CN112283198A - Mechanical self-locking spiral swinging oil cylinder - Google Patents
Mechanical self-locking spiral swinging oil cylinder Download PDFInfo
- Publication number
- CN112283198A CN112283198A CN202011284249.1A CN202011284249A CN112283198A CN 112283198 A CN112283198 A CN 112283198A CN 202011284249 A CN202011284249 A CN 202011284249A CN 112283198 A CN112283198 A CN 112283198A
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- Prior art keywords
- locking
- self
- oil
- communicated
- cavity
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/12—Characterised by the construction of the motor unit of the oscillating-vane or curved-cylinder type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/26—Locking mechanisms
- F15B15/261—Locking mechanisms using positive interengagement, e.g. balls and grooves, for locking in the end positions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2215/00—Fluid-actuated devices for displacing a member from one position to another
- F15B2215/30—Constructional details thereof
Abstract
The invention relates to the technical field of oil cylinders and discloses a mechanical self-locking spiral swinging oil cylinder which comprises a spiral swinging oil cylinder body, a locking end cover, a self-locking cylinder barrel, a self-locking piston, a tail cover, a locking spring, a spring sleeve, a steel ball, a fixed spring, a control bolt and the like. The self-locking piston is located the self-locking cylinder to the inside of the self-locking cylinder is divided into an unlocking cavity and a locking cavity which are not communicated with each other, the unlocking cavity is communicated with the control port C, the locking cavity is communicated with the unlocking cavity in a one-way mode through a valve group, the self-locking piston performs reciprocating motion under the action of medium pressure between the unlocking cavity and the locking cavity, a locking pin is machined on one side of the self-locking piston, and an anti-rotation hole is machined in the self-locking cylinder. The invention automatically realizes the mechanical locking and unlocking of the spiral swing oil cylinder by arranging a simple mechanical structure, thereby improving the working efficiency.
Description
Technical Field
The invention relates to the technical field of oil cylinders, in particular to a mechanical self-locking spiral swinging oil cylinder.
Background
The spiral swing cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs rotary reciprocating motion. When the reciprocating rotary motion is realized by utilizing the spiral swing oil cylinder, no transmission gap exists, and the motion is stable. According to the working requirement, sometimes the workpiece needs to be kept unchanged in position after rotating to a certain position or within a certain time after the workpiece stops working, and at the moment, in order to prevent the workpiece from displacing under the action of other forces such as external force, gravity and the like, the spiral swing oil cylinder needs to be locked.
At present, self-locking of the spiral swing oil cylinder is mainly oil way self-locking, and self mechanical self-locking does not exist. The oil circuit is self-locked, namely a valve is arranged on the oil circuit for pressure maintaining, so that hydraulic oil of the spiral swing oil cylinder does not return to the oil tank, and the spiral swing oil cylinder is filled with certain pressure oil. However, the self-locking of the oil way is not very safe and reliable, the valve in the oil way also has the leakage problem in the self-locking process, and the workpiece can still rotate under the action of external force, gravity and other forces after a long time, so that the safety of equipment is seriously influenced. In order to realize the self-locking of the spiral oscillating cylinder, a hydraulic lock can be adopted, but the hydraulic lock also has the leakage problem in the self-locking process, the self-locking precision is not high and the workpiece displacement phenomenon occurs after the leakage, and when the oil circuit fails, the precision and the reliability can not be ensured, so the hydraulic lock can not realize the self-locking of the spiral oscillating cylinder for a long time, and the self-locking of the spiral oscillating cylinder is realized by the combined action of a plurality of auxiliary elements such as a one-way valve, a reversing valve and the like, which not only ensures the self-locking cost to be high, but also occupies more space when the self-locking is realized, increases the oil circuit, further increases the possibility of the leakage, and brings inconvenience for maintenance and use.
Disclosure of Invention
The invention aims to solve the problems that the self-locking cost is high, more space is occupied when the self-locking is realized, oil paths are increased, the possibility of leakage is further increased, and the inconvenience is brought to maintenance and use.
In order to achieve the purpose, the invention adopts the following technical scheme:
a mechanical self-locking spiral swinging oil cylinder comprises a spiral swinging oil cylinder body, a locking end cover, a self-locking cylinder barrel, a self-locking piston, a tail cover, a locking spring, a spring sleeve, a steel ball, a fixed spring, a control bolt and the like, wherein an oil port A, an oil port B and a control port C are arranged on the spiral swinging cylinder barrel, and the control port C is communicated with the oil port A and the oil port B through a valve group. The self-locking piston is located in the self-locking cylinder barrel, the interior of the self-locking cylinder barrel is divided into an unlocking cavity and a locking cavity which are not communicated with each other, the unlocking cavity is communicated with the control port C, the locking cavity is communicated with the unlocking cavity in a one-way mode through a valve group, the self-locking piston performs reciprocating motion under the action of medium pressure between the unlocking cavity and the locking cavity, a locking pin is machined on one side of the self-locking piston, an anti-rotation hole is machined in the self-locking cylinder barrel, and the locking pin penetrates through the anti-rotation hole.
