CN210034019U - Take mechanical locking device's aviation hydraulic cylinder structure - Google Patents
Take mechanical locking device's aviation hydraulic cylinder structure Download PDFInfo
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- CN210034019U CN210034019U CN201920642921.6U CN201920642921U CN210034019U CN 210034019 U CN210034019 U CN 210034019U CN 201920642921 U CN201920642921 U CN 201920642921U CN 210034019 U CN210034019 U CN 210034019U
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- cylinder
- pawl
- piston rod
- locking device
- mechanical locking
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Abstract
The utility model provides a take mechanical locking device's aviation hydraulic cylinder structure, the bottom of cylinder is packaged with the cylinder bottom end cap through the cylinder bottom, and the inside of cylinder is provided with the piston rod, and the piston is installed to the end of piston rod, is fixed with lock nut at the top of cylinder, is fixed with the cylinder cap at lock nut's top, installs the hydro-cylinder mechanical lock subassembly that is used for locking the piston rod on last cylinder cap, hydro-cylinder mechanical lock subassembly includes the shell body, and the inside of shell body is supported through thrust ball bearing and is installed and piston rod matched with screw, is provided with the ratchet in the outside of screw, and the ratchet cooperatees with the pawl, and the pawl articulates on the lug on the shell body lateral wall through articulated bolt, the top of screw is passed. The oil cylinder structure adopts a purely mechanical locking device, and the piston rod can be mechanically locked when an oil pipe suddenly bursts or the bottom of the oil cylinder suddenly drops.
Description
Technical Field
The utility model relates to an aviation hydraulic cylinder equipment field, especially a take mechanical locking device's aviation hydraulic cylinder structure.
Background
The hydraulic oil cylinder is mainly used as a jacking power device of a lifting platform, the traditional anti-falling mode of the lifting platform is mainly characterized in that an explosion-proof valve is arranged at an oil port of the hydraulic oil cylinder, when an oil pipe bursts suddenly, the explosion-proof valve acts to cut off and close an oil return path, so that the oil return path is sealed in a cylinder barrel of the hydraulic oil cylinder, or the oil path is throttled to reduce the oil return flow to prevent the platform from falling suddenly. But if the hydraulic oil cylinder has faults such as sudden falling of the cylinder bottom, the function of preventing sudden falling cannot be achieved.
SUMMERY OF THE UTILITY MODEL
For solving above technical problem, the utility model provides a take mechanical locking device's aviation hydraulic cylinder structure, this cylinder structure adopt pure mechanical type locking device, and homoenergetic locks piston rod machinery when oil pipe bursts suddenly or the hydro-cylinder bottom of the jar drops suddenly appearing, avoids the platform to fall suddenly and causes the incident.
In order to realize the technical characteristics, the purpose of the utility model is realized as follows: the utility model provides a take mechanical locking device's aviation hydraulic cylinder structure, it includes the cylinder, the bottom of cylinder is packaged with the cylinder bottom end cap through the cylinder bottom, and the inside of cylinder is provided with the piston rod, and the piston is installed to the end of piston rod, is fixed with lock nut at the top of cylinder, is fixed with the cylinder cap at lock nut's top, installs the hydro-cylinder mechanical lock subassembly that is used for locking the piston rod on last cylinder cap, hydro-cylinder mechanical lock subassembly includes the shell body, and the inside of shell body is supported through thrust ball bearing and is installed the screw with piston rod matched with, is provided with the ratchet in the outside of screw, and the ratchet cooperatees with the pawl, and the pawl articulates on the lug on the shell body lateral wall through articulated bolt.
And a plurality of first sealing rings are arranged outside the cylinder bottom plug.
And a plurality of second sealing rings are arranged outside the piston, and a guide ring is arranged between the two second sealing rings.
An oil duct is processed in the center of the piston rod and communicated with an oil inlet joint arranged at the end of the piston rod, and the oil inlet joint is connected with a hydraulic pump station.
And a pawl matching groove matched with the pawl is processed on the side wall of the outer shell.
The tail of the pawl is hinged with a lever type unlocking mechanism used for driving the pawl to rotate for unlocking, the lever type unlocking mechanism comprises a hinged joint hinged to the tail of the pawl, a pull rod is connected to the hinged joint, the other end of the pull rod penetrates through a notch in a limiting plate, and the limiting plate is fixed on the side wall of the shell.
And a locking torsion spring is arranged on the hinged bolt and between the outer shell and the pawl.
The utility model discloses there is following beneficial effect:
1. through adopting the hydraulic cylinder structure of above-mentioned structure, it has the screw that is used for the auto-lock, and in the piston rod lift process, external screw thread and the internal thread of screw on through the piston rod cooperate, and then drive the screw and rotate, and the ratchet on the screw will cooperate with the pawl, guarantees that it can only rotate along a direction, and then the effectual piston rod antiport that has prevented, and then played the purpose of auto-lock. And further the safety of the hydraulic oil cylinder is ensured.
2. The screw material chooses for use aluminium bronze, can effectively prevent its corrosion and influence its rotation, respectively installs a one-way thrust ball bearing at the contact surface at screw upper and lower both ends for reduce the rotatory frictional force of screw, the nimble rotation of the screw of being convenient for.
3. The device has the advantages of simple operation, convenient use and maintenance, stable work, good safety, high reliability and the like.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a front view and a partial sectional view of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is an exploded view of the present invention.
Fig. 4 is a view from a-a in fig. 1 according to the present invention.
Fig. 5 is a first perspective three-dimensional view of the present invention.
Fig. 6 is a second perspective three-dimensional view of the present invention.
Fig. 7 is a three-dimensional view of a third viewing angle after the outer casing is removed.
In the figure: the oil cylinder comprises a cylinder barrel 1, a cylinder bottom plug 2, a first sealing ring 3, an oil cylinder bottom cover 4, an upper cylinder cover 5, a copper locking sleeve 6, a locking nut 7, a piston 8, a piston rod 9, a second sealing ring 10, a guide ring 11, an oil duct 12, an oil inlet joint 13, an outer shell 14, a limiting plate 15, a pull rod 16, a hinge joint 17, a pawl 18, a locking torsion spring 19, an ear seat 20, a hinge bolt 21, a gland 22, a pawl matching groove 23, a nut 24 and a thrust ball bearing 25.
Detailed Description
The following describes embodiments of the present invention with reference to the accompanying drawings.
Referring to fig. 1-7, an aviation hydraulic oil cylinder structure with a mechanical locking device comprises a cylinder barrel 1, the bottom of the cylinder barrel 1 is packaged with a cylinder bottom plug 2 through a cylinder bottom cover 4, the inside of the cylinder barrel 1 is provided with a piston rod 9, the end of the piston rod 9 is provided with a piston 8, a lock nut 7 is fixed on the top of the cylinder barrel 1, an upper cylinder cover 5 is fixed on the top of the lock nut 7, an oil cylinder mechanical lock assembly for locking the piston rod 9 is arranged on the upper cylinder cover 5, the oil cylinder mechanical lock assembly comprises an outer shell 14, a screw 24 matched with the piston rod 9 is supported and arranged in the outer shell 14 through a thrust ball bearing 25, a ratchet 26 is arranged outside the screw 24, the ratchet 26 cooperates with a pawl 18, the pawl 18 is hinged to an ear seat 20 on the side wall of the outer casing 14 by a hinge bolt 21, and the top of the screw 24 is enclosed inside the outer casing 14 by a gland 22. Through adopting the hydraulic cylinder structure of above-mentioned structure, it has the screw 24 that is used for the auto-lock, in the piston rod 9 in-process that rises, cooperatees through the external screw thread on the piston rod 9 and the internal thread of screw 24, and then drives screw 24 and rotate, and ratchet 26 on the screw 24 will cooperate with pawl 18, guarantees that it can only rotate along a direction, and then the effectual piston rod 9 antiport that has prevented, and then has played the purpose of auto-lock, and then has guaranteed hydraulic cylinder's security.
Furthermore, a plurality of first sealing rings 3 are arranged outside the cylinder bottom plug 2. The bottom of the cylinder tube 1 can be sealed by using the first seal ring 3 described above.
Further, a plurality of second sealing rings 10 are arranged outside the piston 8, and a guide ring 11 is arranged between the two second sealing rings 10. The piston 8 can be sealed by the second seal ring 10.
Further, an oil duct 12 is processed in the center of the piston rod 9, the oil duct 12 is communicated with an oil inlet joint 13 arranged at the end of the piston rod 9, and the oil inlet joint 13 is connected with a hydraulic pump station.
Further, a pawl engagement groove 23 for engaging with the pawl 18 is formed in a side wall of the outer housing 14. The pawl engagement groove 23 constructed as described above ensures that the pawl 18 passes through, thereby ensuring that the pawl 18 engages the ratchet 26.
Further, the tail of the pawl 18 is hinged with a lever-type unlocking mechanism for driving the pawl to rotate for unlocking, the lever-type unlocking mechanism comprises a hinge head 17 hinged to the tail of the pawl 18, a pull rod 16 is connected to the hinge head 17, the other end of the pull rod 16 penetrates through a notch in a limiting plate 15, and the limiting plate 15 is fixed on the side wall of the outer shell 14. Through the lever type unlocking mechanism with the structure, when the hydraulic cylinder needs to descend, the pull rod 16 is pulled, the hinge joint 17 is driven through the pull rod 16, the pawl 18 is pulled to rotate around the hinge bolt 21 through the hinge joint 17, the pawl 18 is separated from the ratchet wheel 26, and the purpose of contact self-locking is achieved.
Further, a locking torsion spring 19 is provided on the hinge bolt 21 between the outer housing 14 and the pawl 18. The pawl 18 can be always matched with the ratchet wheel through the locking torsion spring 19, and the self-locking purpose of the ratchet wheel is further ensured.
Furthermore, the screw material is made of aluminum bronze, so that the screw can be effectively prevented from being corroded to influence the rotation of the screw, and the contact surfaces at the upper end and the lower end of the screw are respectively provided with a one-way thrust ball bearing for reducing the friction force of the rotation of the screw and facilitating the flexible rotation of the screw.
The utility model discloses a use as follows:
through the aviation hydraulic cylinder structure of above-mentioned structure, in the course of the work, when the piston rod normally lifts the in-process, will drive the screw 24 at its top to rotate through piston rod 9, through the cooperation between ratchet 26 and the pawl 18 on the screw 24, guaranteed that screw 24 can only rotate along a direction, can not the antiport, and then make screw 24 cooperate with piston rod 9 all the time and played the purpose of auto-lock.
Claims (7)
1. The utility model provides a take mechanical locking device's aviation hydraulic cylinder structure which characterized in that: the cylinder comprises a cylinder barrel (1), a cylinder bottom plug (2) is packaged at the bottom of the cylinder barrel (1) through a cylinder bottom cover (4), a piston rod (9) is arranged inside the cylinder barrel (1), a piston (8) is installed at the end of the piston rod (9), a locking nut (7) is fixed at the top of the cylinder barrel (1), an upper cylinder cover (5) is fixed at the top of the locking nut (7), a cylinder mechanical lock assembly used for locking the piston rod (9) is installed on the upper cylinder cover (5), the cylinder mechanical lock assembly comprises an outer shell (14), a nut (24) matched with the piston rod (9) is supported and installed inside the outer shell (14) through a thrust ball bearing (25), a ratchet wheel (26) is arranged outside the nut (24), the ratchet wheel (26) is matched with a pawl (18), and the pawl (18) is hinged on an ear seat (20) on the side wall of the outer shell (14) through a hinged, the top of the nut (24) is sealed inside the outer shell (14) through a gland (22).
2. The aerial hydraulic oil cylinder structure with the mechanical locking device as claimed in claim 1, characterized in that: the outer part of the cylinder bottom plug (2) is provided with a plurality of first sealing rings (3).
3. The aerial hydraulic oil cylinder structure with the mechanical locking device as claimed in claim 1, characterized in that: a plurality of second sealing rings (10) are arranged outside the piston (8), and a guide ring (11) is arranged between the two second sealing rings (10).
4. The aerial hydraulic oil cylinder structure with the mechanical locking device as claimed in claim 1, characterized in that: an oil duct (12) is machined in the center of the piston rod (9), the oil duct (12) is communicated with an oil inlet joint (13) arranged at the end of the piston rod (9), and the oil inlet joint (13) is connected with a hydraulic pump station.
5. The aerial hydraulic oil cylinder structure with the mechanical locking device as claimed in claim 1, characterized in that: and a pawl matching groove (23) matched with the pawl (18) is processed on the side wall of the outer shell (14).
6. The aerial hydraulic oil cylinder structure with the mechanical locking device as claimed in claim 1, characterized in that: the tail of the pawl (18) is hinged with a lever type unlocking mechanism used for driving the pawl to rotate for unlocking, the lever type unlocking mechanism comprises a hinge head (17) hinged to the tail of the pawl (18), a pull rod (16) is connected to the hinge head (17), the other end of the pull rod (16) penetrates through a notch in the limiting plate (15), and the limiting plate (15) is fixed on the side wall of the outer shell (14).
7. The aerial hydraulic oil cylinder structure with the mechanical locking device as claimed in claim 1, characterized in that: and a locking torsion spring (19) is arranged on the hinge bolt (21) and between the outer shell (14) and the pawl (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920642921.6U CN210034019U (en) | 2019-05-07 | 2019-05-07 | Take mechanical locking device's aviation hydraulic cylinder structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920642921.6U CN210034019U (en) | 2019-05-07 | 2019-05-07 | Take mechanical locking device's aviation hydraulic cylinder structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210034019U true CN210034019U (en) | 2020-02-07 |
Family
ID=69363770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920642921.6U Active CN210034019U (en) | 2019-05-07 | 2019-05-07 | Take mechanical locking device's aviation hydraulic cylinder structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210034019U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115676578A (en) * | 2022-10-18 | 2023-02-03 | 上海锡华机械工程有限公司 | Fan blade centre gripping lifting device |
-
2019
- 2019-05-07 CN CN201920642921.6U patent/CN210034019U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115676578A (en) * | 2022-10-18 | 2023-02-03 | 上海锡华机械工程有限公司 | Fan blade centre gripping lifting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200702 Address after: No.1 Lingyun Road, Yuyang office, Dangyang city, Yichang City, Hubei Province Patentee after: Lingyun (Yichang) aviation equipment Engineering Co., Ltd Address before: 444100 98 Yuen Nan Road, Yuyang office, Dangyang city, Yichang, Hubei Patentee before: NO.5710 FACTORY OF PLA |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200828 Address after: No.1 Lingyun Road, Yuyang office, Dangyang city, Yichang City, Hubei Province Co-patentee after: LINGYUN SCIENCE & TECHNOLOGY GROUP Co.,Ltd. Patentee after: Lingyun (Yichang) aviation equipment Engineering Co., Ltd Address before: No.1 Lingyun Road, Yuyang office, Dangyang city, Yichang City, Hubei Province Patentee before: Lingyun (Yichang) aviation equipment Engineering Co., Ltd |