Hydraulic oil tank with high heat dissipation function

Abstract

The utility model discloses a hydraulic oil tank with high -efficient heat dissipation function, including the oil tank body, be equipped with cooling assembly in the oil tank body, the heat dissipation subassembly includes two sliding blocks of setting in the oil tank body, be equipped with the serpentine pipe between two the sliding block, the rear side of oil tank body is installed with cooling tank, be equipped with circulating pump in the cooling tank, the liquid outlet of circulating pump is connected with the liquid outlet pipe, the liquid outlet pipe with the liquid inlet of serpentine pipe intercommunication, the right side of cooling tank is connected with the liquid return pipe, the liquid inlet of serpentine pipe with the liquid return pipe intercommunication, the front side of cooling tank is equipped with heat dissipation subassembly. The utility model can realize efficient, even heat dissipation, and is not affected by environmental factor too much, prolongs the service life of hydraulic oil in hydraulic oil tank.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic oil tank technology, and in particular to a hydraulic oil tank with efficient heat dissipation function. Background Technology

[0002] In numerous fields such as industrial production, engineering machinery, and transportation, hydraulic systems have become one of the core technologies for power transmission and control due to their significant advantages, including high power density, smooth transmission, and rapid response. As a crucial component of the hydraulic system, the hydraulic tank not only performs the basic functions of storing hydraulic oil and providing sufficient fluid to the system, but also plays a vital role in heat dissipation, impurity sedimentation, and air separation from the oil. Its performance directly affects the stability, reliability, and service life of the entire hydraulic system.

[0003] During operation, hydraulic systems inevitably generate a large amount of heat due to mechanical friction from components such as hydraulic pumps, hydraulic motors, and hydraulic cylinders, as well as factors such as flow resistance and pressure loss of the oil in the pipelines. If this heat cannot be dissipated effectively and in a timely manner, the hydraulic oil temperature will continue to rise. When the hydraulic oil temperature exceeds its normal operating range (usually 30℃-55℃), a series of adverse consequences will occur: Firstly, the oil viscosity will decrease significantly, leading to increased leakage of hydraulic components, reduced system volumetric efficiency, and unstable working pressure, thereby affecting the operating accuracy and power output of the equipment; secondly, high temperatures will accelerate the oxidation and deterioration of the hydraulic oil, causing its performance to deteriorate and producing harmful substances such as sludge and gum, clogging the gaps in filters and hydraulic components, aggravating component wear and corrosion, shortening the service life of hydraulic oil and components, and may even cause system failure, resulting in downtime for maintenance and increased production costs.

[0004] Currently, traditional hydraulic oil tank cooling primarily relies on the natural heat dissipation of the tank itself, i.e., heat exchange between the tank walls and the surrounding environment. However, as hydraulic systems evolve towards higher power and miniaturization, the heat generation per unit volume increases significantly, making natural cooling insufficient for the system's cooling requirements. To improve cooling efficiency, some hydraulic oil tanks are fitted with external heat sinks or cooling fans to enhance cooling by increasing the heat dissipation area or forcing air convection. However, these external cooling structures are often limited by installation space, and their cooling efficiency is greatly affected by ambient temperature, significantly decreasing in high-temperature environments.

[0005] In addition, some hydraulic oil tanks use built-in cooling coils for heat dissipation, with the cooling medium flowing inside the coils to remove heat from the oil. However, most existing built-in cooling coils are fixed installations, and their heat exchange area is limited to the local oil around the coil. This makes it difficult to achieve sufficient and uniform heat exchange with the oil inside the tank, resulting in uneven oil temperature distribution within the tank, insufficient heat dissipation in some areas, and low overall heat dissipation efficiency.

[0006] Therefore, it is necessary to design a hydraulic oil tank with efficient heat dissipation function to solve the above problems. Utility Model Content

[0007] The purpose of this invention is to address the shortcomings of existing technologies by proposing a hydraulic oil tank with efficient heat dissipation. This invention can achieve efficient and uniform heat dissipation, and is not significantly affected by environmental factors, thus extending the service life of the hydraulic oil in the hydraulic oil tank.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A hydraulic oil tank with high-efficiency heat dissipation function includes an oil tank body, a heat dissipation assembly inside the oil tank body, two sliders disposed inside the oil tank body, a serpentine tube between the two sliders, a cooling box installed on the rear side of the oil tank body, a circulation pump inside the cooling box, an outlet pipe connected to the outlet end of the circulation pump, the outlet pipe connected to the inlet end of the serpentine tube, a return pipe connected to the right side of the cooling box, the return pipe connected to the outlet end of the serpentine tube, and a heat dissipation assembly on the front side of the cooling box.

[0010] Preferably, a guide rod is fixedly connected to the inner walls of the front and rear sides of the fuel tank body, and a threaded rod is rotatably connected to the inner walls of the front and rear sides of the fuel tank body. A slider is provided on both the guide rod and the threaded rod. The slider on the left side is threadedly connected to the threaded rod, and the slider on the right side is slidably connected to the guide rod. A strip plate is fixedly connected to the upper ends of the two sliders. A longitudinal reciprocating assembly is provided between the two sliders. A drive motor is installed on the front side of the fuel tank body, and the end of the output shaft of the drive motor is fixedly connected to the threaded rod.

[0011] Preferably, the longitudinal reciprocating assembly includes guide rails disposed on adjacent sides of two sliders, with movable blocks slidably connected to each of the two guide rails, the serpentine tube being fixedly connected to the two movable blocks, and support plates being fixedly connected to adjacent sides of the two sliders, with the two support plates being elastically connected to the adjacent sides of the corresponding movable blocks via two springs.

[0012] Preferably, a plurality of magnets are fixedly connected to the upper end of the fuel tank body, and the plurality of magnets are distributed in an array. The moving block is magnetic, and the adjacent sides of the moving block and the magnets are repelled by like charges.

[0013] Preferably, the heat dissipation assembly includes a heat-conducting plate embedded in the rear side of the cooling box, and a cooling fan is installed on the front side of the cooling box.

[0014] Preferably, both the return pipe and the outlet pipe are flexible tubes.

[0015] Compared with existing technologies, the advantages of this device are:

[0016] 1. Compared with the existing technology, this device drives the left slider to move laterally through the threaded rod, which drives the serpentine tube to shuttle laterally in the oil tank body. At the same time, the moving block in the longitudinal reciprocating component slides on the guide rail and cooperates with the spring and magnet to enable the serpentine tube to achieve longitudinal reciprocating motion. This allows the serpentine tube to fully contact the oil in different areas of the oil tank, effectively solving the problems of uneven heat dissipation and insufficient heat dissipation in local areas of traditional fixed coils.

[0017] 2. Compared with the existing technology, this device adopts a cooling tank and a serpentine tube to form a circulating heat dissipation system. The circulating pump drives the cooling medium to circulate efficiently between the serpentine tube and the cooling tank, quickly removing the heat of the oil. At the same time, the cooling fan on the front side of the cooling tank, together with the heat conduction plate on the rear side, enhances the heat dissipation of the cooling medium in the cooling tank, ensuring that the cooling medium always maintains a low temperature, ensuring the stability of heat dissipation efficiency, and reducing the interference of environmental factors on the heat dissipation effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a hydraulic oil tank with high-efficiency heat dissipation function proposed in this utility model;

[0019] Figure 2 for Figure 1 A structural diagram from another perspective;

[0020] Figure 3 for Figure 1 Top sectional view;

[0021] Figure 4 for Figure 1 A cross-sectional view taken from a low angle.

[0022] In the diagram: 1. Oil tank body, 2. Drive motor, 3. Cooling tank, 4. Cooling fan, 5. Return pipe, 6. Discharge pipe, 7. Threaded rod, 8. Guide rod, 9. Slider, 10. Guide rail, 11. Moving block, 12. Spring, 13. Serpentine tube, 14. Strip plate, 15. Magnet. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figures 1-4A hydraulic oil tank with high-efficiency heat dissipation function includes an oil tank body 1. A heat dissipation assembly is installed inside the oil tank body 1. The heat dissipation assembly includes two sliders 9 disposed inside the oil tank body 1, with a serpentine tube 13 between the two sliders 9. The serpentine tube 13 is made of bent copper with a purity of not less than 99.5%, an outer diameter of 10-15mm, a wall thickness of 1-1.5mm, and a bending radius of 3-5 times the tube diameter. It has a continuous S-shaped structure, and the effective heat exchange length is 70% of the internal length of the oil tank body 1, greatly increasing the contact area with the hydraulic oil. A cooling box 3 is installed at the rear of the oil tank body 1. The cooling box 3 is a closed box made of welded stainless steel, and its internal volume is 1 / 5 of the volume of the oil tank body 1. -1 / 4, the inner wall of the cooling box is treated with anti-corrosion to prevent corrosion by the cooling medium. The cooling box 3 is equipped with a circulation pump, which is a micro gear pump with a rated flow of 2-5L / min and a working pressure of 0.3-0.5MPa. Its power input end is connected to an external motor through a coupling. The motor adopts frequency conversion control and can automatically adjust the speed according to the oil temperature in the oil tank. The outlet end of the circulation pump is connected to the outlet pipe 6, which is connected to the inlet end of the serpentine tube 13. The right side of the cooling box 3 is connected to the return pipe 5, which is connected to the outlet end of the serpentine tube 13. The front side of the cooling box 3 is equipped with a heat dissipation component. Both the return pipe 5 and the outlet pipe 6 are flexible hoses made of oil-resistant nitrile rubber, and the inner diameter matches the diameter of the serpentine tube 13.

[0025] The inner walls of the front and rear sides of the fuel tank body 1 are fixedly connected to guide rods 8, and the inner walls of the front and rear sides of the fuel tank body 1 are rotatably connected to threaded rods 7. Both guide rods 8 and threaded rods 7 are equipped with sliders 9. The slider 9 on the left side is threadedly connected to the threaded rod 7, and the slider 9 on the right side is slidably connected to the guide rod 8. The upper ends of the two sliders 9 are fixedly connected to strip plates 14. Strip plates 14 are steel plate bending parts and are fixed to the two sliders 9 by countersunk screws to play a synchronous guiding role and prevent the sliders 9 from tilting during movement. A longitudinal reciprocating assembly is provided between the two sliders 9. A drive motor 2 is installed on the front side of the fuel tank body 1, and the end of the output shaft of the drive motor 2 is fixedly connected to the threaded rod 7.

[0026] The longitudinal reciprocating assembly includes guide rails 10 arranged on adjacent sides of two sliders 9, with movable blocks 11 slidably connected to each of the two guide rails 10. A serpentine tube 13 is fixedly connected to the two movable blocks 11. Support plates are fixedly connected to adjacent sides of the two sliders 9. The two support plates are elastically connected to the adjacent sides of the corresponding movable blocks 11 through two springs 12. Multiple magnets 15 are fixedly connected to the upper end of the oil tank body 1. The multiple magnets 15 are arranged in an array. The movable blocks 11 are magnetic. The adjacent sides of the movable blocks 11 and the magnets 15 are like poles and repel each other. When the movable blocks 11 approach the magnets 15, the repulsive force of the magnets 15 causes the movable blocks 11 to move down and compress the springs 12. When the movable blocks 11 move away from the magnets 15, the elastic force of the springs 12 causes the movable blocks 11 to move up and reset.

[0027] The heat dissipation component includes a heat-conducting plate embedded in the rear side of the cooling box 3, and a cooling fan 4 is installed in the front side of the cooling box 3.

[0028] The functional principle of this invention can be explained through the following operation: When the hydraulic system starts running, the hydraulic oil in the hydraulic tank generates heat due to the system's operation, and its temperature gradually rises. At this time, the circulation pump in the cooling tank 3 starts working, pumping the cooling medium in the cooling tank 3 into the serpentine tube 13 through the outlet pipe 6. When the cooling medium flows in the serpentine tube 13, it exchanges heat with the high-temperature hydraulic oil in the tank body 1, absorbing heat from the oil and lowering the hydraulic oil temperature. After heat exchange, the cooling medium flows back to the cooling tank 3 through the return pipe 5, realizing the recycling of the cooling medium.

