CN204186673U - A kind of oil cylinder with active connection - Google Patents
A kind of oil cylinder with active connection Download PDFInfo
- Publication number
- CN204186673U CN204186673U CN201420525174.5U CN201420525174U CN204186673U CN 204186673 U CN204186673 U CN 204186673U CN 201420525174 U CN201420525174 U CN 201420525174U CN 204186673 U CN204186673 U CN 204186673U
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- CN
- China
- Prior art keywords
- oil cylinder
- piston rod
- aluminium cover
- clevis
- joint
- 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.)
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Abstract
The utility model discloses a kind of oil cylinder with active connection, comprise oil cylinder body and clevis, piston rod is provided with in described oil cylinder body, wherein, described piston rod and clevis are threaded connection bar and are connected, the joint that described piston rod and clevis are oppositely arranged is hollow structure and is formed with internal thread, described whorl brace rod is put in the hollow structure of joint and is connected by screw-thread fit, described upper cover of piston rod is provided with the first aluminium cover and the second aluminium cover, y-type seal ring is provided with between described first aluminium cover and the second aluminium cover, described second aluminium overlaps and be provided with dust ring between the joint on piston rod, described first aluminium cover is roughly the same with the shape size of the second aluminium cover.The oil cylinder of what the utility model provided have active connection, oil cylinder body and clevis are threaded connection bar be connected, thus central position can not produce skew when can ensure assembling, make joint produce more uniform strength, extend product working life.
Description
Technical field
The utility model relates to a kind of oil cylinder, particularly relates to a kind of oil cylinder with active connection.
Background technique
Existing oil cylinder and link are generally fixedly linked by electric welding, as depicted in figs. 1 and 2.Oil cylinder 1 and clevis 2 directly weld together.Clevis 2 is directly welded on oil cylinder 1 by existing structure, because welding procedure gas stress is concentrated larger, there is larger welding residual stress and distortion, there is the possibility producing weld defects, the defects such as joint performance uneven and crack arrest difference, therefore must design the cooling system matched, not only add cost of production, and the quite complicated trouble of system, affect manufacturing efficiency.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of oil cylinder with active connection, and when can ensure assembling, central position can not produce skew, makes joint produce more uniform strength, extends product working life.
The utility model is solve the problems of the technologies described above the technological scheme adopted to be to provide a kind of oil cylinder with active connection, comprise oil cylinder body and clevis, piston rod is provided with in described oil cylinder body, wherein, described piston rod and clevis are threaded connection bar and are connected, the joint that described piston rod and clevis are oppositely arranged is hollow structure and is formed with internal thread, described whorl brace rod is put in the hollow structure of joint and is connected by screw-thread fit, described upper cover of piston rod is provided with the first aluminium cover and the second aluminium cover, y-type seal ring is provided with between described first aluminium cover and the second aluminium cover, described second aluminium overlaps and be provided with dust ring between the joint on piston rod.
The above-mentioned oil cylinder with active connection, wherein, described first aluminium cover is roughly the same with the shape size of the second aluminium cover.
The above-mentioned oil cylinder with active connection, wherein, the internal thread in the joint that described piston rod and clevis are oppositely arranged is formed by drilling and tapping.
The utility model contrast prior art has following beneficial effect: the oil cylinder of what the utility model provided have active connection, oil cylinder body and clevis are threaded connection bar be connected, thus central position can not produce skew when can ensure assembling, make joint produce more uniform strength, extend product working life.
Accompanying drawing explanation
Fig. 1 is the cylinder structure schematic diagram of existing fixing welded connections;
Fig. 2 is the structure for amplifying schematic diagram at A place in Fig. 1;
Fig. 3 is the oil cylinder cross-sectional view that the utility model has active connection;
Fig. 4 is the structure for amplifying schematic diagram at B place in Fig. 3.
In figure:
1 oil cylinder body 2 clevis 3 whorl brace rod
4 piston rod 5 first aluminium overlap 6 y-type seal rings
7 second aluminium overlap 8 dust rings
Embodiment
Below in conjunction with drawings and Examples, the utility model will be further described.
Fig. 3 is the oil cylinder cross-sectional view that the utility model has active connection; Fig. 4 is the structure for amplifying schematic diagram at B place in Fig. 3.