Preferably, the locking pin is connected with the self-locking piston, the locking pin penetrates through the anti-rotation hole, meanwhile, the locking pin can reciprocate along with the self-locking piston, and the locking pin enters the locking hole or retracts in a reciprocating mode.
Preferably, the valve group enables the oil port A and the oil port B to be communicated with the control port C, namely the oil port A, the oil port A and the control port C are communicated, and the oil port B and the control port C are communicated; the oil port B is communicated with the control port C, and the oil port A is not communicated with the control port C.
Preferably, the valve group is communicated with the unlocking cavity and the locking cavity in a one-way communication mode.
Compared with the prior art, the invention provides a mechanical self-locking spiral swinging oil cylinder, which has the following beneficial effects:
according to the mechanical self-locking spiral swinging oil cylinder, the self-locking piston in the self-locking cylinder body moves, so that the locking pin penetrates through the self-locking cylinder barrel and enters the locking hole of the locking end cover, mechanical limiting and fixing of a rotating shaft of the spiral swinging cylinder are achieved, and locking of the state of the spiral swinging cylinder is achieved. Therefore, the locking mechanism is utilized to form mechanical locking on the rotating shaft of the spiral swing cylinder, the reliability of locking the state of the spiral swing cylinder is improved, the sealing requirement of a sealing element in the locking state is omitted, the leakage problem existing in the locking process of the conventional spiral swing cylinder by an oil way or a hydraulic lock is avoided, and the protection to the use environment and the stable reliability of the spiral swing cylinder in the locking state are improved.
2. The mechanical self-locking spiral swinging oil cylinder and the mechanical locking mechanism have the advantages of simple structure, compact size, low manufacturing cost, automatic mechanical locking and unlocking of the spiral swinging oil cylinder and the like.
Drawings
FIG. 1 is a schematic view of an unlocking structure in a mechanical self-locking spiral swing oil cylinder provided by the invention;
fig. 2 is a schematic diagram of a locking structure in a mechanical self-locking spiral swing oil cylinder provided by the invention.
In the figure: 1. a spiral swing cylinder body; 2. locking the end cover; 21. a locking hole; 3. a spirally oscillating cylinder barrel; 4. a self-locking piston; 41. locking the pin; 5. self-locking cylinder barrels; 51. an anti-rotation hole; 6. a locking spring; 7. a spring housing; 8. a tail cover; 9. a steel ball; 10. fixing the spring; 11. a control bolt; 12. a control port C; 13. an oil port A; 14. and an oil port B.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-2, a mechanical self-locking spiral swing cylinder comprises a spiral swing cylinder body 1, a locking end cover 2, a self-locking cylinder barrel 5, a self-locking piston 4, a tail cover 8, a locking spring 6, a spring sleeve 7, a steel ball 9, a fixed spring 10, a control bolt 11 and the like, wherein an oil port a13, an oil port B14 and a control port C12 are arranged on the spiral swing cylinder barrel 3, and the control port C12 is communicated with the oil port a13 and the oil port B14 through a valve group. The self-locking piston 4 is positioned in the self-locking cylinder barrel 5, the interior of the self-locking cylinder barrel 5 is divided into an unlocking cavity and a locking cavity which are not communicated with each other, the unlocking cavity is communicated with the control port C12, the locking cavity is communicated with the unlocking cavity in a one-way mode through a valve bank, the self-locking piston 4 reciprocates under the action of medium pressure between the unlocking cavity and the locking cavity, a locking pin 41 is machined on one side of the self-locking piston 4, an anti-rotation hole 51 is machined in the self-locking cylinder barrel 5, the locking pin 41 penetrates through the anti-rotation hole 51, when oil enters from an oil port A13 or an oil port B14, the control port C12 is communicated with the oil port A13 or the oil port B14, the hydraulic pressure borne by the self-locking piston 4 is larger than the acting force of the locking spring 6, the self-locking piston 4 compresses the locking spring 6 and moves towards the locking cavity, the locking pin 41 moves along with the self-locking, when oil is fed from the oil port A13, the oil is returned from the oil port B14, the spiral swinging oil cylinder rotates anticlockwise and rotates to the limit position, the oil port A13 releases pressure, the self-locking piston 4 moves towards the unlocking cavity under the action of the locking spring 6, the locking pin 41 moves along with the self-locking piston 4, the locking pin 41 enters the locking hole 21, the spiral swinging oil cylinder is locked to realize mechanical locking of the spiral swinging oil cylinder, when the oil port B14 is filled with pressure oil, the oil is returned from the oil port A13, the spiral swinging oil cylinder rotates clockwise and rotates to the limit position, the oil port B14 releases pressure, the locking end cover 2 is not provided with the locking hole at the position, and the spiral swinging oil cylinder is in the unlocking state at the position.
