oil cylinder piston assembly parts for the problems referred to above, the abnormal sound noise when this guide structure can reduce the oil cylinder use.
According to the technical solution of the utility model: a kind of nitrogen balance oil cylinder piston assembly parts, comprise cylinder barrel, piston rod and piston, described piston is fixed on the described piston rod and is slidingly fitted in the described cylinder barrel, have at least one annular groove on the outer wall of described piston, be embedded with supporting band in the described annular groove, the outer surface of described supporting band exceeds the outer wall of described piston, is provided with the gap between the two ends of described supporting band.
The two ends of described supporting band are corresponding oblique angle.
The material of described supporting band is teflon.
Have the described annular groove of twice on the outer wall of described piston, correspondingly described support is with two.
Be fixed with seal ring on the outer wall of described piston.
Described piston thread is connected to the end of described piston rod.
Technique effect of the present utility model is: the utility model is equipped with the supporting band of supporting and leading role at the outer wall of piston, and be provided with the gap on the supporting band, be open loop structure, can link up the both sides of supporting band, make the pressure balance of supporting band both sides, the abnormal sound noise can be do not produced during piston movement, the quality of oil cylinder can be improved; The material of supporting band is teflon, and is soft wear-resisting, long service life.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the piston in the utility model.
Fig. 3 is the sectional view of the piston in the utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is further described.
Among Fig. 1 ~ Fig. 3, comprise piston rod 1, cylinder barrel 2, seal ring 3, supporting band 4, piston 5, gap 6, annular groove 7 etc.
Such as Fig. 1 ~ shown in Figure 3, the utility model is a kind of nitrogen balance oil cylinder piston assembly parts, comprises cylinder barrel 2, piston rod 1 and piston 5.Piston 5 is fixed on the piston rod 1, and for example, piston 5 is threaded in the end of piston rod 1.Piston 5 is slidingly fitted in the cylinder barrel 2.
Such as Fig. 2, shown in Figure 3, have at least one annular groove 7 on the outer wall of piston 5, be embedded with supporting band 4 in the annular groove 7, the material of supporting band 4 is preferably teflon, and is soft wear-resisting, long service life.The outer surface of supporting band 4 exceeds the outer wall of piston 5, and the outer surface of supporting band 4 matches with cylinder barrel 2.Be provided with gap 6 between the two ends of supporting band 4, make on the supporting band 4 with opening, become open loop structure, the two ends of supporting band 4 are corresponding right angle or oblique angle.Preferably have twice annular groove 7 on the outer wall of piston 5, correspondingly supporting band 4 has two.
Also be fixed with seal ring 3 on the outer wall of piston 5, the cross section of seal ring 3 is U-shaped.
The utility model is installed supporting band 4 at the outer wall of piston 5, is used at cylinder barrel 2 internal supports and guide piston 5, is provided with gap 6 on the supporting band 4, can link up the both sides of supporting band 4, make the pressure balance of supporting band 4 both sides, can not produce the abnormal sound noise during piston 5 motion, can improve the quality of oil cylinder.
Claims (6)
1. nitrogen balance oil cylinder piston assembly parts, comprise cylinder barrel (2), piston rod (1) and piston (5), described piston (5) is fixed on described piston rod (1) upward and is slidingly fitted in the described cylinder barrel (2), it is characterized in that: have at least one annular groove (7) on the outer wall of described piston (5), be embedded with supporting band (4) in the described annular groove (7), the outer surface of described supporting band (4) exceeds the outer wall of described piston (5), is provided with gap (6) between the two ends of described supporting band (4).
2. according to nitrogen balance oil cylinder piston assembly parts claimed in claim 1, it is characterized in that: the two ends of described supporting band (4) are corresponding oblique angle.
3. according to claim 1 or 2 described nitrogen balance oil cylinder piston assembly parties, it is characterized in that: the material of described supporting band (4) is teflon.
4. according to claim 1 or 2 described nitrogen balance oil cylinder piston assembly parties, it is characterized in that: have the described annular groove of twice (7) on the outer wall of described piston (5), correspondingly described supporting band (4) has two.
5. according to nitrogen balance oil cylinder piston assembly parts claimed in claim 1, it is characterized in that: be fixed with seal ring (3) on the outer wall of described piston (5).
6. according to nitrogen balance oil cylinder piston assembly parts claimed in claim 1, it is characterized in that: described piston (5) is threaded in the end of described piston rod (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220524475 CN202867397U (en) | 2012-10-13 | 2012-10-13 | Piston component of nitrogen balancing oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220524475 CN202867397U (en) | 2012-10-13 | 2012-10-13 | Piston component of nitrogen balancing oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202867397U true CN202867397U (en) | 2013-04-10 |
Family
ID=48034120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220524475 Expired - Fee Related CN202867397U (en) | 2012-10-13 | 2012-10-13 | Piston component of nitrogen balancing oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202867397U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943782A (en) * | 2012-10-13 | 2013-02-27 | 无锡市协清机械制造有限公司 | Piston assembly of nitrogen gas balanced oil cylinder |
-
2012
- 2012-10-13 CN CN 201220524475 patent/CN202867397U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943782A (en) * | 2012-10-13 | 2013-02-27 | 无锡市协清机械制造有限公司 | Piston assembly of nitrogen gas balanced oil cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20151013 |
|
| EXPY | Termination of patent right or utility model |