A device for testing the antioxidation of lubricating oil

Abstract

The utility model discloses a lubricating oil antioxidant experimental device, including experiment box, the inside installation of experiment box has the heat -proof seat, and the one side rotatory mounting of heat -proof seat has the transmission shaft, and one end of transmission shaft is connected with the limit position seat, and the inside installation of limit position seat has the oxygen bomb, and the one side of sealing cap is connected with the oxygen injection pipe, and the one side mounting of oxygen injection pipe has the stop valve, and the one side mounting of stop valve has the pressure sensor, and the transmission heating mechanism that is equipped with between heat -proof seat and transmission shaft, and the driven discharge mechanism that is equipped with between experiment box and transmission shaft. The utility model has the following effect: through transmission heating mechanism, can drive oxygen bomb to rotate unceasingly when oil bath heating, and can unceasingly tumble and stir the heat -conducting oil in heat -proof seat while rotating, realize the even heating of heat -conducting oil, through driven discharge mechanism, can when oxygen bomb carries out oil bath heating, the steam of heat -conducting oil heating produces and carries out the active discharge, effectively prevent harmful steam to drift to the laboratory environment at will.

Description

Technical Field

[0001] This utility model relates to the field of experimental device technology, and more specifically, to an experimental device for anti-oxidation of lubricating oil. Background Technology

[0002] As a critical medium in the operation of mechanical equipment, the antioxidant performance of lubricating oil is one of the most important performance indicators for evaluating oil quality. Good antioxidant capacity can effectively slow down the oxidation process of lubricating oil under high temperature, high pressure, and oxygen conditions, preventing problems such as changes in oil viscosity, increased acid value, and precipitation formation. This directly affects the service life of the lubricating oil and the safe and stable operation of the mechanical equipment. Therefore, accurately assessing the antioxidant performance of lubricating oil is crucial in its research, development, production, and application.

[0003] Currently, the rotating oxygen bomb method is widely used in the industry to determine the oxidation resistance of lubricating oils. This method simulates the oxidation process of oil under high temperature, high pressure, and oxygen-rich conditions by rotating an oxygen bomb containing lubricating oil and oxygen in a high-temperature heat-conducting oil bath. The oxidation resistance of the lubricating oil is evaluated by measuring the rate of oxygen pressure drop or the time required to reach a specified pressure drop. However, existing rotating oxygen bomb experimental devices still have many shortcomings in practical use. First, the experiment requires prolonged constant-temperature oil bath heating of the oxygen bomb, typically reaching temperatures above 150°C. To maintain a stable oil bath temperature, the heating system needs to operate continuously. During this process, the heat-conducting oil is prone to localized overheating, resulting in uneven temperature distribution within the oil bath, affecting the temperature control accuracy and repeatability of the results. In addition, at high temperatures, the heat-conducting oil gradually decomposes and produces harmful vapors, such as aldehydes, ketones, and low-molecular-weight hydrocarbons, which, if directly emitted, not only pollute the air but also pose a potential threat to the respiratory system and health of the experimental personnel. Utility Model Content

[0004] In view of the problems in the related technologies, this utility model proposes a lubricating oil anti-oxidation experimental device to overcome the above-mentioned technical problems existing in the existing related technologies.

[0005] Therefore, the specific technical solution adopted by this utility model is as follows:

[0006] An experimental apparatus for anti-oxidation of lubricating oil includes an experimental chamber. An insulating base is installed inside the experimental chamber. A drive shaft is rotatably mounted on one side of the insulating base. One end of the drive shaft is connected to a limiting seat. An oxygen bomb is installed inside the limiting seat. A sealing cap is installed on one end of the oxygen bomb. An oxygen injection pipe is rotatably connected to one side of the sealing cap. A shut-off valve is installed on one side of the oxygen injection pipe. A pressure sensor is installed on one side of the shut-off valve. A transmission heating mechanism is provided between the insulating base and the drive shaft. A driven discharge mechanism is provided between the experimental chamber and the drive shaft.

[0007] Furthermore, in order to achieve uniform heating of the heat transfer oil inside the heat insulation seat, the transmission heating mechanism includes heating resistors installed on both sides of the bottom of the heat insulation seat, a drive gear connected to one side of the surface of the transmission shaft, a driven shaft rotatably installed on one side of the surface of the heat insulation seat, a driven gear connected to one side of the surface of the driven shaft, the driven gear meshing with the drive gear, and a spiral stirring blade installed on one side of the surface of the driven shaft.

[0008] Furthermore, in order to provide power for the rotation of the drive shaft, a drive motor is installed on one side of the experimental box. The output end of the drive motor is connected to a drive roller, one end of the drive shaft is connected to a driven roller, and a drive belt connects the drive roller and the driven roller.

[0009] Furthermore, in order to actively discharge the steam generated during the heating of the heat transfer oil, the driven discharge mechanism includes a discharge pipe connecting the experimental chamber and the heat insulation seat, a driven ring rotatably connected to one side of the discharge pipe, an exhaust fan installed inside the driven ring, and a transmission belt connecting the driven ring and the driven roller.

[0010] Furthermore, in order to achieve a sealing effect on the top of the test chamber during the lubricating oil anti-oxidation experiment, a protective cover is installed on the top of the test chamber.

[0011] Furthermore, in order to clamp and fix the oxygen bomb installed in the limiting groove, clamping bolts are threaded on both sides of the limiting seat.