The locking pin 41 is connected with the self-locking piston 4, the locking pin 41 penetrates through the anti-rotation hole 51, meanwhile, the locking pin 41 can reciprocate along with the self-locking piston 4, and the locking pin 41 enters the locking hole in a reciprocating mode or retracts to achieve mechanical locking and unlocking of the spiral swinging cylinder.
The valve group enables the oil port A13 and the oil port B14 to be communicated with the control port C12, namely the oil port A13, the oil port A13 and the control port C12 are communicated, and the oil port B14 and the control port C12 are communicated; the oil port B14 is communicated, the oil port B14 is communicated with the control port C12, the oil port A13 is not communicated with the control port C12, the locking mechanism is in an unlocking state when the oil port A13 or the oil port B14 is communicated with the oil, and the spiral swing oil cylinder can reciprocate; after the spiral oscillating cylinder rotates to the extreme position, the oil port A13 stops supplying oil, the locking mechanism is in a locking state, the spiral oscillating cylinder is locked, and the mechanical locking of the spiral oscillating cylinder is realized.
The valve group is communicated with the unlocking cavity and the locking cavity in a one-way communication mode, when the self-locking piston 4 moves towards the locking cavity, gas or hydraulic oil in the locking cavity is compressed to form high pressure, the gas or the hydraulic oil can enter the unlocking cavity through the valve group to be decompressed, and the hydraulic oil in the unlocking cavity cannot enter the locking cavity through the valve group.
In the invention, when oil enters from an oil port A13 or an oil port B14, a control port C12 is communicated with an oil port A13 or an oil port B14, the hydraulic pressure borne by a self-locking piston 4 is greater than the acting force of a locking spring 6, the self-locking piston 4 compresses the locking spring 6 and moves towards a locking cavity, a locking pin 41 moves along with the self-locking piston 4, the locking pin 41 is separated from a locking hole 21, a spiral oscillating cylinder is in an unlocking state and can rotate clockwise or anticlockwise, when the oil enters from an oil port A13, the oil returns from an oil port B14, the spiral oscillating cylinder rotates anticlockwise, after rotating to a limit position, the oil port A13 is decompressed, the self-locking piston 4 moves towards the unlocking cavity under the acting force of the locking spring 6, the locking pin 4 moves along with the self-locking piston 4, the locking pin 41 enters into the locking hole 21, the spiral oscillating cylinder is locked, the mechanical locking of the spiral oscillating cylinder is, the oil port A13 returns oil, the spiral swinging oil cylinder rotates clockwise, after the spiral swinging oil cylinder rotates to the limit position, the oil port B14 releases pressure, no locking hole is formed in the locking end cover 2 at the position, and the spiral swinging oil cylinder is in an unlocking state at the position.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (4)
1. A mechanical self-locking spiral swing oil cylinder comprises a spiral swing oil cylinder body (1), a locking end cover (2), a self-locking cylinder barrel (5), a self-locking piston (4), a tail cover (8), a locking spring (6), a spring sleeve (7), a steel ball (9), a fixing spring (10), a control bolt (11) and the like, and is characterized in that an oil port A (13), an oil port B (14) and a control port C (12) are arranged on the spiral swing oil cylinder barrel (3), the control port C (12) is communicated with the oil port A (13) and the oil port B (14) through a valve group 1, the self-locking piston (4) is positioned in the self-locking cylinder barrel (5) and divides the inside of the self-locking cylinder barrel (5) into an unlocking cavity and a locking cavity which are not communicated with each other, the unlocking cavity is communicated with the control port C (12), the locking cavity is communicated with the unlocking cavity (in a one-way) through the valve group 2, and the self-locking piston (4) performs, and a locking pin (41) is processed on one side of the self-locking piston (4), an anti-rotation hole (51) is processed on the self-locking cylinder barrel (5), and the locking pin (41) penetrates through the anti-rotation hole (51).
2. The mechanical self-locking spiral oscillating cylinder according to claim 1, characterized in that: the locking pin (41) is connected with the self-locking piston (4), the locking pin (41) penetrates through the anti-rotation hole (51), meanwhile, the locking pin (41) can reciprocate along with the self-locking piston (4), and the locking pin (41) enters the locking hole or retracts in a reciprocating mode.
