CN202176579U - Oil cylinder end buffering device - Google Patents
Oil cylinder end buffering device Download PDFInfo
- Publication number
- CN202176579U CN202176579U CN2011202893370U CN201120289337U CN202176579U CN 202176579 U CN202176579 U CN 202176579U CN 2011202893370 U CN2011202893370 U CN 2011202893370U CN 201120289337 U CN201120289337 U CN 201120289337U CN 202176579 U CN202176579 U CN 202176579U
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- CN
- China
- Prior art keywords
- hole
- shell
- buffering device
- sliding spool
- spring
- 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 - Lifetime
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Abstract
The utility model discloses an oil cylinder end buffering device. The utility model is characterized in that the buffering device comprises a shell, a spring, a sliding valve core and a technical wire plug, wherein the technical wire plug is arranged on the upper end surface of the shell, the sliding valve core is arranged in a through hole in the axial position of the shell, the spring is arranged between the technical wire plug and the sliding valve core, and a trapezoid hole communicated with the through hole is arranged in the middle of the side wall of the shell. The buffering device has low requirements on the coaxiality and the lineality of a piston rod and a cylinder barrel. The buffering device has the advantages that the structure is simple and practical, the flexibility and the convenience are good, the manufacture cost is low, the failure rate is low, and installation and maintenance are easy, therefore, the buffering device has high use value and popularization value and prolongs the service life of a hydraulic cylinder.
Description
Technical field
The utility model relates to a kind of damping device, relates in particular to a kind of oil cylinder end damping device.
Background technique
Along with the development of China's heavy equipment, hydraulic system is with its distinctive advantage, and by increasing use, and hydraulic jack is an executive component important in the hydraulic system.Hydraulic jack is in use found the quality of hydraulic jack end damping device, is to influence the hydraulic jack important component part in working life.China has more than one hundred million oil cylinders to scrap because of damping device loses efficacy to cause every year, has produced huge waste.Mostly the buffering of using on the oil cylinder at present is the structure of bumper post and buffer cavity, and this structural requirement machining accuracy is higher, and the coaxality of piston rod and cylinder barrel is higher, and manufacture cost is higher.
The model utility content
It is high and coaxality and straightness accuracy piston rod and cylinder barrel are less demanding, the oil cylinder end damping device that manufacture cost is lower that the utility model technical problem to be solved provides a kind of machining accuracy.
For solving the problems of the technologies described above; The technological scheme that the utility model is taked is: a kind of oil cylinder end damping device, it is characterized in that said damping device comprises shell, spring, sliding spool and technology plug, and the axial position of said shell is provided with the through hole suitable with sliding spool; Be provided with and the suitable tapped hole of said technology plug in the upper end of said through hole; The middle part of said side wall of outer shell is provided with the trapezoidal hole that is connected with said through hole, and the outboard end of said trapezoidal hole is provided with internal thread, and the center of said shell is provided with the process deposits groove that is connected with said trapezoidal hole; The upper-end surface of said sliding spool is provided with spring base hole; The middle and lower part of said sliding spool is provided with blind hole, and the middle part of said sliding spool is provided with the horizontal hole that is connected with blind hole, and said spring base hole and said blind hole are connected through aperture; Be evenly equipped with the damping hole that is connected with said blind hole in the bottom of said horizontal hole, be provided with spring between said technology plug and the said sliding spool.
Adopt the beneficial effect that technique scheme produced to be: said damping device is less demanding to the coaxality of piston rod and cylinder barrel and straightness accuracy; Simple and practical, flexible, convenient, manufacture cost is lower, rate of fault is low, installation and maintenance are easy; Have value for applications preferably, prolonged the working life of hydraulic jack.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation.
Fig. 1 is the utility model structural representation;
Fig. 2 is that the utility model A-A is to sectional view;
Fig. 3 is the cut-away view of outer cover of the utility model;
Wherein: 1, technology plug 2, spring 3, shell 4, sliding spool 5, damping hole 6, trapezoidal hole 7, process deposits groove 8, blind hole 9, through hole 10, spring base hole 11, horizontal hole.
