CN106438564B - It is a kind of can cross-over control synchronous interlocking oil cylinder - Google Patents
It is a kind of can cross-over control synchronous interlocking oil cylinder Download PDFInfo
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- CN106438564B CN106438564B CN201611094537.4A CN201611094537A CN106438564B CN 106438564 B CN106438564 B CN 106438564B CN 201611094537 A CN201611094537 A CN 201611094537A CN 106438564 B CN106438564 B CN 106438564B
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- hydraulic fluid
- piston rod
- fluid port
- ring
- cylinder barrel
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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
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1404—Characterised by the construction of the motor unit of the straight-cylinder type in clusters, e.g. multiple cylinders in one block
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention discloses it is a kind of can cross-over control synchronous interlocking oil cylinder, its cylinder barrel（4）With bonnet（1）And protecgulum（6）Connection；Cylinder barrel（4）Inside is provided with piston rod（5）, piston rod（5）Pass through bolt and valve block（7）Connection；Valve block（7）On inserted check valve（23）, and embedded one-way throttle valve（8）By with joint（9）It is threadedly coupled one-way throttle valve（8）It is spacing；Piston rod（5）Internal and gland（2）Connection；Guide rod is provided with inside gland（3）, guide rod（3）With bonnet（1）It is connected.Valve block（7）Four hydraulic fluid ports are provided with, pass through oil circuit and rodless cavity respectively（24）, plunger cavity（27）, rod chamber（25）Connection；Rod chamber（25）And plunger cavity（27）With equal active area, stretching and the retraction absolute synchronization of two oil cylinders can be ensured after two oil cylinders are cross interconnected.Synchronous interlocking cylinder structure of the invention is compact, and locating distance and stroke on oil cylinder influence very little, and possesses simple to operate, integrated level height, easy to maintenance, the advantages such as fault rate is low.
Description
Technical field：
The present invention relates to a kind of synchronous interlocking oil cylinder, more particularly to a kind of integrated level it is high, absolute synchronization can be ensured, can be intersected
Control, there is pipeline explosion prevention function, the synchronous interlocking oil cylinder of one-way throttle function.
Background technology：
Existing synchronous fuel tank technology generally has two kinds：The first is by two pairs of major-minor oil cylinders（Totally four）Pass through isometric
With cross interconnected realization；Second is to force two oil cylinders to be realized synchronously by the limitation of outside mechanical structure.The first simultaneous techniques
Realization need that four oil cylinders are cross interconnected could realize, and need applied mechanical lock and unlocking mechanism to realize the locking of equipment
And unblock, bulk take big, complicated in mechanical structure, cost is higher.The realization of second of simultaneous techniques is, it is necessary to strictly control
The metal plate quality and machining tolerance of mechanism member, or the processing of balanced sheet metal component is adjusted by extra steel wire rope and assembly pulley
Error, and need also exist for applied mechanical lock and unlocking mechanism realizes locking and the unblock of equipment, this technology is to panel beating
Quality requirement is high, and equipment installation is complicated, easily cause installation foundation loosely, the both sides lift arm rate of climb not etc., lifting
Arm deformation, self-locking device failure, hydraulic circuit explosion, cause security incident.
The content of the invention：
It is small, simple in construction that deficiency it is an object of the invention to overcome above-mentioned prior art provides a kind of space hold
Practicality, cost is relatively low, can ensure absolute synchronization, synchronously interlocking cylinder structure is compact, and locating distance and stroke on oil cylinder influence very
Small, simple to operate, integrated level is high, and easy to maintenance, fault rate is low, and there is pipeline explosion prevention function, one-way throttle function to intersect
The synchronous interlocking oil cylinder of control.
The purpose of the present invention can be reached by following measure：It is a kind of can cross-over control synchronous interlocking oil cylinder, it is wrapped
Cylinder barrel, the rear end connection bonnet of cylinder barrel are included, cylinder barrel inside is provided with piston rod, protecgulum is connected on the front end of cylinder barrel and piston rod, its
The front end connection valve block of piston rod is characterised by, valve block is provided with the first hydraulic fluid port, the second hydraulic fluid port, the 3rd hydraulic fluid port, the 4th hydraulic fluid port, valve
Check valve is fitted with block, the first oil port of valve block is provided with joint, and embedded one-way throttle valve, by being connected with joint screw thread
One-way throttle valve is spacing in the hydraulic fluid port screw thread of the first oil port, and one-way throttle valve can small range shifting in the hydraulic fluid port screw thread
It is dynamic；Piston rod inner connects gland；Gland and piston rod inner are provided with guide rod, and guide rod is connected with bonnet；Cylinder barrel, bonnet and piston
Rodless cavity is formed between bar, rod chamber is formed between cylinder barrel and piston rod, plunger cavity is formed between piston rod and guide rod, wherein having
Rod cavity is equal with the active area of plunger cavity；First hydraulic fluid port is connected by one-way throttle valve, check valve, the first oil circuit and rodless cavity
It is logical；Second hydraulic fluid port is connected by the second oil circuit with plunger cavity；3rd hydraulic fluid port is connected by the 3rd oil circuit with rod chamber, the 4th hydraulic fluid port
It is connected by the 4th oil circuit with check valve.
