Anti-cavitation hydraulic oil source system

Abstract

The utility model discloses an anti-cavitation hydraulic oil source system in the technical field of hydraulic oil source control systems. The anti-cavitation hydraulic oil source system aims to solve the problem that in the prior art, a hydraulic system generates cavitation, and consequently a load working oil way works unstably. The device comprises a working oil tank, and an oil inlet pipeline and an oil return pipeline are arranged on the working oil tank; a communicating oil way is arranged between the standby oil tank and the working oil tank through a first electromagnetic valve and used for supplying hydraulic oil to the working oil tank when the oil source system generates holes; the detection oil path is arranged above the oil inlet pipeline and is filled with hydraulic oil, and a second electromagnetic valve is arranged between the detection oil path and the oil inlet pipeline; and the detection system is used for distinguishing and detecting whether the oil path contains bubbles. The hydraulic oil supply device is suitable for stable oil supply work in an oil source system, can eliminate holes and supplement hydraulic oil when the oil source system generates the holes, and can deal with the abnormal state of an oil way of the system in time and ensure the stability of an oil way working system.

Description

Technical Field

[0001] The utility model relates to an anti-cavitation hydraulic oil source system, belonging to the technical field of hydraulic oil source control systems. Background Art

[0002] The hydraulic oil source is an oil supply device that can be widely used in some hydraulic environments such as vibration tables and control consoles. It realizes system-related functions by stably supplying hydraulic oil to the system. When the oil source equipment is working, if there is leakage, air leakage, and accidental loss leading to oil shortage in the oil tank, it is easy to produce cavitation in the oil supply system, that is, air will mix into the hydraulic oil system and affect the stability and efficiency of the hydraulic oil supply. In order to prevent the working system from abnormalities when cavitation occurs, it is particularly necessary to provide a stable working oil circuit. Summary of the invention

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide an anti-cavitation hydraulic oil source system for stable oil supply in the oil source system. When cavitation occurs in the oil source system, the cavitation can be eliminated and the hydraulic oil can be replenished. The system oil circuit abnormal conditions can be responded to in time and the stability of the oil circuit working system can be ensured.

[0004] In order to achieve the above purpose, the utility model is implemented by adopting the following technical solutions:

[0005] The utility model provides an anti-cavitation hydraulic oil source system, comprising: a working oil tank, on which an oil inlet pipeline and an oil return pipeline are provided; a spare oil tank, a connecting oil circuit is arranged between the spare oil tank and the working oil tank via a first solenoid valve, and is used for supplying hydraulic oil to the working oil tank when cavitation occurs in the oil source system; a detection oil circuit arranged above the oil inlet pipeline, the detection oil circuit is filled with hydraulic oil and a second solenoid valve is arranged between the detection oil circuit and the oil inlet pipeline; a detection system, which is used for distinguishing whether the detection oil circuit contains bubbles; a control system, which is electrically connected to the detection system, the first solenoid valve and the second solenoid valve, and is used for controlling the opening and closing of the corresponding first solenoid valve and the second solenoid valve.

[0006] Specifically, the detection oil circuit is connected to the bottom of the spare oil tank, a perspective window is provided on the top of the spare oil tank, and the detection system includes a camera, which is used to detect bubbles on the upper surface of the spare oil tank.

[0007] Specifically, the upper end surface of the inner cavity of the spare oil tank is conical or truncated cone-shaped.

[0008] Specifically, it also includes an alarm, which is electrically connected to the control system.

[0009] Specifically, the standby oil tank is installed on the working oil tank through a mounting plate, the standby oil tank is located higher than the working oil tank, and the bottom end of the pipeline connecting the standby oil tank and the working oil tank is higher than the position of the oil suction port.

[0010] Specifically, the two connecting pipelines of the spare oil tank are both provided with detachable connection points, and both sides of the two detachable connection points are provided with manual valves.

[0011] Specifically, a liquid outlet pipe is provided at the top of the standby oil tank, and a liquid control valve is provided on the liquid outlet pipe.

[0012] Specifically, the upper surface of the conical range area or the truncated cone range area is transparent.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The hydraulic oil source system provided by the utility model, by arranging a detection oil circuit and a spare oil tank above the oil inlet pipeline, can allow bubbles to be discharged to the top of the detection oil circuit when cavitation occurs in the oil supply pipeline and close the relevant solenoid valve to realize the removal of bubbles in the oil supply system. In order to prevent the continuous generation of bubbles due to lack of oil, the spare oil tank is used to supply oil to the working oil tank so as to prevent the further generation of cavitation. This is beneficial for timely elimination of the problem of cavitation when cavitation occurs in the working oil circuit to ensure the good and stable operation of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the hydraulic oil source system provided by the embodiment of the utility model;

[0016] Figure 2 It is another structural schematic diagram of the hydraulic oil source system provided by the embodiment of the utility model;

[0017] Figure 3 It is a side view of the hydraulic oil source system provided by the embodiment of the utility model;

[0018] Figure 4 This utility model Figure 3 A cross-sectional view of the hydraulic oil source system provided in the embodiment in the AA direction;

[0019] Figure numerals: 1. working oil tank; 2. oil inlet pipeline; 3. first solenoid valve; 4. second solenoid valve; 5. spare oil tank; 6. perspective window; 7. camera; 8. alarm; 9. mounting plate; 10. manual valve; 11. liquid outlet pipe; 12. liquid control valve. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0021] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances. Example

[0023] The utility model embodiment provides an anti-cavitation hydraulic oil source system for stable oil supply in the oil source system. It can eliminate the cavitation and replenish the hydraulic oil when cavitation occurs in the oil source system. It can promptly respond to the abnormal state of the system oil circuit and ensure the stability of the oil circuit working system. In order to realize the anti-cavitation capability of the oil circuit system, the oil circuit system is provided here to include a working oil tank 1, and an oil inlet pipeline 2 and an oil return pipeline are arranged on the working oil tank 1. The oil inlet pipeline 2 is used to realize the action of the relevant hydraulic drive, and the oil return pipeline is used to return the excess hydraulic oil to the working oil tank 1. Under normal conditions, the working The hydraulic oil stored in the oil tank 1 is sufficient for the use of the relevant load system. However, if the load system is improved or there is oil leakage or the capacity of the working oil tank 1 is insufficient, the power source is likely to pump in air and produce cavitation when pumping oil, thereby affecting the normal operation of the system oil circuit. In order to replenish the hydraulic oil in the working oil tank 1 in time after the above phenomenon occurs so as to achieve stable operation of the load system, the oil source system is provided here to also include a spare oil tank 5, wherein a connecting oil circuit is set between the spare oil tank 5 and the working oil tank 1 through a first solenoid valve 3, which is used to open the first solenoid valve 3 when a cavitation phenomenon is detected, and the spare oil tank 5 supplies hydraulic oil to the working oil tank 1 is used to pump hydraulic oil into the oil pump system; in order to detect whether there is a cavitation phenomenon in the oil pump system, the system also includes a detection oil circuit arranged above the oil inlet pipeline 2, the detection oil circuit is filled with hydraulic oil and a second solenoid valve 4 is arranged between the detection oil circuit and the oil inlet pipeline 2. When there is a cavity in the oil supply pipeline, the cavity (i.e., air bubble) will float above the inside of the pipeline. By arranging the detection oil circuit above the oil inlet pipeline 2, the air bubble will flow through the detection oil circuit when passing through the detection oil circuit, and the hydraulic oil in the detection oil circuit will be merged into the oil inlet pipeline 2 to realize normal supply. In order to avoid the influence of the pressure volume change of the cavity, the first solenoid valve 4 is arranged. The second solenoid valve 4 is closed after the bubbles flow over the detection oil circuit, thereby ensuring that the oil pressure in the oil supply system is normal; in order to detect whether bubbles are generated or not, the oil circuit is configured here to also include a detection system, which is used to distinguish whether the detection oil circuit contains bubbles. The specific implementation method is not limited here, and can be referred to as shown below; in order to control the relevant solenoid valves in time to realize automatic control of the oil circuit, the oil circuit system is configured here to also include a control system, which is electrically connected to the detection system, the first solenoid valve 3 and the second solenoid valve 4, and is used to control the opening and closing of the corresponding first solenoid valve 3 and the second solenoid valve 4.

[0024] The utility model provides an anti-cavitation hydraulic oil source system. In order to simplify the connection of the system, the detection oil circuit can be directly connected to the bottom of the spare oil tank 5, such as Figure 1As shown, a perspective window 6 is provided on the top of the spare oil tank 5. When the air bubbles flow through the spare oil tank 5 through the detection oil path, a white patch area will be generated at the top perspective window 6. At this time, a detection system is provided including a camera 7 disposed above the perspective window 6. The camera 7 is used to detect the air bubbles on the upper surface of the spare oil tank 5, so as to determine whether there are cavities in the system. In addition, through this design, the hydraulic oil in the spare oil tank 5 can directly flow the corresponding hydraulic oil into the oil inlet pipeline 2 when the cavities move upward. The reserve amount of hydraulic oil is large, which is sufficient to replenish large-scale cavities.

