CN211820156U - Novel hydro-cylinder high accuracy synchro control equipment - Google Patents
Novel hydro-cylinder high accuracy synchro control equipment Download PDFInfo
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- CN211820156U CN211820156U CN202020258641.8U CN202020258641U CN211820156U CN 211820156 U CN211820156 U CN 211820156U CN 202020258641 U CN202020258641 U CN 202020258641U CN 211820156 U CN211820156 U CN 211820156U
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Abstract
The utility model relates to a novel hydro-cylinder high accuracy synchronous control equipment. The synchronous control equipment comprises an equipment oil tank, a piston connecting rod, a lead screw, a coupling, a speed reducing motor, a pair of electromagnetic valves, a pair of oil cylinders, a pair of pistons, a pair of piston rods and a plurality of lead screw nuts; the equipment oil tank is respectively communicated with the pair of oil cylinders through pipelines, and the pipelines are respectively provided with an electromagnetic valve; the pair of oil cylinders are internally provided with pistons respectively, the lower parts of the pair of pistons are connected with piston rods respectively, the pair of piston rods are connected with piston connecting rods together, the piston connecting rods are connected with a lead screw, the lead screw is fixed through a plurality of lead screw nuts, the lower part of the lead screw is connected with a coupler, and the lower part of the coupler is connected with a speed reducing motor. The utility model discloses a control two oil cylinder with the same size's oil extraction volume the same to indirectly reach the purpose of controlling two hydro-cylinder piston rods high synchronous operation all the time.
Description
Technical Field
The utility model relates to a novel hydro-cylinder high accuracy synchronous control equipment.
Background
In the prior art, in order to realize stable and high-precision synchronous control of a multi-cylinder lifting system, a hydraulic synchronous loop structure is generally selected, and a proportional servo valve with a real-time monitoring function and the like are adopted to realize accurate control of oil feeding amounts of two cylinders, so that the oil feeding amounts of the two cylinders are basically the same, the purpose of high synchronous operation of the two cylinders is achieved, the function of high parallel lifting of piston rods of the multiple cylinders is finally realized, and the synchronous error of the two cylinders is less than or equal to 0.1%. However, such valves with real-time monitoring and precise control functions are often expensive, and the manufacturing cost of the equipment is greatly increased. And the proportional servo valve is extremely delicate and expensive, has strict requirements on the use environment, and is extremely likely to be stuck due to slightly poor cleanness of the lubricating oil.
In addition, if an oil-taking throttling principle is adopted, the oil cylinders are synchronized by controlling the same oil-taking amount of the oil cylinders, but the scheme takes longer time when the oil cylinders ascend or descend, more labor and time are consumed in the debugging process, and the oil cylinder synchronization error is larger by 2% -5%. Other synchronous circuits such as a synchronous circuit adopting a synchronous valve or a synchronous circuit adopting a hydraulic synchronous motor have the running synchronous error of the multi-cylinder piston rod of 1.5 to 3 percent.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel hydro-cylinder high accuracy synchro control equipment, the oil extraction volume through controlling two with size hydro-cylinders is the same to indirectly reach the purpose of controlling two hydro-cylinder piston rods high synchronous operation all the time.
The technical scheme of the utility model is that: a novel oil cylinder high-precision synchronous control device comprises an equipment oil tank, a piston connecting rod, a lead screw, a coupler, a speed reducing motor, a pair of electromagnetic valves, a pair of oil cylinders, a pair of pistons, a pair of piston rods and a plurality of lead screw nuts;
the equipment oil tank is respectively communicated with the pair of oil cylinders through pipelines, and the pipelines are respectively provided with an electromagnetic valve;
the pair of oil cylinders are internally provided with pistons respectively, the lower parts of the pair of pistons are connected with piston rods respectively, the pair of piston rods are connected with piston connecting rods together, the piston connecting rods are connected with a lead screw, the lead screw is fixed through a plurality of lead screw nuts, the lower part of the lead screw is connected with a coupler, and the lower part of the coupler is connected with a speed reducing motor.
Furthermore, the pair of pistons are equal-size pistons, and the pair of oil cylinders are equal-size oil cylinders.
Furthermore, the speed reducing motor is a speed reducing motor with a brake.
The utility model has the advantages that: the method has the advantages that the high-precision synchronous operation of the piston rods of the two oil cylinders is indirectly obtained by utilizing the precise control of the oil discharge amount of the two oil cylinders with the same size under the conditions of not adopting expensive proportional servo valves and not losing the control precision, and the synchronous error rate is less than or equal to 0.1 percent, so that the functions of parallel and stable lifting of platforms and the like are realized all the time.
