A detachable oil absorption cavity hydraulic oil tank

Abstract

This utility model discloses a hydraulic oil tank with a detachable oil suction chamber, comprising an oil tank mechanism that forms the oil storage and circulation environment of the hydraulic system. The tank mechanism includes a filter for filtering the hydraulic oil, a cylinder for storing the filtered hydraulic oil and supplying clean oil to the hydraulic system, and a separator to prevent hydraulic oil returning to the system from directly entering the cylinder without mixing, cooling, and settling. The oil tank mechanism and the cylinder share a cleaning and discharge mechanism for cleaning and oil discharge. This utility model, by detachably connecting the cylinder and the oil tank mechanism, allows the oil suction chamber to be disassembled and cleaned separately without disassembling the entire oil tank mechanism, significantly reducing maintenance workload and improving maintenance convenience. The combined use of the filter and separator mechanisms ensures that the hydraulic oil is fully cooled, settled, and filtered before entering the oil suction chamber, effectively protecting the hydraulic valves and improving oil cleanliness.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic oil tank technology, specifically relating to a hydraulic oil tank with a detachable oil suction chamber. Background Technology

[0002] In existing hydraulic systems, the suction chamber and return chamber of the hydraulic oil tank are usually separated by welded partitions. This structure has the following obvious drawbacks:

[0003] 1. When the fuel tank is large, the welding area of ​​the partition is large, which leads to increased labor and material costs;

[0004] Second, the welding process has high requirements and is prone to poor sealing, which causes unfiltered hydraulic oil in the return oil chamber to leak directly into the suction oil chamber, thereby damaging precision components such as hydraulic valves.

[0005] Third, the use of a partition structure results in a fixed oil suction chamber space, requiring the entire oil tank to be disassembled for cleaning, which is cumbersome and inefficient. Utility Model Content

[0006] The purpose of this invention is to provide a hydraulic oil tank with a detachable oil suction chamber to solve the technical problems of existing hydraulic oil tanks, such as large welding area of ​​the partition, high welding requirements, and large oil suction chamber area.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A hydraulic oil tank with a detachable oil suction chamber includes an oil tank mechanism that forms the oil storage and circulation environment of the hydraulic system. The oil tank mechanism is equipped with a filter mechanism for filtering hydraulic oil, a cylinder for storing filtered hydraulic oil and supplying clean oil to the hydraulic system, and a separation mechanism to prevent hydraulic oil after return from entering the cylinder directly without mixing, cooling and settling. The oil tank mechanism and the cylinder are jointly equipped with a cleaning and discharge mechanism for cleaning the interior of both and discharging the oil.

[0009] The cylinder is detachably connected to the oil tank mechanism and used in conjunction with the filter mechanism. One end of the cylinder is sealed and extends to the outside of the oil tank mechanism. The cylinder divides the inner cavity of the oil tank mechanism into independent cavities. An oil suction cavity is formed inside the cylinder, and an oil return cavity is formed inside the oil tank mechanism.

[0010] As a further embodiment of this utility model, the tank mechanism includes a U-shaped plate and an L-shaped plate. The U-shaped plate and the L-shaped plate are welded and fixed to form a container with an open upper structure. A cover plate that can seal the opening is fixedly connected to the top of the container. The cylinder is connected to the L-shaped plate through a detachable connection structure, and the filter mechanism is located on the cover plate.

[0011] As a preferred embodiment of this utility model, the L-shaped plate has a through hole for the cylinder to pass through, and the detachable connection structure between the cylinder and the L-shaped plate is any one of threaded connection, snap-fit ​​connection or flange connection.

[0012] As a preferred embodiment of this utility model, the filtration mechanism includes a return oil filter and a suction oil filter that are installed through the cover plate. The return oil filter is located directly above the cylinder, and the suction oil filter is connected to one end of the cylinder.

[0013] As a further embodiment of this utility model, the separating mechanism includes a partition plate fixedly connected to one side of the inner wall of the U-shaped plate. The partition plate is located between the return oil filter and the suction oil filter, and a groove adapted to the cylinder is provided at the bottom of the partition plate.

[0014] As a further embodiment of this utility model, the height of the baffle is not lower than the lowest working fluid level of the hydraulic oil in the return oil chamber, thus forming a fluid barrier.

[0015] As a preferred embodiment of this utility model, the cleaning and discharge mechanism includes a first discharge pipe connected to the surface of the cylinder and located at the lowest point of the bottom of the oil suction chamber, and a second discharge pipe connected to the bottom of the L-shaped plate and located at the lowest point of the bottom of the oil return chamber. Valves are installed on both the first discharge pipe and the second discharge pipe.

