CN210565449U - Press hydro-cylinder is prevented changeing in inside - Google Patents
Press hydro-cylinder is prevented changeing in inside Download PDFInfo
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- CN210565449U CN210565449U CN201921302171.4U CN201921302171U CN210565449U CN 210565449 U CN210565449 U CN 210565449U CN 201921302171 U CN201921302171 U CN 201921302171U CN 210565449 U CN210565449 U CN 210565449U
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Abstract
The utility model relates to an internal anti-rotation press oil cylinder, which comprises a cylinder body and a cylinder bottom, wherein a first cavity is arranged in the cylinder body; be provided with mobilizable piston rod in the first cavity, its characterized in that: a guide rod is vertically arranged at the inner end of the cylinder bottom; the piston rod is provided with a second cavity; a guide block is arranged on the inner wall of the second cavity; the guide block is matched with the guide rod to limit the rotation of the piston rod. The utility model discloses an inside prevents changeing press hydro-cylinder has good prevent changeing the function, prevents changeing the good reliability, and anti-rotating device simple structure has effectively improved the stability of hydraulic cylinder work.
Description
Technical Field
The utility model belongs to the technical field of the hydraulic cylinder technique and specifically relates to a press hydro-cylinder is prevented changeing by inside.
Background
The working rod of many machines is connected with the chassis of the whole machine through a hydraulic oil cylinder, and the rising and falling of the working rod are realized through the telescopic change of the hydraulic oil cylinder. In the working process of the whole machine, the position and the angle of the working rod can be changed when the working is started and the working position is changed every time, and the rising and falling of the working rod is an indispensable working step in the working process of the whole machine. However, the cylinder and piston of the hydraulic cylinder in the prior art are cylindrical, so that the hydraulic cylinder has one degree of freedom of rotation in the changing process. In the working process of the whole machine, the rotation of the cylinder barrel of the oil cylinder not only can affect the working stability of the hydraulic oil cylinder, but also can affect the sealing performance of a hydraulic oil cylinder system, thereby greatly shortening the service life of the hydraulic oil cylinder.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to overcome the problem that the working stability of a hydraulic oil cylinder is influenced due to the rotation of an oil cylinder barrel in the prior art, the internal anti-rotation press oil cylinder is provided.
The utility model provides a technical scheme that its technical problem adopted is: an internal anti-rotation press oil cylinder comprises a cylinder body and a cylinder bottom, wherein a first cavity is arranged in the cylinder body; a movable piston rod is arranged in the first cavity; a guide rod is vertically arranged at the inner end of the cylinder bottom; the piston rod is provided with a second cavity; a guide block is arranged on the inner wall of the second cavity; the guide block is matched with the guide rod to limit the rotation of the piston rod.
Further, in order to better prevent the guide rod from rotating, the section of the guide rod is square; the inner hole of the guide block is square matched with the guide rod.
Furthermore, in order to improve the reliability and the stability of the anti-rotation device of the hydraulic oil cylinder, the guide rod is coaxial with the piston rod.
The utility model discloses a cooperation through guide block and guide bar, the cross-section of its guide bar is square, and the hole of guide block is square with guide bar matched with, and the hole of guide block just in time can block like this to play and prevent piston pivoted effect. The principle of the internal anti-rotation press oil cylinder is that the inner hole of the guide block is clamped with the square part of the guide rod, so that the internal anti-rotation press oil cylinder has the function of preventing the piston from rotating, the position of the hydraulic oil cylinder can be ensured to be reliable, the structure is simple, and the processing is simple.
The utility model has the advantages that: the utility model discloses an inside prevents changeing press hydro-cylinder has good prevent changeing the function, prevents changeing the good reliability, and anti-rotating device simple structure has effectively improved the stability of hydraulic cylinder work.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a first chamber of the present invention;
fig. 3 is a second chamber of the present invention.
In the figure: 1-cylinder body, 2-cylinder bottom, 3-first cavity, 4-piston rod, 5-guide rod, 6-first cavity and 7-guide block
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1, an internal rotation-preventing press cylinder comprises a cylinder body 1 and a cylinder bottom 2, wherein the cylinder bottom 2 is fixedly installed at one end of the cylinder body 1, a first cavity 3 is arranged in the cylinder body 1, a movable piston rod 4 is arranged in the first cavity 3, a guide rod 5 is vertically arranged at the inner end of the cylinder bottom, a second cavity 6 is arranged on the piston rod 4, a guide block 7 is arranged on the inner wall of the second cavity 6, and the guide block 7 is matched with the guide rod 5 to limit the rotation of the piston rod.
In order to better prevent the guide rod 5 from rotating, the cross section of the guide rod 5 is square; the inner hole of the guide block 7 is square which is matched with the guide rod 5.
In order to improve the reliability and the stability of the anti-rotation device of the hydraulic oil cylinder, the guide rod 5 is coaxial with the piston rod 4.
The utility model discloses a cooperation through guide block 7 and guide bar 5, the cross-section of its guide bar 5 is square, and the hole of guide block 7 is square for with guide bar 5 matched with, and the hole of guide block 7 just in time can block like this to play and prevent 4 pivoted effects of piston rod. The principle of the internal anti-rotation press oil cylinder is that the inner hole of the guide block 7 is clamped with the square part of the guide rod 5, and the internal anti-rotation press oil cylinder has the function of preventing the piston rod 4 from rotating, so that the position of the hydraulic oil cylinder can be ensured to be reliable, the structure is simple, and the processing is simple.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (3)
1. An internal anti-rotation press oil cylinder comprises a cylinder body (1) and a cylinder bottom (2), wherein a first cavity (3) is arranged in the cylinder body (1); be provided with mobilizable piston rod (4) in first cavity (3), its characterized in that: the inner end of the cylinder bottom (2) is vertically provided with a guide rod (5);
the piston rod (4) is provided with a second cavity (6);
a guide block (7) is arranged on the inner wall of the second cavity (6);
the guide block (7) is matched with the guide rod (5) to limit the piston rod (4) to rotate.
2. The internal anti-rotation press cylinder according to claim 1, characterized in that: the section of the guide rod (5) is square; the inner hole of the guide block (7) is square and matched with the guide rod (5).
3. The internal anti-rotation press cylinder according to claim 1, characterized in that: the guide rod (5) is coaxial with the piston rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921302171.4U CN210565449U (en) | 2019-08-12 | 2019-08-12 | Press hydro-cylinder is prevented changeing in inside |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921302171.4U CN210565449U (en) | 2019-08-12 | 2019-08-12 | Press hydro-cylinder is prevented changeing in inside |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210565449U true CN210565449U (en) | 2020-05-19 |
Family
ID=70643191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921302171.4U Active CN210565449U (en) | 2019-08-12 | 2019-08-12 | Press hydro-cylinder is prevented changeing in inside |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210565449U (en) |
-
2019
- 2019-08-12 CN CN201921302171.4U patent/CN210565449U/en active Active
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