CN110469559A - A kind of unidirectional mechanical locked hydraulic cylinder - Google Patents
A kind of unidirectional mechanical locked hydraulic cylinder Download PDFInfo
- Publication number
- CN110469559A CN110469559A CN201910832714.1A CN201910832714A CN110469559A CN 110469559 A CN110469559 A CN 110469559A CN 201910832714 A CN201910832714 A CN 201910832714A CN 110469559 A CN110469559 A CN 110469559A
- Authority
- CN
- China
- Prior art keywords
- piston rod
- wedge
- cylinder body
- shaped catch
- piston
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000010720 hydraulic oil Substances 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 12
- 239000004575 stone Substances 0.000 claims description 6
- 238000001727 in vivo Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- F15B2015/268—Fluid supply for locking or release independent of actuator pressurisation
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The present invention relates to a kind of unidirectional mechanical locked hydraulic cylinders, belong to hydraulic cylinder field.It is located at the intrinsic piston rod of cylinder body including hollow cylinder body ontology and one end, piston rod, which is located on the intrinsic one end of cylinder body, is provided with wedge-shaped catch, the wedge point direction of wedge-shaped catch is arranged along the axis direction of piston rod, limited block is provided on the piston rod of wedge-shaped catch wedge point side, limited block is located in cylinder body ontology, the piston rod that several ball wedge-shaped catch bottom end sides being used cooperatively with wedge-shaped catch are provided between wedge-shaped catch and limited block is equipped with the floating piston of annular, floating piston is provided with the mandril for pushing ball position on the side of ball, mandril reciprocatingly slides in gap between cylinder body ontology with floating piston in wedge-shaped catch, it can be realized one direction mechanical interlocking, piston rod is prevented to be displaced, structure is simple, locking is convenient, the sliding risk of hydraulic cylinder is effectively reduced.
Description
Technical field
The invention belongs to hydraulic cylinder fields, are related to a kind of unidirectional mechanical locked hydraulic cylinder.
Background technique
Hydraulic cylinder is widely used in needing on the mechanical equipment of positioning and locking, such as levelling device, guide rail locking apparatus, milling train
Locking device, radar fix device etc..In use, hydraulic cylinder piston rod usually requires to be located in a certain position for a long time
Displacement cannot be had by setting.Currently, most of realize locking positioning using hydraulic system locking circuit type, but due in hydraulic system
Element oil liquid leakage in portion's not can avoid, and locking can generate hydraulic leakage for a long time, and piston rod is caused sliding phenomenon, Jin Erying occur
Ring the efficiency and safety of equipment.
Summary of the invention
In view of this, in piston rod positioning, being mentioned the purpose of the present invention is to provide a kind of unidirectional mechanical locked hydraulic cylinder
For one direction mechanical interlocking.
In order to achieve the above objectives, the invention provides the following technical scheme: a kind of unidirectional mechanical locked hydraulic cylinder, including it is hollow
Cylinder body ontology and one end be located at the intrinsic piston rod of the cylinder body, the other end of the piston rod is exposed to the cylinder body sheet
In vitro, the piston rod seals sliding in the cylinder body ontology；The piston rod is located on the intrinsic one end of the cylinder body
It is provided with wedge-shaped catch, the wedge point direction of the wedge-shaped catch is arranged along the axis direction of the piston rod, the wedge-shaped catch
Wedge point be exposed to the external one end of the cylinder body sheet towards the piston rod and be arranged；The wedge-shaped catch wedge point side it is described
Limited block is provided on piston rod, the limited block is located in the cylinder body ontology, the wedge-shaped catch and limited block
Between be provided with several balls being used cooperatively with the wedge-shaped catch, the diameter of the ball is greater than the wedge-shaped catch and institute
State the gap between cylinder body ontology；The piston rod of wedge-shaped catch bottom end side is equipped with the floating piston of annular, institute
It states floating piston to slide on the piston rod along the axis direction reciprocation sealing of the piston rod, the floating piston is described
Sealing sliding in cylinder body ontology；The floating piston is provided with for pushing the ball position on the side of the ball
Mandril, the mandril is reciprocal with the floating piston in gap between the cylinder body ontology in the wedge-shaped catch
Sliding.
Optionally, the piston rod is additionally provided with the end stone for constraining the floating piston position, the end
The piston rod is arranged in equipped on one end of the floating piston in block.
Optionally, spring ring is provided between the limited block and the ball, the side of the spring ring is connected to
On the limited block, the other side of the spring ring is acted on the ball.