[0016] As a further embodiment of this utility model, the cleaning and discharge mechanism also includes a first cleaning opening at the end of the cylinder away from the oil suction filter, a second cleaning opening on one side of the surface of the U-shaped plate, a first cover that can seal the first cleaning opening detachably installed on the cylinder, and a second cover that can seal the second cleaning opening detachably installed on the U-shaped plate.

[0017] Compared with the prior art, the hydraulic oil tank with a detachable oil suction chamber of this utility model has the following advantages:

[0018] This invention utilizes a detachable connection between the cylinder and the oil tank mechanism, allowing the oil suction chamber to be disassembled and cleaned independently without the need for complete disassembly of the oil tank mechanism. This significantly reduces maintenance workload and improves maintenance convenience. The combined use of the filtration and separation mechanisms ensures that the hydraulic oil undergoes sufficient cooling, sedimentation, and filtration before entering the oil suction chamber, effectively protecting the hydraulic valves and improving oil cleanliness. The cleaning and discharge mechanism facilitates thorough removal of oil and water, ensuring complete cleaning of the chambers. It also allows for targeted cleaning of the two chambers separately, avoiding blind spots caused by interconnected chambers in traditional structures and improving cleaning effectiveness. The oil suction chamber can be in various shapes and its connection to the oil tank mechanism is flexible, adapting to different specifications of hydraulic systems and enhancing structural flexibility. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only examples of embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the exploded structure of an embodiment of the present utility model. Figure 1 ;

[0022] Figure 3 This is a schematic diagram of the exploded structure of an embodiment of the present utility model. Figure 2 ;

[0023] Figure 4 This is an exploded structural diagram of the cylinder and the dividing mechanism in an embodiment of this utility model.

[0024] Figure label:

[0025] 100. Fuel tank mechanism; 110. U-shaped plate; 120. L-shaped plate; 121. Through hole; 130. Cover plate;

[0026] 200. Filtration mechanism; 210. Return oil filter; 220. Suction oil filter;

[0027] 300. Cylinder body;

[0028] 400. Dividing mechanism; 410. Partition plate; 420. Groove;

[0029] 500, First discharge pipe; 600, Second discharge pipe; 700, First cover; 800, Second cover. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0031] In the description of the embodiments of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0032] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, an integral connection, or a detachable connection; they can refer to the internal connection of two components; they can refer to a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.

[0033] See appendix Figures 1-4 As shown in the figure, an embodiment of the present invention provides a hydraulic oil tank with a detachable oil suction chamber, including an oil tank mechanism 100 for constructing an oil storage and circulation environment for the hydraulic system, a filter mechanism 200 for filtering hydraulic oil, a cylinder 300 for storing filtered hydraulic oil and supplying clean oil to the hydraulic system, a separation mechanism 400 for preventing hydraulic oil after return from directly entering the cylinder 300 without mixing, cooling and settling, and a cleaning and discharge mechanism for cleaning the inside of the oil tank mechanism 100 and the cylinder 300 and discharging oil. 0. Both the cylinder 300 and the separating mechanism 400 are mounted on the oil tank mechanism 100, and the cleaning and discharge mechanism is mounted on the oil tank mechanism 100 and the cylinder 300. The cylinder 300 is detachably connected to the oil tank mechanism 100 and is used in conjunction with the filter mechanism 200. One end of the cylinder 300 is sealed and extends to the outside of the oil tank mechanism 100. The cylinder 300 divides the inner cavity of the oil tank mechanism 100 into independent cavities. An oil suction cavity is formed inside the cylinder 300, and an oil return cavity is formed inside the oil tank mechanism 100. The cross-sectional shape of the oil suction cavity is one of a circle, a square, or a polygon.

[0034] In order to provide an installation foundation for the filter mechanism 200, cylinder 300, separation mechanism 400 and cleaning and discharge mechanism, and to form an internal accommodating space for storing oil and creating a circulation environment, the oil tank mechanism 100 in this embodiment of the present invention includes a U-shaped plate 110 and an L-shaped plate 120. The U-shaped plate 110 and the L-shaped plate 120 are welded and fixed to form an accommodating box with an open upper structure. A cover plate 130 that can seal the opening is fixedly connected to the top of the accommodating box. The cylinder 300 is connected to the L-shaped plate 120 through a detachable connection structure. The filter mechanism 200 is disposed on the cover plate 130.

[0035] In order to ensure the airtightness of the internal space of the oil tank mechanism 100 and facilitate the independent maintenance of the cylinder 300, the L-shaped plate 120 is provided with a through hole 121 for the cylinder 300 to pass through. The detachable connection structure between the cylinder 300 and the L-shaped plate 120 can be any one of threaded connection, snap-fit ​​connection or flange connection.

