CN212959320U - Hydraulic system of servo motor direct-drive oil cylinder - Google Patents
Hydraulic system of servo motor direct-drive oil cylinder Download PDFInfo
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- CN212959320U CN212959320U CN202020909638.8U CN202020909638U CN212959320U CN 212959320 U CN212959320 U CN 212959320U CN 202020909638 U CN202020909638 U CN 202020909638U CN 212959320 U CN212959320 U CN 212959320U
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Abstract
The utility model discloses a servo motor directly drives hydraulic system of hydro-cylinder, its scheme is: the oil cylinder is internally divided into an oil cylinder upper cavity and an oil cylinder lower cavity, and the oil cylinder further comprises a pressurizing oil path, wherein the pressurizing oil path comprises an M1 motor, a P1 oil pump is arranged at the output end of the M1 motor, a C1 one-way valve is arranged at the output end of the P1 oil pump, a C2 one-way valve is connected to the output end of the C1 one-way valve, and the output terminal of the C2 one-way valve is connected with the oil cylinder upper cavity; the return oil circuit, the return oil circuit includes M2 motor, M2 motor output is equipped with the P2 oil pump, P2 oil pump output is equipped with two circuits, and a circuit is the liquid accuse oil circuit, and output terminal is connecting the liquid accuse check valve, and another circuit is the return oil main line, C3 check valve sets up on P2 oil pump output, C3 check valve output is equipped with C5 check valve, the beneficial effects of the utility model are that: the servo motor controls the oil path to directly drive the oil cylinder, so that the control precision is high, the response speed is high, and hydraulic fault points are reduced.
Description
Technical Field
The utility model relates to a hydraulic system field, concretely relates to servo motor directly drives hydraulic system of hydro-cylinder.
Background
In a traditional hydraulic system, a motor is only a driving element, main actions are realized by an oil way, and the motor is only responsible for oil supply. The traditional hydraulic system supplies hydraulic oil to a main oil way through a cartridge valve, and has the defects of multiple functional valve blocks, multiple oil ways, poor control precision, easy oil leakage and multiple fault points.
Therefore, the invention is necessary to develop a hydraulic system with a servo motor directly driving the oil cylinder.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a servo motor directly drives hydraulic system of hydro-cylinder, through servo motor control oil way direct drive hydro-cylinder, control accuracy is high, and response speed is fast, has reduced hydraulic pressure fault point simultaneously to solve the problem of background art.
In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides a hydraulic system of servo motor direct drive hydro-cylinder, includes the hydro-cylinder, inside hydro-cylinder divide into hydro-cylinder epicoele and hydro-cylinder cavity of resorption, still includes: the pressurization oil path comprises an M1 motor, a P1 oil pump is arranged at the output end of the M1 motor, a C1 one-way valve is arranged at the output end of the P1 oil pump, a C2 one-way valve is connected to the output end of the C1 one-way valve, and the output terminal of the C2 one-way valve is connected with an upper oil cylinder cavity;
the return oil circuit, the return oil circuit includes M2 motor, M2 motor output is equipped with the P2 oil pump, P2 oil pump output is equipped with two circuits, and a circuit is the pilot-operated oil circuit, and output terminal is connecting pilot-operated check valve, and another circuit is the return main oil circuit, C3 check valve sets up on P2 oil pump output, C3 check valve output is equipped with C5 check valve, C5 check valve link connection C4 high-low pressure regulation pilot-operated check valve cartridge subassembly, C4 high-low pressure regulation pilot-operated check valve cartridge subassembly is connected and is equipped with C6 check valve subassembly, the hydro-cylinder is being connected to C6 pilot-operated check valve subassembly terminal.
Preferably, the M1 motor and the M2 motor are both servo motors.
Preferably, the connecting end of the upper cavity of the oil cylinder is connected with the oil tank through a hydraulic control one-way valve.
Preferably, the C4 high-low pressure regulating hydraulic control one-way cartridge valve assembly comprises a first pressure valve, an electromagnet assembly and a pressurized oil tank, and the first pressure valve, the electromagnet assembly and the pressurized oil tank are connected through oil communication pipelines.
