Electro-hydraulic servo driven hydraulic system of chemical fiber packing machine

Abstract

The utility model relates to the technical field of packaging machines, and provides an electro-hydraulic servo driven hydraulic system of a chemical fiber packaging machine. The oil tank is arranged on one side of the support and provided with an inlet and an outlet. The control valve group is arranged on the oil tank, is communicated with the inlet and the outlet, and is used for controlling the opening or closing of the inlet and the outlet; the oil tank, the control valve set, the oil pump assembly and the hydraulic part are sequentially communicated, and the oil pump assembly is used for controlling the speed of oil entering the hydraulic part. By means of the technical scheme, the problems that in the prior art, when flow changes of a hydraulic pump station system are switched, system vibration is large, and energy consumption is high are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a packing machine technical field, specifically, relates to a kind of electro-hydraulic servo drive's chemical fiber packing machine hydraulic system. BACKGROUND

[0002] The hydraulic system of the chemical fiber packing machine of current domestic and imported basically all adopts constant or variable pump drive. For the flow change of high-flow hydraulic pump station system, the pump group switching of valve control is used, and this part of hydraulic system generally has the shortcomings of large system vibration, high energy consumption and more system heating when pump group switching. Part of high-end hydraulic system uses valve-controlled oil pump proportional variable or servo variable drive. But there are defects of high manufacturing cost, high maintenance cost and slow action response. SUMMARY

[0003] The utility model provides a kind of electro-hydraulic servo drive's chemical fiber packing machine hydraulic system, solve the problem of large system vibration and high energy consumption when the flow change of hydraulic pump station system is switched in the related art.

[0004] The technical scheme of the utility model is as follows:

[0005] A kind of electro-hydraulic servo drive's chemical fiber packing machine hydraulic system, for oil supply to hydraulic part, comprising:

[0006] Support;

[0007] Oil tank, set in the side of the support, the oil tank has import and export;

[0008] Control valve group, set on the oil tank, the control valve group is communicated with the import and the export, the control valve group is used to control the opening or closure of the import and the export;

[0009] Oil pump assembly, set on the support, the oil tank, the control valve group, the oil pump assembly and the hydraulic part are sequentially communicated, and the oil pump assembly is used to control the speed of oil amount into the hydraulic part.

[0010] As a further technical scheme, the oil pump assembly includes:

[0011] Duplex vane pump, set on the support, is communicated with the export, and the duplex vane pump is used to provide hydraulic oil power.

[0012] Servo motor, set on support, the servo motor is used to drive the duplex vane pump action.

[0013] As a further technical scheme, further include:

[0014] A pressure sensor is arranged between the control valve group and the double vane pump, and is used to detect the pressure in the oil circuit.

[0015] A controller is arranged on the oil tank, and is used to receive and process the signal of the pressure sensor, and control the servo motor.

[0016] As a further technical solution, it further comprises:

[0017] An oil filter is arranged between the outlet and the double vane pump.

[0018] As a further technical solution, it further comprises:

[0019] A flexible hose is arranged between the oil filter and the double vane pump, and is used to relieve the pressure shock of the oil circuit when the double vane pump changes.

[0020] As a further technical solution, the hydraulic system uses a pipeline as a high-pressure hose.

[0021] The working principle and beneficial effects of the utility model are as follows:

[0022] In the utility model, the support provides stable support for the oil tank and the oil pump assembly and other components, ensures that the entire hydraulic system remains stable during operation, and reduces faults and errors caused by vibration or instability. The oil tank is arranged on one side of the support, facilitating installation and maintenance, and the design of the inlet and outlet facilitates the entry and exit of oil, providing a basis for oil supply of the entire system. The control valve group is arranged on the oil tank and communicates with the inlet and outlet, and can accurately control the entry and exit of oil, thereby realizing accurate adjustment and control of the working state of the hydraulic system. The oil pump assembly is arranged on the support and sequentially communicates with the oil tank, the control valve group and the hydraulic component, forming a complete oil supply circuit and ensuring that oil can flow smoothly into the hydraulic component. The oil pump assembly can control the speed of oil entering the hydraulic component, realizing accurate control of the flow of the hydraulic system and avoiding the influence of excessive or insufficient flow on system performance. Compared with the traditional hydraulic system, the electro-hydraulic servo drive design can effectively reduce system vibration during pump group switching, reduce energy consumption, reduce system heating, and improve the stability and reliability of the system. BRIEF DESCRIPTION OF DRAWINGS

[0023] The above-mentioned characteristics, technical features, advantages and implementation modes of the utility model will be further described in a clear and understandable manner in combination with the preferred embodiments and the accompanying drawings.

[0024] Fig. 1 The utility model structural schematic diagram is shown in the figure.

[0025] Fig. 2Another view of the structure of the utility model is shown in the schematic diagram.

[0026] Fig. 3 The schematic diagram of the structure of the oil pump assembly in the utility model is shown.

[0027] In the figure: 1, support, 2, oil tank, 3, inlet, 4, outlet, 5, control valve group, 6, oil pump assembly, 7, double-leaf vane pump, 8, servo motor, 9, pressure sensor, 10, controller, 11, oil filter, 12, flexible hose. DETAILED DESCRIPTION

[0028] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the specific implementation of the utility model will be described below with reference to the drawings. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, without creative labor, further technical solutions can be understood, and in some drawings, only one of the components with the same structure or function is shown, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0029] In this paper, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0030] In addition, in the description of the present application, the terms "first", "second" and the like are only used for differentiation and description, and cannot be understood as indicating or implying relative importance.

[0031] Reference Figs. 1-3 , an electro-hydraulic servo-driven chemical fiber packing machine hydraulic system is proposed for supplying oil to the hydraulic part, comprising: a support 1; an oil tank 2 is arranged on one side of the support 1, the oil tank 2 has an inlet 3 and an outlet 4; a control valve group 5 is arranged on the oil tank 2, the control valve group 5 communicates with the inlet 3 and the outlet 4, the control valve group 5 is used for controlling the opening or closing of the inlet 3 and the outlet 4; an oil pump assembly 6 is arranged on the support 1, the oil tank 2, the control valve group 5, the oil pump assembly 6 and the hydraulic part are communicated in sequence, and the oil pump assembly 6 is used for controlling the speed of the oil entering the hydraulic part.

[0032] In this embodiment, the support 1 provides stable support for the oil tank 2 and the oil pump assembly 6 and other components, ensuring that the entire hydraulic system remains stable during operation, reducing failures and errors caused by vibration or instability. The oil tank 2 is arranged on one side of the support 1, facilitating installation and maintenance, and the design of the inlet 3 and outlet 4 facilitates the entry and exit of oil, providing a foundation for the oil supply of the entire system. The control valve group 5 is arranged on the oil tank 2 and communicates with the inlet 3 and outlet 4, enabling precise control of the entry and exit of oil, thereby achieving precise adjustment and control of the working state of the hydraulic system. The oil pump assembly 6 is arranged on the support 1 and communicates with the oil tank 2, the control valve group 5 and the hydraulic components in turn, forming a complete oil supply circuit to ensure smooth flow of oil into the hydraulic components. The oil pump assembly 6 can control the speed of oil entering the hydraulic components, achieving precise control of the flow of the hydraulic system, avoiding the influence of excessive or insufficient flow on system performance. Compared with traditional hydraulic systems, this electro-hydraulic servo drive design can effectively reduce system vibration during pump group switching, reduce energy consumption, reduce system heating, and improve system stability and reliability.

[0033] As a further technical solution, the oil pump assembly 6 comprises: a double vane pump 7 arranged on the support 1 and communicating with the outlet 4, the double vane pump 7 being used to provide hydraulic oil power. A servo motor 8 is arranged on the support 1, and the servo motor 8 is used to drive the double vane pump 7 to act.

[0034] In this embodiment, the double vane pump 7 is arranged on the support 1, which is compact in structure and occupies less space, and can stably provide hydraulic oil power for the system to ensure normal operation of the hydraulic system. The use of the double vane pump 7 can provide different flow and pressure outputs according to actual needs, increasing the flexibility and adaptability of the system. The servo motor 8 is arranged on the support 1 and can accurately control the speed and torque to accurately drive the double vane pump 7, achieving precise adjustment of the flow and pressure of the hydraulic oil. The servo motor 8 has a fast response speed and can quickly adjust the output according to the needs of the system, improving the response speed of the entire hydraulic system. Compared with traditional driving methods, the combination of the servo motor 8 and the double vane pump 7 has higher energy conversion efficiency, reducing energy consumption and reducing system heating.

[0035] As a further technical solution, it also includes: a pressure sensor 9 arranged between the control valve group 5 and the double vane pump 7, the pressure sensor 9 being used to detect the pressure in the oil circuit; a controller 10 arranged on the oil tank 2, the controller 10 being used to receive and process signals from the pressure sensor 9 and control the servo motor 8.

[0036] In this embodiment, the pressure sensor 9 is arranged between the control valve group 5 and the double vane pump 7, which can accurately detect the pressure in the oil circuit in real time and provide key parameters for the control and adjustment of the system. The controller 10 is arranged on the oil tank 2, which is reasonable in position and convenient for wiring and maintenance. It can receive the signal of the pressure sensor 9 in time and process and analyze it quickly. Through the processing of the signal of the pressure sensor 9 by the controller 10, the accurate control of the servo motor 8 can be realized. According to the change of the oil circuit pressure, the speed and torque of the motor are adjusted in real time, so as to accurately control the output flow and pressure of the double vane pump 7. This closed-loop pressure control mode can ensure that the hydraulic system maintains stable pressure under different working conditions, improving the working accuracy and stability of the system.

[0037] As a further technical solution, it also includes an oil filter 11 arranged between the outlet 4 and the double vane pump 7.

[0038] In this embodiment, the oil filter 11 is arranged between the outlet 4 and the double vane pump 7, which can effectively filter the impurities and pollutants in the hydraulic oil flowing out of the oil tank 2, prevent these impurities from entering the double vane pump 7 and subsequent hydraulic components, and reduce the wear and failure of the components. The filtered clean hydraulic oil helps to improve the working efficiency and stability of the system, prolonging the service life of the oil pump assembly 6 and other hydraulic components. It reduces the blockage of the oil circuit caused by impurities, ensures the smooth flow of hydraulic oil, and reduces the maintenance cost and downtime of the system.

[0039] As a further technical solution, it also includes a flexible hose 12 arranged between the oil filter 11 and the double vane pump 7, which is used to relieve the pressure shock of the oil circuit when the double vane pump 7 changes.

[0040] In this embodiment, the flexible hose 12 is arranged between the oil filter 11 and the double vane pump 7, which can effectively absorb and buffer the vibration and impact generated during the operation of the double vane pump 7, reduce the influence of vibration on the connection of the oil circuit, and reduce noise and fatigue damage of the equipment. When the working state of the double vane pump 7 changes, such as sudden change of speed or start-stop, the flexible hose 12 can relieve the pressure shock in the oil circuit, avoid the generation of too high pressure peak, and protect the oil pump and other hydraulic components from being damaged. The flexible hose 12 has certain flexibility and elasticity, which can adapt to the slight displacement and deformation of the system during operation, ensure the reliability of the connection of the oil circuit, and reduce the risk of leakage. Its buffering effect helps to reduce the pressure fluctuation in the system, improve the stability and working accuracy of the hydraulic system, and make the action of the chemical fiber packaging machine more stable and accurate. Compared with the rigid connection pipeline, the flexible hose 12 is easier to install and maintain, reducing the installation difficulty and cost of the system.

[0041] As a further technical solution, the hydraulic system uses a pipeline as a high-pressure hose.

[0042] In this embodiment, the high-pressure hose has good flexibility and bending performance, can adapt to complex installation layout and space limitation, facilitates arrangement and connection inside the chemical fiber packing machine, reduces installation difficulty and cost. It can withstand high pressure, ensure that it will not be broken or failed due to high pressure when the hydraulic system is working, and ensure the safety and reliability of the system. The high-pressure hose has certain anti-vibration and impact resistance, can effectively reduce the vibration transmission in the system operation, and reduce noise and fatigue damage of the equipment.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application. They should be included in the scope of the claims of the present application.

Claims

1. An electro-hydraulic servo-driven hydraulic system of a chemical fiber baling press, for supplying oil into a hydraulic part, characterized in that, The hydraulic system comprises: a bracket (1); an oil tank (2) arranged on one side of the bracket (1), the oil tank (2) having an inlet (3) and an outlet (4); a control valve group (5) arranged on the oil tank (2), the control valve group (5) being in communication with the inlet (3) and the outlet (4), the control valve group (5) being used to control the opening or closing of the inlet (3) and the outlet (4); an oil pump assembly (6) arranged on the bracket (1), the oil tank (2), the control valve group (5), the oil pump assembly (6) and the hydraulic component being in sequence communication, the oil pump assembly (6) being used to control the speed of the oil entering the hydraulic component.

2. The hydraulic system of the electro-hydraulic servo-driven chemical fiber packing machine according to claim 1, characterized in that, The oil pump assembly (6) comprises: a double vane pump (7) arranged on the bracket (1) and in communication with the outlet (4), the double vane pump (7) being used to provide hydraulic oil power; a servo motor (8) arranged on the bracket (1), the servo motor (8) being used to drive the double vane pump (7) to act.

3. The hydraulic system of the electro-hydraulic servo-driven chemical fiber packing machine according to claim 2, characterized in that, Further comprising: a pressure sensor (9) arranged between the control valve group (5) and the double vane pump (7), the pressure sensor (9) being used to detect the pressure in the oil circuit; a controller (10) arranged on the oil tank (2), the controller (10) being used to receive and process the signal of the pressure sensor (9) and control the servo motor (8).

4. The hydraulic system of the electro-hydraulic servo-driven chemical fiber packing machine according to claim 2, characterized in that, Further comprising: an oil filter (11) arranged between the outlet (4) and the double vane pump (7).

5. The hydraulic system of the electro-hydraulic servo-driven chemical fiber packing machine according to claim 4, characterized in that, Further comprising: a flexible hose (12) arranged between the oil filter (11) and the double vane pump (7), the flexible hose (12) being used to relieve the sudden change of the pressure in the oil circuit when the double vane pump (7) changes.

6. The hydraulic system of the electro-hydraulic servo-driven chemical fiber packing machine according to claim 1, characterized in that, The hydraulic system uses a pipeline which is a high-pressure hose.

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