Optionally, the intrinsic hollow sealing of the cylinder body is divided into hydraulic cavities I and hydraulic cavities II by the floating piston,
The hydraulic cavities I are equipped with hydraulic oil channel I, and the hydraulic cavities II are equipped with hydraulic oil channel II.
It optionally, further include auxiliary cylinder block, the piston rod is exposed to one end of the cylinder body ontology in the auxiliary cylinders
Sliding is sealed along the axis direction of the piston rod in vivo, is located at the intracorporal piston rod of the auxiliary cylinders and is equipped with fixed live
Plug, the fixed piston seal sliding with the piston rod in the auxiliary cylinder block.
Optionally, the intracorporal hollow sealing of the auxiliary cylinders is divided into hydraulic cavities III and hydraulic cavities by the fixed piston
IV, the hydraulic cavities III are equipped with hydraulic oil channel III, and the hydraulic cavities IV are equipped with hydraulic oil channel IV.
The beneficial effects of the present invention are: in piston rod it is generally necessary to when positioning for a long time, it can be realized one direction machinery
Locking, prevents piston rod to be displaced, and structure is simple, and locking is convenient, and the sliding risk of hydraulic cylinder is effectively reduced.
Other advantages, target and feature of the invention will be illustrated in the following description to a certain extent, and
And to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, Huo Zheke
To be instructed from the practice of the present invention.Target of the invention and other advantages can be realized by following specification and
It obtains.
Detailed description of the invention
To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention is made below in conjunction with attached drawing excellent
The detailed description of choosing, in which:
Fig. 1 is a kind of unidirectional mechanical locked hydraulic cylinder structural schematic diagram.
Appended drawing reference: cylinder body ontology 1, piston rod 2, wedge-shaped catch 3, limited block 4, ball 5, floating piston 6, mandril 7,
End stone 8, spring ring 9, hydraulic oil channel I 10, hydraulic oil channel II 11, auxiliary cylinder block 12, fixed piston 13, hydraulic oil are logical
Road III 14, hydraulic oil channel IV 15.
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Other advantages and efficacy of the present invention can be easily understood for disclosed content.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints and application, without departing from
Various modifications or alterations are carried out under spirit of the invention.It should be noted that diagram provided in following embodiment is only to show
Meaning mode illustrates basic conception of the invention, and in the absence of conflict, the feature in following embodiment and embodiment can phase
Mutually combination.
Wherein, the drawings are for illustrative purposes only and are merely schematic diagrams, rather than pictorial diagram, should not be understood as to this
The limitation of invention；Embodiment in order to better illustrate the present invention, the certain components of attached drawing have omission, zoom in or out, not
Represent the size of actual product；It will be understood by those skilled in the art that certain known features and its explanation may be omitted and be in attached drawing
It is understood that.
The same or similar label correspond to the same or similar components in the attached drawing of the embodiment of the present invention；It is retouched in of the invention
In stating, it is to be understood that if there is the orientation or positional relationship of the instructions such as term " on ", "lower", "left", "right", "front", "rear"
To be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description of the present invention and simplification of the description, rather than indicate or
It implies that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore is described in attached drawing
The term of positional relationship only for illustration, is not considered as limiting the invention, for the ordinary skill of this field
For personnel, the concrete meaning of above-mentioned term can be understood as the case may be.
Referring to Fig. 1, being a kind of unidirectional mechanical locked hydraulic cylinder, it is located at cylinder body including hollow cylinder body ontology 1 and one end
Piston rod 2 in ontology 1, the other end of piston rod 2 are exposed to outside cylinder body ontology 1, and piston rod 2 seals cunning in cylinder body ontology 1
It is dynamic；Wedge-shaped catch 3 is provided on one end that piston rod 2 is located in cylinder body ontology 1, the wedge point direction of wedge-shaped catch 3 is along piston rod 2
Axis direction setting, the wedge point of wedge-shaped catch 3 is exposed to one end outside cylinder body ontology 1 towards piston rod 2 and is arranged；Wedge-shaped catch
Limited block 4 is provided on the piston rod 2 of 3 wedge point sides, limited block 4 is located in cylinder body ontology 1, wedge-shaped catch 3 and limit
Several balls 5 being used cooperatively with wedge-shaped catch 3 are provided between block 4, the diameter of ball 5 is greater than wedge-shaped catch 3 and cylinder body
Gap between ontology 1；The piston rod 2 of 3 bottom end side of wedge-shaped catch is equipped with the floating piston 6 of annular, and floating piston 6 is in work
It is slided on stopper rod 2 along the axis direction reciprocation sealing of piston rod 2, floating piston 6 seals sliding in cylinder body ontology 1；It floats and lives
Plug 6 is provided with the mandril 7 for pushing 5 position of ball on the side of ball 5, and mandril 7 is in wedge-shaped catch 3 and cylinder body ontology
It reciprocatingly slides in gap between 1 with floating piston 6.
