CN202867412U - Guiding mechanism of piston rod of nitrogen balancing oil cylinder - Google Patents
Guiding mechanism of piston rod of nitrogen balancing oil cylinder Download PDFInfo
- Publication number
- CN202867412U CN202867412U CN 201220524009 CN201220524009U CN202867412U CN 202867412 U CN202867412 U CN 202867412U CN 201220524009 CN201220524009 CN 201220524009 CN 201220524009 U CN201220524009 U CN 201220524009U CN 202867412 U CN202867412 U CN 202867412U
- Authority
- CN
- China
- Prior art keywords
- piston rod
- front cover
- endoporus
- guide sleeve
- cylinder barrel
- 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 a guiding mechanism of a piston rod of a nitrogen balancing oil cylinder. The guiding mechanism of the piston rod of the nitrogen balancing oil cylinder comprises a cylinder barrel, the piston rod, a front end cover and a guiding sleeve. The front end cover is fixed at the front end of the cylinder barrel. The piston rod is arranged in the cylinder barrel and penetrates through the front end cover. The guiding sleeve is arranged between the front end cover and the piston rod. A dust-proof cap is arranged between the guiding sleeve and the piston rod. A sealing ring is arranged between the front end cover and the piston rod. According to the guiding mechanism of the piston rod of the nitrogen balancing oil cylinder, the dust-proof cap is arranged at the front end of the guiding sleeve, the sealing ring is arranged at the rear end of the guiding sleeve, and therefore sealing performance is good, dust is prevented from falling into the cylinder barrel, and the service life of the oil cylinder is prolonged.
Description
Technical field
The utility model relates to the main shaft counterweight nitrogen balance system of lathe class machining center, specifically a kind of guide structure of nitrogen balance cylinder piston rod.
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 is provided with guide sleeve between the front cover of cylinder barrel and piston rod, play sealing and support piston bar.Existing guide sleeve poor sealing performance, thus working life of oil cylinder affected.
Summary of the invention
The utility model provides a kind of guide structure of nitrogen balance cylinder piston rod for the problems referred to above, this guide structure good seal performance, the working life that can improve oil cylinder.
According to the technical solution of the utility model: a kind of guide structure of nitrogen balance cylinder piston rod, comprise cylinder barrel, piston rod, front cover and guide sleeve, described front cover is fixed on the front end of described cylinder barrel, described piston rod is installed in the described cylinder barrel and passes described front cover, between described front cover and the described piston rod described guide sleeve is installed, between described guide sleeve and the described piston rod dust cap is installed, between described front cover and the described piston rod seal ring is installed.
Described guide sleeve comprises body cylindraceous, be provided with flange on the rear end outer wall of described body, be disposed with to the back-end the first coaxial endoporus and the second endoporus from front end on the inwall of described body, the diameter of described the first endoporus is provided with the dust cap mounting groove greater than the diameter of described the second endoporus between described the first endoporus and described the second endoporus; Described dust cap is embedded in the described dust cap mounting groove, and stretches out forward from described the first endoporus; The front side of described front cover has groove, and the flange of described guide sleeve is installed in the described groove, and is pressed on the described front cover by mounting plate.
Described seal ring is resisted against on the ear end face of described guide sleeve.
The cross section of described seal ring is U-shaped.
The material of described guide sleeve is tin bronze.
Be provided with packing ring between the front-end face of described cylinder barrel and the described front cover.
Technique effect of the present utility model is: the utility model is provided with dust cap at the front end of guide sleeve, and its rear end is provided with seal ring, and good seal performance can guarantee that dust does not fall into cylinder barrel, has prolonged the life-span of oil cylinder; The material of guide sleeve is tin bronze, and is soft, wear-resisting, both reduced the wearing and tearing that friction brings, and improved again the protection to piston rod.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the guide sleeve in the utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is further described.
Among Fig. 1, Fig. 2, comprise dust cap 1, guide sleeve 2, the first endoporus 21, dust cap mounting groove 22, the second endoporus 23, flange 24, body 25, mounting plate 3, seal ring 4, front cover 5, packing ring 6, cylinder barrel 7, piston rod 8 etc.
As shown in Figure 1, the utility model is a kind of guide structure of nitrogen balance cylinder piston rod, comprises cylinder barrel 7, piston rod 8, front cover 5 and guide sleeve 2.Front cover 5 is fixed on the front end of cylinder barrel 7, is provided with packing ring 6 between the front-end face of cylinder barrel 7 and the front cover 5; Piston rod 8 is installed in the cylinder barrel 7 and passes front cover 5, between front cover 5 and the piston rod 8 guide sleeve 2 is installed.
The utility model is equipped with dust cap 1 between guide sleeve 2 and piston rod 8, between front cover 5 and piston rod 8 seal ring 4 is installed.Seal ring 4 is resisted against on the ear end face of guide sleeve 2, and its cross section is U-shaped.
As shown in Figure 2, guide sleeve 2 comprises body 25 cylindraceous, be provided with flange 24 on the rear end outer wall of body 25, be disposed with to the back-end the first coaxial endoporus 21 and the second endoporus 23 from front end on the inwall of body 25, the diameter of the first endoporus 21 is provided with dust cap mounting groove 22 greater than the diameter of the second endoporus 23 between the first endoporus 21 and the second endoporus 23.The material of guide sleeve 2 is tin bronze.
Referring to Fig. 1, dust cap 1 is embedded in the dust cap mounting groove 22 of guide sleeve 2 again, and stretches out forward from the first endoporus 21; The front side of front cover 5 has groove, and the flange 24 of guide sleeve 2 is installed in the groove, and is pressed on the front cover 5 by mounting plate 3.
The utility model is provided with dust cap 1 at the front end of guide sleeve 2, and its rear end is provided with seal ring 4, and good seal performance can guarantee that dust does not fall into cylinder barrel 7; The material of guide sleeve 2 is tin bronze, and is soft, wear-resisting, both reduced the wearing and tearing that friction brings, and improved again the protection to piston rod 8, greatly prolonged performance and the life-span of oil cylinder.
Claims (6)
1. the guide structure of a nitrogen balance cylinder piston rod, comprise cylinder barrel (7), piston rod (8), front cover (5) and guide sleeve (2), described front cover (5) is fixed on the front end of described cylinder barrel (7), described piston rod (8) is installed in the described cylinder barrel (7) and passes described front cover (5), between described front cover (5) and the described piston rod (8) described guide sleeve (2) is installed, it is characterized in that: between described guide sleeve (2) and the described piston rod (8) dust cap (1) is installed, between described front cover (5) and the described piston rod (8) seal ring (4) is installed.
2. according to the guide structure of nitrogen balance cylinder piston rod claimed in claim 1, it is characterized in that: described guide sleeve (2) comprises body cylindraceous (25), be provided with flange (24) on the rear end outer wall of described body (25), be disposed with to the back-end coaxial the first endoporus (21) and the second endoporus (23) from front end on the inwall of described body (25), the diameter of described the first endoporus (21) is provided with dust cap mounting groove (22) greater than the diameter of described the second endoporus (23) between described the first endoporus (21) and described the second endoporus (23); Described dust cap (1) is embedded in the described dust cap mounting groove (22), and stretches out forward from described the first endoporus (21); The front side of described front cover (5) has groove, and the flange (24) of described guide sleeve (2) is installed in the described groove, and is pressed on the described front cover (5) by mounting plate (3).
3. according to the guide structure of nitrogen balance cylinder piston rod claimed in claim 1, it is characterized in that: described seal ring (4) is resisted against on the ear end face of described guide sleeve (2).
4. according to the guide structure of nitrogen balance cylinder piston rod claimed in claim 1, it is characterized in that: the cross section of described seal ring (4) is U-shaped.
5. according to the guide structure of nitrogen balance cylinder piston rod claimed in claim 1, it is characterized in that: the material of described guide sleeve (2) is tin bronze.
6. according to the guide structure of nitrogen balance cylinder piston rod claimed in claim 1, it is characterized in that: be provided with packing ring (6) between the front-end face of described cylinder barrel (7) and the described front cover (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220524009 CN202867412U (en) | 2012-10-13 | 2012-10-13 | Guiding mechanism of piston rod of nitrogen balancing oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220524009 CN202867412U (en) | 2012-10-13 | 2012-10-13 | Guiding mechanism of piston rod of nitrogen balancing oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202867412U true CN202867412U (en) | 2013-04-10 |
Family
ID=48034135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220524009 Expired - Fee Related CN202867412U (en) | 2012-10-13 | 2012-10-13 | Guiding mechanism of piston rod of nitrogen balancing oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202867412U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943787A (en) * | 2012-10-13 | 2013-02-27 | 无锡市协清机械制造有限公司 | Guide structure of piston rod of nitrogen gas balanced oil cylinder |
| CN107756127A (en) * | 2016-08-18 | 2018-03-06 | 大连精维液压技术有限公司 | A kind of pull-type nitrogen balance device |
-
2012
- 2012-10-13 CN CN 201220524009 patent/CN202867412U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943787A (en) * | 2012-10-13 | 2013-02-27 | 无锡市协清机械制造有限公司 | Guide structure of piston rod of nitrogen gas balanced oil cylinder |
| CN102943787B (en) * | 2012-10-13 | 2015-09-16 | 无锡市协清机械制造有限公司 | The guide structure of nitrogen balance cylinder piston rod |
| CN107756127A (en) * | 2016-08-18 | 2018-03-06 | 大连精维液压技术有限公司 | A kind of pull-type nitrogen balance device |
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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 |