Small hydraulic oil tank

Abstract

A small hydraulic oil tank comprises a barrel, an oil filling port is formed in the upper end of the barrel, a detachable ventilation valve is connected to the oil filling port, a barrel opening is formed in the lower end of the barrel, the barrel opening of the barrel is installed on a base in a sealed mode, and an oil port used for being connected with a hand pump is formed in the middle of the base. The oil storage device serves as oil storage equipment, is connected with a pipeline through an oil port in the bottom and is connected into a hydraulic system. The upper ventilation valve is good in waterproof ventilation performance, can prevent external water, oil and other impurities from entering the oil tank and polluting oil, and can also prevent internal oil from overflowing out of the oil tank in the system operation process. Normal operation of the hydraulic system can be guaranteed in various application scenes, detection times are reduced, and the hydraulic system detection device is high in adaptability, small in size, good in portability, convenient to disassemble and assemble, simple in structure and low in manufacturing cost.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulics, and particularly relates to a small hydraulic oil tank. Background Art

[0002] In a small hydraulic system, an oil tank supplies oil to the small hydraulic system. An oil drain port is arranged at the bottom of the oil tank, and a suction port on the side of the oil tank is connected to a hand pump. During the operation of the small hydraulic system, when the hand pump is shaken, the oil will automatically enter the system through the suction port on the side of the oil tank and the pipeline. When the small hydraulic system is used for vehicle operation and is in a complex topographical and geological environment, the liquid level of the oil in the oil tank inclines, resulting in no hydraulic oil at the suction port. Shaking the hand pump cannot smoothly suck the oil into the system, resulting in the abnormal operation of the hydraulic system. It is necessary to frequently stop the machine to check for faults, which is time-consuming and laborious. Summary of the Invention

[0003] The purpose of the utility model is to overcome the above-mentioned deficiencies of the prior art, and provide a small hydraulic oil tank, which can ensure the normal operation of the hydraulic system in various application scenarios, reduce the number of detections, and has strong adaptability.

[0004] The technical solution of the utility model is: a small hydraulic oil tank, including a cylinder body. An oil filling port is arranged at the upper end of the cylinder body, and a detachable breather valve is connected to the oil filling port. The lower end of the cylinder body is a cylinder opening, and the cylinder opening of the cylinder body is hermetically installed on a base. An oil port for connecting to a hand pump is arranged in the middle of the base.

[0005] The base includes a connecting disk and a connecting neck connected to the middle of the connecting disk. The side of the connecting neck is hermetically connected to the inner wall of the cylinder opening through an O-ring seal No. 2. The connection between the connecting neck and the connecting disk and the cylinder opening of the cylinder body are hermetically connected through a gasket.

[0006] A flange corresponding to the connecting disk of the base is arranged outside the cylinder opening of the cylinder body, and the connecting disk is detachably connected to the flange through bolts.

[0007] Through holes for cooperating with the bolts are arranged on the connecting disk and the flange.

[0008] A ring of outwardly protruding flanges is arranged at the cylinder opening of the cylinder body, and a flange is arranged outside the flanges.

[0009] The cylinder body is a stamping integral forming structure.

[0010] The oil port is a stepped structure, including a large port part located in the middle of the connecting neck and a small port part located in the middle of the connecting disk.

[0011] Both the orifice and the bottom of the large port part are chamfered.

[0012] Threaded holes for cooperating with the mounting seat are arranged on the base.

[0013] The gasket is an arc-shaped gasket, and the arc surface of the arc-shaped gasket is adapted to the flange.

[0014] The cylindrical part of the hydraulic oil tank is integrally formed by stamping, with a simple structure, fast and convenient manufacturing, low cost, and the material is carbon steel or stainless steel. It is equipped with a breather valve at the upper part, which can quickly absorb or discharge air according to the inflow and outflow of the oil in the tank, prevent external water and oil from entering, and also prevent the oil in the tank from overflowing. An O-ring seal is provided between the cylinder body and the base to prevent oil leakage. The base has British standard pipe thread oil ports and threaded holes. The oil ports are convenient for connecting hydraulic pipelines. The upper threaded hole is connected to the cylinder body, and the lower threaded hole is used for the installation of the entire oil tank.

[0015] The utility model is a small oil tank with a breather function for storing oil in a hydraulic system, which can be widely applied to the field of track engineering machinery. It is installed through the threaded holes at the bottom and connected to the hydraulic system through the oil ports at the bottom. It can supplement oil to the hydraulic system and store the excess oil in the hydraulic system. The upper breather valve has good waterproof and breathable performance, which can prevent external water, oil and other impurities from entering the oil tank and polluting the oil, and can also prevent the internal oil from overflowing the oil tank during the operation of the system. The breather valve can also be a pre-pressurized type, so that the inside of the hydraulic oil tank has a certain pressure, which is convenient for quickly supplementing oil. The utility model has a small volume, good transplantability, convenient disassembly and assembly, simple structure and low manufacturing cost. Brief Description of the Drawings

[0016] Figure 1 is a schematic structural view of the utility model;

[0017] Figure 2 is Figure 1 a partial enlarged view of

[0018] Figure 3 is a top view of the utility model. Detailed Description of the Preferred Embodiment

[0019] The following further details the present utility model in conjunction with the accompanying drawings. The embodiment is only used to explain the present utility model and does not limit the protection scope of the present utility model.

[0020] Such as Figures 1-3In this case, the present utility model includes a small hydraulic oil tank composed of a breather valve 1, a cylinder body 3, bolts 4, spring washers 5, O-ring seals II 6, and a base 7. The cylinder body 3 is the core component of the hydraulic oil tank, mainly used to store oil. It is a cylindrical structure formed by stamping in one piece, with a simple structure and convenient manufacturing. The breather valve 1 is formed by riveting and pressing in one piece, with a simple structure, stable performance, easy installation, long service life, and high waterproof and breathable performance. The breather valve 1 is connected to the top filling port of the cylinder body 3 through threads or snap connections, and is sealed by an O-ring seal I 2. The lower part of the cylinder body 3 is connected to the base 7 through bolts 4 and spring washers 5. The hydraulic oil tank is connected to the hydraulic system through the oil port 9 at the bottom. The entire hydraulic oil tank is installed through the threaded hole 8 at the lower part of the base 7. The base 7 is mainly used to connect the pipelines for the inlet and outlet of the hydraulic oil tank and the installation of the oil tank. The upper part of the base 7 is connected to the cylinder body, and the connection part is sealed by an O-ring seal II 6 and a gasket 11. The lower part of the base 7 is provided with an oil port 9 for easy connection to a hand pump, and the threaded hole 8 is for easy installation of the oil tank.

[0021] The base 7 includes a connection disk 71 and a connection neck 72 connected to the middle of the connection disk. A stepped portion is formed at the connection between the connection neck 72 and the connection disk 71. The side of the connection neck 72 is sealed and connected to the inner wall of the cylinder mouth through an O-ring seal II 6, and the cylinder mouth of the cylinder body 3 is sealed and connected to the stepped portion through a gasket 11. The oil port 9 is a stepped structure, including a large mouth portion 92 located in the middle of the connection neck and a small mouth portion 91 located in the middle of the connection disk.

[0022] There is a flange disk 12 corresponding to the connection disk 71 of the base 7 outside the cylinder mouth of the cylinder body 3, and the connection disk 71 is detachably connected to the flange disk 12 through bolts 4.

[0023] In actual use, the small hydraulic oil tank is installed on the mounting base through the threaded hole 8 at the lower part of the base 7. The mounting base can be designed according to the actual situation on site. The volume of the small hydraulic oil tank is 1 - 2L. The hydraulic pipeline is connected through the oil port 9, so that the oil tank is connected to the hydraulic system. Unscrew the breather valve 1, and an appropriate amount of hydraulic oil can be added into the oil tank according to the oil consumption of the hydraulic system, and then the breather valve is reinstalled. The oil port 9 is connected to the inlet of the hand pump. When the hand pump is not working, the oil will not flow away. During the operation of the hydraulic system, the oil will automatically enter the system through the oil port 9, the hand pump, and the pipeline. External air enters the oil tank through the pre-pressure breather valve 1 to maintain stable pressure and prevent external water, oil, etc. from entering the tank and polluting the hydraulic system. When the hydraulic system stops working, the oil will return to the oil tank, and the air in the tank will be discharged through the breather valve 1. The breather valve 1 will prevent the oil in the tank from overflowing.

[0024] The above description in combination with the attached drawings is only a description of a specific implementation manner of the present utility model, and does not limit the technical solution of the present invention thereto. Any equivalent changes in hydraulic principles and shape modifications made according to the spirit and essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A small hydraulic oil tank, characterized in that: The invention comprises a cylinder (3), wherein the upper end of the cylinder (3) is provided with a refueling port, the refueling port is connected to a detachable air-permeable valve (1), the lower end of the cylinder (3) is a cylinder mouth, the cylinder mouth of the cylinder (3) is sealed and mounted on a base (7), and the middle part of the base (7) is provided with an oil port (9) for connecting to a hand pump.

2. The small hydraulic oil tank according to claim 1, characterized in that: The base (7) comprises a connecting plate (71), a connecting neck (72) connected to the middle of the connecting plate, the side of the connecting neck (72) being sealed to the inner wall of the barrel mouth via an O-ring 2 (6), and the connection point between the connecting neck (72) and the connecting plate (71) and the barrel mouth of the barrel body (3) being sealed to each other via a sealing gasket (11).

3. The small hydraulic oil tank according to claim 2, characterized in that: A flange (12) corresponding to the connecting plate (71) of the base (7) is provided outside the opening of the cylinder (3), and the connecting plate (71) is detachably connected to the flange (12) via bolts (4).

4. The small hydraulic oil tank according to claim 3, characterized in that: The connecting plate and the flange plate are provided with through holes that cooperate with the bolts (4).

5. The small hydraulic oil tank according to claim 2, characterized in that: The mouth of the cylinder (3) has a flange protruding outwards, and a flange is arranged outside the flange.

6. The small hydraulic oil tank according to claim 1, characterized in that: The cylinder is a stamping integrally formed structure.

7. The small hydraulic oil tank according to claim 2, characterized in that: The oil port is a step-shaped structure, comprising a large port (92) located in the middle of the connecting neck and a small port (91) located in the middle of the connecting disk.

8. The small hydraulic oil tank according to claim 7, characterized in that: The opening and bottom of the large mouth are chamfered.

9. The small hydraulic oil tank according to claim 1, characterized in that: The base (7) has a threaded hole (8) for mounting in cooperation with the mounting seat.

10. The small hydraulic oil tank according to claim 5, characterized in that: The sealing gasket (11) is an arc-shaped sealing gasket, and the arc surface of the arc-shaped sealing gasket is matched with the flange.

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