In the present embodiment, piston rod 2 is additionally provided with the end stone 8 for constraining 6 position of floating piston, end stone 8
Piston rod 2 is set equipped on one end of floating piston 6.Spring ring 9, spring ring 9 are provided between limited block 4 and ball 5
Side be connected on limited block 4, the other side of spring ring 9 acts on ball 5.Floating piston 6 will be in cylinder body ontology 1
Hollow sealing is divided into hydraulic cavities I and hydraulic cavities II, and hydraulic cavities I are equipped with hydraulic oil channel I 10, and hydraulic cavities II are equipped with hydraulic
Oily channel II 11.It further include auxiliary cylinder block 12, piston rod 2 is exposed to one end of cylinder body ontology 1 in auxiliary cylinder block 12 along piston
The axis direction of bar 2 seals sliding, and the piston rod 2 in auxiliary cylinder block 12 is equipped with fixed piston 13, fixed piston 13 with
Piston rod 2 seals sliding in auxiliary cylinder block 12 together.Hollow sealing in auxiliary cylinder block 12 is divided into liquid by fixed piston 13
Chamber III and hydraulic cavities IV are pressed, hydraulic cavities III are equipped with hydraulic oil channel III 14, and hydraulic cavities IV are equipped with hydraulic oil channel IV 15.
In actual use, hydraulic oil channel I 10 and hydraulic oil channel II 11 are closed, and piston rod 2 stops movement, spring ring 9
Fix ball 5 with 3 relative position of wedge-shaped catch, when piston rod 2 is exposed to 1 one end of cylinder body ontology by towards piston rod 2
When applied external force, wedge-shaped catch 3 is acted on ball 5, due to the diameter of ball 5 be greater than wedge-shaped catch 3 and cylinder body ontology 1 it
Between gap, ball 5 wedge-shaped catch 3 act on lower compression on 1 inner wall of cylinder body ontology, applied external force is bigger, ball 5 and cylinder
Frictional force between 1 inner wall of body ontology is bigger, the locking of 2 position of piston rod.
When piston rod 2 needs to unlock, hydraulic oil channel I 10 and hydraulic oil channel II 11 are opened, pressurization in hydraulic cavities II,
I pressure release of hydraulic cavities, floating piston 6 move under the action of pressure to hydraulic cavities I in hydraulic cavities II, and mandril 7 passes through wedge-shaped catch 3
It with the gap between cylinder body ontology 1, acts on ball 5, ball 5 is moved to limited block 4, and ball 5 connects with the disengaging of ball 5
Touching, lock release.
Auxiliary cylinder block 12 is used to provide auxiliary power for the movement of piston rod 2.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of the technical program, should all be covered in the present invention
Scope of the claims in.
Claims (6)
1. a kind of unidirectional mechanical locked hydraulic cylinder, it is characterised in that: be located at the cylinder body including hollow cylinder body ontology and one end
Intrinsic piston rod, the other end of the piston rod are exposed to that the cylinder body sheet is external, and the piston rod is in the cylinder body sheet
Sealing sliding in vivo；
The piston rod, which is located on the intrinsic one end of the cylinder body, is provided with wedge-shaped catch, the wedge point direction of the wedge-shaped catch
Axis direction along the piston rod is arranged, and the wedge point of the wedge-shaped catch is exposed to the cylinder body ontology towards the piston rod
Outer one end setting；
Limited block is provided on the piston rod of the wedge-shaped catch wedge point side, the limited block is located at the cylinder body
In ontology, several balls being used cooperatively with the wedge-shaped catch are provided between the wedge-shaped catch and limited block, it is described
The diameter of ball is greater than the gap between the wedge-shaped catch and the cylinder body ontology；
The piston rod of wedge-shaped catch bottom end side is equipped with the floating piston of annular, and the floating piston is in the work
It is slided on stopper rod along the axis direction reciprocation sealing of the piston rod, the floating piston seals cunning in the cylinder body ontology
It is dynamic；
The floating piston is provided with the mandril for pushing the ball position, the mandril on the side of the ball
It reciprocatingly slides in the gap between the cylinder body ontology with the floating piston in the wedge-shaped catch.
2. a kind of unidirectional mechanical locked hydraulic cylinder according to claim 1, it is characterised in that: the piston rod is additionally provided with
For constraining the end stone of the floating piston position, the end stone setting is lived in the piston rod equipped with the floating
On one end of plug.
