CN205654637U - Pneumatic cylinder with adjustable piston rod stroke - Google Patents
Pneumatic cylinder with adjustable piston rod stroke Download PDFInfo
- Publication number
- CN205654637U CN205654637U CN201620449428.9U CN201620449428U CN205654637U CN 205654637 U CN205654637 U CN 205654637U CN 201620449428 U CN201620449428 U CN 201620449428U CN 205654637 U CN205654637 U CN 205654637U
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- CN
- China
- Prior art keywords
- shaped
- cylinder
- thick bamboo
- lining
- piston
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a pneumatic cylinder with adjustable piston rod stroke, including cylinder, piston, piston rod, sealing washer. The cylinder comprises a U -shaped sleeve section of thick bamboo and U -shaped section of thick bamboo lining, be equipped with the screw thread on the external diameter of U -shaped sleeve section of thick bamboo opening one end, a U -shaped section of thick bamboo is equipped with annular upturned eaves on serving as a contrast the one end external diameter of remaining silent, is equipped with the internal thread on the upturned eaves, the cylinder inner wall of a U -shaped sleeve section of thick bamboo embolias each other with the cylinder excircle of U -shaped section of thick bamboo lining and forms the cooperation of simple crack to make the internal thread on the U -shaped section of thick bamboo lining upturned eaves close soon on the external screw thread of U -shaped sleeve section of thick bamboo opening one end, screw thread and cap and a tight U -shaped sleeve section of thick bamboo and U -shaped section of thick bamboo lining make both fixed, be equipped with the multi -seal circle on the fitting surface of a U -shaped sleeve section of thick bamboo and U -shaped section of thick bamboo lining, constitute sealed cooperation between the inner wall of piston and U -shaped section of thick bamboo lining to what form the piston both ends has pole chamber and a no pole chamber. The utility model discloses a threaded connection between a U -shaped sleeve section of thick bamboo and the U -shaped section of thick bamboo lining forms dextrorotation and shortens cylinder length, derotation increase cylinder length to messenger's piston stroke is adjustable.
Description
Technical field
This utility model relates to a kind of hydraulic cylinder, particularly relates to a kind of adjustable hydraulic cylinder structure of piston rod stroke, belongs to hydraulic component design manufacturing technology field.
Background technology
The impulse stroke of hydraulic cylinder piston rod is determined by effective active length and the piston length of Barrel of Hydraulic Cylinders, and effective active length of usual Barrel of Hydraulic Cylinders deducts piston length and is the impulse stroke of piston rod.Effective active length of conventional cylinder cylinder barrel and piston length are constant, and therefore its impulse stroke is immutable.Such hydraulic cylinder is under a few thing position inaccuracy or unpredictable special environment, it is impossible to meets and installs needs or the accurate requirement of piston rod stroke.
Summary of the invention
For conventional cylinder technical deficiency as described by background technology, this utility model provides a kind of adjustable hydraulic cylinder of piston rod stroke.
To achieve these goals, this utility model takes techniques below scheme to be implemented: a kind of adjustable hydraulic cylinder of piston rod stroke, and including cylinder barrel, piston, piston rod, sealing ring, described cylinder barrel is made up of the U-shaped sleeve of outer layer and the U-shaped cylinder lining of internal layer；Described piston rod is fixedly connected on piston, and stretches out outside the U-shaped cylinder lining closed end of internal layer, it is characterised in that:
The external diameter of described U-shaped sleeve openings one end is provided with screw thread；
The U-shaped cylinder of described internal layer serves as a contrast one end external diameter of remaining silent and is provided with the diameter annular cornice more than cylinder lining external diameter, and is provided with the female thread of cellular type on cornice；
Mutually it is inserted in opening relative fashion between the cylinder cylindrical that the cylindrical inner wall of described U-shaped sleeve serves as a contrast with U-shaped cylinder and is constituted letter gap and coordinate, make the internal thread rotation on U-shaped cylinder lining cornice be combined on the external screw thread of U-shaped sleeve openings one end simultaneously；
Described screw thread cap screw on the external screw thread of U-shaped sleeve openings one end and tightly U-shaped sleeve and U-shaped cylinder lining make both fix；
The face that coordinates between the cylinder cylindrical that the cylindrical inner wall of described U-shaped sleeve serves as a contrast with U-shaped cylinder is provided with multiple-sealed circle；
Constitute to seal by sealing ring between the inwall that described piston serves as a contrast with U-shaped cylinder and coordinate, and form rod chamber and the rodless cavity at piston two ends.
This utility model is fastened by the threaded and cap between U-shaped sleeve and U-shaped cylinder lining, is sealed against each other composition Barrel of Hydraulic Cylinders, and shorten cylinder barrel length, the form of derotation increase cylinder barrel length by screw thread dextrorotation, realizing the scalable of piston rod stroke, its simple in construction, hydraulic cylinder easy to adjust, that disclosure satisfy that under special operation condition are installed and the accurate needs of piston rod stroke.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of utility model.
In fig. 1: 1 be U-shaped sleeve, 2 be piston, 3 and 4 be sealing ring, 5 be screw thread cap, 501 for and cap pull hole, 6 be U-shaped cylinder lining, 601 be annular cornice, 602 serve as a contrast for U-shaped cylinder pull hole, 7 be piston rod.