3. The mechanical self-locking spiral oscillating cylinder according to claim 1, characterized in that: the valve group 1 enables an oil port A (13) and an oil port B (14) to be communicated with a control port C (12), namely the oil port A (13), the oil port A (13) is communicated with the control port C (12), and the oil port B (14) is communicated with the control port C (12); the oil port B (14) is communicated with oil, the oil port B (14) is communicated with the control port C (12), and the oil port A (13) is not communicated with the control port C (12).
4. The mechanical self-locking spiral oscillating cylinder according to claim 1, characterized in that: the valve group 2 is communicated with an unlocking cavity and a locking cavity (one-way communication).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011284249.1A CN112283198B (en) | 2020-11-17 | 2020-11-17 | Mechanical self-locking spiral swinging oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011284249.1A CN112283198B (en) | 2020-11-17 | 2020-11-17 | Mechanical self-locking spiral swinging oil cylinder |
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| Publication Number | Publication Date |
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| CN112283198A true CN112283198A (en) | 2021-01-29 |
| CN112283198B CN112283198B (en) | 2023-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011284249.1A Active CN112283198B (en) | 2020-11-17 | 2020-11-17 | Mechanical self-locking spiral swinging oil cylinder |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3586136A (en) * | 1969-09-12 | 1971-06-22 | Houdaille Industries Inc | Hydraulically releasable locking brakes for rotary devices |
| CN101782090A (en) * | 2010-03-10 | 2010-07-21 | 无锡市长江液压缸厂 | Double self locking hydraulic cylinder |
| CN102581328A (en) * | 2012-03-14 | 2012-07-18 | 赵长军 | Front swinging cylinder-type hollow hydraulic chuck |
| CN103742476A (en) * | 2013-12-30 | 2014-04-23 | 中船重工中南装备有限责任公司 | Spirally swinging hydraulic cylinder |
| CN103949932A (en) * | 2014-04-28 | 2014-07-30 | 程利军 | Cylinder boring tool for V-shaped cylinder engine |
| CN104314909A (en) * | 2014-10-09 | 2015-01-28 | 平原机器厂（新乡） | Rotary oscillating cylinder and pneumatic driving device and windscreen wiper using same |
| CN105465093A (en) * | 2015-12-31 | 2016-04-06 | 上海盾克机械有限公司 | Spiral swing hydraulic cylinder |
| US20160097407A1 (en) * | 2014-10-01 | 2016-04-07 | Woodward, Inc. | Locking Rotary Actuator |
| CN105736665A (en) * | 2014-12-12 | 2016-07-06 | 西北机器有限公司 | Swing type multistage electric telescopic cylinder |
| CN109812465A (en) * | 2019-04-03 | 2019-05-28 | 沈阳工业大学 | The servo screw oscillating cylinder of Speed On-off Valve |
-
2020
- 2020-11-17 CN CN202011284249.1A patent/CN112283198B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3586136A (en) * | 1969-09-12 | 1971-06-22 | Houdaille Industries Inc | Hydraulically releasable locking brakes for rotary devices |
| CN101782090A (en) * | 2010-03-10 | 2010-07-21 | 无锡市长江液压缸厂 | Double self locking hydraulic cylinder |
| CN102581328A (en) * | 2012-03-14 | 2012-07-18 | 赵长军 | Front swinging cylinder-type hollow hydraulic chuck |
| CN103742476A (en) * | 2013-12-30 | 2014-04-23 | 中船重工中南装备有限责任公司 | Spirally swinging hydraulic cylinder |
| CN103949932A (en) * | 2014-04-28 | 2014-07-30 | 程利军 | Cylinder boring tool for V-shaped cylinder engine |
| US20160097407A1 (en) * | 2014-10-01 | 2016-04-07 | Woodward, Inc. | Locking Rotary Actuator |
| CN104314909A (en) * | 2014-10-09 | 2015-01-28 | 平原机器厂（新乡） | Rotary oscillating cylinder and pneumatic driving device and windscreen wiper using same |
| CN105736665A (en) * | 2014-12-12 | 2016-07-06 | 西北机器有限公司 | Swing type multistage electric telescopic cylinder |
| CN105465093A (en) * | 2015-12-31 | 2016-04-06 | 上海盾克机械有限公司 | Spiral swing hydraulic cylinder |
| CN109812465A (en) * | 2019-04-03 | 2019-05-28 | 沈阳工业大学 | The servo screw oscillating cylinder of Speed On-off Valve |
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| Publication number | Publication date |
|---|---|
| CN112283198B (en) | 2023-01-20 |
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