3. a kind of unidirectional mechanical locked hydraulic cylinder according to claim 1, it is characterised in that: the limited block with it is described
Spring ring is provided between ball, the side of the spring ring is connected on the limited block, the other side of the spring ring
It acts on the ball.
4. a kind of unidirectional mechanical locked hydraulic cylinder according to claim 1, it is characterised in that: the floating piston will be described
The intrinsic hollow sealing of cylinder body is divided into hydraulic cavities I and hydraulic cavities II, and the hydraulic cavities I are equipped with hydraulic oil channel I, described
Hydraulic cavities II are equipped with hydraulic oil channel II.
5. a kind of unidirectional mechanical locked hydraulic cylinder according to claim 1, it is characterised in that: it further include auxiliary cylinder block, institute
It states piston rod and is exposed to the axis direction sealing of one end of the cylinder body ontology in the auxiliary cylinder block along the piston rod and slide
It is dynamic, it is located at the intracorporal piston rod of the auxiliary cylinders and is equipped with fixed piston, the fixed piston is with the piston rod
Sliding is sealed in the auxiliary cylinder block.
6. a kind of unidirectional mechanical locked hydraulic cylinder according to claim 5, it is characterised in that: the fixed piston will be described
The intracorporal hollow sealing of auxiliary cylinders is divided into hydraulic cavities III and hydraulic cavities IV, and the hydraulic cavities III are equipped with hydraulic oil channel III,
The hydraulic cavities IV are equipped with hydraulic oil channel IV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910832714.1A CN110469559B (en) | 2019-09-04 | 2019-09-04 | Unidirectional mechanical locking hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910832714.1A CN110469559B (en) | 2019-09-04 | 2019-09-04 | Unidirectional mechanical locking hydraulic cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110469559A true CN110469559A (en) | 2019-11-19 |
| CN110469559B CN110469559B (en) | 2024-07-09 |
Family
ID=68514992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910832714.1A Active CN110469559B (en) | 2019-09-04 | 2019-09-04 | Unidirectional mechanical locking hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110469559B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003176807A (en) * | 2001-12-12 | 2003-06-27 | Komatsu Ltd | Hydraulic cylinder |
| EP1803943A2 (en) * | 2005-12-29 | 2007-07-04 | Bümach Engineering International B.V. | Fluid actuated working cylinder with mechanical position locking in a pressureless state |
| CN105292241A (en) * | 2015-11-20 | 2016-02-03 | 湖北汽车工业学院 | Automobile rear wheel steering hydraulic alignment cylinder and use method thereof |
| CN105402189A (en) * | 2015-12-01 | 2016-03-16 | 中国船舶重工集团公司第七一九研究所 | Hydraulic cylinder for outboard device with automatic locking and unlocking functions |
| CN105570228A (en) * | 2014-10-09 | 2016-05-11 | 吴贤卜 | Mechanical self-locking type auxiliary supporting cylinder |
| CN106481613A (en) * | 2016-08-25 | 2017-03-08 | 北京冶自欧博科技发展有限公司 | A kind of machine liquid dual fail-safe locked hydraulic cylinder |
| CN107237795A (en) * | 2017-08-09 | 2017-10-10 | 江苏龙城洪力液压设备有限公司 | Mechanical interlocking hydraulic jack |
-
2019
- 2019-09-04 CN CN201910832714.1A patent/CN110469559B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003176807A (en) * | 2001-12-12 | 2003-06-27 | Komatsu Ltd | Hydraulic cylinder |
| EP1803943A2 (en) * | 2005-12-29 | 2007-07-04 | Bümach Engineering International B.V. | Fluid actuated working cylinder with mechanical position locking in a pressureless state |
| CN105570228A (en) * | 2014-10-09 | 2016-05-11 | 吴贤卜 | Mechanical self-locking type auxiliary supporting cylinder |
| CN105292241A (en) * | 2015-11-20 | 2016-02-03 | 湖北汽车工业学院 | Automobile rear wheel steering hydraulic alignment cylinder and use method thereof |
| CN105402189A (en) * | 2015-12-01 | 2016-03-16 | 中国船舶重工集团公司第七一九研究所 | Hydraulic cylinder for outboard device with automatic locking and unlocking functions |
| CN106481613A (en) * | 2016-08-25 | 2017-03-08 | 北京冶自欧博科技发展有限公司 | A kind of machine liquid dual fail-safe locked hydraulic cylinder |
| CN107237795A (en) * | 2017-08-09 | 2017-10-10 | 江苏龙城洪力液压设备有限公司 | Mechanical interlocking hydraulic jack |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110469559B (en) | 2024-07-09 |
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