CN105526201A - Oil cylinder synchronizing structure capable of achieving accurate synchronous control - Google Patents
Oil cylinder synchronizing structure capable of achieving accurate synchronous control Download PDFInfo
- Publication number
- CN105526201A CN105526201A CN201610062151.9A CN201610062151A CN105526201A CN 105526201 A CN105526201 A CN 105526201A CN 201610062151 A CN201610062151 A CN 201610062151A CN 105526201 A CN105526201 A CN 105526201A
- Authority
- CN
- China
- Prior art keywords
- oil cylinder
- guide wheel
- drag
- upper saw
- line
- 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
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Classifications
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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
- 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
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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
- 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
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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
- 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 invention discloses an oil cylinder synchronizing structure capable of achieving accurate synchronous control. The oil cylinder synchronizing structure capable of achieving accurate synchronous control comprises at least two oil cylinders and connecting rods used for transmitting pulling force. The oil cylinder synchronizing structure capable of achieving accurate synchronous control further comprises at least one guide wheel, at least one inhaul cable and a guide wheel support. One end of each connecting rod is fixedly connected with the guide wheel support. The guide wheel is rotatably connected to and installed on the guide wheel support. The inhaul cable is wound on the guide wheel, and the two ends of the inhaul cable are connected with piston rods of the two oil cylinders respectively. During application, the two oil cylinders located on the two sides of the guide wheel are connected into a whole through the inhaul cable, when the strokes of the oil cylinders on the two sides are different under the condition that the oil cylinders are contracted or stretched through external force, the inhaul cable can move or drive the guide wheel to rotate, so that force balance is achieved, complementation of the strokes on the two sides is achieved, and accordingly the purpose of synchronous control over the oil cylinders is achieved. According to the oil cylinder synchronizing structure capable of achieving accurate synchronous control, by means of simple structural design, accurate synchronous control over the multiple oil cylinders is achieved, the effect is remarkable, and meanwhile the cost is greatly reduced.
Description
Technical field
The present invention relates to the oil cylinder control technique field in engineering machinery, particularly a kind of oil cylinder synchronization structure that can realize precise synchronization and control.
Background technique
Oil cylinder, has another name called oil hydraulic cylinder, and the effect in hydraulic system changes hydraulic energy into mechanical energy, makes component realize straight reciprocating motion.
Oil cylinder, as important Force transmission parts, is widely used in engineering machinery field in recent years, and it is equal that two oil cylinder simultaneous techniques can realize two oil cylinder stroke to a certain extent, meets certain requirement of engineering.But the factor affecting two oil cylinder synchronous is a lot, as entrained air, foozle, frictional force etc. in oil cylinder leakage, hydraulic slip, fluid, thus cause two oil cylinder stroke not, there is deviation, have a strong impact on normal work, when both sides deviation of stroke is excessive, even there is the accident generations such as dangerous.
Existing pair of oil cylinder simultaneous techniques is generally ensure the synchronous of two oil cylinder from hydraulic control strategy, as shown in Figure of description 1, for realizing the synchronous of two oil cylinders, the filler opening of two oil cylinders is communicated with respectively with oil outlet, moment keeps both sides oil cylinder working-pressure identical, so under external force, in two oil cylinder drawing process, the stroke that two side cylinders stretch out in theory is consistent, namely realizes two oil cylinder synchronization control.
But owing to there is the various factorss such as oil cylinder leakage, still cannot ensure when both sides oil cylinder working-pressure is identical that both sides stroke is equal, namely in fact bilateral oil cylinder cannot realize real synchronization control.
For solving the problem, prior art respectively increases a solenoid valve at the filler opening place of two oil cylinders, when two oil cylinder occurs that stroke difference is asynchronous, namely can controlling separately the flexible of some oil cylinders by solenoid valve, making up two oil cylinder asynchrony phenomenon by artificially regulating.In fact this artificial regulating method can only alleviate asynchrony phenomenon, because the existence of frictional force, two side cylinders remain and cannot realize synchronization control.And when both sides oil cylinder stroke difference exceedes tolerance permitted range, just need artificial adjustment, namely in the whole working procedure of oil cylinder, this artificial adjustment intermittently exists, and work delays progress, affects workmanship greatly.
Due to two oil cylinder synchronization control accurately cannot be realized, also there is employing large gauge oil cylinder to replace the scheme of two oil cylinder in prior art, namely control the flexible of single oil cylinder, avoid two oil cylinder synchronization control problem, but oil cylinder cost then increases greatly.
Summary of the invention
The technical problem to be solved in the present invention is: by changing between multiple oil cylinder, and the structural relation between oil cylinder and load, makes each oil cylinder in compression situation or force-extension situation, remains travel synchronization.
The technological scheme that the present invention takes is specially: a kind of oil cylinder synchronization structure that can realize precise synchronization and control, comprises at least two oil cylinders, and for transmitting the connecting rod of pulling force;
Also comprise at least one upper saw pulley, at least one drag-line and guide wheel bracket; Connecting rod one end is fixedly connected with guide wheel bracket;
Upper saw pulley is rotationally connected and is installed on guide wheel bracket, and drag-line is across around on upper saw pulley, and drag-line two ends connect the piston rod of an oil cylinder respectively.
When applying, two oil cylinders being positioned at upper saw pulley both sides link into an integrated entity by drag-line, when oil cylinder compression or force-extension, when both sides there is difference in oil cylinder stroke, then can there is play or drive upper saw pulley to rotate in drag-line, thus realize equilibrium of forces, make both sides stroke complementary, namely reach the object of oil cylinder synchronization control.
As a kind of embodiment, in the present invention, oil cylinder and connecting rod quantity are all 2, and oil cylinder and connecting rod lay respectively at the both sides of upper saw pulley.Described both sides can be upper and lower both sides or the left and right sides, act as benchmark with the transmission that can realize connecting stick force.
As another kind of embodiment, in the present invention, the quantity of upper saw pulley and drag-line is all 2; Two upper saw pulleys are coaxially installed on guide wheel bracket; Each drag-line is respectively across around a upper saw pulley, and the end that two drag-lines are positioned at the same side connects the piston rod of same oil cylinder.This design can adapt to oil cylinder load different when, avoid single upper saw pulley or drag-line member stress excessive, can reduce costs simultaneously.
Preferably, described upper saw pulley adopts pulley, and drag-line adopts wire rope or chain.Upper saw pulley also can adopt gear, and accordingly, drag-line adopts the form of tooth bar or chain, and like this when difference appears in two oil cylinder stroke, tooth bar can rotate by driven gear, thus realizes equilibrium of forces, reaches synchronous object.
Beneficial effect of the present invention is:
The precise synchronization that 1, can realize two oil cylinder or Multi-cylinder controls, and structure is simple, but Be very effective;
2, without the need to arranging the various liquid controling element such as solenoid valve, equilibrium valve, simplifying oil cylinder control strategy, reducing cost;
3, without the need to artificially regulating, greatly can improve operating efficiency, improving workmanship, save human cost;
In addition, the solution of the present invention has versatility, typicalness, and the similar synchronization control problem that relates to all can refer to solution.Being not only the synchronization control of two oil cylinder, for Multi-cylinder synchronization control, also can adopting structural type of the present invention, as adjusted the quantity of upper saw pulley, connecting rod and drag-line as required.
Accompanying drawing explanation
Figure 1 shows that existing pair of oil cylinder Principle of Synchronic Control schematic diagram;
Figure 2 shows that existing pair of cylinder structure schematic diagram;
Figure 3 shows that two cylinder structure schematic diagram of an embodiment of the present invention;
Figure 4 shows that the perspective view of another kind of embodiment.
Embodiment
Further describe below in conjunction with the drawings and specific embodiments.
The prior art of Fig. 1 and Fig. 2 cannot realize the synchronization control of two oil cylinder.
With reference to figure 3 and Fig. 4, the present invention can realize the oil cylinder synchronization structure that precise synchronization controls, and comprises at least two oil cylinders 5,6, and for transmitting the connecting rod 10 of pulling force;
Also comprise at least one upper saw pulley 8, at least one drag-line 7 and guide wheel bracket 9; Connecting rod 10 one end is fixedly connected with guide wheel bracket 9, and the other end connected load or outside force application mechanism, for transmitting pulling force;
Upper saw pulley 8 is rotationally connected and is installed on guide wheel bracket 9, and drag-line 7 is across around on upper saw pulley 8, and drag-line 7 two ends connect the piston rod of an oil cylinder 5,6 respectively.
The present invention is by changing between multiple oil cylinder, and the structural relation between oil cylinder and load or outside force application mechanism, makes each oil cylinder in compression situation or force-extension situation, remains travel synchronization.When applying, two oil cylinders being positioned at upper saw pulley both sides link into an integrated entity by drag-line, when oil cylinder compression or force-extension, when both sides there is difference in oil cylinder stroke, then can there is play or drive upper saw pulley to rotate in drag-line, thus realize equilibrium of forces, make both sides stroke complementary, namely reach the object of oil cylinder synchronization control.
Embodiment one
In embodiment shown in Fig. 3, oil cylinder 5,6 and connecting rod 10 quantity are all 2, and oil cylinder and connecting rod lay respectively at the both sides up and down of upper saw pulley 8, with the transmission of realizable force.
Upper saw pulley 8 adopts pulley, and drag-line adopts wire rope or chain.Like this when difference appears in two oil cylinder stroke, the rotation of the play of drag-line on pulley and pulley can compensate the difference of two oil cylinder stroke, realizes equilibrium of forces, thus reaches synchronous object.
Embodiment two
In embodiment shown in Fig. 4, the quantity of upper saw pulley and drag-line is all 2; Two upper saw pulleys are coaxially installed on guide wheel bracket; Each drag-line is respectively across around a upper saw pulley, and the end that two drag-lines are positioned at the same side connects the piston rod of same oil cylinder.This design can adapt to oil cylinder load different when, avoid single upper saw pulley or drag-line member stress excessive, can reduce costs simultaneously.
Further, also at the magnitude of load according to oil cylinder, same guide wheel bracket can arrange more upper saw pulley, the corresponding more drag-line of layout is connected to two side cylinders, can reach the object of synchronization control equally.
To sum up, the present invention utilizes simple structural design, and the precise synchronization achieving Multi-cylinder controls, Be very effective, and cost reduces greatly simultaneously.The similar synchronization control problem that relates to all can refer to the above embodiment of the present invention and solves.During as carried out synchronization control for Multi-cylinder, can adjust the quantity of upper saw pulley, connecting rod and drag-line as required.
Claims (5)
1. can realize the oil cylinder synchronization structure that precise synchronization controls, comprise at least two oil cylinders, and for transmitting the connecting rod of pulling force; It is characterized in that:
Also comprise at least one upper saw pulley, at least one drag-line and guide wheel bracket; Connecting rod one end is fixedly connected with guide wheel bracket;
Upper saw pulley is rotationally connected and is installed on guide wheel bracket, and drag-line is across around on upper saw pulley, and drag-line two ends connect the piston rod of an oil cylinder respectively.
2. the oil cylinder synchronization structure that can realize precise synchronization and control according to claim 1, is characterized in that: oil cylinder and connecting rod quantity are all 2; Oil cylinder and connecting rod lay respectively at the both sides of upper saw pulley.
3. the oil cylinder synchronization structure that can realize precise synchronization and control according to claim 1 and 2, is characterized in that: the quantity of upper saw pulley and drag-line is all 2; Two upper saw pulleys are coaxially installed on guide wheel bracket; Each drag-line is respectively across around a upper saw pulley, and the end that two drag-lines are positioned at the same side connects the piston rod of same oil cylinder.
4. the oil cylinder synchronization structure that can realize precise synchronization and control according to claim 1, it is characterized in that: described upper saw pulley adopts pulley, drag-line adopts wire rope or chain.
5. the oil cylinder synchronization structure that can realize precise synchronization and control according to claim 1, it is characterized in that: upper saw pulley adopts gear, drag-line adopts tooth bar 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 true CN105526201A (en) | 2016-04-27 |
| CN105526201B CN105526201B (en) | 2018-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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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Citations (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 |
| JPH08257292A (en) * | 1995-03-28 | 1996-10-08 | Shigeaki Gunji | Clothespole hanging tool and clothespole |
| 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 |
-
2016
- 2016-01-29 CN CN201610062151.9A patent/CN105526201B/en active Active
Patent Citations (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 |
| JPH08257292A (en) * | 1995-03-28 | 1996-10-08 | Shigeaki Gunji | Clothespole hanging tool and clothespole |
| 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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|---|---|
| CN105526201B (en) | 2018-08-28 |
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