CN202100554U - Heavy-load hydraulic cylinder - Google Patents
Heavy-load hydraulic cylinder Download PDFInfo
- Publication number
- CN202100554U CN202100554U CN2011201536893U CN201120153689U CN202100554U CN 202100554 U CN202100554 U CN 202100554U CN 2011201536893 U CN2011201536893 U CN 2011201536893U CN 201120153689 U CN201120153689 U CN 201120153689U CN 202100554 U CN202100554 U CN 202100554U
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- CN
- China
- Prior art keywords
- guide sleeve
- hole
- cylinder
- piston
- cylinder barrel
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a heavy-load hydraulic cylinder, comprising a cylinder barrel, a hinge shaft, a guide sleeve, a cylinder cover, a press cover, a piston rod and a piston, wherein the hinge shaft is tightly fixed outside the cylinder barrel, the press cover is tightly fixed at the guide sleeve, and the guide sleeve and the cylinder cover are respectively provided with an oil opening, are tightly fixed at two cylinder barrel flanges at two ends of the cylinder barrel and are sealed by an O-shaped ring; and the piston is arranged in the cylinder barrel, one support belt is arranged on the piston, the piston is tightly fixed at one end of the piston rod by a buffer nut, the other end of the piston rod is extended out of the cylinder barrel through a through hole of the guide sleeve and a through hole of the press cover, another support belt and an oil seal are arranged in an annular groove of the through hole of the guide sleeve, and the through hole of the press cover is internally provided with a dust ring. The heavy-load hydraulic cylinder is characterized in that another two annular grooves are arranged in the through hole of the guide sleeve and are internally and respectively provided with the phenolic aldehyde cloth clamp support belt. The heavy-load hydraulic cylinder guarantees that the piston rod is preferably concentric with an end cover during moving, and prevents a surface from being scratched since the piston rod can not be directly rubbed with a seal press cover of the hydraulic cylinder.
Description
Technical field
The utility model relates to a kind of overload hydraulic oil cylinder, and the step rate that specifically relates to a kind of hot-continuous-rolling strip steel factory promotes the overload hydraulic cylinder.
Background technique
In hot-continuous-rolling strip steel factory; Owing to promoting oil hydraulic cylinder installation and design reason; Make oil hydraulic cylinder weight concentrate on the upper surface that stretches out piston rod in the furnace bottom mechanical lifting process, after the wearing and tearing of guide sleeve support ring, piston rod directly contacts friction with the hydraulic cylinder sealing gland and causes piston rod surface to be pulled.(about 2 tons of oil hydraulic cylinder weight), big than other regional fault treatment difficulty during this oil hydraulic cylinder device fails, length expends time in.Consume great amount of manpower, time, effect is very bad, influences the production time, and the danger of operation simultaneously is bigger.
Summary of the invention
In order to overcome the above-mentioned deficiency of existing overload hydraulic cylinder, the overload hydraulic cylinder that the utility model provides a kind of use that is used for the step rate lifting to avoid piston rod to pull.
This overload hydraulic cylinder comprises cylinder barrel, hinging shaft, guide sleeve, cylinder cap, gland, piston rod and piston; Hinging shaft is fastened on outside the cylinder barrel; Gland is fastened on guide sleeve, and guide sleeve and cylinder cap all have a hydraulic fluid port, and guide sleeve and cylinder cap are fastened on the cylinder barrel flange at cylinder barrel two ends and are sealed by O type circle; Piston is installed in the cylinder barrel; Supporting band is installed on piston, and piston is by cushioning the end that nut is fastened on piston rod, and the other end of piston rod stretches out outside the cylinder barrel from the through hole of guide sleeve and the through hole of gland; In the circular groove of the through hole of guide sleeve, supporting band and oil sealing are installed; In the through hole of gland, dust ring is being set, is it is characterized in that: the through hole at guide sleeve has the twice circular groove in addition, and phenolic aldehyde folder cloth supporting band all is being set in this twice circular groove.
In order to improve the concentricity of piston rod when action and guide sleeve, this overload hydraulic cylinder has one circular groove in addition in the through hole of gland, phenolic aldehyde is being set in this circular groove is pressing from both sides the cloth supporting band.
The utility model is the gland and the guide sleeve structure of the existing oil hydraulic cylinder of change; Set up phenolic aldehyde folder cloth supporting band at oil hydraulic cylinder gland place and guide sleeve inside; Guarantee the concentric good of piston rod when action and end cap, avoid that piston rod and hydraulic cylinder sealing gland are direct to rub and cause surface tear.Prolong the replacement cycle of the piston rod of oil hydraulic cylinder, improved the working life of spare part, reduced the spare part loss.
Description of drawings
Fig. 1 is the longitudinal sectional view of this overload hydraulic cylinder.
Fig. 2 is the axial sectional view of guide pin bushing and gland, and Fig. 1 amplifies relatively.
Fig. 3 is and the corresponding left view of Fig. 1.
Among the above-mentioned figure:
1-piston rod 2-gland 3-hexagon socket cap head screw 4-guide sleeve
5-hydraulic fluid port 6-chock plug 7-O type circle 8-cylinder barrel flange 9-cylinder barrel
10-hinging shaft 11-cushion collar 12-piston 13-cushions nut
14-cylinder barrel flange 15-hydraulic fluid port 16-cylinder cap 17-hexagon socket cap head screw
18-O type circle 19-supporting band 20-O type circle 21-hole envelope
22-hexagon socket cap head screw 23-supporting band 24-axle envelope 25-circular groove
26-phenolic aldehyde folder cloth supporting band 27-circular groove 28-phenolic aldehyde folder cloth supporting band
29-reinforced seal 30-circular groove 31-phenolic aldehyde folder cloth supporting band 32-dust ring
33-through hole 34-through hole
Embodiment
Below in conjunction with the embodiment of embodiment and this overload hydraulic of accompanying drawing detailed description cylinder thereof, but the embodiment of this overload hydraulic cylinder is not limited to following embodiment.
