CN106917788A - Oil exploitation rig hydraulic cylinder with pooling feature - Google Patents
Oil exploitation rig hydraulic cylinder with pooling feature Download PDFInfo
- Publication number
- CN106917788A CN106917788A CN201710263455.6A CN201710263455A CN106917788A CN 106917788 A CN106917788 A CN 106917788A CN 201710263455 A CN201710263455 A CN 201710263455A CN 106917788 A CN106917788 A CN 106917788A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- piston
- support column
- buffer unit
- oil
- 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.)
- Pending
Links
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
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1428—Cylinders
-
- 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
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
-
- 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
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1433—End caps
-
- 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
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses the oil exploitation rig hydraulic cylinder with pooling feature, including piston rod, piston, cylinder barrel, cylinder bottom and cylinder cap, connected by way of welding between cylinder barrel and cylinder bottom, by piston seal in cylinder barrel, piston rod is connected cylinder cap with piston, and rodless cavity is formed between piston and cylinder bottom, cylinder cap is provided with the first buffer unit, piston is provided with the second buffer unit and the first support column, and the second support column is provided with rodless cavity, and the second support column is connected with cylinder bottom.Structure of the present invention is relatively simple, low cost of manufacture, reasonable in design, is easily installed, and piston has buffering effect in cylinder bottom and cylinder cap two ends, further protects sealing and intensity inside hydraulic system.
Description
Technical field
The present invention relates to a kind of mechanical transmission mechanism, and in particular to the oil exploitation rig hydraulic cylinder with pooling feature.
Background technology
Hydraulic drive has the advantages that many protrusions, therefore its application is widely, such as the plastic processing of general industry
Machinery, press, lathe etc.；Engineering machinery, building machinery, agricultural machinery, automobile in walking machine etc.；Steel and iron industry is used
Metallurgical machinery, lifting device, roll adjusting device etc.；The flood gate and dam installation of building hydraulic engineering, riverbed liter
Falling unit, bridge operating mechanism etc.；Power plant turbine arrangements for speed regulation, nuclear power plant etc.；The deck crane tool of ship
(winch), fore door, bulkhead valve, stern propeller etc.；The huge antenna control device of special technique, measurement buoy, lifting
Revolving stage etc.；The cannon manipulation device of war industry, ship stabilizer, aerial vehicle simulation, the folding and unfolding of undercarriage
Apparatus and direction rudder control device etc..Hydraulic cylinder be by hydraulic energy be changed into mechanical energy, do straight reciprocating motion (or swing fortune
It is dynamic) hydraulic actuator, its simple structure, reliable operation when being realized moving back and forth with it, can remove deceleration device from, and
And without drive gap, stable movement, therefore be used widely in the hydraulic system of various machineries.In oil-well rig,
Most of to use hydraulic-driven, hydraulic piston rod cylinder is the conventional executive component of hydraulic system, when hydraulic cylinder travel is at the end,
Piston can collide with front end housing and produce impact, not only influence the service behaviour of plant equipment, and can damage hydraulic cylinder and liquid
Other elements of pressure system, with very big danger.Set in hydraulic cylinder to prevent and mitigating this impact shock
Buffer unit, can play cushioning effect to a certain extent.But, the general buffer unit for using tries to make oil-discharging cavity inner fluid
Discharged by the osculum that throttles (or gap), so that oil-discharging cavity fluid is acted in the compensator or trimmer pressure of piston oil extraction side, reached
Buffering effect, but for big inertia under conditions of, because being limited to piston effect area, oil extraction cavity pressure can be raised drastically, seriously
When can influence hydraulic cylinder and whole hydraulic system intensity and sealing.
The content of the invention
The technical problems to be solved by the invention are that traditional hydraulic damping device is said by the osculum oil extraction that throttles, so as to reach
To the effect of buffering, but so easily cause that the pressure in oil-discharging cavity is drastically raised, and influences the sealing of hydraulic system, purpose
It is that the oil exploitation rig hydraulic cylinder with pooling feature is provided, solves problem described above.
