CN216618096U - Anti-loosening hydraulic oil cylinder - Google Patents
Anti-loosening hydraulic oil cylinder Download PDFInfo
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- CN216618096U CN216618096U CN202123434565.5U CN202123434565U CN216618096U CN 216618096 U CN216618096 U CN 216618096U CN 202123434565 U CN202123434565 U CN 202123434565U CN 216618096 U CN216618096 U CN 216618096U
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Abstract
The utility model relates to the technical field of hydraulic oil cylinders and discloses an anti-loosening hydraulic oil cylinder which comprises a cylinder body, a cylinder bottom, a cylinder cover, a piston rod, a sliding sleeve and a piston, wherein the cylinder bottom and the cylinder cover are respectively connected to the left end and the right end of the cylinder body, the sliding sleeve is arranged between the cylinder body and the cylinder cover, one end of the cylinder body is provided with a threaded hole, a first through hole is formed in the cylinder bottom, a threaded rod is arranged inside the first through hole, the threaded rod penetrates through the first through hole and is in threaded connection with the threaded hole, a first sealing ring is arranged between the cylinder body and the cylinder bottom, the outer wall of the left side of the piston rod is provided with a first threaded groove, and the right side of the first threaded groove is provided with a first flat key groove. The utility model fixes the relative position of the piston and the piston rod through the connection of the flat key, and solves the problem that the locking nut connected with the piston and the piston rod is easy to loosen under the working condition that the cylinder barrel and the piston rod rotate relatively.
Description
Technical Field
The utility model relates to the technical field of hydraulic oil cylinders, in particular to an anti-loosening hydraulic oil cylinder.
Background
The hydraulic oil cylinder is a hydraulic actuating element which converts hydraulic energy into mechanical energy and makes linear reciprocating motion. The reciprocating motion device has simple structure and reliable work, can avoid a speed reducer when the reciprocating motion is realized, has no transmission clearance, and moves stably, thereby being widely applied to hydraulic systems of various machines. In some hydraulic processing machinery, a hydraulic oil cylinder is used as a main executing element, an existing piston is connected with a piston rod through a locking nut, and the hydraulic oil cylinder is easy to fall off under the working condition that the cylinder barrel and the piston rod rotate relatively, so that the use is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an anti-loosening hydraulic oil cylinder, which achieves the aim of fixing the relative position of a piston and a piston rod and improving the stability.
In order to achieve the purpose, the utility model provides the following technical scheme: a locking hydraulic oil cylinder comprises a cylinder body, a cylinder bottom, a cylinder cover, a piston rod, a sliding sleeve and a piston, wherein the cylinder bottom and the cylinder cover are respectively connected with the left end and the right end of the cylinder body, the sliding sleeve is arranged between the cylinder body and the cylinder cover, one end of the cylinder body is provided with a threaded hole, a first through hole is formed in the cylinder bottom, a threaded rod is arranged inside the first through hole, the threaded rod penetrates through the first through hole and is in threaded connection with the threaded hole, a first sealing ring is arranged between the cylinder body and the cylinder bottom, the left outer wall of the piston rod is provided with a first thread groove, the right side of the first thread groove is provided with a first flat key groove, a flat key is arranged inside the first flat key groove, a second through hole is formed in the piston, the inner wall of the second through hole is provided with a second flat key groove, and the left end of the piston rod penetrates through the second through hole and extends towards the left side, the extension end threaded connection of piston rod has the thread bush, second through-hole and third through-hole have been seted up on sliding sleeve and the cylinder cap, the piston rod runs through second through-hole and third through-hole and outside extension in proper order right, first circular recess has been seted up to one side of cylinder cap, the second thread groove is seted up to the inner wall of first circular recess, the extension end cover of piston rod is equipped with the internal thread cover, internal thread cover threaded connection is in on the second thread groove in the first circular recess.
Preferably, the top of the cylinder bottom is provided with a first oil port, and the bottom of the cylinder bottom is provided with an exhaust valve.
Preferably, a second circular groove is formed in the right side of the cylinder bottom, and the diameter of the second circular groove is larger than the maximum width of the threaded sleeve.
Preferably, the number of the first flat key groove, the second flat key groove and the flat key is two, the two first flat key grooves and the two second flat key grooves are symmetrically arranged on two sides of the piston rod, and the length and the width of the two first flat key grooves and the length and the width of the two flat key grooves are the same as those of the two flat keys. Through the flat key connection that sets up, fixed the relative position of piston and piston rod, solved the pneumatic cylinder under the operating mode of cylinder body and piston rod relative rotation, the threaded sleeve pine that piston and piston rod are connected takes off the problem.
Preferably, the outer wall of the piston is provided with three annular grooves, and the number of the annular grooves is three, and the annular grooves are internally provided with second sealing rings.
Preferably, an annular bulge is formed in one side of the sliding sleeve, a third sealing ring is arranged between the outer wall of the annular bulge and the inner wall of the cylinder body, a second oil port is formed in the top of the sliding sleeve, a third thread groove is formed in the sliding sleeve, a fourth through hole is formed in the cylinder cover, and the cylinder cover penetrates through the fourth through hole through a threaded rod and is in threaded connection with the third thread groove.
The utility model provides an anti-loosening hydraulic oil cylinder. The method has the following beneficial effects:
(1) the utility model fixes the relative position of the piston and the piston rod through the connection of the flat key, and solves the problem that the locking nut connected with the piston rod is loosened under the working condition that the cylinder barrel and the piston rod rotate relatively.
(2) According to the hydraulic cylinder, the third sealing ring is arranged, so that the sealing effect of the hydraulic cylinder is improved.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is an exploded view of the exterior of the cylinder of the present invention;
fig. 3 is an exploded view of the interior of the cylinder of the present invention.
In the figure: 1. a cylinder body; 2. a cylinder bottom; 3. a cylinder cover; 4. a piston rod; 5. a sliding sleeve; 6. a piston; 7. a threaded sleeve; 8. an exhaust valve; 9. a threaded rod; 10. a first seal ring; 11. a second seal ring; 12. a first oil port; 13. a second oil port; 14. a third seal ring; 15. an internal thread sleeve; 16. a flat bond.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-3, the present invention provides a technical solution: a locking hydraulic oil cylinder comprises a cylinder body 1, a cylinder bottom 2, a cylinder cover 3, a piston rod 4, a sliding sleeve 5 and a piston 6, wherein the cylinder bottom 2 and the cylinder cover 3 are respectively connected with the left end and the right end of the cylinder body 1, the sliding sleeve 5 is arranged between the cylinder body 1 and the cylinder cover 3, one end of the cylinder body 1 is provided with a threaded hole, the cylinder bottom 2 is provided with a first through hole, a threaded rod 9 is arranged in the first through hole, the threaded rod 9 penetrates through the first through hole and is in threaded connection with the threaded hole, a first sealing ring 10 is arranged between the cylinder body 1 and the cylinder bottom 2, the left outer wall of the piston rod 4 is provided with a first threaded groove, the right side of the first threaded groove is provided with a first flat key groove, the inside of the first flat key groove is provided with a flat key 16, a second through hole is arranged in the piston 6, the inner wall of the second through hole is provided with a second flat key groove, the left end of the piston rod 4 penetrates through the second through hole and extends towards the left side, the extending end of the piston rod 4 is in threaded connection with a threaded sleeve 7, the sliding sleeve 5 and the cylinder cover 3 are provided with a second through hole and a third through hole, the piston rod 4 sequentially penetrates through the second through hole and the third through hole rightwards and extends outwards, one side of the cylinder cover 3 is provided with a first circular groove, the inner wall of the first circular groove is provided with a second thread groove, the extending end sleeve of the piston rod 4 is provided with an internal thread sleeve 15, the internal thread sleeve 15 is in threaded connection with the second thread groove in the first circular groove, the top of the cylinder bottom 2 is provided with a first oil port 12, the bottom of the cylinder bottom 2 is provided with an exhaust valve 8, the right side of the cylinder bottom 2 is provided with a second circular groove, the diameter of the second circular groove is larger than the maximum width of the thread sleeve 7, the number of the first flat key grooves, the number of the second flat key grooves and the flat keys 16 is two, the two first flat key grooves and the second flat key grooves are symmetrically arranged at two sides of the piston rod 4, the length and the width of the two first flat key grooves and the second flat key grooves are the same as the length and width of the two flat keys 16, through the flat key 16 connection that sets up, the relative position of piston 6 and piston rod 4 has been fixed, the pneumatic cylinder has been solved under the operating mode of cylinder body 1 and piston rod 4 relative rotation, 7 pine of thread bush that piston 6 and piston rod 4 are connected takes off the problem, annular groove has been seted up to the outer wall of piston 6, annular groove's quantity is three, be provided with second sealing washer 11 in the three annular groove, annular arch has been seted up to one side of sliding sleeve 5, be provided with third sealing washer 14 between annular arch's outer wall and the inner wall of cylinder body 1, the top of sliding sleeve 5 is provided with second hydraulic fluid port 13, the third thread groove has been seted up on sliding sleeve 5, the fourth through-hole has been seted up on the cylinder cap 3, cylinder cap 3 runs through fourth through-hole and threaded connection in the third thread groove through threaded rod 9.