Embodiment
A kind of oil cylinder end damping device; It is characterized in that said damping device comprises shell 3, spring 2, sliding spool 4 and technology plug 1; The axial position of said shell 3 is provided with the through hole 9 suitable with sliding spool 4, and the upper end of said through hole 9 is provided with the tapped hole suitable with said technology plug 1, and the middle part of said shell 3 sidewalls is provided with the trapezoidal hole 6 that is connected with said through hole 9; The outboard end of said trapezoidal hole 6 is provided with internal thread; The center of said shell 3 is provided with the process deposits groove 7 that is connected with said trapezoidal hole 6, and the upper-end surface of said sliding spool 4 is provided with spring base hole 10, and the middle and lower part of said sliding spool 4 is provided with blind hole 8; The middle part of said sliding spool 4 is provided with the horizontal hole 11 that is connected with blind hole 8; Said spring base hole 10 and said blind hole 8 are connected through aperture, are evenly equipped with the damping hole 5 that is connected with said blind hole 8 in the bottom of said horizontal hole 11, are provided with spring 2 between said technology plug 1 and the said sliding spool 4.
In use, preceding buffering is installed in the front end position of cylinder barrel, and the back buffering is encapsulated in the bottom of cylinder barrel; Oil pipe is connected with said horizontal hole 11; Said damping device efficient buffer the power of piston, and said device to the coaxality of piston rod and cylinder barrel and straightness accuracy less demanding, simple and practical, flexible, convenient, manufacture cost is lower, rate of fault is low, installation and maintenance are easy; Have value for applications preferably, prolonged the working life of hydraulic jack.
Claims (1)
1. oil cylinder end damping device; It is characterized in that said damping device comprises shell (3), spring (2), sliding spool (4) and technology plug (1); The axial position of said shell (3) is provided with and the suitable through hole (9) of sliding spool (4); The upper end of said through hole (9) is provided with and the suitable tapped hole of said technology plug (1); The middle part of said shell (3) sidewall is provided with the trapezoidal hole (6) that is connected with said through hole (9), and the outboard end of said trapezoidal hole (6) is provided with internal thread, and the center of said shell (3) is provided with the process deposits groove (7) that is connected with said trapezoidal hole (6); The upper-end surface of said sliding spool (4) is provided with spring base hole (10); The middle and lower part of said sliding spool (4) is provided with blind hole (8), and the middle part of said sliding spool (4) is provided with the horizontal hole (11) that is connected with blind hole (8), and said spring base hole (10) and said blind hole (8) are connected through aperture; Be evenly equipped with the damping hole (5) that is connected with said blind hole (8) in the bottom of said horizontal hole (11), be provided with spring (2) between said technology plug (1) and the said sliding spool (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202893370U CN202176579U (en) | 2011-08-10 | 2011-08-10 | Oil cylinder end buffering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202893370U CN202176579U (en) | 2011-08-10 | 2011-08-10 | Oil cylinder end buffering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202176579U true CN202176579U (en) | 2012-03-28 |
Family
ID=45866460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202893370U Expired - Lifetime CN202176579U (en) | 2011-08-10 | 2011-08-10 | Oil cylinder end buffering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202176579U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806602A (en) * | 2015-04-29 | 2015-07-29 | 宁波储力叉车有限公司 | Buffering device for oil cylinder |
| CN105179361A (en) * | 2015-09-01 | 2015-12-23 | 徐州重型机械有限公司 | Hydraulic buffer oil cylinder and crane |
-
2011
- 2011-08-10 CN CN2011202893370U patent/CN202176579U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806602A (en) * | 2015-04-29 | 2015-07-29 | 宁波储力叉车有限公司 | Buffering device for oil cylinder |
| CN105179361A (en) * | 2015-09-01 | 2015-12-23 | 徐州重型机械有限公司 | Hydraulic buffer oil cylinder and crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120328 |