CN109695605A - A kind of deep-sea self-shield self-locking oil cylinder - Google Patents
A kind of deep-sea self-shield self-locking oil cylinder Download PDFInfo
- Publication number
- CN109695605A CN109695605A CN201910114863.4A CN201910114863A CN109695605A CN 109695605 A CN109695605 A CN 109695605A CN 201910114863 A CN201910114863 A CN 201910114863A CN 109695605 A CN109695605 A CN 109695605A
- Authority
- CN
- China
- Prior art keywords
- oil cylinder
- self
- locking
- rear end
- bearing bracket
- 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
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
-
- 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
- F15B15/1438—Cylinder to end cap assemblies
-
- 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
- F15B15/149—Fluid interconnections, e.g. fluid connectors, passages
-
- 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
- F15B15/202—Externally-operated valves mounted in or on the actuator
-
- 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
Abstract
A kind of deep-sea self-shield self-locking oil cylinder; including cylinder tube; one end is equipped with oil cylinder drive end bearing bracket; the other end is equipped with oil cylinder rear end cap by sealing device; the inner wall of cylinder tube is equipped with oil cylinder piston by sealing device; it is extended with cylinder piston rod in the middle part of oil cylinder piston, cylinder piston rod is pierced by oil cylinder drive end bearing bracket, is mounted on oil cylinder pull rod on the lateral wall of oil cylinder drive end bearing bracket and oil cylinder rear end cap；Oil cylinder latching valve is mounted below oil cylinder drive end bearing bracket and oil cylinder rear end cap, the two structure is identical, and it is symmetrical arranged, mounting structure of the oil cylinder latching valve in oil cylinder rear end cap are as follows: stepped hole is laterally provided with below oil cylinder rear end cap, the self-locking valve core of installation in stepped hole, self-locking valve core across structure, it is docked with the inside of cylinder tube on the head of self-locking valve core, the outer circumference surface of self-locking valve core is connected by the inner wall of self-locking valve seals and stepped hole, the tail portion of self-locking valve core is equipped with self-locking valve regulation screw by self-locking valve spring, the lower part of stepped hole is provided with the through-hole communicated therewith.Reliable operation, self-locking effect are good.
Description
Technical field
The present invention relates to underwater hydraulic Element Technology field, especially a kind of deep-sea self-shield self-locking oil cylinder.
Background technique
With the development of the mankind, land resources are increasingly deficient, and there are about 70.8% surfaces for the ocean covering earth, contain
Biology, mineral products, chemistry and power resource abundant are the mankind finally one of available manors.Deep-ocean resource exploitation is got over
Carry out more concerns, the development equipment also the next many kinds of.Hydraulic system possesses that bearing capacity is strong, power density is big, speed regulation side
Just the advantages that, is used widely in deep-ocean resource exploitation.Since deep-marine-environment is not easy to repair, maintenance must be floated up to every time
Sea even returns to land, time-consuming and laborious, so it is increasingly important to improve system reliability.
Hydraulic system is exactly pressure and medium in deep-marine-environment and the maximum difference of land environment.Pressure can under deep-marine-environment
Up to tens megapascal, surrounding medium are water；Land environmental pressure is only 0.1Mpa, and surrounding medium is air.In hydraulic system
In, hydraulic medium is referred to as systemic blood, is an important source of trouble of system.Oil can be accelerated by entering air in oil liquid by land
Liquid aging usually will do it replacement oil liquid after a certain time of operation, but in deep-sea operating condition, pressure is high, and water can be easier to invade
Enter, causes oil liquid rotten, cause the system failure.So deep-sea hydraulic system, generally eliminates sea using Pressure Compensation Technology
Influence of the water pressure to system improves system effectiveness and system sealing reliability.In hydraulic system, common executive component has oil cylinder
And motor.Motor due to being rotary shaft sealing, be responsible for not related by pressure and the work of sealing element two sides, passes through Pressure Compensation Technology
After oil pressure can be made slightly larger than environment hydraulic pressure so that oil is revealed toward seawater；Dynamic sealing at cylinder piston rod, oil pressure and work
Load is closely related, and not can guarantee by Pressure Compensation Technology greater than environment hydraulic pressure, and piston rod movement process is easy absorption
Impurity particle be easy to cause damage to sealing element.So the dynamic sealing of piston rod becomes the main reason for deep-sea system is intake.
Land self-locking oil cylinder generally mainly has mechanical self-latching and is interference fitted self-locking two kinds of structure type.Mechanical structure is certainly
Lock, Yao Zengjia self-locking structure device will increase the volume weight of oil cylinder；It is interference fitted self-locking use piston and cylinder barrel is interference fitted,
It will increase piston rod length and diameter, and effectively coupling mechanism force is limited.Under deep-marine-environment, since part can be because of environmental pressure
It is deformed, will lead to fit clearance and change.All deep-sea oil cylinders are self-locking general using mechanical structure formula, and structural volume is huge
Greatly, be not suitable for compact structural system.
Summary of the invention
The applicant provides a kind of deep-sea self-shield self-locking oil cylinder for the disadvantage in above-mentioned existing production technology, thus
The use reliability of oil cylinder is greatly improved, deep-marine-environment is adapted to.
The technical solution adopted in the present invention is as follows:
Pacified by sealing device one end of a kind of deep-sea self-shield self-locking oil cylinder, including cylinder tube, the cylinder tube
Equipped with oil cylinder drive end bearing bracket, the other end of cylinder tube is equipped with oil cylinder rear end cap, the inner wall of cylinder tube by sealing device
Oil cylinder piston is installed by sealing device, cylinder piston rod, the cylinder piston rod are extended in the middle part of the oil cylinder piston
It is pierced by oil cylinder drive end bearing bracket, is mounted on oil cylinder pull rod on the lateral wall of the oil cylinder drive end bearing bracket and oil cylinder rear end cap；The oil cylinder
Oil cylinder latching valve is mounted below drive end bearing bracket and oil cylinder rear end cap, the two structure is identical, and is symmetrical arranged, and the oil cylinder is certainly
Mounting structure of the locking-valve in oil cylinder rear end cap are as follows: stepped hole is laterally provided with below the oil cylinder rear end cap, in the stepped hole
Self-locking valve core is installed, the self-locking valve core across structure, the head of the self-locking valve core and cylinder tube it is interior
The outer circumference surface of portion's docking, the self-locking valve core is connected by the inner wall of self-locking valve seals and stepped hole, described self-locking
The tail portion of valve core is equipped with self-locking valve regulation screw by self-locking valve spring, the section of the self-locking valve regulation screw at "] "
Structure, and it is provided with circular hole in the middle, the lower part of the stepped hole is provided with the through-hole communicated therewith.
Its further technical solution is:
It is sealed between the outer circumference surface of the cylinder piston rod and the inner peripheral surface of oil cylinder drive end bearing bracket by sealing device.
The thickness of the oil cylinder drive end bearing bracket is less than the thickness of oil cylinder rear end cap.
Beneficial effects of the present invention are as follows:
Structure of the invention is compact, reasonable, easy to operate, respectively in oil cylinder drive end bearing bracket and oil cylinder rear end cap installation oil cylinder from
Locking-valve easily realizes self-locking function under the action of oil cylinder latching valve, meets the requirement of deep-marine-environment.
The pressure that cylinder cavity can be not only effectively ensured in this hair people is greater than ambient seawater pressure, guarantees that water does not invade oil liquid
In；And can also realize at an arbitrary position self-locking, structure is simple, with environmental pressure increase it is self-locking more reliable.
Oil cylinder of the present invention can guarantee that oil cylinder two sides internal pressure is consistently greater than environmental pressure at runtime, guarantee
Water is not to oil cylinder internal leakage.
Oil cylinder of the present invention carries self-locking function, self-locking reliable, and self-lock force is adjustable.
Cylinder structure of the present invention is compact simple, and can directly be transformed on the basis of crude oil cylinder, has good
Application prospect.
Connection between cylinder tube and all parts of the present invention is all made of sealing device connection, sealing performance
It is good.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the partial enlarged view in the portion D in Fig. 1.
Wherein: 1, oil cylinder drive end bearing bracket；2, cylinder piston rod；3, cylinder tube；4, oil cylinder piston；5, oil cylinder rear end cap；6,
Oil cylinder pull rod；7, self-locking valve core；8, self-locking valve spring；9, self-locking valve regulation screw；10, self-locking valve seals；11, through-hole；
12, stepped hole；13, circular hole.
Specific embodiment
Specific embodiments of the present invention will be described below with reference to the accompanying drawings.
As depicted in figs. 1 and 2, the deep-sea self-shield self-locking oil cylinder of the present embodiment, including cylinder tube 3, cylinder tube 3
One end is equipped with oil cylinder drive end bearing bracket 1 by sealing device, and the other end of cylinder tube 3 is equipped with oil cylinder rear end by sealing device
The inner wall of lid 5, cylinder tube 3 is equipped with oil cylinder piston 4 by sealing device, and it is living that the middle part of oil cylinder piston 4 is extended with oil cylinder
Stopper rod 2, cylinder piston rod 2 are pierced by oil cylinder drive end bearing bracket 1, are mounted on oil on the lateral wall of oil cylinder drive end bearing bracket 1 and oil cylinder rear end cap 5
Cylinder pull rod 6；The lower section of oil cylinder drive end bearing bracket 1 and oil cylinder rear end cap 5 is mounted on oil cylinder latching valve, and the two structure is identical, and symmetrical
Setting, mounting structure of the oil cylinder latching valve in oil cylinder rear end cap 5 are as follows: 5 lower section of oil cylinder rear end cap is laterally provided with stepped hole 12, platform
The self-locking valve core 7 of installation in rank hole 12, self-locking 7 across structure of valve core, the head of self-locking valve core 7 and cylinder tube 3
Inside docking, the outer circumference surface of self-locking valve core 7 is connect by self-locking valve seals 10 with the inner wall of stepped hole 12, self-locking
The tail portion of valve core 7 is equipped with self-locking valve regulation screw 9 by self-locking valve spring 8, the section of self-locking valve regulation screw 9 at "] "
Structure, and it is provided with circular hole 13 in the middle, the lower part of stepped hole 12 is provided with the through-hole 11 communicated therewith.
It is sealed between the outer circumference surface of cylinder piston rod 2 and the inner peripheral surface of oil cylinder drive end bearing bracket 1 by sealing device.
The thickness of oil cylinder drive end bearing bracket 1 is less than the thickness of oil cylinder rear end cap 5.
As depicted in figs. 1 and 2, oil cylinder works under deep-marine-environment, it is assumed that environmental pressure P1.A mouthfuls of connection oil cylinders in Fig. 2
Piston rod 2, B mouthfuls communicate with environment, and C mouthfuls communicate with pressure oil, it is assumed that pressure source pressure is P2, and the reset pressure that A mouthfuls of oil cylinder is
P3, B mouthfuls of pressure application surface product is A1, and C mouthfuls of pressure application surface products are A2, and A mouthfuls of pressure application surface product is A3.By latching valve valve
Known to the balance of core 7: F+P1*A1=P2*A2+P3*A3 (F is spring force).
When cylinder efficient, C mouthfuls are much larger than P1, push self-locking valve core 7 open, high pressure oil enters oil cylinder, pushes away into high pressure fuel source, P2
Dynamic 2 outward movment of cylinder piston rod；4 left pressure of oil cylinder piston increases, i.e., the A mouth pressure P3 of preceding section lid latching valve increases, directly
To after pushing the self-locking spool in left side open, oil cylinder left pressure oil oil return box.
After system shutdown high pressure fuel source, C mouthfuls of pressure of oil cylinder reduce, and latching valve cuts off A mouthfuls under environmental pressure P2 effect
With C mouthfuls, oil cylinder ends A mouth pressure is all larger than environmental pressure P2 at this time.As long as by analysis it is found that after cylinder movement, inside oil cylinder
Pressure at two ends is bound to be greater than environmental pressure, and pressure difference value can be adjusted by self-locking valve regulation screw 9.Moreover, pressure source is cut
It has no progeny, under environmental pressure effect, oil cylinder latching valve can be closed rapidly, avoid piston rod inertia that one lateral pressure of oil cylinder is caused to be lower than
Environmental pressure.
After system shutdown high pressure fuel source, pressure at two ends is P3 on the inside of oil cylinder under immunization with gD DNA vaccine.It suppose there is one to bear
Carry power F1 draw piston outward, necessarily result in one, piston it is micro be displaced outwardly x, since oil cylinder both ends are by self-locking valve closure, cause
Two sides volume changes, and pressure changes, and piston left pressure increases to P5, and piston right atrial pressure is decreased to P6.At this time
There is stress balance F1+P6*A6=P5*A5.As F1 increases, P5 increases always, and P6 reduces always, until be large enough to can be with by P5
Left side latching valve is opened, oil cylinder can just occur slowly to move.When load force F1 push piston inward, still so, it can be achieved that self-locking,
And self-lock force can be adjusted according to fastening screw.Reliable operation can satisfy deep-sea requirement.
Above description is explanation of the invention, is not intended to limit the invention, and limited range of the present invention is referring to right
It is required that within protection scope of the present invention, any type of modification can be made.
Claims (3)
1. one end of a kind of deep-sea self-shield self-locking oil cylinder, including cylinder tube (3), the cylinder tube (3) passes through sealing dress
It sets and is equipped with oil cylinder drive end bearing bracket (1), the other end of cylinder tube (3) is equipped with oil cylinder rear end cap (5) by sealing device, special
Sign is: the inner wall of cylinder tube (3) is equipped with oil cylinder piston (4) by sealing device, the middle part of the oil cylinder piston (4)
It is extended with cylinder piston rod (2), the cylinder piston rod (2) is pierced by oil cylinder drive end bearing bracket (1), the oil cylinder drive end bearing bracket (1) and oil
Oil cylinder pull rod (6) are mounted on the lateral wall of cylinder rear end cap (5)；Under the oil cylinder drive end bearing bracket (1) and oil cylinder rear end cap (5)
Side is mounted on oil cylinder latching valve, and the two structure is identical, and is symmetrical arranged, and the oil cylinder latching valve is in oil cylinder rear end cap (5)
Mounting structure are as follows: is laterally provided with stepped hole (12) below the oil cylinder rear end cap (5), installation is self-locking in the stepped hole (12)
Valve core (7), self-locking valve core (7) the across structure, the head and cylinder tube (3) of the self-locking valve core (7)
Inside docking, the outer circumference surface of the self-locking valve core (7) passes through the inner wall of self-locking valve seals (10) and stepped hole (12)
Face connection, the tail portion of the self-locking valve core (7) are equipped with self-locking valve regulation screw (9) by self-locking valve spring (8), it is described oneself
Locking-valve adjust the section of screw (9) at "] " structure, and be provided with circular hole (13) in the middle, the lower part of the stepped hole (12) is opened
There is the through-hole (11) communicated therewith.
2. a kind of deep-sea self-shield self-locking oil cylinder as described in claim 1, it is characterised in that: the cylinder piston rod (2)
It is sealed between outer circumference surface and the inner peripheral surface of oil cylinder drive end bearing bracket (1) by sealing device.
3. a kind of deep-sea self-shield self-locking oil cylinder as described in claim 1, it is characterised in that: the oil cylinder drive end bearing bracket (1)
Thickness is less than the thickness of oil cylinder rear end cap (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910114863.4A CN109695605B (en) | 2019-02-14 | 2019-02-14 | Self-locking oil cylinder for deep sea self-protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910114863.4A CN109695605B (en) | 2019-02-14 | 2019-02-14 | Self-locking oil cylinder for deep sea self-protection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109695605A true CN109695605A (en) | 2019-04-30 |
| CN109695605B CN109695605B (en) | 2020-03-27 |
Family
ID=66233324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910114863.4A Active CN109695605B (en) | 2019-02-14 | 2019-02-14 | Self-locking oil cylinder for deep sea self-protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109695605B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113503285A (en) * | 2021-07-23 | 2021-10-15 | 河南省稳众减振器有限公司 | Electric control self-locking oil cylinder |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6814104B2 (en) * | 2003-03-05 | 2004-11-09 | James L. Dean | Hydraulic control valve, system and methods |
| US20060283600A1 (en) * | 2004-02-18 | 2006-12-21 | Fmc Technologies, Inc. | Electric-hydraulic power unit |
| CN105402203A (en) * | 2015-12-07 | 2016-03-16 | 郑州宇通重工有限公司 | Oil cylinder tail end automatic lockup valve and hydraulic oil cylinder with oil cylinder tail end automatic lockup valve |
| CN205806063U (en) * | 2016-06-30 | 2016-12-14 | 蚌埠液力机械有限公司 | Multi-angle pull bar form steering cylinder |
| CN106286466A (en) * | 2016-10-28 | 2017-01-04 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | The double rod of a kind of double acting just position, end mechanical locking oil cylinder |
-
2019
- 2019-02-14 CN CN201910114863.4A patent/CN109695605B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6814104B2 (en) * | 2003-03-05 | 2004-11-09 | James L. Dean | Hydraulic control valve, system and methods |
| US20060283600A1 (en) * | 2004-02-18 | 2006-12-21 | Fmc Technologies, Inc. | Electric-hydraulic power unit |
| CN105402203A (en) * | 2015-12-07 | 2016-03-16 | 郑州宇通重工有限公司 | Oil cylinder tail end automatic lockup valve and hydraulic oil cylinder with oil cylinder tail end automatic lockup valve |
| CN205806063U (en) * | 2016-06-30 | 2016-12-14 | 蚌埠液力机械有限公司 | Multi-angle pull bar form steering cylinder |
| CN106286466A (en) * | 2016-10-28 | 2017-01-04 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | The double rod of a kind of double acting just position, end mechanical locking oil cylinder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113503285A (en) * | 2021-07-23 | 2021-10-15 | 河南省稳众减振器有限公司 | Electric control self-locking oil cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109695605B (en) | 2020-03-27 |
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