CN107504014A - A kind of telescopic two-stage double acting assembled hydraulic cylinder - Google Patents
A kind of telescopic two-stage double acting assembled hydraulic cylinder Download PDFInfo
- Publication number
- CN107504014A CN107504014A CN201710949540.8A CN201710949540A CN107504014A CN 107504014 A CN107504014 A CN 107504014A CN 201710949540 A CN201710949540 A CN 201710949540A CN 107504014 A CN107504014 A CN 107504014A
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- Prior art keywords
- level
- piston
- oil outlet
- stage
- cavity
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- 238000007789 sealing Methods 0.000 claims abstract description 38
- 239000000428 dust Substances 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 208000002925 dental caries Diseases 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 30
- 239000010720 hydraulic oil Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- F15B15/08—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
- F15B15/08—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
- F15B15/1447—Pistons; Piston to piston rod 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
- F15B15/20—Other details, e.g. assembly with regulating devices
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention discloses a kind of telescopic two-stage double acting assembled hydraulic cylinder, and it includes 4 cavitys of two-stage protecgulum, two-stage piston, two-stage piston rod, two-stage cylinder barrel and formation, its one-level cylinder barrel（12）With first stage piston bar（11）Between be provided with first stage piston（14）, one-level cylinder assembly is provided with into oil outlet A, B, two level bonnet（24）It is provided with into oil outlet D, two level protecgulum（3）It is provided with into oil outlet C, the oil outlet that enters of the first cavity is that the oil outlet that enters of the second cavity is that the oil outlet that enters of the 3rd cavity is into oil outlet B, and the oil outlet that enters of the 4th cavity is into oil outlet A into oil outlet C into oil outlet D.First stage piston（14）Inside it is provided with 2 sealing rings, second piston（23）Inside it is provided with 2 sealing rings.The present invention realizes the two kinds of loads of an oil cylinder pushing, and load sequence of movement is controllable, simplifies overall structure, saves hydraulic cylinder installing space, saves equipment manufacturing costs, load height is concentric, securely and reliably.
Description
Technical field：
The present invention relates to a kind of telescopic two-stage double acting assembled hydraulic cylinder, belong to hydraulic cylinder technical field.
Background technology：
At present, need two kinds of drive to load to up to specified location under some conditions, certain position be present between both loads
Put relation, it is desirable to first promote one-level load, one-level load can drive secondary loads to move, and secondary loads are in one-level load movement
Individually moved again on the basis of stroke, two-stage load can move alone, and be controlled by single oil circuit.Complete
This action request typically uses following design at present：It is another with two kinds of hydraulic cylinders, a kind of hydraulic cylinder control one-level load
Hydraulic cylinder controls secondary loads, and both hydraulic cylinders can be attached with structural member, ensure relative position relationship.With top
There is some shortcomings and drawback in case, two kinds of hydraulic cylinders are not on the same axis, it is impossible to ensure same during two-stage load running
Axle degree, structure unbalance loading can be caused, gently then cause sealing ring eccentric wear, seal failure produces oil leak, heavy then external structure is caused brokenly
It is bad, influence to use；It is attached simultaneously using two kinds of hydraulic cylinders, certainly will radially or axially increasing size on direction, with
Ensure the installing space of two kinds of oil cylinders.
The content of the invention：
A kind of realize is provided and promotes load two-stage it is an object of the invention to overcome the shortcomings of above-mentioned prior art, action is suitable
Sequence is controllable, simplifies overall structure, saves hydraulic cylinder installing space, saves equipment manufacturing costs, load height is concentric, securely and reliably
Telescopic two-stage double acting assembled hydraulic cylinder.
The purpose of the present invention can be reached by following measure：A kind of telescopic two-stage double acting assembled hydraulic cylinder, its
Including one-level cylinder assembly, two level cylinder assembly, one-level cylinder assembly is connected and composed by one-level cylinder barrel, one-level bonnet, secondary cylinder
Cartridge module is connected and composed by first stage piston bar, two level bonnet, it is characterised in that is provided with first stage piston, one-level in one-level cylinder assembly
Piston is fixed on first stage piston bar, and second piston, second piston connection second piston rod, two level are provided with two level cylinder assembly
Protecgulum is enclosed on outside second piston rod；Form the first cavity between two level bonnet, second piston and first stage piston bar, second piston,
Form the second cavity between first stage piston bar and two level protecgulum, one-level bonnet, one-level cylinder barrel, first stage piston bar and first stage piston it
Between formed the 3rd cavity, between one-level cylinder barrel, first stage piston, first stage piston bar and one-level protecgulum formed the 4th cavity, first-stage cylinder
Cylinder is covered to be provided with into oil outlet B, two level protecgulum after being provided with into oil outlet A, one-level and is provided with into oil outlet C, is covered after two level
It is provided with into oil outlet D, the oil outlet that enters of the first cavity is that the oil outlet that enters of the second cavity is into oil outlet C into oil outlet D
The oil outlet that enters of three cavitys is into oil outlet B, and the oil outlet that enters of the 4th cavity is into oil outlet A, and first stage piston inwall is provided with the
Three sealing rings, first stage piston outer wall are provided with the 4th sealing ring, and second piston inwall is provided with the 7th sealing ring, and second piston outer wall is set
There is the 8th sealing ring.
In order to further realize the purpose of the present invention, the distance between described first stage piston and one-level protecgulum are S1, two
Level the distance between piston and two level protecgulum are S2, and the distance between one-level bonnet right side and two level bonnet right side are S3,
S3 ＞ S1.
In order to further realize the purpose of the present invention, described first stage piston is fixed on first stage piston bar by steel ball.
In order to further realize the purpose of the present invention, described one-level protecgulum inwall is provided with the first dust ring, the first sealing
Circle, the first guide ring, the sealing ring of cover outer wall second before one-level, one-level bonnet inwall are provided with the 3rd dust ring, the 9th sealing ring, the
Five guide rings, first stage piston outer wall are provided with the second guide ring, and two level protecgulum inwall is provided with the second dust ring, the 5th sealing ring, the
Three guide rings, cover outer wall is provided with the 6th sealing ring before two level, and second piston outer wall is provided with the 4th guide ring.
The present invention can produce following good effect compared with the prior art：Present hydraulic cylinder connects two kinds and loaded, two kinds
Relative status requirement is loaded with, each load is all individually controllable, and the present invention ties compared with the working condition of conventional hydraulic cylinder
Structure is compacter, reduces the quantity of hydraulic cylinder, reduces the quantity and difficulty of structural member, and concentricity is high.Two-stage liquid of the present invention
Cylinder pressure is provided with the oil inlet and outlet of four connection exterior lines, and the stretching of hydraulic cylinder two-stage, hydraulic pressure are realized by four oilhole controls
The two-stage piston rod of cylinder can arbitrarily stretch in the stroke of setting.The present invention realizes that a hydraulic cylinder drives two kinds of loads,
Two kinds of load actions are controllable, compact-sized, reduce connector, save equipment manufacturing costs, load movement is highly concentric, safely may be used
Lean on.
Brief description of the drawings：
Fig. 1 is the structural representation of the present invention；
Fig. 2 is that the first stage piston bar of the present invention and second piston rod extend and retract process schematic.
Embodiment：Embodiment of the invention below in conjunction with the accompanying drawings elaborates：
Embodiment：A kind of telescopic two-stage double acting assembled hydraulic cylinder（Referring to Fig. 1）, it includes one-level cylinder assembly, secondary cylinder
Cartridge module, one-level cylinder assembly are connected and composed by one-level cylinder barrel 12, one-level bonnet 18, and two level cylinder assembly is by first stage piston bar
11st, two level bonnet 24 connects and composes, and is provided with first stage piston 14 in one-level cylinder assembly, first stage piston 14 is fixed on one by steel ball
On level piston rod 11, second piston 23 is provided with two level cylinder assembly, second piston 23 connects second piston rod 13, two level protecgulum
3 are enclosed on outside second piston rod 13.Form the first cavity 29 between two level bonnet 24, second piston 23 and first stage piston bar 11, two
The second cavity 30, one-level bonnet 18, one-level cylinder barrel 12, one-level are formed between level piston 23, first stage piston bar 11 and two level protecgulum 3
The 3rd cavity 31, one-level cylinder barrel 12, first stage piston 14, first stage piston bar 11 and one are formed between piston rod 11 and first stage piston 14