When the hydraulic cylinder is used, the piston 6 and the piston rod 4 are fixed in relative positions through the connection of the flat keys 16, the problem that the thread sleeve 7 connected with the piston 6 and the piston rod 4 is loosened under the working condition that the cylinder body 1 and the piston rod 4 rotate relatively is solved, and the sealing effect of the hydraulic cylinder is improved through the third sealing ring 14.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a locking dynamic formula hydraulic cylinder, includes cylinder body (1), cylinder bottom (2), cylinder cap (3), piston rod (4), sliding sleeve (5), piston (6), its characterized in that: the cylinder bottom (2) and the cylinder cover (3) are respectively connected to the left end and the right end of the cylinder body (1), the sliding sleeve (5) is arranged between the cylinder body (1) and the cylinder cover (3), one end of the cylinder body (1) is provided with a threaded hole, a first through hole is formed in the cylinder bottom (2), a threaded rod (9) is arranged in the first through hole, the threaded rod (9) penetrates through the first through hole and is in threaded connection with the threaded hole, a first sealing ring (10) is arranged between the cylinder body (1) and the cylinder bottom (2), a first thread groove is formed in the outer wall of the left side of the piston rod (4), a first flat key groove is formed in the right side of the first thread groove, a flat key (16) is arranged in the first flat key groove, a second through hole is formed in the piston (6), a second flat key groove is formed in the inner wall of the second through hole, the left end of the piston rod (4) penetrates through the second through hole and extends towards the left side, the extension end threaded connection of piston rod (4) has thread bush (7), second through-hole and third through-hole have been seted up on sliding sleeve (5) and cylinder cap (3), piston rod (4) runs through second through-hole and third through-hole and outside extension in proper order right side, first circular recess has been seted up to one side of cylinder cap (3), the second thread groove is seted up to the inner wall of first circular recess, the extension end cover of piston rod (4) is equipped with interior thread bush (15), interior thread bush (15) threaded connection is in on the second thread groove in the first circular recess.
2. A locking hydraulic ram according to claim 1 wherein: the top of the cylinder bottom (2) is provided with a first oil port (12), and the bottom of the cylinder bottom (2) is provided with an exhaust valve (8).
3. A locking hydraulic ram according to claim 1 wherein: the right side of the cylinder bottom (2) is provided with a second circular groove, and the diameter of the second circular groove is larger than the maximum width of the threaded sleeve (7).
4. A locking hydraulic ram according to claim 1 wherein: the piston rod is characterized in that the number of the first flat key groove, the number of the second flat key groove and the number of the flat keys (16) are two, the two first flat key grooves and the two second flat key grooves are symmetrically arranged on two sides of the piston rod (4), and the length and the width of the two first flat key grooves and the width of the two second flat key grooves are the same as those of the two flat keys (16).
5. A locking hydraulic ram according to claim 1 wherein: annular grooves are formed in the outer wall of the piston (6), the number of the annular grooves is three, and second sealing rings (11) are arranged in the three annular grooves.
6. A locking hydraulic ram according to claim 1 wherein: the utility model discloses a hydraulic cylinder, including sliding sleeve (5), be provided with third sealing washer (14) between the inner wall of annular bellied outer wall and cylinder body (1), the top of sliding sleeve (5) is provided with second hydraulic fluid port (13), the third thread groove has been seted up on sliding sleeve (5), the fourth through-hole has been seted up on cylinder cap (3), cylinder cap (3) run through fourth through-hole and threaded connection in the third thread groove through threaded rod (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123434565.5U CN216618096U (en) | 2021-12-31 | 2021-12-31 | Anti-loosening hydraulic oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123434565.5U CN216618096U (en) | 2021-12-31 | 2021-12-31 | Anti-loosening hydraulic oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216618096U true CN216618096U (en) | 2022-05-27 |
Family
ID=81686511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123434565.5U Active CN216618096U (en) | 2021-12-31 | 2021-12-31 | Anti-loosening hydraulic oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216618096U (en) |
-
2021
- 2021-12-31 CN CN202123434565.5U patent/CN216618096U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 213000 Cao Jia village, Xue Yan Town, Wujin District, Changzhou, Jiangsu Patentee after: Jiangsu Yizhidi Hydraulic Technology Co.,Ltd. Address before: 213000 Cao Jia village, Xue Yan Town, Wujin District, Changzhou, Jiangsu Patentee before: Jiangsu jingshimai Hydraulic Technology Co.,Ltd. |