Detailed description of the invention
Below in conjunction with accompanying drawing this utility model is further explained explanation:
As shown in Figure 1, the cylinder barrel in this utility model is made up of the U-shaped sleeve 1 of outer layer and the U-shaped cylinder lining 6 of internal layer；The external diameter of U-shaped sleeve 1 open at one end is provided with screw thread；The U-shaped cylinder lining 6 of internal layer one end external diameter of remaining silent is provided with the diameter annular cornice 601 more than cylinder lining external diameter, and is provided with the female thread of cellular type on annular cornice 601；Mutually it is inserted in opening relative fashion between the cylindrical inner wall of U-shaped sleeve 1 and the cylinder cylindrical of U-shaped cylinder lining 6 and is constituted letter gap and coordinate, make the internal thread rotation on annular cornice 601 be combined on the external screw thread of U-shaped sleeve 1 open at one end simultaneously；Screw thread cap 5 screw on the external screw thread of U-shaped sleeve 1 open at one end and tightly U-shaped sleeve 1 and U-shaped cylinder lining 6 make both fix；The face that coordinates between the cylindrical inner wall of U-shaped sleeve 1 and the cylinder cylindrical of U-shaped cylinder lining 6 is provided with multiple-sealed circle 4；Piston rod 7 is fixedly connected on piston 2；Constitute to seal by sealing ring 3 between piston 2 and the inwall of U-shaped cylinder lining 6 and coordinate, and form rod chamber and the rodless cavity at piston 2 two ends.
When needs increase piston rod 7 stroke, fill in respectively with two Special wrenchs and hole 501 pulled by cap and U-shaped cylinder lining pulls unwinding thread cap 5 in hole 602, reversely rotating U-shaped cylinder lining 6 makes effective active length of cylinder barrel increase, and uses same procedure tight screw thread cap 5, and piston rod 7 stroke strengthens；
When needs shorten piston rod 7 stroke, filling in respectively with two Special wrenchs and hole 501 pulled by cap and U-shaped cylinder lining pulls unwinding thread cap 5 in hole 602, rotate forward U-shaped cylinder lining 6 and make effective active length of cylinder barrel reduce, piston rod 7 stroke shortens.
Claims (3)
1. the adjustable hydraulic cylinder of piston rod stroke, including cylinder barrel, piston, piston rod, sealing ring, described cylinder barrel is made up of the U-shaped sleeve of outer layer and the U-shaped cylinder lining of internal layer；Described piston rod is fixedly connected on piston, and stretches out outside the U-shaped cylinder lining closed end of internal layer, it is characterised in that:
The external diameter of described U-shaped sleeve openings one end is provided with screw thread；
The U-shaped cylinder of described internal layer serves as a contrast one end external diameter of remaining silent and is provided with the diameter annular cornice more than cylinder lining external diameter, and is provided with the female thread of cellular type on cornice；
Mutually it is inserted in opening relative fashion between the cylinder cylindrical that the cylindrical inner wall of described U-shaped sleeve serves as a contrast with U-shaped cylinder and is constituted letter gap and coordinate, make the internal thread rotation on U-shaped cylinder lining cornice be combined on the external screw thread of U-shaped sleeve openings one end simultaneously；
Constitute to seal by sealing ring between the inwall that described piston serves as a contrast with U-shaped cylinder and coordinate, and form rod chamber and the rodless cavity at piston two ends.
A kind of adjustable hydraulic cylinder of piston rod stroke the most according to claim 1, it is characterised in that: the face that coordinates between the cylinder cylindrical that the cylindrical inner wall of described U-shaped sleeve serves as a contrast with U-shaped cylinder is provided with multiple-sealed circle.
A kind of adjustable hydraulic cylinder of piston rod stroke the most according to claim 1, it is characterised in that: described screw thread cap screw on the external screw thread of U-shaped sleeve openings one end and tightly U-shaped sleeve and U-shaped cylinder lining make both fix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620449428.9U CN205654637U (en) | 2016-05-17 | 2016-05-17 | Pneumatic cylinder with adjustable piston rod stroke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620449428.9U CN205654637U (en) | 2016-05-17 | 2016-05-17 | Pneumatic cylinder with adjustable piston rod stroke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205654637U true CN205654637U (en) | 2016-10-19 |
Family
ID=57402895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620449428.9U Expired - Fee Related CN205654637U (en) | 2016-05-17 | 2016-05-17 | Pneumatic cylinder with adjustable piston rod stroke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205654637U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692079A (en) * | 2020-06-18 | 2020-09-22 | 潍坊工程职业学院 | Adjustable compression device is with adjusting supercharging device |
| CN112145498A (en) * | 2020-09-27 | 2020-12-29 | 无锡嘉纳机械制造有限公司 | Controllable two-way pneumatic cylinder of stroke |
| CN113107812A (en) * | 2021-04-30 | 2021-07-13 | 重庆市南川区金鑫纸业有限公司 | Vacuum system dewatering device for papermaking |
-
2016
- 2016-05-17 CN CN201620449428.9U patent/CN205654637U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692079A (en) * | 2020-06-18 | 2020-09-22 | 潍坊工程职业学院 | Adjustable compression device is with adjusting supercharging device |
| CN112145498A (en) * | 2020-09-27 | 2020-12-29 | 无锡嘉纳机械制造有限公司 | Controllable two-way pneumatic cylinder of stroke |
| CN113107812A (en) * | 2021-04-30 | 2021-07-13 | 重庆市南川区金鑫纸业有限公司 | Vacuum system dewatering device for papermaking |
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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: 20161019 Termination date: 20200517 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |