Novel hydraulic oil tank circulating pipeline cooling device

Abstract

The utility model discloses a novel hydraulic oil tank circulating pipeline cooling device which comprises an oil tank, an oil outlet pipe at the lower end of one side of the oil tank is connected with a gear pump, an oil outlet of the gear pump is connected with a heat exchanger through a pipeline, a liquid outlet of the heat exchanger is connected with a filter through a pipeline, and a liquid outlet of the filter is provided with a backflow pipe. An extension pipe extending to the upper end of the inner cavity of the oil tank is arranged at a liquid outlet of the backflow pipe and located on the side, away from the oil outlet pipe, of the oil tank. According to the utility model, a low-pumping and high-emission hydraulic oil internal circulation mode is adopted, so that oil in the whole oil tank is circulated; and the backflow hydraulic oil forms a diffusion effect when being discharged and is mixed with the upper-layer oil, so that the upper-side hot hydraulic oil and the lower-layer cold hydraulic oil are mixed, the problem that the temperature difference of the upper oil and the lower oil in the oil tank is large is effectively solved, uniform heat dissipation of the hydraulic oil in the oil tank is facilitated, the heat dissipation efficiency is improved, and the use effect is good.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic oil tank technology for rolling mills, specifically a novel cooling device for the circulating pipeline of a hydraulic oil tank. Background Technology

[0002] Aluminum foil rolling is a high-precision metal processing technology, and its rolling mill hydraulic system operates continuously under high frequency and high load for extended periods. The circulating filtration and cooling pipes in the hydraulic system are devices that filter and cool the oil in the tank. Originally, the end of the pipe was installed on one side of the tank in a straight-through design. Because the pipe outlet was directly inserted into the oil, it did not allow for sufficient oil flow within the tank; only the lower portion of the oil flowed towards the suction port. This resulted in a high oil flow rate in localized areas within the tank, leading to uneven heat dissipation and reduced cooling efficiency, resulting in poor performance. Utility Model Content

[0003] The technical problem this invention aims to solve is to overcome existing defects and provide a novel hydraulic oil tank circulation pipeline cooling device. This device employs a low-pump, high-discharge hydraulic oil internal circulation method, allowing the oil throughout the tank to circulate. Furthermore, the returning hydraulic oil creates a diffusion effect when discharged, mixing with the upper layer of oil. This mixing of the upper hot hydraulic oil and the lower cold hydraulic oil effectively improves the problem of large temperature differences between the upper and lower layers of oil inside the tank, contributing to uniform heat dissipation of the hydraulic oil inside the tank, improving heat dissipation efficiency, and providing good performance. This invention effectively solves the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a novel hydraulic oil tank circulating pipeline cooling device, comprising an oil tank, an oil outlet pipe at the lower end of one side of the oil tank connected to a gear pump, an oil outlet of the gear pump connected to a heat exchanger via a pipe, an outlet of the heat exchanger connected to a filter via a pipe, an outlet of the filter provided with a return pipe, an outlet of the return pipe provided with an extension pipe extending to the upper end of the inner cavity of the oil tank, the extension pipe being located on the side of the oil tank away from the oil outlet pipe, and the side of the extension pipe having evenly distributed outlet holes.

[0005] As a preferred embodiment of this invention, the angle between the liquid outlet and the axis of the extension tube is 30-60°.

[0006] As a preferred embodiment of this utility model, a sleeve is provided on the side wall corresponding to the oil tank and the extension pipe, and the extension pipe is sealed and rotatably disposed inside the sleeve.

[0007] As a preferred embodiment of this utility model, the end of the extension tube near the return tube is provided with an annular cover, and the liquid outlet end of the return tube is rotatably and sealingly connected to the annular cover.

[0008] As a preferred embodiment of this utility model, a motor is provided on the top of the oil tank, a pulley is provided on the output shaft of the motor, a belt groove is provided on the outer peripheral side of the annular cover corresponding to the pulley, and a belt that is connected to the pulley for transmission is sleeved on the belt groove.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] This utility model presents a novel hydraulic oil tank circulation pipeline cooling device that employs a low-pump, high-discharge hydraulic oil internal circulation method to circulate the oil throughout the entire tank. Furthermore, the returning hydraulic oil creates a diffusion effect when discharged, mixing with the upper layer of oil. This mixing of the upper hot hydraulic oil and the lower cold hydraulic oil effectively improves the problem of large temperature differences between the upper and lower layers of oil inside the tank, contributing to uniform heat dissipation of the hydraulic oil within the tank, improving heat dissipation efficiency, and resulting in good performance. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a cross-sectional view of the oil tank in this utility model;

[0013] Figure 3 This is a schematic diagram of the oil tank cooling structure in the prior art.

[0014] In the diagram: 1. Oil tank, 2. Gear pump, 3. Heat exchanger, 4. Filter, 5. Return pipe, 6. Extension pipe, 61. Liquid outlet, 7. Annular cover, 8. Motor, 81. Pulley, 82. Belt. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-3This utility model provides a technical solution: a novel hydraulic oil tank circulation pipeline cooling device, including an oil tank 1, an oil outlet pipe at the lower end of one side of the oil tank 1 connected to a gear pump 2, an oil outlet of the gear pump 2 connected to a heat exchanger 3 via a pipe, an outlet of the heat exchanger 3 connected to a filter 4 via a pipe, an outlet of the filter 4 provided with a return pipe 5, an outlet of the return pipe 5 provided with an extension pipe 6 extending to the upper end of the inner cavity of the oil tank 1, the extension pipe 6 being located on the side of the oil tank 1 away from the oil outlet pipe, and the side of the extension pipe 6 having evenly distributed outlet holes 61, the gear pump 2 draws oil from the lower layer of the oil tank 1, which, after being cooled by the heat exchanger 3 and filtered by the filter 4, flows into the top layer of the inner cavity of the oil tank 1 through the return pipe 5 and the extension pipe 6, thereby causing the upper layer of oil in the oil tank 1 to move downwards, while the lower layer of oil, after being cooled and filtered, returns to the upper layer of the oil tank, which is beneficial to the uniform heat dissipation of the oil temperature inside the entire oil tank.

[0017] The diagram in the instruction manual shows that the return pipe 5 is mainly used to connect the extension pipe 6 and the filter 4. In the actual layout, it is necessary to ensure that the return pipe 5 passes over the oil tank 1 and that the part of the extension pipe 6 inside the oil tank 1 is completely submerged in the hydraulic oil.

[0018] Furthermore, the angle between the outlet hole 61 and the axis of the extension pipe 6 is 30-60°. When the cooled and filtered oil is discharged to the upper side of the oil tank 1 through the outlet hole 61 on the extension pipe 6, the oil discharged from the outlet hole 61 forms a certain diffusion effect and mixes with the oil in the upper part of the oil tank 1, promoting the mixing of cold oil and hot oil in the upper part of the oil tank 1, thereby helping to improve the heat dissipation effect.

[0019] Furthermore, a sleeve is provided on the side wall corresponding to the oil tank 1 and the extension pipe 6, and the extension pipe 6 is sealed and rotated inside the sleeve to improve the sealing effect between the extension pipe 6 and the side wall of the oil tank 1.

[0020] Furthermore, an annular cover 7 is provided at one end of the extension tube 6 near the return tube 5, and the liquid outlet end of the return tube 5 is rotatably connected to the annular cover 7 to improve the sealing effect between the return tube 5 and the extension tube 6.

[0021] Furthermore, a motor 8 is provided on the top of the oil tank 1, and a pulley 81 is provided on the output shaft of the motor 8. A belt groove is provided on the outer peripheral side of the annular cover 7 corresponding to the pulley 81. A belt 82 connected to the pulley 81 is fitted on the belt groove. The motor 8 drives the annular cover 7 to rotate through the pulley 81 and the belt 82. The annular cover 7 drives the extension tube 6 to rotate, thereby improving the diffusion effect of the oil discharged from the outlet 61 in the upper part of the oil tank 1, which helps to mix the hot oil in the upper part and the cold oil in the lower part, thereby improving the heat dissipation effect.