[0036] To form a dual filtration process of "coarse filtration of return oil + fine filtration of suction oil", the filtration mechanism 200 includes a return oil filter 210 and a suction oil filter 220 installed through the cover plate 130. The return oil filter 210 is located directly above the cylinder 300, and the suction oil filter 220 is connected to one end of the cylinder 300. The return oil filter 210 performs preliminary filtration on the oil returning from the hydraulic system to the oil tank mechanism 100, intercepting impurities such as metal particles and seal fragments in the oil, and preventing unfiltered oil from directly entering the sedimentation area of ​​the return oil chamber. The suction oil filter 220 can perform secondary filtration on the oil after it has been cooled and settled in the return oil chamber, further removing fine impurities and ensuring that the cleanliness of the oil entering the hydraulic pump meets the system requirements. Compared with traditional single-stage filtration, it improves the impurity interception efficiency and effectively protects precision components such as hydraulic valves and pumps.

[0037] To prevent insufficiently settled oil from flowing directly into the suction chamber through the suction filter 220, the separating mechanism 400 includes a partition 410 fixedly connected to one side of the inner wall of the U-shaped plate 110. The partition 410 is located between the return oil filter 210 and the suction filter 220. The bottom of the partition 410 has a groove 420 adapted to the cylinder 300. The groove 420 has a U-shaped structure, and the width of the groove 420 is greater than the diameter of the cylinder 300. The separating mechanism 400 forms a physical barrier, allowing the oil to be settled and then filtered a second time by the suction filter 220, forming a complete processing chain of "filtration-blocking-sedimentation-re-filtration". This ensures that impurities and heat in the oil are fully removed to protect precision components (such as hydraulic valves) in the hydraulic system.

[0038] In order to form a fluid barrier, the height of the baffle 410 is not lower than the lowest working level of the hydraulic oil in the return oil chamber, so that the hydraulic oil is forced to flow into the suction oil chamber after cooling and settling through the return oil filter 210.

[0039] To ensure that the oil, water and impurities inside the oil suction chamber and the oil return chamber can be completely discharged, the cleaning and discharge mechanism includes a first discharge pipe 500 connected to the surface of the cylinder 300 and located at the lowest point of the bottom of the oil suction chamber, and a second discharge pipe 600 connected to the bottom of the L-shaped plate 120 and located at the lowest point of the bottom of the oil return chamber. Valves are installed on both the first discharge pipe 500 and the second discharge pipe 600.

[0040] To prevent impurities from remaining inside the oil suction chamber and oil return chamber, the cleaning and discharge mechanism also includes a first cleaning opening at the end of the cylinder 300 away from the oil suction filter 220, and a second cleaning opening on one side of the surface of the U-shaped plate 110. Both the second and first cleaning openings meet the requirements for manual operation or tool insertion. A first cover 700 that can seal the first cleaning opening is detachably installed on the cylinder 300 via a flange, and a second cover 800 that can seal the second cleaning opening is detachably installed on the U-shaped plate 110 via a flange. The combined use of the first cleaning opening, the second cleaning opening, the first cover 700, and the second cover 800 enables the internal cleaning and maintenance of the oil suction chamber and oil return chamber, ensuring that areas prone to dirt accumulation, such as the corners of the chamber and the area around the filter element, can be effectively cleaned.

[0041] Specifically, O-rings are provided at the connections between the cylinder 300 and the L-shaped plate 120, the first cleaning port and the first cover 700, and the second cleaning port and the second cover to ensure sealing performance.

[0042] When the above technical solution is used, the hydraulic oil returned by the equipment is initially filtered by the return oil filter 210 to remove larger particulate impurities before flowing into the return oil chamber. In the return oil chamber, the oil is cooled by heat exchange with the wall of the oil tank mechanism 100, and is forced to circulate under the obstruction of the baffle 410, which promotes the sedimentation of impurities in the oil.

[0043] After the oil flows into the return oil chamber after bypassing the baffle 410, it undergoes secondary precision filtration through the suction filter 220 before entering the suction chamber. The hydraulic oil in the suction chamber is drawn in by the equipment oil pump and re-delivered to the various actuators of the hydraulic system to complete the cycle.

[0044] Before and after cleaning, open the valves of the first discharge pipe 500 and the second discharge pipe 600 to drain the oil and water from the bottom of the cavity through the first discharge pipe 500 and the second discharge pipe 600, ensuring thorough maintenance. During cleaning, open the first cover 700 and the second cover 800 to clean the oil suction cavity and the oil return cavity manually or with tools, respectively.