The utility model discloses use cost is low, and control accuracy simulates expensive proportional servo valve, converts the accurate control of proportional servo valve to the hydro-cylinder oil inlet volume to the accurate control of this set of equipment to hydro-cylinder oil extraction volume. In addition, the rotating speed of the oil discharge damping motor can be adjusted through the electric control system under the condition that the oil cylinder piston rod meets the synchronous precision, so that the running speed of the oil cylinder piston rod is controlled.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, 1 is an electromagnetic valve, 2 is an equipment oil tank, 3 is a piston, 4 is an oil cylinder, 5 is a piston connecting rod, 6 is a screw nut, 7 is a screw, 9 is a coupler and 10 is a speed reducing motor.
Detailed Description
A novel high-precision synchronous control device for oil cylinders comprises a device oil tank 2, a piston connecting rod 5, a lead screw 7, a coupler 9, a speed reducing motor 10, a pair of electromagnetic valves 1, a pair of oil cylinders 4, a pair of pistons 3, a pair of piston rods and a plurality of lead screw nuts 6;
the equipment oil tank 2 is respectively communicated with a pair of oil cylinders 4 through pipelines, and the pipelines are respectively provided with an electromagnetic valve 1;
the pair of oil cylinders 4 in set up piston 3 respectively, 3 lower parts of a pair of pistons connect the piston rod respectively, a pair of piston rod connect piston connecting rod 5 jointly, piston connecting rod 5 be connected with lead screw 7, lead screw 7 fixed through a plurality of screw-nut 6, lead screw 7 sub-unit connection shaft coupling 9, shaft coupling 9 sub-unit connection gear motor 10.
The pair of pistons 3 are equal-size pistons, and the pair of oil cylinders 4 are equal-size oil cylinders.
The speed reducing motor 10 is a speed reducing motor with a brake.
During operation, the oil inlet of the oil tank 2 of the equipment is filled with oil, and the oil outlet discharges oil. The discharged hydraulic oil enters an oil storage cavity of the oil cylinder 4 with the same size through a pipeline. The speed reducing motor 10 operates, the lead screw 7 axially displaces, the equal-size pistons 3 are driven to axially move to form oil storage cavities, the volumes of the oil storage cavities are further increased along with the further operation of the speed reducing motor 10 and the lead screw 7, and the two oil cylinders 4 and the pistons 3 are equal in size, so that the oil storage cavities of the two oil cylinders 4 can always keep the same height of the volumes under the mechanical hard limiting condition of the piston connecting rod 5, the error is less than or equal to 0.1%, hydraulic oil which can be discharged by the equal-size oil cylinders 4 is always equal in amount, and the piston rods 3 of the two target oil cylinders 4 are indirectly controlled to operate consistently. When the oil cylinder is in operation, in order to ensure that the oil discharge amount of the two oil cylinders 4 with the same size is the same, the movement speed of the piston connecting rod 5 needs to be reasonably controlled.
When the piston rod 5 of the target oil cylinder runs to a required position, the oil path electromagnetic valve 1 is switched, and the speed reducing motor 10 rotates reversely to discharge hydraulic oil in the oil storage cavity of the oil cylinder 4 with the same size into the equipment oil tank 2, so that one-time work is completed.
The above-mentioned embodiment is only the preferred embodiment of the present invention, and is not to the limitation of the technical solution of the present invention, as long as the technical solution can be realized on the basis of the above-mentioned embodiment without creative work, all should be regarded as falling into the protection scope of the right of the present invention.
Claims (3)
1. The utility model provides a novel hydro-cylinder high accuracy synchro control equipment which characterized in that: the synchronous control equipment comprises an equipment oil tank, a piston connecting rod, a lead screw, a coupling, a speed reducing motor, a pair of electromagnetic valves, a pair of oil cylinders, a pair of pistons, a pair of piston rods and a plurality of lead screw nuts;
the equipment oil tank is respectively communicated with the pair of oil cylinders through pipelines, and the pipelines are respectively provided with an electromagnetic valve;
the pair of oil cylinders are internally provided with pistons respectively, the lower parts of the pair of pistons are connected with piston rods respectively, the pair of piston rods are connected with piston connecting rods together, the piston connecting rods are connected with a lead screw, the lead screw is fixed through a plurality of lead screw nuts, the lower part of the lead screw is connected with a coupler, and the lower part of the coupler is connected with a speed reducing motor.
2. The novel high-precision synchronous control device for the oil cylinder according to claim 1, characterized in that: the pair of pistons are equal-size pistons, and the pair of oil cylinders are equal-size oil cylinders.
3. The novel high-precision synchronous control device for the oil cylinder according to claim 1, characterized in that: the speed reducing motor is a speed reducing motor with a brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020258641.8U CN211820156U (en) | 2020-03-05 | 2020-03-05 | Novel hydro-cylinder high accuracy synchro control equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020258641.8U CN211820156U (en) | 2020-03-05 | 2020-03-05 | Novel hydro-cylinder high accuracy synchro control equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211820156U true CN211820156U (en) | 2020-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020258641.8U Active CN211820156U (en) | 2020-03-05 | 2020-03-05 | Novel hydro-cylinder high accuracy synchro control equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211820156U (en) |
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2020
- 2020-03-05 CN CN202020258641.8U patent/CN211820156U/en active Active
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