[0025] An anti-cavitation hydraulic oil source system provided by an embodiment of the utility model can be configured such that the upper end surface of the inner cavity of the spare oil tank 5 is conical or truncated cone-shaped in order to facilitate the judgment of the degree of cavitation in the oil supply system. After the bubbles move into the spare oil tank 5, a blank area is formed above the cone area, and the blank area can be stably formed in the pointing area of ​​the cone, which is beneficial for the camera 7 to perform recognition and judgment. For this purpose, the upper surface of the cone range area or the truncated cone range area is designed to be transparent. As the cavitation phenomenon becomes more serious, the blank area above the cone will increase with the severity of the cavitation. At this time, the camera 7 can be used to judge the area of ​​the blank area, and the area is in a stable circular ring shape, which is beneficial for the camera 7 to perform accurate judgment.

[0026] The embodiment of the utility model provides an anti-cavitation hydraulic oil source system. In order to warn the system working status in time and prompt the occurrence of cavitation, the mechanism provided here also includes an alarm 8, and the alarm 8 is electrically connected to the control system.

[0027] An anti-cavitation hydraulic oil source system provided by an embodiment of the utility model, in order to omit the oil source drive of the spare oil tank 5, the spare oil tank 5 can be installed on the working oil tank 1 through the mounting plate 9, and the position of the spare oil tank 5 is set higher than the working oil tank 1, and the bottom of the pipeline connecting the spare oil tank 5 and the working oil tank 1 is higher than the position of the oil suction port, so that when the hydraulic oil inside the working oil tank 1 is insufficient, the spare oil tank 5 can realize automatic supply by opening the first solenoid valve 3.

[0028] An anti-cavitation hydraulic oil source system provided by an embodiment of the utility model can provide detachable connections on the two connecting pipes of the spare oil tank 5 to replenish the hydraulic oil in the spare oil tank 5. Manual valves 10 are provided on both sides of the two detachable connections. Before disassembly, the corresponding manual valves 10 are closed, and then the spare oil tank 5 can be removed and filled with oil.

[0029] An anti-cavitation hydraulic oil source system provided by an embodiment of the utility model can be provided with a liquid outlet pipe 11 at the top of the spare oil tank 5 to facilitate the replenishment of the hydraulic oil in the spare oil tank 5. The liquid outlet pipe 11 is provided with a liquid control valve 12. When replenishing, the liquid control valve 12 is opened and the oil circuit where the load is located is closed. The liquid control valve 12 is closed after the hydraulic oil position is higher than the liquid control valve 12, so as to achieve good sealing performance of the oil inlet pipeline 2.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An anti-cavitation hydraulic oil source system, characterized in that: include: A working oil tank (1), wherein the working oil tank (1) is provided with an oil inlet pipeline (2) and an oil return pipeline; A standby oil tank (5) is provided with an oil passage communicating with the working oil tank (1) via a first solenoid valve (3), and is used to supply hydraulic oil to the working oil tank (1) when a cavity is generated in the oil source system; A detection oil circuit is provided above the oil inlet pipeline (2), the detection oil circuit is filled with hydraulic oil and a second solenoid valve (4) is provided between the detection oil circuit and the oil inlet pipeline (2); Detection system, used to determine whether the oil circuit contains bubbles; The control system is electrically connected to the detection system, the first solenoid valve (3) and the second solenoid valve (4), and is used to control the opening and closing of the corresponding first solenoid valve (3) and the second solenoid valve (4).

2. The anti-cavitation hydraulic oil source system according to claim 1, characterized in that: The detection oil circuit is connected to the bottom of the spare oil tank (5), a perspective window (6) is provided on the top of the spare oil tank (5), and the detection system comprises a camera (7), and the camera (7) is used to detect bubbles on the upper surface of the spare oil tank (5).

3. The anti-cavitation hydraulic oil source system according to claim 2, characterized in that: The upper end surface of the inner cavity of the reserve oil tank (5) is in a conical or truncated cone shape.

4. The anti-cavitation hydraulic oil source system according to claim 1, characterized in that: It also includes an alarm (8), wherein the alarm (8) is electrically connected to the control system.

5. The anti-cavitation hydraulic oil source system according to claim 2, characterized in that: The standby oil tank (5) is mounted on the working oil tank (1) via a mounting plate (9); the standby oil tank (5) is located higher than the working oil tank (1); and the bottom end of the pipeline connecting the standby oil tank (5) and the working oil tank (1) is higher than the oil suction port.

6. The anti-cavitation hydraulic oil source system according to claim 2, characterized in that: Both connecting pipes of the reserve oil tank (5) are provided with detachable connection points, and both sides of the two detachable connection points are provided with manual valves (10).

7. The anti-cavitation hydraulic oil source system according to claim 2, characterized in that: A liquid outlet pipe (11) is provided at the top end of the reserve oil tank (5), and a liquid control valve (12) is provided on the liquid outlet pipe (11).

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