Embodiment
The overload hydraulic cylinder that Fig. 1 and Fig. 3 describe comprises cylinder barrel 9, hinging shaft 10, guide sleeve 4, cylinder cap 16, gland 2, piston rod 1 and piston 12; Hinging shaft 10 is fastened on outside the cylinder barrel 9; Gland 2 is fastened on guide sleeve 4; Guide sleeve 4 all has a hydraulic fluid port with cylinder cap 16, and guide sleeve 4 seals with cylinder barrel flange 14 and by O type circle such as O type circle 7 with cylinder cap 16 is fastened on cylinder barrel 9 two ends by hexagon socket cap head screw such as hexagon socket cap head screw 17 cylinder barrel flange 8.Piston 12 is installed in the cylinder barrel 9; Supporting band 19 and hole envelope 21 are installed on piston 12; Piston 12 is by cushioning the right-hand member that nut 13 is fastened on piston rod 1 among Fig. 1, and the left end of piston rod 1 stretches out outside the cylinder barrel 9 from the through hole 33 of guide sleeve 4 and the through hole 34 of gland 2, and supporting band 23 and oil sealing 24 are installed in the circular groove of through hole 33; Through hole 34 at gland 2 is being provided with dust ring 32; The characteristic of present embodiment is to set up circular groove 25 and circular groove 27 at the through hole 33 of guide sleeve 4, and phenolic aldehyde folder cloth supporting band 26 and phenolic aldehyde folder cloth supporting band 28 are being set respectively in circular groove 25 and circular groove 27, sees Fig. 2.With the concentricity of guide sleeve 4, present embodiment sets up in the circular groove 30 at the through hole 34 of gland 2 during in order to ensure piston rod 1 action, in circular groove, phenolic aldehyde is being set in 30 and is pressing from both sides cloth supporting band 31.
Piston 12 diameters of present embodiment are Φ 320mm, piston rod 1 diameter of phi 220mm, working stroke 1000mm, range 1150mm.
Claims (2)
1. overload hydraulic cylinder; It comprises cylinder barrel, hinging shaft, guide sleeve, cylinder cap, gland, piston rod and piston; Hinging shaft is fastened on outside the cylinder barrel; Gland is fastened on guide sleeve, and guide sleeve and cylinder cap all have a hydraulic fluid port, and guide sleeve and cylinder cap are fastened on the cylinder barrel flange at cylinder barrel two ends and are sealed by O type circle; Piston is installed in the cylinder barrel; Supporting band is installed on piston, and piston is by cushioning the end that nut is fastened on piston rod, and the other end of piston rod stretches out outside the cylinder barrel from the through hole of guide sleeve and the through hole of gland; In the circular groove of the through hole of guide sleeve, supporting band and oil sealing are installed; In the through hole of gland, dust ring is being set, is it is characterized in that: the through hole at guide sleeve has the twice circular groove in addition, and phenolic aldehyde folder cloth supporting band all is being set in this twice circular groove.
2. overload hydraulic cylinder according to claim 1 is characterized in that: circular groove is arranged one in the through hole of gland in addition, phenolic aldehyde folder cloth supporting band is being set in this circular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201536893U CN202100554U (en) | 2011-05-11 | 2011-05-11 | Heavy-load hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201536893U CN202100554U (en) | 2011-05-11 | 2011-05-11 | Heavy-load hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202100554U true CN202100554U (en) | 2012-01-04 |
Family
ID=45386569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201536893U Expired - Fee Related CN202100554U (en) | 2011-05-11 | 2011-05-11 | Heavy-load hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202100554U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879343A (en) * | 2015-06-24 | 2015-09-02 | 中国北方车辆研究所 | Hydrocylinder used for human-assisted walking mechanism |
| CN106523461A (en) * | 2016-12-06 | 2017-03-22 | 泸州长江液压密封件有限公司 | Movable hydraulic cylinder convenient to demount and rapid in movement |
| CN108316894A (en) * | 2018-03-20 | 2018-07-24 | 阜新市石油工具厂 | Twin-tub well head supporting type hydraulic petroleum lifting device |
| CN111608984A (en) * | 2020-06-02 | 2020-09-01 | 徐州徐工液压件有限公司 | Oil cylinder guiding and sealing system suitable for mine dust and humid environment |
-
2011
- 2011-05-11 CN CN2011201536893U patent/CN202100554U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879343A (en) * | 2015-06-24 | 2015-09-02 | 中国北方车辆研究所 | Hydrocylinder used for human-assisted walking mechanism |
| CN106523461A (en) * | 2016-12-06 | 2017-03-22 | 泸州长江液压密封件有限公司 | Movable hydraulic cylinder convenient to demount and rapid in movement |
| CN108316894A (en) * | 2018-03-20 | 2018-07-24 | 阜新市石油工具厂 | Twin-tub well head supporting type hydraulic petroleum lifting device |
| CN111608984A (en) * | 2020-06-02 | 2020-09-01 | 徐州徐工液压件有限公司 | Oil cylinder guiding and sealing system suitable for mine dust and humid environment |
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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: 20120104 Termination date: 20170511 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |