CN211550135U - Steel ball type mechanical locking oil cylinder - Google Patents
Steel ball type mechanical locking oil cylinder Download PDFInfo
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- CN211550135U CN211550135U CN201921820465.6U CN201921820465U CN211550135U CN 211550135 U CN211550135 U CN 211550135U CN 201921820465 U CN201921820465 U CN 201921820465U CN 211550135 U CN211550135 U CN 211550135U
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- cylinder
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- oil
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Abstract
The utility model discloses a steel ball formula's mechanical locking hydro-cylinder, including cylinder piston and plug device, piston device set up in the cylinder, the one end of cylinder is provided with the cylinder head, the cylinder is kept away from the one end of cylinder head is provided with the cylinder cap, the one end of cylinder head is provided with no pole chamber oiling mouth, the central authorities of cylinder head are provided with the oil pocket, piston device includes piston rod, steel ball, floating piston, spring and lock nut, the piston rod is kept away from the outer wall of lock nut's one end with be provided with the steel ball annular between the inner wall of cylinder. Therefore, pressure oil is injected into an oil cavity in the cylinder head from the oil injection port of the rodless cavity, when the pressure reaches a certain value, the piston device is pushed to move forwards, and when the piston device reaches a proper position, the floating piston is pushed to move by the pressure of the spring, so that the steel balls enter the steel ball ring grooves, and the oil cylinder locking is effectively realized.
Description
Technical Field
The utility model relates to a mechanical locking hydro-cylinder technical field specifically is steel ball formula's mechanical locking hydro-cylinder.
Background
The oil cylinder needs to be kept at a certain position for a certain time after being extended and lifted, and the oil cylinder can bear huge vertical pressure at the moment. In order to relieve vertical pressure, the existing method is to add a balance valve or a hydraulic lock on the oil cylinder for locking, but because hydraulic locking has leakage and pressure loss, the oil cylinder always has a certain slippage, so that the oil cylinder locking cannot be effectively realized.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a steel ball formula's mechanical locking hydro-cylinder pours into pressure oil into the oil pocket in the cylinder head from rodless chamber oil filler point into, when pressure reached a definite value, promotes the forward removal of piston device, and when piston device reachd suitable position, the pressure by the spring promoted floating piston and removed to make the steel ball get into the steel ball annular, thereby realize hydro-cylinder locking effectively.
The steel ball type mechanical locking oil cylinder comprises a cylinder barrel and a piston device;
the piston device is arranged in the cylinder barrel;
a cylinder head is arranged at one end of the cylinder barrel, and a cylinder cover is arranged at one end of the cylinder barrel, which is far away from the cylinder head;
one end of the cylinder head is provided with a rodless cavity oil injection port, and the center of the cylinder head is provided with an oil cavity;
the piston device comprises a piston rod, a steel ball, a floating piston, a spring and a locking nut;
the piston rod is arranged in the cylinder barrel, and one end of the piston rod is arranged at the locking nut;
the floating piston is arranged in the piston rod;
the spring is arranged between the piston rod and the floating piston;
the steel ball is arranged between the cylinder barrel and the piston rod;
and a steel ball ring groove is formed between the outer wall of one end of the piston rod, which is far away from the locking nut, and the inner wall of the cylinder barrel.
Optionally, the cylinder barrel is connected with the cylinder head through threads.
Optionally, the cylinder barrel is connected with the cylinder cover through a bolt.
Optionally, the piston rod is connected with the lock nut through a thread.
Optionally, the floating piston is provided therein with a first seal and a second seal, respectively, the second seal being proximal to the spring and the first seal being distal from the spring.
Optionally, one end of the cylinder barrel, which is close to the cylinder cover, is provided with a rod cavity oil injection port.
Optionally, the spring is clamped between the piston rod, the floating piston and the lock nut.
Optionally, the floating piston is clamped in the piston rod.
Compared with the prior art, the utility model, the beneficial effect who has does:
the utility model provides a steel ball formula's mechanical locking hydro-cylinder pours into pressure oil into the oil pocket in the cylinder head from rodless chamber oil filler point into, when pressure reached a definite value, promotes the forward removal of piston device, and when piston device reachd suitable position, the pressure by the spring promoted floating piston and removed to make the steel ball get into the steel ball annular, thereby realize hydro-cylinder locking effectively.
Drawings
In order to illustrate the technical solution of the present invention more clearly, the drawings that are needed in the present invention will be briefly described below, it being understood that the following drawings only show some embodiments of the present invention and therefore should not be considered as limiting the scope, and that for a person skilled in the art, other related drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a structural schematic diagram (sectional view) of the steel ball type mechanical locking cylinder of the present invention.
Fig. 2 is a structural schematic diagram (cross-sectional view after locking) of the steel ball type mechanical locking cylinder of the present invention.
In the figure:
1-a cylinder barrel;
2-a piston device;
21-piston rod, 22-floating piston, 221-first sealing element, 222-second sealing element, 23-steel ball, 24-spring and 25-locking nut;
3-cylinder end;
4-cylinder cover;
5-bolt;
6-steel ball ring groove;
7-a rodless cavity oil filling port;
8-oil injection port with rod cavity;
9-oil chamber.
Detailed Description
To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined below to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are only some embodiments of the present invention, not all embodiments.
May be arranged and designed in a variety of different configurations.
Therefore, the following detailed description of the present invention, which is provided in the accompanying drawings, is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention, and all other embodiments obtained by those skilled in the art without inventive work based on the embodiments of the present invention are within the scope of the invention as claimed.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the connection can be direct connection or indirect connection through an intermediate coal medium, and the connection between the two elements can be realized. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
referring to fig. 1 and 2, the present invention provides a steel ball type mechanical locking cylinder, which includes a cylinder 1 and a piston device 2;
the piston device 2 is arranged in the cylinder barrel 1, one end of the cylinder barrel 1 is provided with a cylinder head 3, one end, far away from the cylinder head 3, of the cylinder barrel 1 is provided with a cylinder cover 4, one end of the cylinder head 3 is provided with a rodless cavity oil filling port 7, the center of the cylinder head 3 is provided with an oil cavity 9, the piston device 2 comprises a piston rod 21, a steel ball 23, a floating piston 22, a spring 24 and a locking nut 25, the piston rod 21 is arranged in the cylinder barrel 1, one end of the piston rod 21 is arranged at the locking nut 25, the floating piston 22 is arranged in the piston rod 21, the spring 24 is arranged between the piston rod 21 and the floating piston 22, the steel ball 23 is arranged between the cylinder barrel 1 and the piston rod 21, and a steel ball annular groove 6 is. Thus, pressure oil is injected into the oil cavity 9 in the cylinder head 3 from the rodless cavity oil injection port 7, when the pressure reaches a certain value, the piston device 2 is pushed to move forwards, and when the piston device 2 reaches a proper position, the floating piston 22 is pushed to move by the pressure of the spring 24, so that the steel balls 23 enter the steel ball ring groove 6, and the oil cylinder locking is effectively realized.
Further, the cylinder barrel 1 is connected with the cylinder head 3 through threads and belongs to detachable connection, the cylinder barrel 1 is connected with the cylinder cover 4 through a bolt 5, and the piston rod 21 is connected with the locking nut 25 through threads. The steel ball ring groove 6 is clamped between the piston rod 21 and the cylinder barrel 1. The spring 24 is interposed between the piston rod 21, the floating piston 22 and the lock nut 25. The steel ball 23 is clamped between the cylinder 1 and the piston rod 21. The floating piston 22 is provided with a first sealing member 221 and a second sealing member 222 respectively, the second sealing member 222 is close to the spring 24, the first sealing member 221 is far away from the spring 24, the first sealing member 221 is arranged to prevent oil at the rod cavity end of the piston rod from entering the rod cavity area of the floating piston, and the second sealing member 222 is arranged to prevent oil at the rod cavity end of the piston rod from entering the spring end, so that the spring is ineffective. One end of the cylinder barrel 1 close to the cylinder cover 4 is provided with a rod cavity oil filling port 8.
In this embodiment, the specific working principle of the steel ball type mechanical locking cylinder is as follows:
pressure oil is injected into the oil cavity 9 from the cavity-free oil injection port 7, when the pressure reaches a certain value, the piston device 2 is pushed forwards, the spring 24 is in a pre-compression state at the moment, the floating piston 22 is kept unchanged at the original position, when the piston device 2 runs to the position where the steel ball 23 is close to the edge of the steel ball annular groove 6, the spring 24 releases pre-tightening pressure, so that the floating piston 22 is pushed forwards to push the steel ball 23 into the steel ball annular groove 6, the piston rod 21 stops, at the moment, the steel ball 23 is clamped between the cylinder barrel 1 and the piston rod 21, the system is decompressed, and the oil cylinder locking is realized.
When the oil cylinder is locked and needs to move backwards, pressure oil is injected into the rod cavity area from the rod cavity oil injection port 8, the floating piston 3 is pushed to backwards compress the spring 24 and then move backwards, at the moment, the steel balls 23 fall from the steel ball ring groove 6, the oil cylinder normally works, and the oil cylinder unlocking is realized.
The above description is only the general embodiments of the present invention, and is not intended to limit the present invention in any form, and all the technical matters of the present invention are all within the protection scope of the present invention to any simple modification and equivalent changes made by the above embodiments.
Claims (8)
1. The steel ball type mechanical locking oil cylinder is characterized by comprising a cylinder barrel (1) and a piston device (2);
the piston device (2) is arranged in the cylinder barrel (1);
a cylinder head (3) is arranged at one end of the cylinder barrel (1), and a cylinder cover (4) is arranged at one end, far away from the cylinder head (3), of the cylinder barrel (1);
one end of the cylinder head (3) is provided with a rodless cavity oil filling port (7), and the center of the cylinder head (3) is provided with an oil cavity (9);
the piston device (2) comprises a piston rod (21), a steel ball (23), a floating piston (22), a spring (24) and a locking nut (25);
the piston rod (21) is arranged in the cylinder barrel (1), and one end of the piston rod (21) is arranged at the locking nut (25);
the floating piston (22) is arranged in the piston rod (21);
the spring (24) is arranged between the piston rod (21) and the floating piston (22);
the steel ball (23) is arranged between the cylinder barrel (1) and the piston rod (21);
and a steel ball ring groove (6) is arranged between the outer wall of one end of the piston rod (21), which is far away from the locking nut (25), and the inner wall of the cylinder barrel (1).
2. The steel ball type mechanical locking cylinder according to claim 1, characterized in that the cylinder barrel (1) is connected with the cylinder head (3) by a thread.
3. The steel ball type mechanical locking cylinder according to claim 1, characterized in that the cylinder barrel (1) and the cylinder head (4) are connected by bolts (5).
4. The steel ball type mechanical locking cylinder according to claim 1, characterized in that the piston rod (21) is in threaded connection with the locking nut (25).
5. Steel ball type mechanical locking cylinder according to claim 1, characterized in that a first seal (221) and a second seal (222) are respectively provided in the floating piston (22), the second seal (222) being close to the spring (24), the first seal (221) being remote from the spring (24).
6. The steel ball type mechanical locking oil cylinder according to claim 1, characterized in that a rod cavity oil filling port (8) is arranged at one end of the cylinder barrel (1) close to the cylinder cover (4).
7. Steel ball type mechanical locking cylinder according to claim 1, characterized in that the spring (24) is clamped between the piston rod (21), the floating piston (22) and the locking nut (25).
8. Steel ball type mechanical locking cylinder according to claim 1, characterized in that the floating piston (22) is clamped in the piston rod (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921820465.6U CN211550135U (en) | 2019-10-28 | 2019-10-28 | Steel ball type mechanical locking oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921820465.6U CN211550135U (en) | 2019-10-28 | 2019-10-28 | Steel ball type mechanical locking oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211550135U true CN211550135U (en) | 2020-09-22 |
Family
ID=72498681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921820465.6U Active CN211550135U (en) | 2019-10-28 | 2019-10-28 | Steel ball type mechanical locking oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211550135U (en) |
-
2019
- 2019-10-28 CN CN201921820465.6U patent/CN211550135U/en active Active
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