Preferably, the electromagnet assembly comprises an electromagnet a and an electromagnet b.
Preferably, the C6 pilot operated check valve assembly comprises a YV8 solenoid valve and a second pressure valve, and the YV8 solenoid valve and the second pressure valve are connected through a oil pipeline.
The utility model has the advantages that:
when the oil cylinder is pressurized, the M1 motor drives the P1 oil pump to work, hydraulic oil enters an upper oil cylinder cavity in the oil cylinder through the C1 one-way valve and the C2 one-way valve, meanwhile, the C6 hydraulic control one-way valve component and the YV8 electromagnetic valve are opened and are not electrified, the hydraulic oil in the lower oil cylinder cavity in the oil cylinder flows to the C4 high-low pressure adjusting hydraulic control one-way cartridge valve component through the C6 hydraulic control one-way valve component through an oil pipe, the b electromagnet is electrified, and the oil in the main oil way directly flows into a pressurizing oil tank through the C4 high-low pressure adjusting hydraulic control one-way cartridge valve component, so;
when the oil cylinder returns, the M2 motor drives the P2 oil pump to work, at the moment, the hydraulic control one-way valve is opened through oil passing through the hydraulic control oil way, so that hydraulic oil in the upper cavity of the oil cylinder directly flows into the oil tank, meanwhile, the hydraulic oil enters the C4 high-low pressure adjusting hydraulic control one-way cartridge valve assembly through the opened C3 one-way valve and the opened C5 one-way valve, at the moment, the electromagnet is electrified, the pressure of the hydraulic oil entering the lower cavity of the oil cylinder of the cylinder body is adjusted through the two pressure valves, meanwhile, the hydraulic oil enters the C6 hydraulic control one-way valve assembly, at the moment, the YV8 electromagnetic valve is electrified, so that the hydraulic oil flows to the direction of the oil cylinder from;
the utility model discloses get rid of traditional valve block control, servo motor control oil circuit direct drive hydro-cylinder, control accuracy is high, and response speed is fast, has reduced hydraulic pressure trouble point simultaneously.
Drawings
FIG. 1 is a diagram of the overall system provided by the present invention;
FIG. 2 is a view of the C4 high and low pressure regulating hydraulic control one-way cartridge valve assembly provided by the present invention;
in the figure: the hydraulic control system comprises a 1M1 motor, a 2P1 oil pump, a 3C1 one-way valve, a 4C2 one-way valve, a 5M2 motor, a 6P2 oil pump, a 7C3 one-way valve, an 8C5 one-way valve, a 9C4 high-low pressure adjusting hydraulic control one-way cartridge valve assembly, a 10C6 hydraulic control one-way valve assembly, a 11YV8 electromagnetic valve, a 12 second pressure valve, a 13 oil cylinder, a 14 oil cylinder upper cavity, a 15 oil cylinder lower cavity, a 16 hydraulic control one-way valve, a 17 oil tank, a 41 first pressure valve and a 42 electromagnet assembly.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Referring to the accompanying drawings 1-2, the utility model provides a pair of hydraulic system of servo motor direct drive hydro-cylinder, including hydro-cylinder 13, inside hydro-cylinder epicoele 14 and the hydro-cylinder lower chamber 15 that divide into of hydro-cylinder 13, its characterized in that still includes:
the pressurization oil path comprises an M1 motor 1, a P1 oil pump 2 is arranged at the output end of the M1 motor 1, a C1 one-way valve 3 is arranged at the output end of the P1 oil pump 2, only one-way circulation of hydraulic oil is allowed, reverse flow is prevented, a C2 one-way valve 4 is connected to the output end of the C1 one-way valve 3, the effects of only one-way circulation of hydraulic oil and reverse flow prevention are achieved, and the output terminal of the C2 one-way valve 4 is connected with an oil cylinder 13;
the oil return circuit comprises an M2 motor 5, a P2 oil pump 6 is arranged at the output end of the M2 motor 5, two lines are arranged at the output end of the P2 oil pump 6, one line is a hydraulic control oil circuit, an output terminal is connected with a hydraulic control one-way valve 16, the other line is a return main oil circuit and has the function of only allowing hydraulic oil to flow in a one-way mode and preventing reverse flow, a C3 one-way valve 7 is arranged at the output end of the P2 oil pump 6, a C5 one-way valve 8 is arranged at the output end of the C3 one-way valve 7 and has the function of only allowing hydraulic oil to flow in a one-way and preventing reverse flow, the connecting end of the C5 one-way valve 8 is connected with a C4 high-low pressure regulating hydraulic control one-way cartridge valve assembly 9, the C4 high-low pressure regulating hydraulic control one-way cartridge valve assembly 9 is.
Furthermore, the M1 motor 1 and the M2 motor 5 are both set as servo motors, the servo motors are high in control precision and reliable in performance, and the oil cylinders are controlled to act by adjusting the servo motors, so that the control precision and the reaction speed are facilitated.
Furthermore, the connecting end of the cylinder upper cavity 14 is connected with the oil tank 17 through a pilot-controlled check valve 16, and the output terminal of the C2 check valve 4 is connected with the cylinder upper cavity 14.
Further, the C4 high-low pressure regulating hydraulic control one-way cartridge valve assembly 9 comprises a first pressure valve 41, an electromagnet assembly 42 and a pressurizing oil tank, the first pressure valve 41, the electromagnet assembly 42 and the pressurizing oil tank are connected through an oil passage, the electromagnet assembly 42 comprises an electromagnet a and an electromagnet b, when the electromagnet a in the C4 high-low pressure regulating hydraulic control one-way cartridge valve assembly 9 is electrified, the pressure of hydraulic oil entering the lower cavity of the cylinder body oil cylinder is regulated through the two pressure valves 41, and when the electromagnet b in the C4 high-low pressure regulating hydraulic control one-way cartridge valve assembly 9 is electrified, the oil in the main oil passage directly flows into the pressurizing oil tank through the C4.
Further, the C6 pilot-controlled check valve assembly 10 includes a YV8 solenoid valve 11 and a second pressure valve, the YV8 solenoid valve 11 and the second pressure valve 12 are connected by an oil communication line, when the YV8 solenoid valve is energized, the C6 pilot-controlled check valve assembly allows oil to flow from the C6 pilot-controlled check valve assembly to the cylinder direction, and prohibits oil from flowing into the C6 pilot-controlled check valve assembly, and when the YV8 solenoid valve is not energized, the C6 pilot-controlled check valve assembly allows oil to flow from the cylinder to the C6 pilot-controlled check valve assembly direction, and prohibits the C6 pilot-controlled check valve assembly from flowing into the cylinder direction.
The utility model discloses a use as follows: when using the utility model discloses the time, when giving the pressurization of hydro-cylinder 13, M1 motor 1 drives P1 oil pump 2 work, hydraulic oil passes through C1 check valve 3 and C2 check valve 4 and gets into hydro-cylinder upper chamber 14 in the hydro-cylinder 13, and simultaneously, open C6 pilot-operated check valve subassembly 10 and YV8 solenoid valve and do not energize, hydraulic oil in the hydro-cylinder lower chamber 15 in the hydro-cylinder 13 passes through C6 pilot-operated check valve subassembly 10 flow to C4 high-low pressure regulation pilot-operated check valve cartridge subassembly 9 through oil pipe, energize for the b electro-magnet simultaneously, then oil in the main oil circuit directly flows into the pressurization oil tank through C4 high-low pressure regulation pilot-operated check valve cartridge subassembly, thereby accomplish the pressurization of hydro-cylinder 13;
when the oil cylinder 13 returns, the M2 motor 5 drives the P2 oil pump 6 to work, at this time, the hydraulic control one-way valve 16 is opened through the hydraulic control oil path, so that hydraulic oil in the upper chamber 14 of the oil cylinder directly flows into the oil tank 17, meanwhile, the hydraulic oil enters the C4 high-low pressure regulating hydraulic control one-way cartridge valve assembly 9 through the opened C3 one-way valve 7 and the opened C5 one-way valve 8, at this time, the electromagnet is energized, the pressure entering the lower chamber of the cylinder body is regulated through the two pressure valves 41, meanwhile, the hydraulic oil enters the C6 hydraulic control one-way valve assembly, at this time, the YV8 electromagnetic valve is energized, so that the hydraulic oil flows from the C6 one-way valve assembly 10 to the direction of the oil cylinder, and the oil.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solutions described above. Therefore, any simple modifications or equivalent replacements made according to the technical solution of the present invention belong to the scope of the claimed invention as far as possible.
Claims (6)
1. The utility model provides a hydraulic system of servo motor direct drive hydro-cylinder, includes hydro-cylinder (13), hydro-cylinder (13) inside divide into hydro-cylinder epicoele (14) and hydro-cylinder lower chamber (15), its characterized in that still includes:
the pressurization oil path comprises an M1 motor (1), a P1 oil pump (2) is arranged at the output end of the M1 motor (1), a C1 one-way valve (3) is arranged at the output end of the P1 oil pump (2), a C2 one-way valve (4) is connected to the output end of the C1 one-way valve (3), and the output terminal of the C2 one-way valve (4) is connected with an upper oil cylinder cavity (14);
the oil way of return stroke, the oil way of return stroke includes M2 motor (5), M2 motor (5) output is equipped with P2 oil pump (6), P2 oil pump (6) output is equipped with two branch lines, and a branch line is the pilot-operated oil way, and output terminal is connecting pilot-operated check valve (16), and another branch line is the return stroke main oil way, is equipped with C3 check valve (7) on the oil way, C3 check valve (7) set up on P2 oil pump (6) output, C3 check valve (7) output is equipped with C5 check valve (8), C5 check valve (8) link connection C4 high-low pressure regulation pilot-operated check valve cartridge subassembly (9), C4 high-low pressure regulation pilot-operated check valve subassembly (9) connect and are equipped with C6 pilot-operated check valve subassembly (10), C6 pilot-operated check valve subassembly (10) terminal connection hydro-cylinder (13).
2. The hydraulic system of a servo motor direct drive oil cylinder according to claim 1, characterized in that: the M1 motor (1) and the M2 motor (5) are both set as servo motors.
3. The hydraulic system of a servo motor direct drive oil cylinder according to claim 1, characterized in that: the connecting end of the upper cavity (14) of the oil cylinder is connected with an oil tank (17) through a hydraulic control one-way valve (16).
4. The hydraulic system of a servo motor direct drive oil cylinder according to claim 1, characterized in that: the C4 high-low pressure adjusting hydraulic control one-way cartridge valve assembly (9) comprises a first pressure valve (41), an electromagnet assembly (42) and a pressurizing oil tank, wherein the first pressure valve (41), the electromagnet assembly (42) and the pressurizing oil tank are connected through oil communication pipelines.
5. The hydraulic system of a servo motor direct drive oil cylinder according to claim 4, characterized in that: the electromagnet assembly (42) comprises an electromagnet a and an electromagnet b.
6. The hydraulic system of a servo motor direct drive oil cylinder according to claim 1, characterized in that: the C6 pilot-controlled check valve assembly (10) comprises a YV8 electromagnetic valve (11) and a second pressure valve, and the YV8 electromagnetic valve (11) and the second pressure valve (12) are connected through an oil pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020909638.8U CN212959320U (en) | 2020-05-26 | 2020-05-26 | Hydraulic system of servo motor direct-drive oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020909638.8U CN212959320U (en) | 2020-05-26 | 2020-05-26 | Hydraulic system of servo motor direct-drive oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212959320U true CN212959320U (en) | 2021-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020909638.8U Active CN212959320U (en) | 2020-05-26 | 2020-05-26 | Hydraulic system of servo motor direct-drive oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212959320U (en) |
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2020
- 2020-05-26 CN CN202020909638.8U patent/CN212959320U/en active Active
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