CN105526201B - A kind of oil cylinder synchronization structure that can realize precise synchronization control - Google Patents
A kind of oil cylinder synchronization structure that can realize precise synchronization control Download PDFInfo
- Publication number
- CN105526201B CN105526201B CN201610062151.9A CN201610062151A CN105526201B CN 105526201 B CN105526201 B CN 105526201B CN 201610062151 A CN201610062151 A CN 201610062151A CN 105526201 B CN105526201 B CN 105526201B
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- CN
- China
- Prior art keywords
- oil cylinder
- drag
- line
- directive wheel
- connecting rod
- Prior art date
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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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/22—Synchronisation of the movement of two or more servomotors
-
- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
- F15B2211/7107—Multiple output members, e.g. multiple hydraulic motors or cylinders the output members being mechanically linked
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/76—Control of force or torque of the output member
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/78—Control of multiple output members
- F15B2211/782—Concurrent control, e.g. synchronisation of two or more actuators
Abstract
The present invention discloses a kind of oil cylinder synchronization structure that can realize precise synchronization control comprising at least two oil cylinders, and the connecting rod for transmitting pulling force；Further include at least one directive wheel, at least one drag-line and guide wheel bracket；Connecting rod one end is fixedly connected with guide wheel bracket；Directive wheel rotation connection is installed on guide wheel bracket, and drag-line is across being wound on directive wheel, and drag-line both ends are separately connected the piston rod of an oil cylinder.In application, drag-line will link into an integrated entity positioned at the two of directive wheel both sides oil cylinders, in oil cylinder compression or force-extension, when both sides, there is difference in oil cylinder stroke, then drag-line can occur play or drive directive wheel rotation, to realize the balance of power so that both sides stroke is complementary, that is, achievees the purpose that oil cylinder synchronous control.The present invention utilizes simple structure design, realizes the precise synchronization control of Multi-cylinder, significant effect, while cost substantially reduces.
Description
Technical field
The present invention relates to the oil cylinder control technology field in engineering machinery, especially one kind capable of realizing precise synchronization control
Oil cylinder synchronization structure.
Background technology
Oil cylinder also known as hydraulic cylinder, the effect in hydraulic system are that hydraulic energy is changed into mechanical energy, so that component is realized straight
Line moves back and forth.
Oil cylinder is widely used in engineering machinery field, double oil cylinder simultaneous techniques in recent years as important Force transmission parts
It can realize that double oil cylinder strokes are equal to a certain extent, meet certain requirement of engineering.But influence the factor that double oil cylinders synchronize
Very much, such as in oil cylinder leakage, hydraulic slip, fluid it is mixed into air, foozle, frictional force, so as to cause double oil cylinder strokes
It differs, deviation occurs, seriously affect normal work, when both sides deviation of stroke is excessive, or even the generation of the accidents such as danger occur.
Existing double oil cylinder simultaneous techniques ensure the synchronization of double oil cylinders usually from hydraulic control strategy, as specification is attached
Shown in Fig. 1, to realize the synchronization of two oil cylinders, the oil inlet of two oil cylinders and oil outlet are respectively communicated with, the moment keeps both sides
Oil cylinder working-pressure is identical, and so under external force, in double oil cylinder drawing process, the stroke that theoretically two side cylinders stretch out is consistent
, that is, realize double oil cylinder synchronous controls.
But due to that there are various factors such as oil cylinder leakages, still can not ensure two in the case of both sides oil cylinder working-pressure is identical
Skidding journey is equal, i.e., actually bilateral oil cylinder cannot achieve real synchronous control.
To solve the above problems, the prior art respectively increases a solenoid valve at the oil inlet of two oil cylinders, when double oil cylinders
When appearance stroke difference is asynchronous, you can individually to control the flexible of some oil cylinder by solenoid valve, by artificially adjusting
To make up double oil cylinder asynchrony phenomenons.Actually this artificial adjusting method can only alleviate asynchrony phenomenon, because frictional force
In the presence of two side cylinders are still that cannot achieve synchronous control.And when both sides oil cylinder stroke difference is more than tolerance permitted range,
With regard to need it is artificial adjust, i.e., in oil cylinder whole work process, what this artificial adjusting was intermittently present, significantly work delays into
Degree, influences work quality.
Due to can not accurately realize double oil cylinder synchronous controls, also have in the prior art double using the replacement of one big specification cylinder
The scheme of oil cylinder controls the flexible of single oil cylinder, avoid double oil cylinder synchronous control problems, but oil cylinder cost then greatly increases.
Invention content
The technical problem to be solved in the present invention is：Pass through the knot between the multiple oil cylinders of change and between oil cylinder and load
Structure relationship so that each oil cylinder remains travel synchronization in compression situation or force-extension.
The technical solution that the present invention takes is specially：A kind of oil cylinder synchronization structure that can realize precise synchronization control, packet
Include at least two oil cylinders, and the connecting rod for transmitting pulling force；
Further include at least one directive wheel, at least one drag-line and guide wheel bracket；Connecting rod one end, which is fixedly connected, leads
To wheel support；
Directive wheel rotation connection is installed on guide wheel bracket, and drag-line is across being wound on directive wheel, and drag-line both ends connect respectively
Connect the piston rod of an oil cylinder.
In use, drag-line will link into an integrated entity positioned at the two of directive wheel both sides oil cylinders, in oil cylinder compression or external force
When stretching, when both sides, there is difference in oil cylinder stroke, then drag-line can occur play or drive directive wheel rotation, to realize the flat of power
Weighing apparatus so that both sides stroke is complementary, that is, achievees the purpose that oil cylinder synchronous control.
As a kind of embodiment, oil cylinder and connecting rod quantity are all 2 in the present invention, and oil cylinder and connecting rod, which are located at, to be led
To the both sides of wheel.The both sides can be upper and lower both sides or the left and right sides, can realize that the transmission of connection stick force act as base
It is accurate.
As another embodiment, the quantity of directive wheel and drag-line is all 2 in the present invention；Two directive wheels are co-axially mounted
In on guide wheel bracket；Each drag-line is respectively across around a directive wheel, and two drag-lines are located at the end of the same side and connect the same oil
The piston rod of cylinder.In the case that this design is adapted to oil cylinder load difference, single directive wheel or drag-line member stress are avoided
It is excessive, while cost can be reduced.
Preferably, the directive wheel uses pulley, drag-line to use steel wire rope or chain.Directive wheel can also use gear,
Correspondingly, form of the drag-line using rack or chain, in this way when difference occur in double oil cylinder strokes, rack can band moving gear turn
It is dynamic, to realize the balance of power, reach synchronous purpose.
Beneficial effects of the present invention are：
1, the precise synchronization control of double oil cylinders or Multi-cylinder can be achieved, it is simple in structure, but significant effect；
2, it is not necessary that the various liquid controling elements such as solenoid valve, balanced valve are arranged, oil cylinder control strategy is simplified, cost is reduced；
3, without artificially being adjusted, it is greatly improved operating efficiency, improves work quality, saves human cost；
In addition, the solution of the present invention has versatility, typicalness, solution can refer to similar to synchronous control problem is related to.
It is not only the synchronous control of double oil cylinders, for Multi-cylinder synchronous control, the structural shape of the present invention can also be used, such as needed
The quantity of directive wheel, connecting rod and drag-line is adjusted.
Description of the drawings
Fig. 1 show existing double oil cylinder Principle of Synchronic Control schematic diagrames；
Fig. 2 show existing double cylinder structure schematic diagrames；
Fig. 3 show double cylinder structure schematic diagrames of an embodiment of the present invention；
Fig. 4 show the dimensional structure diagram of another embodiment.
Specific implementation mode
It is further described below in conjunction with the drawings and specific embodiments.
The prior art of Fig. 1 and Fig. 2 cannot achieve the synchronous control of double oil cylinders.
With reference to figure 3 and Fig. 4, the present invention can realize the oil cylinder synchronization structure of precise synchronization control, including at least two oil
Cylinder 5,6, and the connecting rod 10 for transmitting pulling force；
Further include at least one directive wheel 8, at least one drag-line 7 and guide wheel bracket 9；10 one end of connecting rod, which is fixed, to be connected
Guide wheel bracket 9, other end connected load or external force application mechanism are connect, for transmitting pulling force；
The rotation connection of directive wheel 8 is installed on guide wheel bracket 9, and drag-line 7 is across being wound on directive wheel 8, and 7 both ends of drag-line point
Not Lian Jie an oil cylinder 5,6 piston rod.
The present invention is closed by the structure between the multiple oil cylinders of change and between oil cylinder and load or external force application mechanism
System so that each oil cylinder remains travel synchronization in compression situation or force-extension.In use, drag-line is by position
Two oil cylinders in directive wheel both sides link into an integrated entity, in oil cylinder compression or force-extension, when both sides oil cylinder stroke occurs
Difference, then play can occur for drag-line or drive directive wheel rotates, to realize the balance of power so that both sides stroke is complementary, that is, reaches
To the purpose of oil cylinder synchronous control.
Embodiment one
In embodiment shown in Fig. 3, oil cylinder 5,6 and 10 quantity of connecting rod are all 2, and oil cylinder and connecting rod, which are located at, to be led
To the both sides up and down of wheel 8, to realize the transmission of power.
Directive wheel 8 uses pulley, drag-line to use steel wire rope or chain.In this way when difference occur in double oil cylinder strokes, drag-line
The rotation of play and pulley on pulley can compensate the difference of double oil cylinder strokes, realize the balance of power, synchronous to reach
Purpose.
Embodiment two
In embodiment shown in Fig. 4, the quantity of directive wheel and drag-line is all 2；Two directive wheels are coaxially installed on guiding
On wheel support；Each drag-line is respectively across around a directive wheel, and two drag-lines are located at the end of the same side and connect the work of the same oil cylinder
Stopper rod.In the case that this design is adapted to oil cylinder load difference, avoid single directive wheel or drag-line member stress excessive, together
When can reduce cost.
Further, also more guiding can be arranged on the same guide wheel bracket in the magnitude of load according to oil cylinder
Wheel, corresponding more drag-lines of arrangement are connected to two side cylinders, can equally achieve the purpose that synchronous control.
To sum up, the present invention utilizes simple structure design, and the precise synchronization for realizing Multi-cylinder controls, significant effect, together
Shi Chengben is substantially reduced.It is similar to be related to synchronous control problem and can refer to the above embodiment of the present invention being solved.Such as more
When oil cylinder synchronizes control, the quantity of directive wheel, connecting rod and drag-line can be adjusted as needed.
Claims (5)
1. a kind of oil cylinder synchronization structure that can realize precise synchronization control, including oil cylinder, and the connection for transmitting pulling force
Bar；It is characterized in that：
Further include at least one directive wheel, at least one drag-line and guide wheel bracket；Connecting rod one end is fixedly connected with directive wheel
Holder, the connecting rod other end connect external load；
Oil cylinder quantity is 2, and cylinder block position is fixed, and oil cylinder and connecting rod are located at the both sides of directive wheel；
Directive wheel rotation connection is installed on guide wheel bracket, and drag-line is across being wound on directive wheel, and drag-line both ends are separately connected one
The piston rod of a oil cylinder so that directive wheel position can be driven with the retraction of cylinder piston rod and towards cylinder movement, together by drag-line
When connecting rod drive external load towards cylinder movement.
2. the oil cylinder synchronization structure according to claim 1 that can realize precise synchronization control, it is characterized in that：Connecting rod number
Amount is 2.
3. the oil cylinder synchronization structure according to claim 1 or 2 that can realize precise synchronization control, it is characterized in that：It is oriented to
The quantity of wheel and drag-line is all 2；Two directive wheels are coaxially installed on guide wheel bracket；Each drag-line is oriented to across around one respectively
Wheel, and two drag-lines are located at the end of the same side and connect the piston rod of the same oil cylinder.
4. the oil cylinder synchronization structure according to claim 1 that can realize precise synchronization control, it is characterized in that：The guiding
Wheel uses pulley, drag-line to use steel wire rope or chain.
5. the oil cylinder synchronization structure according to claim 1 that can realize precise synchronization control, it is characterized in that：Directive wheel is adopted
With gear, drag-line uses rack or chain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610062151.9A CN105526201B (en) | 2016-01-29 | 2016-01-29 | A kind of oil cylinder synchronization structure that can realize precise synchronization control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610062151.9A CN105526201B (en) | 2016-01-29 | 2016-01-29 | A kind of oil cylinder synchronization structure that can realize precise synchronization control |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105526201A CN105526201A (en) | 2016-04-27 |
| CN105526201B true CN105526201B (en) | 2018-08-28 |
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ID=55768628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610062151.9A Active CN105526201B (en) | 2016-01-29 | 2016-01-29 | A kind of oil cylinder synchronization structure that can realize precise synchronization control |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85108176A (en) * | 1985-11-07 | 1987-05-13 | 贵州省毕节地区农业机械研究所 | Fleet wheel hydraulic pressure method for synchronous and energy-conserving hydraulic baling press |
| JP3040061B2 (en) * | 1995-03-28 | 2000-05-08 | 重秋 軍司 | Clothes rod hanging tool and clothesline |
| CN2582836Y (en) * | 2002-06-28 | 2003-10-29 | 金洪信 | Synchronous driving device for wallboard machine |
| CN1818327A (en) * | 2006-02-28 | 2006-08-16 | 彭利 | Reciprocating petroleum beam-pumping unit with hydraulic transmission |
| JP2008063978A (en) * | 2006-09-05 | 2008-03-21 | Ishida Sangyo Kk | Hand pump device |
| CN202465131U (en) * | 2011-11-30 | 2012-10-03 | 徐州天地重型机械制造有限公司 | Synchronous telescopic device |
| CN205388053U (en) * | 2016-01-29 | 2016-07-20 | 徐工集团工程机械股份有限公司 | Can realize synchronous structure of hydro -cylinder of fine synchronization control |
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