[0022] The gear pump 2 and motor 8 used in this utility model are common electrical devices in the prior art, and their working methods and circuit structures are known technologies, so they will not be described in detail here.

[0023] When using:

[0024] Gear pump 2 draws oil from the lower layer of oil tank 1. After being cooled by heat exchanger 3 and filtered by filter 4, the oil flows into the top layer of the inner cavity of oil tank 1 through return pipe 5 and extension pipe 6. This causes the upper layer of oil in oil tank 1 to move downward, while the lower layer of oil returns to the upper layer of oil tank after being cooled and filtered, which is beneficial to the uniform heat dissipation of oil temperature inside the entire oil tank.

[0025] In addition, when the cooled and filtered oil is discharged into the upper part of the oil tank 1 through the outlet hole 61 on the extension pipe 6, the oil discharged from the outlet hole 61 forms a certain diffusion effect and mixes with the oil in the upper part of the oil tank 1, promoting the mixing of cold oil and hot oil in the upper part of the oil tank 1, thereby helping to improve the heat dissipation effect.

[0026] This invention employs a low-pump, high-discharge hydraulic oil internal circulation method, which circulates the oil throughout the entire tank. Furthermore, when the returning hydraulic oil is discharged, it creates a diffusion effect and mixes with the upper layer of oil, thereby mixing the hot hydraulic oil on the upper side and the cold hydraulic oil on the lower side. This effectively improves the problem of large temperature differences between the upper and lower layers of oil inside the tank, helps to evenly dissipate heat from the hydraulic oil inside the tank, improves heat dissipation efficiency, and results in good performance.

[0027] The parts not disclosed in this utility model are all prior art, and their specific structures, materials, and working principles will not be described in detail. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel hydraulic oil tank circulating pipeline cooling device, comprising an oil tank (1), characterized in that: The oil outlet pipe connected with the gear pump (2) is arranged at the lower end of one side of the oil tank (1), the oil outlet of the gear pump (2) is connected with the heat exchanger (3) through a pipeline, the liquid outlet of the heat exchanger (3) is connected with the filter (4) through a pipeline, the liquid outlet of the filter (4) is provided with the backflow pipe (5), the liquid outlet of the backflow pipe (5) is provided with the extension pipe (6) extending to the upper end of the inner cavity of the oil tank (1), the extension pipe (6) is located at the side of the oil tank (1) away from the oil outlet pipe, and the side surface of the extension pipe (6) is provided with the uniformly distributed liquid outlet holes (61).

2. The novel hydraulic oil tank circulation pipeline cooling device according to claim 1, characterized in that: The liquid outlet holes (61) and the axis of the extension pipe (6) form an angle of 30-60°.

3. The novel hydraulic oil tank circulation pipeline cooling device according to claim 1, characterized in that: The side wall of the oil tank (1) corresponding to the extension pipe (6) is provided with a pipe sleeve, and the extension pipe (6) is sealingly and rotatably arranged in the pipe sleeve.

4. The novel hydraulic oil tank circulation pipeline cooling device according to claim 1, characterized in that: The end of the extension pipe (6) close to the backflow pipe (5) is provided with the annular cover (7), and the liquid outlet end of the backflow pipe (5) is sealingly and rotatably connected with the annular cover (7).

5. The novel hydraulic oil tank circulation pipe cooling device according to claim 4, characterized in that: The top of the oil tank (1) is provided with the motor (8), the output shaft of the motor (8) is provided with the belt pulley (81), the outer circumferential side surface of the annular cover (7) corresponding to the belt pulley (81) is provided with the belt groove, and the belt groove is provided with the belt (82) in transmission connection with the belt pulley (81).

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