In order to further realize the purpose of the present invention, equipped with the 4th O-ring, the 5th O-shaped between described cylinder barrel and bonnet
Circle, equipped with guide ring, axle sealing ring, dust ring between protecgulum and piston rod, the first O-ring is housed between protecgulum and cylinder barrel；
Between piston rod and cylinder barrel the second O-ring is provided with equipped with hole sealing ring, support ring, the junction of piston rod and valve block；Joint
Sealed between valve block using combination mat；Equipped with axle circle and the 3rd O-ring between gland and piston rod.
The present invention can produce following good effect compared with the prior art：The present invention has following four big advantages：One, pass through oil
Cylinder constant volume is cross interconnected, it is ensured that two oil cylinder absolute synchronizations；Two, inserting check valve in oil cylinder inside of the present invention, oil cylinder fortune
When row arrives optional position, working connection is disconnected, can ensure that oil cylinder is maintained at stationary state by the zero leakage principle of check valve, by
Hydraulic lock substitutes mechanical lock, and because check valve is inserted into inside oil cylinder, if oil pipe pipeline is quick-fried during equipment is reruned
Split, check valve can automatic running, realize mechanical lock function, prevent unexpected security incident, play the explosion-proof effect of pipeline；
Three, one-way throttle valve built in oil cylinder of the present invention, ensure that oil cylinder does not throttle when stretching acts on, pressure release throttles when falling after rise, plays fast
Speed is stretched out, slow steady withdrawal, and preventing from quickly falling causes security incident or device damage.Four, oil cylinder integrated level of the present invention
Height, external synchronous pulley structure and mechanical lock mechanism can be cancelled, simplify equipment adjustment, reduce cost.
Application：Two oil cylinders need to run simultaneously and start and stop and can need latched position one at an arbitrary position
Occasion, such as：Lift bench etc.
Brief description of the drawings：
Fig. 1 is the structural representation of the present invention；
Fig. 2 is Fig. 1 side view；
Fig. 3 is the action principle figure of two oil cylinders when the present invention uses.
Embodiment：The embodiment of the present invention is elaborated below in conjunction with the accompanying drawings：
Embodiment：It is a kind of can cross-over control synchronous interlocking oil cylinder（Referring to Fig. 1, Fig. 2）, it includes cylinder barrel 4, cylinder barrel 4
Rear end connects bonnet 1, and piston rod is provided with equipped with the 4th O-ring 17, the 5th O-ring 22, the inside of cylinder barrel 4 between cylinder barrel 4 and bonnet 1
5, protecgulum 6 is connected on the front end of cylinder barrel 4 and piston rod 5, equipped with guide ring 13, axle sealing ring between protecgulum 6 and piston rod 5
14th, dust ring 15, the first O-ring 16 is housed between protecgulum 6 and cylinder barrel 4；Hole sealing ring is housed between piston rod 5 and cylinder barrel 4
11st, support ring 12, the front end of piston rod 5 are bolted valve block 7, and junction is provided with the second O-ring 18；Valve block 7 is provided with
First hydraulic fluid port 101, the second hydraulic fluid port 102, the 3rd hydraulic fluid port 103, the 4th hydraulic fluid port 104, check valve 23 is fitted with valve block 7, valve block 7
Joint 9, and embedded one-way throttle valve 8 are provided with first hydraulic fluid port 101, it is by being threadedly coupled with joint 9 that one-way throttle valve 8 is spacing
In the hydraulic fluid port screw thread at the first hydraulic fluid port 101, one-way throttle valve 8 small range can move in the hydraulic fluid port screw thread；Joint 9 and valve block
Sealed between 7 using combination mat 26；Gland 2 is connected through a screw thread inside piston rod 5；Used between gland 2 and piston rod 5 equipped with axle
The O-ring 20 of circle 21 and the 3rd；Gland 2 and the inside of piston rod 5 are provided with guide rod 3, and guide rod 3 is connected with bonnet 1 by screw thread.Cylinder barrel 4,
Rodless cavity 24 is formed between bonnet 1 and piston rod 5, rod chamber 25, piston rod 5 and guide rod 3 are formed between cylinder barrel 4 and piston rod 5
Between form plunger cavity 27, wherein rod chamber 25 is equal with the active area of plunger cavity 27.First hydraulic fluid port 101 passes through one-way throttle
Valve 8, check valve 23, the first oil circuit 201 connect with rodless cavity 24；Second hydraulic fluid port 102 is connected by the second oil circuit 202 with plunger cavity 27
It is logical；3rd hydraulic fluid port 103 is connected by the 3rd oil circuit 203 with rod chamber 25.4th hydraulic fluid port 104 is by the 4th oil circuit 204 and unidirectionally
Valve 23 is connected.