The 4th cavity 32 is formed between level protecgulum 8, one-level cylinder barrel 12 is provided with into oil outlet A26, one-level bonnet 18 and is provided with into fuel-displaced
Hole B27, two level protecgulum 3 are provided with into oil outlet C25, and two level bonnet 24 is provided with into oil outlet D28, the disengaging of the first cavity 29
Oilhole be into oil outlet D28, the second cavity 30 enter oil outlet be into oil outlet C25, the 3rd cavity 31 enter oil outlet be into
Oil outlet B27, the oil outlet that enters of the 4th cavity 32 is to be provided with the first dust ring 5, first into oil outlet A26, the inwall of one-level protecgulum 8
Sealing ring 6, the first guide ring 10, the second sealing ring of outer wall 9 of one-level protecgulum 8, the inwall of one-level bonnet 18 be provided with the 3rd dust ring 33,
9th sealing ring 34, the 5th guide ring 35, the inwall of first stage piston 14 are provided with the 3rd sealing ring 15, and the outer wall of first stage piston 14 is provided with the
Four sealing rings 17, the second guide ring 16, the inwall of two level protecgulum 3 are provided with the second dust ring 1, the 5th sealing ring 2, the 3rd guide ring 4,
The outer wall of two level protecgulum 3 is provided with the 6th sealing ring 7, and the inwall of second piston 23 is provided with the 7th sealing ring 20, and the outer wall of second piston 23 is set
There are the 8th sealing ring 22, the 4th guide ring 21.The distance between first stage piston 14 and one-level protecgulum 8 are S1, second piston 23 with
The distance between two level protecgulum 3 is S2, and the distance between the right side of one-level bonnet 18 and the right side of two level bonnet 24 are S3, S3 ＞
S1。
The two-stage hydraulic cylinder of the present invention can connect two kinds of different loads, the size of load can difference can also phase
Together, can be depending on the size of hydraulic cylinder, two level protecgulum 3, two level bonnet 24 connect one-level load, and second piston rod 13 connects
Secondary loads.
One, stretches out process（With reference to figure 2）：
1st, first stage piston bar stretches out：Enter oil outlet B27 and enter hydraulic oil, in the effect of the 4th sealing ring 17 and the 3rd sealing ring 15
Under, first stage piston 14 drives all structural member stress in addition to one-level protecgulum 8 and one-level cylinder assembly to stretch out；
2nd, second piston rod stretches out：Enter oil outlet D28 and enter hydraulic oil, in the 8th sealing ring 22 and the work of the 7th sealing ring 20
Under, second piston 23 drives the stress of second piston rod 13 to stretch out；
Two, retraction processes（With reference to figure 2）：
1st, first stage piston bar is retracted：Enter oil outlet A26 and enter hydraulic oil, in the effect of the 4th sealing ring 17 and the 3rd sealing ring 15
Under, first stage piston 14 drives all structural member stress in addition to one-level protecgulum 8 and one-level cylinder assembly to retract；
2nd, second piston rod is retracted：Enter oil outlet C25 and enter hydraulic oil, in the 8th sealing ring 22 and the work of the 7th sealing ring 20
Under, second piston 23 drives the stress of second piston rod 13 to retract；
Embodiment above is only that the preferred embodiment of the present invention is described, and other preferred embodiments differ herein
One it is tired state, and not the scope of the present invention is defined, on the premise of design spirit of the present invention is not departed from, this area is common
The various modifications and improvement that engineers and technicians make to technical scheme, all should fall within claims of the present invention
In the protection domain of determination.
Claims (4)
1. a kind of telescopic two-stage double acting assembled hydraulic cylinder, it includes one-level cylinder assembly, two level cylinder assembly, one-level cylinder barrel
Component is by one-level cylinder barrel（12）, one-level bonnet（18）Connect and compose, two level cylinder assembly is by first stage piston bar（11）, two level bonnet
（24）Connect and compose, it is characterised in that be provided with first stage piston in one-level cylinder assembly（14）, first stage piston（14）It is fixed on one-level
Piston rod（11）On, it is provided with second piston in two level cylinder assembly（23）, second piston（23）Connect second piston rod（13）, two
Level protecgulum（3）It is enclosed on second piston rod（13）Outside；Two level bonnet（24）, second piston（23）With first stage piston bar（11）Between shape
Into the first cavity（29）, second piston（23）, first stage piston bar（11）With two level protecgulum（3）Between form the second cavity（30）,
One-level bonnet（18）, one-level cylinder barrel（12）, first stage piston bar（11）And first stage piston（14）Between formed the 3rd cavity（31）, one
Level cylinder barrel（12）, first stage piston（14）, first stage piston bar（11）And one-level protecgulum（8）Between formed the 4th cavity（32）, one-level
Cylinder barrel（12）It is provided with into oil outlet A（26）, one-level bonnet（18）It is provided with into oil outlet B（27）, two level protecgulum（3）It is provided with
Enter oil outlet C（25）, two level bonnet（24）It is provided with into oil outlet D（28）, the first cavity（29）The oil outlet that enters be into fuel-displaced
Hole D（28）, the second cavity（30）The oil outlet that enters be into oil outlet C（25）, the 3rd cavity（31）The oil outlet that enters be into fuel-displaced
Hole B（27）, the 4th cavity（32）The oil outlet that enters be into oil outlet A（26）, first stage piston（14）Inwall is provided with the 3rd sealing ring
（15）, first stage piston（14）Outer wall is provided with the 4th sealing ring（17）, second piston（23）Inwall is provided with the 7th sealing ring（20）, two
Level piston（23）Outer wall is provided with the 8th sealing ring（22）.
A kind of 2. telescopic two-stage double acting assembled hydraulic cylinder according to claim 1, it is characterised in that described one-level
Piston（14）With one-level protecgulum（8）The distance between be S1, second piston（23）With two level protecgulum（3）The distance between be S2,
One-level bonnet（18）Right side and two level bonnet（24）The distance between right side is S3, S3 ＞ S1.
A kind of 3. telescopic two-stage double acting assembled hydraulic cylinder according to claim 1, it is characterised in that described one-level
Piston（14）First stage piston bar is fixed on by steel ball（11）On.
A kind of 4. telescopic two-stage double acting assembled hydraulic cylinder according to claim 1, it is characterised in that described one-level
Protecgulum（8）Inwall is provided with the first dust ring（5）, the first sealing ring（6）, the first guide ring（10）, one-level protecgulum（8）Outer wall second
Sealing ring（9）, one-level bonnet（18）Inwall is provided with the 3rd dust ring（33）, the 9th sealing ring（34）, the 5th guide ring（35）, one
Level piston（14）Outer wall is provided with the second guide ring（16）, two level protecgulum（3）Inwall is provided with the second dust ring（1）, the 5th sealing ring
（2）, the 3rd guide ring（4）, two level protecgulum（3）Outer wall is provided with the 6th sealing ring（7）, second piston（23）Outer wall is led provided with the 4th
Xiang Huan（21）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710949540.8A CN107504014A (en) | 2017-10-13 | 2017-10-13 | A kind of telescopic two-stage double acting assembled hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710949540.8A CN107504014A (en) | 2017-10-13 | 2017-10-13 | A kind of telescopic two-stage double acting assembled hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107504014A true CN107504014A (en) | 2017-12-22 |
Family
ID=60700713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710949540.8A Pending CN107504014A (en) | 2017-10-13 | 2017-10-13 | A kind of telescopic two-stage double acting assembled hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107504014A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469556A (en) * | 2019-08-28 | 2019-11-19 | 重庆宏广机电工程有限公司 | A kind of fuel tank hydraulic cylinder |
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| CN105650059A (en) * | 2016-03-31 | 2016-06-08 | 江阴市洪腾机械有限公司 | Double-acting two-stage hydraulic cylinder |
| CN106969002A (en) * | 2017-04-10 | 2017-07-21 | 湖北工业大学 | Two-stage double-act-ing hydraulic J-Horner |
| CN207229507U (en) * | 2017-10-13 | 2018-04-13 | 烟台未来自动装备有限责任公司 | A kind of telescopic two-stage double acting assembled hydraulic cylinder |
-
2017
- 2017-10-13 CN CN201710949540.8A patent/CN107504014A/en active Pending
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|---|---|---|---|---|
| KR200326727Y1 (en) * | 2003-06-03 | 2003-09-19 | 서종배 | Telescopic cylinder |
| JP2009084054A (en) * | 2007-09-10 | 2009-04-23 | Kobelco Cranes Co Ltd | Telescopic boom |
| CN102400975A (en) * | 2011-11-24 | 2012-04-04 | 湖南特力液压有限公司 | Secondary stretching and retracting hydraulic cylinder and hydraulic equipment |
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| CN110469556A (en) * | 2019-08-28 | 2019-11-19 | 重庆宏广机电工程有限公司 | A kind of fuel tank hydraulic cylinder |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171222 |