[0045] In summary, this utility model embodiment of a hydraulic oil tank with a detachable oil suction chamber achieves this by detachably connecting the cylinder 300 to the oil tank mechanism 100, allowing the oil suction chamber to be disassembled and cleaned separately without disassembling the entire oil tank mechanism 100, significantly reducing maintenance workload and improving maintenance convenience. The combined use of the filter mechanism 200 and the separating mechanism 400 ensures that the hydraulic oil is fully cooled, settled, and filtered before entering the oil suction chamber, effectively protecting the hydraulic valve and improving oil cleanliness. The cleaning and discharge mechanism facilitates the thorough discharge of oil and water, ensuring thorough cleaning of the chamber, and allows for targeted cleaning of the two chambers separately, avoiding cleaning blind spots caused by the interconnected chambers in traditional structures, thus improving cleaning effectiveness. The oil suction chamber can be in various structural forms, and its connection with the oil tank mechanism 100 is flexible, adapting to different specifications of hydraulic systems and improving structural flexibility.

[0046] The foregoing has shown and described the basic principles of the present invention. The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. The above embodiments and descriptions in the specification are only illustrative of the principles of the present invention. Any modifications, equivalent substitutions, and improvements made within the scope of the present invention without departing from the scope of the present invention should be included within the protection scope of the present invention.

Claims

1. A hydraulic oil tank with a detachable oil suction chamber, characterized in that: The system includes an oil tank mechanism (100) for constructing an oil storage and circulation environment for a hydraulic system. It is equipped with a filter mechanism (200) for filtering hydraulic oil, a cylinder (300) for storing filtered hydraulic oil and supplying clean oil to the hydraulic system, and a separation mechanism (400) to prevent hydraulic oil after return from entering the cylinder (300) directly without being mixed, cooled and settled. The oil tank mechanism (100) and the cylinder (300) are jointly equipped with a cleaning and discharge mechanism for cleaning and oil discharge. The cylinder (300) is detachably connected to the oil tank mechanism (100) and used in conjunction with the filter mechanism (200). One end of the cylinder (300) is sealed and extends through to the outside of the oil tank mechanism (100). The cylinder (300) divides the inner cavity of the oil tank mechanism (100) into independent cavities. An oil suction cavity is formed inside the cylinder (300), and an oil return cavity is formed inside the oil tank mechanism (100).

2. The hydraulic oil tank with a detachable oil suction chamber according to claim 1, characterized in that: The oil tank mechanism (100) includes a U-shaped plate (110) and an L-shaped plate (120). The U-shaped plate (110) and the L-shaped plate (120) are welded and fixed to form a container with an open upper structure. A cover plate (130) that can seal the opening is fixedly connected to the top of the container. The cylinder (300) is connected to the L-shaped plate (120) through a detachable connection structure. The filter mechanism (200) is located on the cover plate (130).

3. A hydraulic oil tank with a detachable oil suction chamber according to claim 2, characterized in that: The L-shaped plate (120) has a through hole (121) for the cylinder (300) to pass through. The detachable connection structure between the cylinder (300) and the L-shaped plate (120) is any one of threaded connection, snap-fit ​​connection or flange connection.

4. A hydraulic oil tank with a detachable oil suction chamber according to claim 2, characterized in that: The filtration mechanism (200) includes a return oil filter (210) and a suction oil filter (220) that are installed through the cover plate (130). The return oil filter (210) is located directly above the cylinder (300), and the suction oil filter (220) is connected to one end of the cylinder (300).

5. A hydraulic oil tank with a detachable oil suction chamber according to claim 4, characterized in that: The separation mechanism (400) includes a partition (410) fixedly connected to one side of the inner wall of the U-shaped plate (110). The partition (410) is located between the return oil filter (210) and the suction oil filter (220). The bottom of the partition (410) is provided with a groove (420) that is adapted to the cylinder (300).

6. A hydraulic oil tank with a detachable oil suction chamber according to claim 5, characterized in that: The height of the baffle (410) is not lower than the lowest working level of the hydraulic oil in the return oil chamber, forming a fluid barrier.

7. A hydraulic oil tank with a detachable oil suction chamber according to claim 2, characterized in that: The cleaning and discharge mechanism includes a first discharge pipe (500) connected to the surface of the cylinder (300) and located at the lowest point of the bottom of the oil suction chamber, and a second discharge pipe (600) connected to the bottom of the L-shaped plate (120) and located at the lowest point of the bottom of the oil return chamber. Valves are installed on both the first discharge pipe (500) and the second discharge pipe (600).

8. A hydraulic oil tank with a detachable oil suction chamber according to claim 7, characterized in that: The cleaning and discharge mechanism also includes a first cleaning opening at the end of the cylinder (300) away from the oil suction filter (220), a second cleaning opening on one side of the surface of the U-shaped plate (110), a first cover (700) that can seal the first cleaning opening is detachably installed on the cylinder (300), and a second cover (800) that can seal the second cleaning opening is detachably installed on the U-shaped plate (110).

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