A hydraulic oil tank for marine EHA power unit

Abstract

This utility model relates to the field of hydraulic oil tank technology, specifically a hydraulic oil tank for a marine EHA power unit, comprising a tank body, an inlet, and a return outlet. The inlet is located at the top of the tank body, and a vent is located on one side of the inlet. A return outlet is located on one side of the top of the tank body. A filter screen limiting groove is provided in the return outlet, and a metal filter screen is installed in the filter screen limiting groove by screws. A sealing cap is installed at one end of the return outlet by clamping bolts. A return pipe is connected to one side of the sealing cap, and a sealing valve B is provided on the return pipe. An oil pump is installed on one side of the bottom of the tank body via a mounting base. The hydraulic oil tank for a marine EHA power unit facilitates the filtering of solid particles in the hydraulic oil, improves purity, facilitates recycling, and makes it easy to clean or replace the metal filter screen.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic oil tank technology, specifically to a hydraulic oil tank for a marine EHA power unit. Background Technology

[0002] EHA (Electro-Hydrostatic Actuator) is a mechatronic closed-loop control system that achieves high-precision control of mechanical motion by converting electric power into hydraulic energy. EHA is commonly used on ships to provide power. The EHA power unit needs to be connected to a hydraulic oil tank to facilitate the supply and return of oil to the electro-hydraulic actuator.

[0003] Existing marine EHA power unit hydraulic oil tanks are not convenient for filtering solid particles in the hydraulic oil to improve purity, are not convenient for recycling, and are not convenient for cleaning or replacing metal filter screens. Utility Model Content

[0004] To address the problems in the existing technology, this utility model provides a hydraulic oil tank for marine EHA power units. The hydraulic oil tank for marine EHA power units facilitates the filtering of solid particles in the hydraulic oil, improves purity, facilitates recycling, and makes it easy to clean or replace the metal filter screen.

[0005] The technical solution adopted by this utility model to solve its technical problem is a hydraulic oil tank for marine EHA power unit, including an oil tank body, an inlet and a return port. The top of the oil tank body is provided with an inlet and a vent is provided on one side of the inlet. The top side of the oil tank body is provided with a return port. A filter screen limiting groove is provided in the return port and a metal filter screen is installed in the filter screen limiting groove by screws. A sealing cap is installed at one end of the return port by a clamping bolt.

[0006] A return pipe is connected to one side of the sealing cap, and a sealing valve B is installed on the return pipe. An oil pump is installed on one side of the bottom of the oil tank body via a mounting base.

[0007] By adopting the above technical solution, the hydraulic oil tank for marine EHA power units can easily filter solid particles in the hydraulic oil, improve purity, facilitate recycling, and make it easy to clean or replace the metal filter screen.

[0008] Specifically, the output port of the oil pump is connected to the oil pipeline and a sealing valve A is installed on the oil pipeline, while the input port of the oil pump is located inside the oil tank body.

[0009] Specifically, a sealing cap is fitted onto the top of the filling port, and an air vent plug is provided on the top of the air vent.

[0010] By adopting the above technical solution and opening the vent plug, it is easier to expel the gas in the main body of the oil tank when adding hydraulic oil, avoiding air resistance and ensuring that the main body of the oil tank is filled with oil.

[0011] Specifically, an ultrasonic level gauge is installed at one end of the air exchange port by screws, and the detection end of the ultrasonic level gauge is located inside the oil tank body.

[0012] By adopting the above technical solution, the ultrasonic level gauge can easily measure the liquid level by utilizing the propagation characteristics of sound waves in the air, making it easy to display the liquid level and for personnel to know.

[0013] Specifically, a sealing ring is bonded to the outer periphery of the engagement surface of the reflux port, and the sealing ring is specifically made of silicone rubber.

[0014] Specifically, mounting plates are welded to both sides of the bottom of the main body of the fuel tank, and mounting bolts are provided on the mounting plates.

[0015] The beneficial effects of this utility model are:

[0016] (1) The hydraulic oil tank for marine EHA power unit described in this utility model can be opened to facilitate the addition of hydraulic oil through the filling port, and the vent plug can be opened to facilitate the discharge of gas in the tank body when adding hydraulic oil, avoiding air resistance and ensuring that the oil fills the tank body. The ultrasonic level gauge can be used to measure the liquid level by utilizing the propagation characteristics of sound waves in the air, making it easy to display the liquid level and for personnel to know. One end of the oil supply pipe is connected to the oil inlet of the electric hydrostatic actuator, and the return pipe is connected to the oil outlet of the electric hydrostatic actuator.

[0017] (2) The hydraulic oil tank for marine EHA power unit described in this utility model is opened by opening the sealing valve A on the oil supply pipe, and the hydraulic oil is easily drawn into the electro-hydraulic actuator by the oil supply pump. The sealing valve B is opened, and the hydraulic oil in the electro-hydraulic actuator is easily returned to the main body of the oil tank by the return pipe. The metal filter screen in the return port is used to filter out solid particles in the hydraulic oil, improve the purity, and facilitate recycling. When the use is stopped, the sealing cover is removed to facilitate cleaning or replacement of the metal filter screen. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the reflux port structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the reflux port of this utility model.

[0022] In the diagram: 1. Mounting plate; 2. Mounting bolts; 3. Oil tank body; 4. Vent port; 5. Ultrasonic level gauge; 6. Vent plug; 7. Sealing cap; 8. Adding port; 9. Return port; 10. Sealing valve B; 11. Sealing cover; 12. Return pipe; 13. Oil delivery pipe; 14. Oil pump; 15. Sealing ring; 16. Metal filter screen; 17. Clamping bolts; 18. Filter screen limiting groove. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] To facilitate the filtration of solid particles in the hydraulic oil of the marine EHA power unit hydraulic oil tank, improve purity, facilitate recycling, and make it easy to clean or replace the metal filter screen 16, such as... Figure 1-3 As shown, the hydraulic oil tank for a marine EHA power unit according to this utility model includes an oil tank body 3, an inlet 8 and a return port 9. The inlet 8 is provided on the top of the oil tank body 3 and a vent 4 is provided on one side of the inlet 8. The return port 9 is provided on one side of the top of the oil tank body 3. A filter screen limiting groove 18 is provided in the return port 9 and a metal filter screen 16 is installed in the filter screen limiting groove 18 by screws. A sealing cap 11 is installed at one end of the return port 9 by a clamping bolt 17.

[0025] A return pipe 12 is connected to one side of the sealing cap 11, and a sealing valve B10 is provided on the return pipe 12. An oil pump 14 is installed on one side of the bottom of the oil tank body 3 through a mounting base.

[0026] When in use, the hydraulic oil tank of the marine EHA power unit facilitates the filtering of solid particles in the hydraulic oil, improves purity, facilitates recycling, and makes it easy to clean or replace the metal filter screen 16.

[0027] For example, such as Figure 1 As shown, the present invention also includes an oil pump 14 whose output port is connected to an oil pipe 13 and a sealing valve A is provided on the oil pipe 13, and the input port of the oil pump 14 is located inside the oil tank body 3.

[0028] When in use, open the sealing valve A on the oil supply pipe 13, and use the oil supply pump 14 to easily draw hydraulic oil into the electro-hydraulic actuator.

[0029] For example, such as Figure 1 As shown, the present invention also includes a sealing cap 7 that engages with the top of the adding port 8, and an air exchange plug 6 that is provided on the top of the air exchange port 4.

[0030] When in use, open the vent plug 6 to facilitate the release of gas from the oil tank body 3 when adding hydraulic oil, avoid air blockage, and ensure that the oil tank body 3 is full of oil.

[0031] For example, such as Figure 1 As shown, the present invention also includes an ultrasonic level gauge 5 installed at one end of the air exchange port 4 by screws, and the detection end of the ultrasonic level gauge 5 is located inside the oil tank body 3.

[0032] When in use, the ultrasonic level gauge 5 makes it easy to measure the liquid level by utilizing the propagation characteristics of sound waves in the air, making it easy to display the liquid level and for personnel to know.

[0033] For example, such as Figure 1 , 3 As shown, the present invention also includes a sealing ring 15 bonded to the outer periphery of the engagement surface of the return port 9, wherein the sealing ring 15 is specifically made of silicone rubber material.

[0034] When in use, silicone rubber material has high elasticity, good toughness, and excellent sealing effect, making it less prone to leakage.

[0035] For example, such as Figure 1 As shown, the present invention also includes mounting plates 1 welded to both sides of the bottom of the oil tank body 3, and mounting bolts 2 are provided on the mounting plates 1.

[0036] When in use, the fuel tank body 3 can be easily installed in the ship's hull using the mounting bolts 2 on the mounting plate 1.

[0037] When using this utility model, opening the sealing cover 7 and using the filling port 8 makes it easy to add hydraulic oil, and opening the vent plug 6 makes it easy to expel the gas in the oil tank body 3 when adding hydraulic oil, avoiding air resistance and ensuring that the oil tank body 3 is full of oil.

[0038] The ultrasonic level gauge 5 is used to measure the liquid level by utilizing the propagation characteristics of sound waves in the air. The liquid level is easy to display and easy for personnel to know. One end of the oil supply pipe 13 is connected to the oil inlet of the electric hydrostatic actuator, and the return pipe 12 is connected to the oil outlet of the electric hydrostatic actuator. The sealing valve A on the oil supply pipe 13 is opened, and the oil pump 14 is used to draw hydraulic oil into the electric hydrostatic actuator.

[0039] Open the sealing valve B10 to facilitate the return of hydraulic oil from the electro-hydraulic actuator to the main body of the oil tank 3 via the return pipe 12. The metal filter screen 16 in the return port 9 facilitates the filtering of solid particles in the hydraulic oil, improving purity and facilitating recycling. When not in use, remove the sealing cover 11 to facilitate cleaning or replacement of the metal filter screen 16.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A hydraulic oil tank for a marine EHA power unit, characterized in that, The tank includes a main body (3), an inlet (8) and a return port (9). The main body (3) has an inlet (8) at the top and an air vent (4) on one side of the inlet (8). The main body (3) has a return port (9) on one side of the top. The return port (9) has a filter screen limiting groove (18) and a metal filter screen (16) is installed in the filter screen limiting groove (18) by screws. One end of the return port (9) is fitted with a sealing cap (11) by a clamping bolt (17). A return pipe (12) is connected to one side of the sealing cover (11), and a sealing valve B (10) is provided on the return pipe (12). An oil pump (14) is installed on one side of the bottom of the oil tank body (3) through a mounting seat.

2. The hydraulic oil tank for a marine EHA power unit according to claim 1, characterized in that, The output port of the oil pump (14) is connected to the oil pipe (13) and a sealing valve A is provided on the oil pipe (13). The input port of the oil pump (14) is located inside the oil tank body (3).

3. A hydraulic oil tank for a marine EHA power unit according to claim 1, characterized in that, The top of the adding port (8) is fitted with a sealing cap (7), and the top of the air exchange port (4) is provided with an air exchange plug (6).

4. A hydraulic oil tank for a marine EHA power unit according to claim 1, characterized in that, One end of the air exchange port (4) is fitted with an ultrasonic level gauge (5) by screws, and the detection end of the ultrasonic level gauge (5) is located inside the oil tank body (3).

5. A hydraulic oil tank for a marine EHA power unit according to claim 1, characterized in that, A sealing ring (15) is bonded to the outer periphery of the engagement surface of the return port (9), and the sealing ring (15) is specifically made of silicone rubber material.

6. A hydraulic oil tank for a marine EHA power unit according to claim 1, characterized in that, The bottom sides of the main body (3) of the oil tank are welded with mounting plates (1) and mounting bolts (2) are provided on the mounting plates (1).

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