Refer to Fig. 3 and Fig. 4, the oil cylinder of what the utility model provided have active connection comprises oil cylinder body 1 and clevis 2, piston rod 4 is provided with in described oil cylinder body 1, wherein, described piston rod 4 and clevis 2 are threaded connection bar 3 and are connected, the joint that described piston rod 4 and clevis 2 are oppositely arranged is hollow structure and is formed with internal thread, described whorl brace rod 3 is put in the hollow structure of joint and is connected by screw-thread fit, described piston rod 4 is arranged with the first aluminium cover 5 and the second aluminium cover 7, y-type seal ring 6 is provided with between described first aluminium cover 5 and the second aluminium cover 7, described second aluminium overlaps between the joint on 7 and piston rod 4 and is provided with dust ring 8.
The oil cylinder of what the utility model provided have active connection, wherein, internal thread in the joint that described piston rod 4 and clevis 2 are oppositely arranged is formed by drilling and tapping, described whorl brace rod 3 is put in the hollow structure of joint and is connected by screw-thread fit, fix through press compacting riveted again, thus central position can not produce skew when can ensure assembling, make joint produce more uniform strength, extend product working life.Described first aluminium cover 5 and the second aluminium cover 7 are for playing buffer function protection piston rod 4, and described first aluminium cover 5 is roughly the same with the shape size of the second aluminium cover 7, to protect piston rod better; After y-type seal ring 6 can ensure welding to change into and be threaded, sealing effect is unaffected, and dust ring 8 prevents dust from entering affects sealing effect.
The oil cylinder of what the utility model provided have active connection, wherein, the bottom internal thread of described clevis 2 is formed by drilling and tapping.Clevis 2 becomes drilling and tapping from original bottom surface atresia, is conveniently connected with oil cylinder body 1, increases the practicability of product.
Although the utility model discloses as above with preferred embodiment; so itself and be not used to limit the utility model; any those skilled in the art; not departing from spirit and scope of the present utility model; when doing a little amendment and perfect, therefore protection domain of the present utility model is when being as the criterion of defining with claims.
Claims (3)
1. one kind has the oil cylinder of active connection, comprise oil cylinder body (1) and clevis (2), piston rod (4) is provided with in described oil cylinder body (1), it is characterized in that, described piston rod (4) and clevis (2) are threaded connection bar (3) and are connected, the joint that described piston rod (4) and clevis (2) are oppositely arranged is hollow structure and is formed with internal thread, described whorl brace rod (3) is put in the hollow structure of joint and is connected by screw-thread fit, described piston rod (4) is arranged with the first aluminium cover (5) and the second aluminium cover (7), y-type seal ring (6) is provided with between described first aluminium cover (5) and the second aluminium cover (7), dust ring (8) is provided with between joint on described second aluminium cover (7) and piston rod (4).
2. have the oil cylinder of active connection as claimed in claim 1, it is characterized in that, described first aluminium cover (5) is roughly the same with the shape size of the second aluminium cover (7).
3. have the oil cylinder of active connection as claimed in claim 1, it is characterized in that, the internal thread in the joint that described piston rod (4) and clevis (2) are oppositely arranged is formed by drilling and tapping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420525174.5U CN204186673U (en) | 2014-09-12 | 2014-09-12 | A kind of oil cylinder with active connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420525174.5U CN204186673U (en) | 2014-09-12 | 2014-09-12 | A kind of oil cylinder with active connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204186673U true CN204186673U (en) | 2015-03-04 |
Family
ID=52618682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420525174.5U Active CN204186673U (en) | 2014-09-12 | 2014-09-12 | A kind of oil cylinder with active connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204186673U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221519A (en) * | 2015-11-17 | 2016-01-06 | 湖北双羽机械科技有限公司 | A kind of adjustable agricultural machinery and implement dedicated hydraulic cylinder |
| CN105284208A (en) * | 2015-11-17 | 2016-02-03 | 湖北双羽机械科技有限公司 | Rotary cultivation device with automatic balancing function |
-
2014
- 2014-09-12 CN CN201420525174.5U patent/CN204186673U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221519A (en) * | 2015-11-17 | 2016-01-06 | 湖北双羽机械科技有限公司 | A kind of adjustable agricultural machinery and implement dedicated hydraulic cylinder |
| CN105284208A (en) * | 2015-11-17 | 2016-02-03 | 湖北双羽机械科技有限公司 | Rotary cultivation device with automatic balancing function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |