EHA integrated hydraulic oil tank

Abstract

The application relates to an EHA integrated hydraulic oil tank, which comprises an oil tank body, the body is a ring-shaped hollow structure, the inside of the body is provided with a ring-shaped cavity for storing hydraulic oil; the body is sleeved on the surface of an oil cylinder; a through hole for the flow of hydraulic oil is arranged at the bottom of the body; an assembling body for fixing the hydraulic oil tank and the oil cylinder and connecting the hydraulic oil tank and the oil cylinder is connected to the bottom of the body; the assembling body comprises a fixing piece; the fixing piece is fixedly connected to the bottom of the body through bolts; the fixing piece is sleeved on the surface of the oil cylinder; a plurality of fixing blocks for fixedly connecting the oil cylinder are connected to the bottom of the fixing piece; the inside of the fixing block is provided with an oil passage for the flow of hydraulic oil; the application can be sleeved on the outside of the oil cylinder, fixed on the oil cylinder and connected through a plate type connection to replace pipeline connection, so that space is saved and the sealing performance is better.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of integrated hydraulic oil tanks, and particularly relates to an EHA integrated hydraulic oil tank. BACKGROUND

[0002] Domestic aircraft ground auxiliary equipment has a narrow space, and an oil tank provides hydraulic oil to a system when the equipment hydraulic system is working. A conventional oil tank is a tank body structure, a cylinder is generally a circular column structure, and a pipe connection mode is generally used for connecting the hydraulic system and the cylinder, the conventional oil tank does not have a transportation sealing function, and the equipment has a narrow space, and therefore needs to be separately fixed and installed at a position for use, which is extremely inconvenient. Therefore, an integrated hydraulic oil tank capable of being arranged on the outer surface of a cylinder and applied to a narrow space of aircraft ground auxiliary equipment needs to be provided. SUMMARY

[0003] The application aims to provide an EHA integrated hydraulic oil tank, the hydraulic oil tank body is arranged in a ring-shaped hollow structure, the inside of the body has a ring-shaped cavity for storing hydraulic oil, the body is sleeved on the surface of a cylinder, and the ring-shaped plate type connection is used between the hydraulic oil tank and the cylinder, so that the hydraulic oil can be sealed and stored when the equipment needs to be transported, and the hydraulic oil can be prevented from flowing out during the equipment transportation.

[0004] To achieve the above-mentioned purpose, the application provides the following technical scheme.

[0005] The application provides an EHA integrated hydraulic oil tank, which comprises an oil tank body, the body is arranged in a ring-shaped hollow structure, the inside of the body has a ring-shaped cavity for storing hydraulic oil, the body is sleeved on the surface of a cylinder, the bottom of the body is provided with a through hole for the flow of hydraulic oil, the bottom of the body is connected with an assembly for fixing the hydraulic oil tank and the cylinder and connecting the oil circuit of the hydraulic oil tank and the cylinder, the assembly comprises a fixing member, the fixing member is fixedly connected with the body through bolts at the bottom of the body, the fixing member is sleeved on the surface of the cylinder, the bottom of the fixing member is connected with a plurality of fixing blocks for fixing the cylinder, and the inside of the fixing block is provided with an oil circuit channel for the flow of hydraulic oil.

[0006] Specifically, the cavity outer surface is provided with a joint, the joint is fixedly installed with an exhaust assembly and a liquid level meter, the exhaust assembly comprises an air filter, an exhaust joint and a filter piece, the exhaust joint is rotationally connected to the upper surface of the cavity, the filter piece is embedded at the connection position of the exhaust joint and the upper surface of the cavity, and one end of the exhaust joint is connected with the air filter.

[0007] Specifically, the assembly body side is welded with an oil intercepting and discharging device; the oil intercepting and discharging device is provided with an oil inlet channel and an oil outlet channel; the oil inlet channel is arranged in alignment with the bottom through hole of the body, and the size of the oil inlet channel is the same as that of the bottom through hole of the body; the oil outlet channel is arranged in alignment with the inlet of the oil passage channel, and the size of the oil outlet channel is the same as that of the inlet of the oil passage channel.

[0008] Specifically, a sealing ring is arranged between the oil inlet channel and the bottom through hole of the body; and a sealing ring is arranged between the oil outlet channel and the inlet of the oil passage channel.

[0009] Specifically, the oil intercepting and discharging device further has an oil intercepting and discharging channel, the oil intercepting and discharging channel communicates the oil inlet channel and the oil outlet channel; the rear end portion of the surface of the oil intercepting and discharging channel is embedded with threads; the oil intercepting and discharging channel is provided with an oil intercepting and discharging screw; the shape of the oil intercepting and discharging screw is matched with that of the oil intercepting and discharging channel; the rear end surface of the oil intercepting and discharging screw is provided with threads matched with the surface of the oil intercepting and discharging channel, and the oil intercepting and discharging screw is controlled to enter and exit the oil intercepting and discharging channel in a rotating manner.

[0010] Specifically, the oil intercepting and discharging device further comprises a limiting plate; the limiting plate is fixed on one side of the oil intercepting and discharging device through bolts, and the limiting plate is provided with a through hole through which the oil intercepting and discharging screw passes, and the center of the through hole is arranged in alignment with the center of the oil intercepting and discharging channel.

[0011] Specifically, the limiting plate is provided with a groove; a limiting boss is formed between the groove and the through hole on the limiting plate to prevent the oil intercepting and discharging screw from falling off when it is rotated out of the oil intercepting and discharging channel.

[0012] Specifically, a sealing ring is arranged between the oil intercepting and discharging screw and the oil intercepting and discharging channel, and the sealing ring is located rearward of the connection between the oil intercepting and discharging channel and the oil outlet channel.

[0013] Specifically, the top of the cavity is further provided with a breather plug, and the breather plug is opened to discharge air in the cavity when oil is injected into the oil tank.

[0014] Specifically, a crescent ring is clamped on the inner surface of the assembly body to fix the assembly body and the surface of the oil cylinder.

[0015] Based on the above technical scheme, the embodiment of the present application can at least produce the following technical effects:

[0016] (1) The EHA integrated hydraulic oil tank provided by the present application has a hollow annular shape, can be sleeved on the outside of a circular oil cylinder, is provided with a crescent ring to be fixed on the oil cylinder, and has a fixed block at the bottom to connect the oil tank and the oil cylinder and connect the hydraulic oil tank and the oil passage of the oil cylinder.

[0017] (2) The EHA integrated hydraulic oil tank provided by the application is provided with an air filter, an exhaust joint and a filter piece on the upper part of the oil tank. After the exhaust joint is screwed, the air filter channel is closed, the oil tank is sealed, and the hydraulic oil is prevented from flowing out of the air filter during the transportation of the equipment. When the exhaust joint is unscrewed by a certain distance, the air filter channel is opened, so that the oil tank can work normally. The filter piece can filter the hydraulic oil injected into the oil tank. The breather plug is opened when the oil tank is filled with oil, so as to realize the oil injection and exhaust function of the oil cylinder.

[0018] (3) The EHA integrated hydraulic oil tank provided by the application is provided with an oil cutting and discharging device. When the oil cutting screw is screwed, the outlet of the oil tank can be closed. The oil tank can be easily disassembled and assembled for maintenance. When the oil cutting screw is unscrewed, the hydraulic oil can flow out of the oil tank and enter the hydraulic system. The oil tank can provide hydraulic oil for the system when the equipment is working, and can seal the hydraulic oil to prevent it from flowing out during the transportation of the equipment.

[0019] (4) The EHA integrated hydraulic oil tank provided by the application can be fixed on the oil cylinder outside the oil cylinder and connected by a plate instead of a pipeline, so as to save space and improve the sealing performance. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a schematic view of the overall structure of the embodiment of the application;

[0021] Figure 2 is a sectional view of the overall structure of the embodiment of the application;

[0022] Figure 3 is a schematic view of the oil cutting and discharging device of the embodiment of the application;

[0023] Figure 4 is a schematic view of the assembly screw of the oil cutting and discharging device of the embodiment of the application;

[0024] In the figure, 1 is a body, 110 is an exhaust assembly, 120 is a liquid level meter, 130 is a cavity, 2 is an assembly, 210 is an oil cutting and discharging device, 211 is an oil inlet channel, 212 is an oil outlet channel, 213 is an oil cutting and discharging channel, 214 is a limiting plate, 215 is an oil cutting and discharging screw, 220 is a fixing block, and 230 is a crescent ring. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the application clearer, the technical scheme of the application will be described in detail below. The described embodiments are only some of the embodiments of the application, but not all the embodiments. The application will be further described in detail below in combination with the embodiments of the drawings.

[0026] As Figures 1-2As shown, the embodiment of the present application provides an EHA integrated hydraulic oil tank, which comprises an oil tank body 1, the body 1 is a ring-shaped hollow structure, the inside of the body 1 has a ring-shaped cavity 130 for storing hydraulic oil; the body 1 is sleeved on the surface of the oil cylinder; the bottom of the body 1 is connected with an assembly body 2 for fixing the hydraulic oil tank and the oil cylinder and connecting the hydraulic oil tank and the oil cylinder oil circuit; the bottom of the body 1 is provided with a through hole for the flow of hydraulic oil into the assembly body 2; the assembly body 2 comprises a fixing piece; the fixing piece is fixedly connected with the body 1 at the bottom of the body 1 through bolts, a through hole with the same size as the through hole at the bottom of the body 1 is correspondingly arranged on the fixing piece, a sealing ring is arranged at the connection of the two through holes to avoid hydraulic oil leakage; the fixing piece is sleeved on the surface of the oil cylinder, the inner surface is clamped with a crescent ring 230 for fixing the assembly body 2 and the surface of the oil cylinder to avoid the loosening of the assembly body 2; a plurality of fixing blocks 220 are bolted at the bottom of the fixing piece, one end of the fixing block 220 is also fixedly connected with the oil cylinder through a bolt; the inside of the fixing block 220 is provided with an oil circuit passage for the flow of hydraulic oil, the inlet of the oil circuit passage is sealingly communicated with the assembly body 2; the outlet of the oil circuit passage is sealingly communicated with the oil circuit of the oil cylinder.

[0027] In the embodiment, as Figures 2-4As shown, specifically, the outer surface of the fixing member is welded with an oil intercepting and discharging device 210; the oil intercepting and discharging device 210 is longitudinally provided with an oil inlet channel 211 and an oil outlet channel 212, and is transversely provided with an oil intercepting and discharging channel 213; the inlet of the oil inlet channel 211 is arranged in alignment with the through hole on the fixing member, and the size of the inlet of the oil inlet channel 211 is the same as that of the through hole on the fixing member; the outlet of the oil outlet channel 212 is the same in size as the inlet of the oil passage of the fixing block 220; the oil inlet channel 211 and the oil outlet channel 212 are respectively located on the two sides of the oil intercepting and discharging channel 213; the oil intercepting and discharging channel 213 communicates the oil inlet channel 211 and the oil outlet channel 212; the rear end portion of the oil intercepting and discharging channel 213 is embedded with threads; the oil intercepting and discharging channel 213 is installed with an oil intercepting and discharging screw 215; the shape of the oil intercepting and discharging screw 215 is matched with that of the oil intercepting and discharging channel 213; the surface of the rear end of the oil intercepting and discharging screw 215 is provided with threads matched with the surface of the oil intercepting and discharging channel 213, and the oil intercepting and discharging screw 215 is controlled to enter or exit the oil intercepting and discharging channel 213 in a rotating manner, so as to control the opening or closing of the passage formed between the oil inlet channel 211, the oil outlet channel 212 and the oil intercepting and discharging channel 213; the oil intercepting and discharging screw 215 is rotated outward, the screw is withdrawn outward, the gap at the connection between the oil inlet channel 211, the oil outlet channel 212 and the oil intercepting and discharging channel 213 is opened, and the hydraulic oil discharging operation is realized; the oil intercepting and discharging screw 215 is screwed inward, the screw is screwed inward tightly, the gap at the connection between the oil inlet channel 211, the oil outlet channel 212 and the oil intercepting and discharging channel 213 is closed, and the hydraulic oil intercepting operation is realized; specifically, a sealing ring is arranged between the oil intercepting and discharging screw 215 and the oil intercepting and discharging channel 213, and the sealing ring is located rearward of the connection between the oil intercepting and discharging channel 213 and the oil outlet channel 212, so as to avoid the leakage of hydraulic oil from the oil intercepting and discharging channel 213.

[0028] In the embodiment, specifically, a sealing ring is arranged between the position of the inlet of the oil inlet channel 211 and the position of the through hole on the fixing member; a sealing ring is arranged between the position of the outlet of the oil outlet channel 212 and the position of the inlet of the oil passage of the fixing block 220; the hydraulic oil in the cavity 130 flows into the oil passage inside the oil intercepting and discharging device 210 through the through hole at the bottom of the body 1, and then flows into the oil cylinder of the hydraulic system through the fixing block 220.

[0029] In the embodiment, as shown in Figure 3As shown, specifically, the oil cutting and discharging device 210 further comprises a limiting plate 214; the limiting plate 214 is fixed on one side surface of the oil cutting and discharging device 210 through bolts, and a through hole, through which the oil cutting and discharging screw 215 passes, is arranged on the limiting plate 214, and the center of the through hole is arranged in alignment with the center of the oil cutting and discharging channel 213; specifically, a recess is arranged on the limiting plate 214; a limiting boss is formed between the recess and the through hole on the limiting plate 214, so as to avoid the oil cutting and discharging screw 215 from falling off when the oil cutting and discharging screw 215 is rotated out of the oil cutting and discharging channel 213.

[0030] In the embodiment, as shown in the figure, Figure 1 The top of the cavity 130 is further provided with a gas exchange plug, the gas exchange plug is opened when oil is injected into the oil tank to discharge gas in the cavity 130; an adapter is arranged on the outer surface of the cavity 130, and the adapter is fixedly installed with the exhaust assembly 110 and the liquid level meter 120; the exhaust assembly 110 comprises an air filter, an exhaust adapter and a filter piece; the exhaust adapter is rotatably connected to the upper surface of the cavity 130, and the filter piece is embedded at the connection between the exhaust adapter and the upper surface of the cavity 130; the exhaust adapter is connected with the air filter at one end;

[0031] The EHA integrated hydraulic oil tank provided by the embodiment can close the air filter channel after the exhaust adapter is screwed, so that the oil tank is closed, and the hydraulic oil is prevented from flowing out of the air filter during transportation of the equipment; when the exhaust adapter is rotated out by a certain distance, the air filter channel is opened, so that the oil tank can work normally. The filter piece can filter the hydraulic oil injected into the oil tank; the gas exchange plug is opened when the oil tank is filled with oil, so that the oil cylinder can be filled with oil and discharged.

[0032] The EHA integrated hydraulic oil tank provided by the embodiment can close the oil tank outlet by screwing the oil cutting screw, so that the oil tank is closed, and the hydraulic oil is prevented from flowing out of the air filter during transportation of the equipment; when the exhaust adapter is rotated out by a certain distance, the air filter channel is opened, so that the oil tank can work normally. The filter piece can filter the hydraulic oil injected into the oil tank; the gas exchange plug is opened when the oil tank is filled with oil, so that the oil cylinder can be filled with oil and discharged.

[0033] The EHA integrated hydraulic oil tank provided by the embodiment is hollow and annular in shape, can be sleeved on the outer surface of a circular oil cylinder, and is provided with a crescent ring 230 to fix the oil tank on the oil cylinder; the fixed block 220 at the bottom of the oil tank serves to connect the oil tank and the oil cylinder and connect the hydraulic oil tank and the oil circuit of the oil cylinder; the plate type connection is used to replace the pipeline connection, so that the space is saved and the sealing performance is better.

[0034] It is to be understood that the present application is described by way of example only, and that modifications or alterations can be made to the features and embodiments described without departing from the spirit and scope of the application. In addition, modifications can be made to the features and embodiments described to accommodate specific situations and materials without departing from the spirit and scope of the application. Accordingly, the application is not limited to the specific embodiments disclosed herein, but rather, the scope of the application includes all embodiments falling within the scope of the claims.

Claims

1. An EHA integrated hydraulic tank comprising a tank body (1), characterized in that, The body (1) is a ring-shaped hollow structure, the inside of the body (1) has a ring-shaped cavity (130) for storing hydraulic oil; the body (1) is sleeved on the surface of the oil cylinder; the bottom of the body (1) is provided with a through hole for the flow of hydraulic oil; the bottom of the body (1) is connected with an assembly (2) for fixing the hydraulic oil tank and the oil cylinder and connecting the oil tank and the oil cylinder; the assembly (2) comprises a fixing member; the fixing member is fixedly connected to the bottom of the body (1) by bolts; the fixing member is sleeved on the surface of the oil cylinder, and the bottom of the fixing member is connected with a plurality of fixing blocks (220) for fixing the oil cylinder, and the inside of the fixing block (220) is provided with an oil passage for the flow of hydraulic oil; The outer surface of the cavity (130) is provided with a joint, and the joint is fixedly installed with an exhaust assembly (110) and a liquid level meter (120); the exhaust assembly (110) comprises an air filter, an exhaust joint and a filter piece; the exhaust joint is rotatably connected to the upper surface of the cavity (130), and the filter piece is embedded at the connection between the exhaust joint and the upper surface of the cavity (130); one end of the exhaust joint is connected with the air filter; The assembly (2) is welded with an oil intercepting and discharging device (210) on the side surface; the oil intercepting and discharging device (210) is provided with an oil inlet channel (211) and an oil outlet channel (212); the oil inlet channel (211) is arranged in alignment with the bottom through hole of the body (1), and the size of the oil inlet channel (211) is the same as that of the bottom through hole of the body (1); the oil outlet channel (212) is arranged in alignment with the inlet of the oil passage, and the size of the oil outlet channel (212) is the same as that of the inlet of the oil passage.

2. An EHA integrated hydraulic oil tank according to claim 1, characterized in that, Sealing rings are arranged between the oil inlet channel (211) and the bottom through hole of the body (1), and between the oil outlet channel (212) and the inlet of the oil passage.

3. The EHA integrated hydraulic oil tank of claim 1, wherein, The oil intercepting and discharging device (210) further comprises an oil intercepting and discharging channel (213), which communicates the oil inlet channel (211) and the oil outlet channel (212); the rear end surface of the oil intercepting and discharging channel (213) is embedded with threads; the oil intercepting and discharging channel (213) is installed with an oil intercepting and discharging screw (215); the shape of the oil intercepting and discharging screw (215) is matched with that of the oil intercepting and discharging channel (213); the rear end surface of the oil intercepting and discharging screw (215) is provided with threads matched with the surface of the oil intercepting and discharging channel (213), and the oil intercepting and discharging screw (215) is controlled to enter and exit the oil intercepting and discharging channel (213) by rotation.

4. An EHA integrated hydraulic oil tank according to claim 3, characterized in that, The oil intercepting and discharging device (210) further comprises a limiting plate (214); the limiting plate (214) is fixed on one side surface of the oil intercepting and discharging device (210) by bolts, and the limiting plate (214) is provided with a through hole through which the oil intercepting and discharging screw (215) passes, and the center of the through hole is arranged in alignment with the center of the oil intercepting and discharging channel (213).

5. An EHA integrated hydraulic oil tank according to claim 4, characterized in that, The limiting plate (214) is provided with a recess; the recess and the through hole on the limiting plate (214) form a limiting boss, which avoids the oil intercepting and discharging screw (215) from falling off when it is rotated out of the oil intercepting and discharging channel (213).

6. An EHA integrated hydraulic oil tank according to claim 4, characterized in that, The oil intercepting and discharging screw (215) and the oil intercepting and discharging channel (213) are provided with a sealing ring, which is located behind the connection between the oil intercepting and discharging channel (213) and the oil outlet channel (212).

7. The EHA integrated hydraulic oil tank of claim 1, wherein, The top of the cavity (130) is also provided with a breather plug, which is opened when the oil tank is filled with oil, so as to discharge the air in the cavity (130).

8. The EHA integrated hydraulic oil tank of claim 1, wherein, The inner surface of the assembly body (2) is clamped with a crescent ring (230) for fixing the assembly body (2) and the surface of the oil cylinder.

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