CN216009083U - Precision pump control oil cylinder positioning device - Google Patents
Precision pump control oil cylinder positioning device Download PDFInfo
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- CN216009083U CN216009083U CN202120820632.8U CN202120820632U CN216009083U CN 216009083 U CN216009083 U CN 216009083U CN 202120820632 U CN202120820632 U CN 202120820632U CN 216009083 U CN216009083 U CN 216009083U
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Abstract
The utility model relates to the technical field of oil cylinders, in particular to a precision pump control oil cylinder positioning device which comprises a servo motor, an absolute value encoder, an oil pump, a pressure sensor, a direction valve, an oil cylinder, a position sensor and a controller. Adopt such structure setting, through installing the absolute value encoder on servo motor, compare current pump control system, it has promoted servo motor's rotational speed and positioning control precision by a wide margin to thereby the oil mass precision of the output oil mass of control oil pump realizes the accurate positioning of hydro-cylinder position through oil mass accuracy control.
Description
Technical Field
The utility model relates to the technical field of oil cylinders, in particular to a positioning device for a precision pump control oil cylinder.
Background
The existing pump control technology is generally used on hydraulic machinery, but the main function is energy conservation, the precision control is generally low, a resolver transformer is generally used on a motor as a rotation speed sensor to control the rotation speed of the motor, in addition, the leakage of an oil pump and the output of the oil pump have great sensitivity to the oil temperature, and the positioning precision of the oil cylinder is generally low.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems, the utility model provides a positioning device for a precision pump control oil cylinder, which effectively solves the defects in the prior art.
In order to achieve the purpose, the technical scheme applied by the utility model is as follows:
the utility model provides a precision pump accuse hydro-cylinder positioner, including servo motor, the absolute value encoder, the oil pump, pressure sensor, the direction valve, the hydro-cylinder, position sensor and controller, the absolute value encoder is installed on servo motor, servo motor connects respectively in oil pump and controller, pressure sensor connects respectively in the oil-out of controller and oil pump, the oil-out of oil pump links to each other with the oil inlet P of direction valve, the oil inlet of hydro-cylinder links to each other with the oil inlet A of direction valve, the oil-out of hydro-cylinder links to each other with the oil-out B of direction valve, position sensor connects respectively in controller and hydro-cylinder.
According to the scheme, the controller is externally connected with operation software.
According to the scheme, an overflow valve is arranged between an oil pipe between the oil inlet P of the directional valve and the oil outlet of the oil pump and an oil pipe connected with the oil outlet T of the directional valve.
The utility model has the beneficial effects that:
by adopting the structure, the absolute value encoder is arranged on the servo motor, and compared with the existing pump control system, the oil cylinder positioning system has the advantages that the rotating speed and the positioning control precision of the servo motor are greatly improved, so that the oil quantity precision of the output oil quantity of the oil pump is controlled, and the accurate positioning of the position of the oil cylinder is realized through the oil quantity precision control.
Drawings
FIG. 1 is a schematic view of the overall structural assembly of the present invention;
1. a servo motor; 2. an absolute value encoder; 3. an oil pump; 4. a pressure sensor; 5. a directional valve; 6. an oil cylinder; 7. a position sensor; 8. an overflow valve; 9. a controller;
Detailed Description
The technical solution of the present invention is described below with reference to the accompanying drawings and examples.
As shown in figure 1, the precision pump control oil cylinder positioning device comprises a servo motor 1, an absolute value encoder 2, an oil pump 3, a pressure sensor 4, a direction valve 5, an oil cylinder 6, a position sensor 7 and a controller 9, wherein the absolute value encoder 2 is installed on the servo motor 1, the servo motor 1 is respectively connected with the oil pump 3 and the controller 9, the pressure sensor 4 is respectively connected with the controller 9 and an oil outlet of the oil pump 3, an oil outlet of the oil pump 3 is connected with an oil inlet P of the direction valve 5, an oil inlet of the oil cylinder 6 is connected with an oil inlet A of the direction valve 5, an oil outlet of the oil cylinder 6 is connected with an oil outlet B of the direction valve 5, and the position sensor 7 is respectively connected with the controller 9 and the oil cylinder 6. The above constitutes the basic structure of the present invention.