[0029] While the cooling medium circulates and exchanges heat, the drive motor 2 drives the threaded rod 7 to rotate. Since the left slider 9 is threadedly connected to the threaded rod 7 and the right slider 9 is slidably connected to the guide rod 8, the rotation of the threaded rod 7 causes the left slider 9 to move laterally along the threaded rod 7, thereby driving the strip plate 14 and the serpentine tube 13 between the two sliders 9 to move laterally synchronously. During this process, the longitudinal reciprocating component begins to function: the moving block 11 slides on the guide rail 10. Due to the intermittent array distribution of multiple magnets 15, and under the combined action of the elastic tension of the spring 12 and the intermittent like-pole repulsive force of the magnets 15 on the moving block 11, the moving block 11 drives the serpentine tube 13 to perform longitudinal reciprocating motion. The combination of lateral movement and longitudinal reciprocating motion allows the serpentine tube 13 to shuttle in all directions within the oil tank body 1, making full contact with the hydraulic oil in different areas, greatly improving the heat exchange efficiency and uniformity.

[0030] At the same time, the cooling fan 4 on the front side of the cooling tank 3 starts, working in conjunction with the heat conduction plate on the rear side to accelerate the heat exchange between the cooling tank 3 and the external environment. The high-temperature cooling medium flowing back to the cooling tank 3 transfers heat to the surrounding air through the heat conduction plate, while the cooling fan 4 forces airflow to quickly remove heat, thus lowering the temperature of the cooling medium inside the cooling tank 3. This ensures that the medium can efficiently absorb the heat of the hydraulic oil when it re-enters the serpentine tube 13, thereby achieving continuous and efficient heat dissipation of the hydraulic oil tank.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hydraulic oil tank with high-efficiency heat dissipation function, comprising an oil tank body (1), characterized in that: The oil tank body (1) is equipped with a heat dissipation assembly, which includes two sliders (9) disposed inside the oil tank body (1) and a serpentine tube (13) between the two sliders (9). A cooling box (3) is installed on the rear side of the oil tank body (1). A circulation pump is provided inside the cooling box (3). The outlet end of the circulation pump is connected to an outlet pipe (6). The outlet pipe (6) is connected to the inlet end of the serpentine tube (13). A return pipe (5) is connected to the right side of the cooling box (3). The return pipe (5) is connected to the outlet end of the serpentine tube (13). A heat dissipation assembly is provided on the front side of the cooling box (3).

2. A hydraulic oil tank with high-efficiency heat dissipation function according to claim 1, characterized in that: The front and rear inner walls of the oil tank body (1) are fixedly connected to guide rods (8), and the front and rear inner walls of the oil tank body (1) are rotatably connected to threaded rods (7). Both the guide rods (8) and the threaded rods (7) are provided with sliders (9). The slider (9) on the left side is threadedly connected to the threaded rods (7), and the slider (9) on the right side is slidably connected to the guide rods (8). The upper ends of the two sliders (9) are fixedly connected to strip plates (14). A longitudinal reciprocating assembly is provided between the two sliders (9). A drive motor (2) is installed on the front side of the oil tank body (1), and the end of the output shaft of the drive motor (2) is fixedly connected to the threaded rods (7).

3. A hydraulic oil tank with high-efficiency heat dissipation function according to claim 2, characterized in that: The longitudinal reciprocating assembly includes guide rails (10) arranged on adjacent sides of two sliders (9), and moving blocks (11) are slidably connected on both guide rails (10). The serpentine tube (13) is fixedly connected to the two moving blocks (11). Support plates are fixedly connected to adjacent sides of the two sliders (9), and the two support plates are elastically connected to adjacent sides of the corresponding moving blocks (11) through two springs (12).

4. A hydraulic oil tank with high-efficiency heat dissipation function according to claim 3, characterized in that: The upper end of the fuel tank body (1) is fixedly connected to a plurality of magnets (15), the plurality of magnets (15) are arranged in an array, the movable block (11) is magnetic, and the adjacent sides of the movable block (11) and the magnets (15) are repulsive to each other.

5. A hydraulic oil tank with high-efficiency heat dissipation function according to claim 1, characterized in that: The heat dissipation assembly includes a heat-conducting plate embedded in the rear side of the cooling box (3), and a cooling fan (4) is installed on the front side of the cooling box (3).

6. A hydraulic oil tank with high-efficiency heat dissipation function according to claim 1, characterized in that: Both the return pipe (5) and the outlet pipe (6) are flexible tubes.

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