Operation principle：
The synchronous interlocking oil cylinder of two present invention is subjected to pipeline connection by Fig. 3 signals, by the second oil of wherein one oil cylinder
The 102, the 3rd hydraulic fluid port 103 of mouth is connected by pipeline with the 3rd hydraulic fluid port 103, the second hydraulic fluid port 102 of another bar of oil cylinder respectively, will wherein
First hydraulic fluid port 101 of one oil cylinder and the first hydraulic fluid port 101 of another oil cylinder are connected by pipeline with power unit oil-out；Will
4th hydraulic fluid port 104 of wherein one bar oil cylinder and the 4th hydraulic fluid port 104 of another bar of oil cylinder are connected with power unit control mouth.By first
The logical oil of hydraulic fluid port 101, fluid enters the rodless cavity 24 of two cylinders by one-way throttle valve 8, check valve 23, the first oil circuit 201, now single
It is positive logical oil to choke valve 8, does not play throttling action.The piston rod 5 of two cylinders while the motion that is pressurized, by the oil in rod chamber 25
Liquid is pressed into the second hydraulic fluid port 102 of another bar of oil cylinder and pressed by the second oil circuit 202 by the 3rd oil circuit 203 and the 3rd hydraulic fluid port 103
Enter plunger cavity 27.Because rod chamber 25 is equal with the active area of plunger cavity 27 so that rodless cavity 24, the rod chamber of two oil cylinders
25th, the volume change of plunger cavity 27 is equal respectively.So as to realize absolute synchronization.After oil cylinder runs to some desired location, first
Hydraulic fluid port 101 stops logical oil, and now check valve 23 is closed, and now two in-oil cylinder fluid are in completely enclosed state, can not be outer
Let out, oil cylinder locking.When needing oil cylinder to fall after rise, by the logical oil of the 4th hydraulic fluid port 104 of two bars of oil cylinders, check valve 23 is opened, piston rod
5 are fallen after rise under external force, and the fluid in plunger cavity 27 is pushed back to the 3rd hydraulic fluid port of another bar of oil cylinder by the second hydraulic fluid port 102
103 and rod chamber 25 is pressed into, at the same time, the fluid in rodless cavity 24 can be passed through check valve 23, one-way throttle valve by piston rod 5
8th, the first hydraulic fluid port 101 pushes back fuel tank.Now one-way throttle valve 8 works, and plays throttling action.
The present invention is not limited to above-mentioned embodiment, using the structure identical or close with the above embodiment of the present invention, and
Other structures design is obtained, within protection scope of the present invention.
Claims (2)
1. it is a kind of can cross-over control synchronous interlocking oil cylinder, it includes cylinder barrel（4）, cylinder barrel（4）Rear end connection bonnet（1）, cylinder
Cylinder（4）Inside is provided with piston rod（5）, cylinder barrel（4）Front end and piston rod（5）Upper connection protecgulum（6）, it is characterised in that piston rod
（5）Front end connection valve block（7）, valve block（7）It is provided with the first hydraulic fluid port（101）, the second hydraulic fluid port（102）, the 3rd hydraulic fluid port（103）、
4th hydraulic fluid port（104）, valve block（7）On be fitted with check valve（23）, valve block（7）The first hydraulic fluid port（101）Place is provided with joint（9）,
And embedded one-way throttle valve（8）, by with joint（9）It is threadedly coupled one-way throttle valve（8）It is spacing in the first hydraulic fluid port（101）Place
Hydraulic fluid port screw thread in, one-way throttle valve（8）Can small range movement in the hydraulic fluid port screw thread；Piston rod（5）Inside connection gland
（2）；Gland（2）And piston rod（5）Inside is provided with guide rod（3）, guide rod（3）With bonnet（1）It is connected；Cylinder barrel（4）, bonnet（1）With
Piston rod（5）Between form rodless cavity（24）, cylinder barrel（4）And piston rod（5）Between form rod chamber（25）, piston rod（5）With
Guide rod（3）Between form plunger cavity（27）, wherein rod chamber（25）With plunger cavity（27）Active area it is equal；First hydraulic fluid port
（101）Pass through one-way throttle valve（8）, check valve（23）, the first oil circuit（201）With rodless cavity（24）Connection；Second hydraulic fluid port（102）
Pass through the second oil circuit（202）With plunger cavity（27）Connection；3rd hydraulic fluid port（103）Pass through the 3rd oil circuit（203）With rod chamber（25）
Connection, the 4th hydraulic fluid port（104）Pass through the 4th oil circuit（204）With check valve（23）It is connected.
2. it is according to claim 1 it is a kind of can cross-over control synchronous interlocking oil cylinder, it is characterised in that described cylinder barrel（4）
And bonnet（1）Between the 4th O-ring is housed（17）, the 5th O-ring（22）, protecgulum（6）And piston rod（5）Between guide ring is housed
（13）, axle sealing ring（14）, dust ring（15）, protecgulum（6）And cylinder barrel（4）Between the first O-ring is housed（16）；Piston rod
（5）And cylinder barrel（4）Between hole sealing ring is housed（11）, support ring（12）, piston rod（5）With valve block（7）Junction be provided with
Second O-ring（18）；Joint（9）With valve block（7）Between use combination mat（26）Sealing；Gland（2）And piston rod（5）Between fill
There is axle circle（21）And the 3rd O-ring（20）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611094537.4A CN106438564B (en) | 2016-12-02 | 2016-12-02 | It is a kind of can cross-over control synchronous interlocking oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611094537.4A CN106438564B (en) | 2016-12-02 | 2016-12-02 | It is a kind of can cross-over control synchronous interlocking oil cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106438564A CN106438564A (en) | 2017-02-22 |
| CN106438564B true CN106438564B (en) | 2017-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611094537.4A Active CN106438564B (en) | 2016-12-02 | 2016-12-02 | It is a kind of can cross-over control synchronous interlocking oil cylinder |
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| CN (1) | CN106438564B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109502165B (en) * | 2018-11-21 | 2023-11-07 | 中国船舶重工集团公司第七一九研究所 | Axial interlocking device for front cover and rear cover of cylinder |
| CN112096673B (en) * | 2020-09-08 | 2022-08-16 | 武汉华液传动制造有限公司 | High-precision intelligent position and volume interlocking synchronization system and use method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2769501B2 (en) * | 1993-09-22 | 1998-06-25 | エスエムシー株式会社 | Separate type hydraulic cylinder |
| JPH08261208A (en) * | 1995-01-23 | 1996-10-08 | Ckd Corp | Complex actuator |
| JP2004316668A (en) * | 2003-04-11 | 2004-11-11 | Tcm Corp | Cylinder unit and loading/unloading vehicle with cylinder unit |
| CN102287416A (en) * | 2011-09-01 | 2011-12-21 | 无锡市长江液压缸厂 | Numeric hydraulic cylinder |
| CN105387021A (en) * | 2015-12-25 | 2016-03-09 | 河海大学常州校区 | Built-in guide oil cylinder |
| CN206221412U (en) * | 2016-12-02 | 2017-06-06 | 王树声 | It is a kind of can cross-over control synchronous interlocking oil cylinder |
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2016
- 2016-12-02 CN CN201611094537.4A patent/CN106438564B/en active Active
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| CN106438564A (en) | 2017-02-22 |
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Effective date of registration: 20230922 Address after: Room 606, Building A, Incubator of Yeda Zhigu Haichuang Park, No. 300 Changjiang Road, Yantai Area, China (Shandong) Free Trade Pilot Zone, Yantai City, Shandong Province, 265503 Patentee after: Haoli Machinery (Yantai) Co.,Ltd. Address before: 264000, No. four, 4 Street, Chu Feng, Zhifu District, Shandong, Yantai Patentee before: Wang Shusheng |
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