In this embodiment, the controller 9 is externally connected with operation software. By adopting the structure, the movement position of the oil cylinder 6 is detected by the position sensor 7, the movement position of the oil cylinder 6 is fed back to the controller 9, and the controller 9 controls the rotating speed of the oil pump 3 after being operated by operation software. It should be noted that the controller 9 is controlled by operation software, which belongs to a common technical means in the art, and therefore, detailed description of a specific operation method of the operation software is not repeated herein.
In the present embodiment, an overflow valve 8 is arranged between an oil pipe between the oil inlet P of the directional valve 5 and the oil outlet of the oil pump 3 and an oil pipe connected to the oil outlet T of the directional valve 5. By adopting the structure, the overflow valve 8 plays a role in protecting the oil during circular motion.
The utility model adopts the structure arrangement, and the working principle is as follows: the controller 9 drives the servo motor 1 to rotate, and meanwhile, data on the absolute value encoder 2 on the servo motor 1 is fed back to the controller 9, so that the accurate control of the rotating speed and the position of the servo motor 1 is realized, the oil pump 3 is driven to synchronously rotate through the servo motor 1 and enters the oil cylinder 6 through the direction valve 5, the moving direction of the oil cylinder 6 can be controlled through the direction valve 5, the oil cylinder 6 moves, meanwhile, the moving position of the oil cylinder 6 is detected through the position sensor 7, the moving position of the oil cylinder 6 is fed back to the controller 9, the controller 9 controls the rotating speed of the oil pump 3 after operation of operation software, and further controls the output oil quantity of the oil pump 3, so that the position of the oil cylinder 6 is controlled, and the accurate positioning of the oil cylinder 6 is realized.
It should be noted that, the utility model adopts the precise positioning of the position of the oil cylinder 6 by precisely controlling the oil output of the oil pump 3 to perform closed-loop control, the precision is high, and in practical application, the absolute value encoder 2 is installed on the servo motor 1, compared with the existing pump control system, the utility model has the advantages that the rotating speed and the positioning control precision of the servo motor 1 are greatly improved, so that the oil quantity precision of the output oil quantity of the oil pump 3 is controlled, and the precise positioning of the position of the oil cylinder 6 is realized through the oil quantity precision control.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and those skilled in the art can make various modifications without departing from the spirit and scope of the present invention.
Claims (2)
1. The utility model provides a precision pump accuse hydro-cylinder positioner which characterized in that: including servo motor (1), absolute value encoder (2), oil pump (3), pressure sensor (4), direction valve (5), hydro-cylinder (6), position sensor (7) and controller (9), absolute value encoder (2) is installed on servo motor (1), servo motor (1) is connected respectively in oil pump (3) and controller (9), pressure sensor (4) are connected respectively in the oil-out of controller (9) and oil pump (3), the oil-out of oil pump (3) links to each other with the oil inlet P of direction valve (5), the oil inlet of hydro-cylinder (6) links to each other with the oil inlet A of direction valve (5), the oil-out of hydro-cylinder (6) links to each other with the oil-out B of direction valve (5), position sensor (7) are connected respectively in controller (9) and hydro-cylinder (6).
2. The precision pump control cylinder positioning device according to claim 1, characterized in that: and an overflow valve (8) is arranged between an oil pipe between an oil inlet P of the directional valve (5) and an oil outlet of the oil pump (3) and an oil pipe connected with an oil outlet T of the directional valve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120820632.8U CN216009083U (en) | 2021-04-21 | 2021-04-21 | Precision pump control oil cylinder positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120820632.8U CN216009083U (en) | 2021-04-21 | 2021-04-21 | Precision pump control oil cylinder positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216009083U true CN216009083U (en) | 2022-03-11 |
Family
ID=80581182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120820632.8U Active CN216009083U (en) | 2021-04-21 | 2021-04-21 | Precision pump control oil cylinder positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216009083U (en) |
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2021
- 2021-04-21 CN CN202120820632.8U patent/CN216009083U/en active Active
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