The present invention is achieved through the following technical solutions：
Oil exploitation rig hydraulic cylinder with pooling feature, including piston rod, cylinder cap, cylinder barrel, cylinder bottom and piston, institute
The bottom for stating cylinder barrel is connected with cylinder bottom by welding manner, and by piston seal in cylinder barrel, piston rod is located at the interior of cylinder barrel to cylinder cap
Chamber, and be connected with piston, rodless cavity is provided between the piston and cylinder bottom, the second support column, and second are provided with rodless cavity
Support column is fixed with cylinder bottom, and the piston is provided with blind hole and the first support column, and the second buffer unit, the cylinder are provided with blind hole
Cover to be provided with and also be provided with blind hole, the first buffer unit is provided with blind hole.
Further, oil inlet and oil return opening are provided with the cylinder barrel, oil inlet and oil return opening are located at piston both sides, piston
When bar needs to stretch out, to hydraulic oil is passed through at oil inlet, hydraulic oil promotes piston movement, and when piston rod shrinks, hydraulic oil is from returning
Hydraulic fluid port flows out, and forces piston back to move.
Further, oil inlet is connected with rodless cavity, from oil inlet enter hydraulic oil flow into rodless cavity, hydraulic oil it
Between act on piston.
Further, the first buffer unit and the first support column are two, and are all located at the both sides of piston rod.
Further, on the same line, the first support column is stretched to the axis of the first buffer unit and the first support column
In buffer unit, impulsive force of the piston to cylinder cap is reduced.
Further, with straight line, reduction piston is to cylinder bottom for the axis of the second buffer unit and the second support column
Impulsive force.
Further, the first buffer unit and the second buffer unit are made up of spring and buffer board, spring one end and blind hole
Connection, the other end is connected with buffer board.
Further, it is additionally provided with sealing ring between the piston and cylinder barrel.
The present invention compared with prior art, has the following advantages and advantages：Simple structure of the present invention, cost compared with
Low, reasonable in design, processing simply, is easily assembled, low processing cost, is adapted to large-scale production；Cylinder cap and cylinder bottom are equipped with buffering
Device, can both be clashed into between damper piston and cylinder cap again with the shock between damper piston and cylinder bottom, and buffer unit
Cooperation between support column, can reduce buffer gap, it is ensured that hydraulic cylinder bulk strength and sealing.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is schematic structural view of the invention.
Mark and corresponding parts title in accompanying drawing：
1- piston rods, 2- cylinder caps, the buffer units of 3- first, 4- cylinder barrels, the support columns of 5- first, 6- sealing rings, 7- second delays
Flushing device, the support columns of 8- second, 9- cylinder bottoms, 10- oil return openings, 11- oil inlets, 12- pistons, 13- rodless cavities.
Specific embodiment
To make the object, technical solutions and advantages of the present invention become more apparent, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
It is limitation of the invention.
Embodiment
As shown in figure 1, oil exploitation rig hydraulic cylinder of the present invention with pooling feature, including piston rod 1, cylinder cap 2, cylinder
Cylinder 4, cylinder bottom 9 and piston 12, the cylinder barrel 4 are cylindrical shape, and through hole, the bottom of cylinder barrel 4 and cylinder are provided with the axis of cylinder barrel 4
Bottom 9 is connected by way of welding, and be sealed in piston 12 in cylinder barrel 4 by cylinder cap 2, and piston 12 can be moved in cylinder barrel 4, piston
Bar 1 is located in cylinder barrel 4, and is connected with piston 12, and piston 12 will drive piston rod 1 to be moved in cylinder barrel 4 together, the work
Sealing ring 6 is additionally provided between plug 12 and cylinder barrel 4, sealing ring 6 prevents from being flowed in gap of the hydraulic oil between piston 12 and cylinder barrel 4
It is dynamic, it is additionally provided between piston 12 and cylinder bottom 9 in rodless cavity 13, rodless cavity 13 and is provided with the second support column 8, and the second support column 8
It is connected with cylinder bottom 9, the piston 12 is provided with the blind hole and the first support column 5 being engaged with the second support column, is provided with blind hole
Second buffer unit 7, spring and buffer board are provided with inside the second buffer unit 7, and spring one end is connected with blind hole, the other end with it is slow
Punching is connected, and extrudes buffer board, and spring will drive buffer board to shrink, the axis of the support column 8 of second buffer unit 7 and second
On same straight line, when piston 12 is near cylinder bottom 9, the second support column 8 will support the buffering in the second buffer unit 7
Plate, the spring in the second buffer unit 7 will provide plugging power to piston 12, force the translational speed of piston 12 to slow down,
Piston 12 is reduced to impact cylinder bottom 9；Oil inlet 11 and oil return opening 10 are additionally provided with cylinder barrel 4, oil inlet 11 and oil return opening 10 are located at
The both sides of piston 12, and oil inlet 10 connects with rodless cavity 13, hydraulic oil is entered into rodless cavity 13 by oil inlet 11, is forced
Piston 12 is moved towards the direction of cylinder cap 2, and oil return opening 10 again discharges hydraulic oil, forces piston 12 to be moved towards the direction of cylinder bottom 9
It is dynamic；Blind hole also is provided with cylinder cap 2, blind hole coordinates with the first support column 5, the first buffer unit 3, the first buffering are equipped with blind hole
Device 3 is also to be made up of spring and buffer board, and the support column 5 of first buffer unit 3 and first has two, and their equal positions
In the both sides of piston rod 1, the axis of the first buffer unit 3 and the first support column 5 on same straight line, when piston 12 is near cylinder
When lid 2, the first support column 5 on piston 12 is contacted with the buffer board in the first buffer unit 3, and supporting plate effect is squeezed
Pressure, due to being provided with spring in the first buffer unit 2, spring will force piston 12 to the plugging power of the first support column 5
Translational speed slows down, and reduces impact of the piston 12 to cylinder cap 2.
Above-described specific embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail, should be understood that and the foregoing is only specific embodiment of the invention, be not intended to limit the present invention
Protection domain, all any modification, equivalent substitution and improvements within the spirit and principles in the present invention, done etc. all should include
Within protection scope of the present invention.
Claims (8)
1. there is the oil exploitation rig hydraulic cylinder of pooling feature, including piston rod (1), cylinder cap (2), cylinder barrel (4), cylinder bottom (9)
And piston (12), it is characterised in that：The bottom of the cylinder barrel (4) is welded with cylinder bottom (9), and cylinder cap (2) seals piston (12)
In the cylinder barrel (4), piston rod (12) is connected positioned at the inner chamber of cylinder barrel (4) with piston (12), the piston (12) and cylinder bottom
(9) it is provided between and the second support column (8) is provided with rodless cavity (13), rodless cavity (13), and the second support column (8) and cylinder bottom (9)
Fixed, the piston (12) is provided with blind hole and the first support column (5), the second buffer unit (7), the cylinder cap is provided with blind hole
(2) it is provided with and also is provided with blind hole, the first buffer unit (3) is provided with blind hole.
2. the oil exploitation rig hydraulic cylinder with pooling feature according to claim 1, it is characterised in that：The cylinder barrel
(4) oil inlet (11) and oil return opening (10) are provided with, oil inlet (11) and oil return opening (10) are positioned at piston (12) both sides.
3. the oil exploitation rig hydraulic cylinder with pooling feature according to claim 2, it is characterised in that：The oil-feed
Mouth (10) is connected with rodless cavity (13).
4. the oil exploitation rig hydraulic cylinder with pooling feature according to claim 1, it is characterised in that：Described first
Buffer unit (3) and the first support column (5) are two, and are all located at the both sides of piston rod (1).
5. the oil exploitation rig hydraulic cylinder with pooling feature according to claim 1, it is characterised in that：Described first
The axis of buffer unit (3) and the first support column (5) is on the same line.
6. the oil exploitation rig hydraulic cylinder with pooling feature according to claim 1, it is characterised in that：Described second
The axis of buffer unit (7) and the second support column (8) is with straight line.
7. the oil exploitation rig hydraulic cylinder with pooling feature according to claim 1, it is characterised in that：The piston
(12) sealing ring (6) is additionally provided with and cylinder barrel (4) between.
8. the oil exploitation rig hydraulic cylinder with pooling feature according to claim 1, it is characterised in that：Described first
Buffer unit (3) and the second buffer unit (7) are made up of spring and buffer board, and spring one end is connected with blind hole, the other end with it is slow
Punching is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710263455.6A CN106917788A (en) | 2017-04-21 | 2017-04-21 | Oil exploitation rig hydraulic cylinder with pooling feature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710263455.6A CN106917788A (en) | 2017-04-21 | 2017-04-21 | Oil exploitation rig hydraulic cylinder with pooling feature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106917788A true CN106917788A (en) | 2017-07-04 |
Family
ID=59567577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710263455.6A Pending CN106917788A (en) | 2017-04-21 | 2017-04-21 | Oil exploitation rig hydraulic cylinder with pooling feature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106917788A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654441A (en) * | 2017-10-25 | 2018-02-02 | 中国第汽车股份有限公司 | A kind of synchronizer shift cylinder |
| CN108679041A (en) * | 2018-07-12 | 2018-10-19 | 长兴宏力机械科技有限公司 | A kind of buffer type hydraulic oil cylinder |
| CN112628238A (en) * | 2020-12-24 | 2021-04-09 | 扬州市正浩液压机械设备有限公司 | Hydraulic oil cylinder with high buffering performance and working method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29916190U1 (en) * | 1999-09-15 | 1999-12-09 | Festo Ag & Co | Fluid operated drive |
| CN103438050A (en) * | 2013-09-02 | 2013-12-11 | 山西北方机械制造有限责任公司 | Buffer-after-unloading oil cylinder device |
| CN104653846A (en) * | 2015-02-10 | 2015-05-27 | 无锡智能自控工程股份有限公司 | Spring buffer type pneumatic executing mechanism |
| CN105090159A (en) * | 2015-08-29 | 2015-11-25 | 济南大学 | Low-friction and quick-start hydraulic cylinder based on flutter mechanism |
| CN106481616A (en) * | 2016-12-06 | 2017-03-08 | 泸州长江液压密封件有限公司 | The hydraulic cylinder of self-locking is carried out using spring |
| EP3150863A1 (en) * | 2015-09-30 | 2017-04-05 | Sumitomo Precision Products Co., Ltd. | Hydraulic cylinder for aircraft landing gear |
| CN206655865U (en) * | 2017-04-21 | 2017-11-21 | 成都来宝石油设备有限公司 | Protect Hydraulic Elements hydraulic system against damages |
-
2017
- 2017-04-21 CN CN201710263455.6A patent/CN106917788A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29916190U1 (en) * | 1999-09-15 | 1999-12-09 | Festo Ag & Co | Fluid operated drive |
| CN103438050A (en) * | 2013-09-02 | 2013-12-11 | 山西北方机械制造有限责任公司 | Buffer-after-unloading oil cylinder device |
| CN104653846A (en) * | 2015-02-10 | 2015-05-27 | 无锡智能自控工程股份有限公司 | Spring buffer type pneumatic executing mechanism |
| CN105090159A (en) * | 2015-08-29 | 2015-11-25 | 济南大学 | Low-friction and quick-start hydraulic cylinder based on flutter mechanism |
| EP3150863A1 (en) * | 2015-09-30 | 2017-04-05 | Sumitomo Precision Products Co., Ltd. | Hydraulic cylinder for aircraft landing gear |
| CN106481616A (en) * | 2016-12-06 | 2017-03-08 | 泸州长江液压密封件有限公司 | The hydraulic cylinder of self-locking is carried out using spring |
| CN206655865U (en) * | 2017-04-21 | 2017-11-21 | 成都来宝石油设备有限公司 | Protect Hydraulic Elements hydraulic system against damages |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654441A (en) * | 2017-10-25 | 2018-02-02 | 中国第汽车股份有限公司 | A kind of synchronizer shift cylinder |
| CN107654441B (en) * | 2017-10-25 | 2024-04-16 | 中国第一汽车股份有限公司 | Gear shifting cylinder of synchronizer |
| CN108679041A (en) * | 2018-07-12 | 2018-10-19 | 长兴宏力机械科技有限公司 | A kind of buffer type hydraulic oil cylinder |
| CN112628238A (en) * | 2020-12-24 | 2021-04-09 | 扬州市正浩液压机械设备有限公司 | Hydraulic oil cylinder with high buffering performance and working method thereof |
| CN112628238B (en) * | 2020-12-24 | 2022-07-01 | 扬州市正浩液压机械设备有限公司 | Hydraulic oil cylinder with high buffering performance and working method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170704 |