[0012] Furthermore, in order to achieve air circulation within the heat insulation seat during the emission of harmful vapors, an air inlet is provided on one side of the surface of the sealing cover.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The transmission heating mechanism can drive the oxygen bomb to rotate continuously during oil bath heating, improving the contact effect between the lubricating oil inside the oxygen bomb and oxygen and catalyst. At the same time, the transmission shaft can drive the spiral stirring blades to rotate continuously, thereby continuously tumbling and stirring the heat transfer oil in the heat insulation seat, realizing uniform heating of the heat transfer oil, effectively improving the problem of uneven temperature distribution of heat transfer oil during long-term heating, avoiding local overheating or temperature lag, and ensuring a highly uniform oil bath temperature around the oxygen bomb.

[0015] 2. Through the driven emission mechanism, when the oxygen bomb is rotated by the drive shaft, the driven ring and exhaust fan on one side of the emission pipe are rotated simultaneously. This allows the exhaust fan to actively discharge the harmful vapors generated by the heat transfer oil in the heat insulation seat through the emission pipe. This facilitates the subsequent collection or filtration and purification of harmful vapors, preventing them from drifting into the laboratory environment. This significantly improves the safety and environmental friendliness of experimental operations and protects the health of laboratory personnel. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the surface structure of a lubricating oil anti-oxidation experimental device according to an embodiment of the present utility model;

[0018] Figure 2 This is an internal cross-sectional view of the test chamber in a lubricating oil anti-oxidation test apparatus according to an embodiment of the present utility model;

[0019] Figure 3 This is an internal cross-sectional view of the test chamber and heat insulation seat in a lubricating oil anti-oxidation test device according to an embodiment of the present utility model;

[0020] Figure 4 This is an internal cross-sectional side view of the test chamber and heat insulation seat in a lubricating oil anti-oxidation test device according to an embodiment of the present utility model;

[0021] Figure 5 This is a schematic diagram of the internal structure of the discharge pipe in a lubricating oil anti-oxidation experimental device according to an embodiment of the present utility model.

[0022] In the picture:

[0023] 1. Experimental chamber; 2. Insulation seat; 3. Drive shaft; 4. Limit seat; 5. Oxygen bomb; 6. Sealing cover; 7. Oxygen injection pipe; 8. Shut-off valve; 9. Pressure sensor; 10. Transmission heating mechanism; 1001. Heating resistor; 1002. Drive gear; 1003. Driven shaft; 1004. Driven gear; 1005. Spiral stirring blade; 1006. Drive motor; 1007. Drive roller; 1008. Driven roller; 1009. Drive belt one; 11. Driven discharge mechanism; 1101. Discharge pipe; 1102. Driven ring; 1103. Exhaust fan; 1104. Drive belt two; 12. Protective cover; 13. Clamping bolt; 14. Air inlet. Detailed Implementation

[0024] 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.

[0025] According to an embodiment of the present invention, a testing device for anti-oxidation of lubricating oil is provided.

[0026] like Figures 1-5 As shown, a lubricating oil anti-oxidation experimental device according to an embodiment of the present invention includes a rectangular experimental box 1 with an open top. A heat insulation seat 2 is installed inside the experimental box 1 for holding heat-conducting oil for anti-oxidation experiments. A drive shaft 3 is rotatably mounted on one side of the heat insulation seat 2. One end of the drive shaft 3 inside the heat insulation seat 2 is connected to a limiting seat 4. An oxygen bomb 5 is installed inside the limiting seat 4 for placing lubricating oil, oxygen, and a catalyst for anti-oxidation experiments inside. A sealing cap 6 is installed at one end of the oxygen bomb 5. An oxygen injection pipe 7 is rotatably connected to one side of the sealing cap 6. A shut-off valve 8 is installed to inject oxygen at a certain pressure into the oxygen bomb 5; a pressure sensor 9 is installed on one side of the shut-off valve 8 to detect the pressure of the oxygen reacting with the lubricating oil inside the oxygen bomb 5 in real time; a transmission heating mechanism 10 is provided between the heat insulation seat 2 and the transmission shaft 3 to drive the transmission shaft 3 to rotate and tumble and stir the heat transfer oil in the heat insulation seat 2 to achieve uniform heating of the heat transfer oil; a driven discharge mechanism 11 is provided between the experimental chamber 1 and the transmission shaft 3 to actively discharge the harmful gases generated when heating the heat transfer oil, so as to facilitate subsequent collection and purification.

[0027] like Figures 1-5As shown, the transmission heating mechanism 10 includes heating resistors 1001 mounted on both sides of the bottom of the heat insulation seat 2, and a temperature sensor (not shown) mounted on one side of the top of the heat insulation seat 2. The heating resistors 1001 continuously heat the heat-conducting oil inside the heat insulation seat 2, maintaining a suitable reaction temperature for the antioxidant experiment inside the oxygen bomb 5. A drive gear 1002 is connected to one side of the surface of the transmission shaft 3, and a driven shaft 1003 is rotatably mounted on one side of the surface of the heat insulation seat 2. A driven gear 1004 is connected to one side of the surface of the driven shaft 1003, and the driven gear 1004 meshes with the drive gear 1002. A spiral stirring blade 1005 is mounted on one side of the surface of the driven shaft 1003. The inner surface of the experimental chamber 1... A drive motor 1006 is installed on one side of the unit. The output end of the drive motor 1006 is connected to a drive roller 1007. One end of the drive shaft 3 is connected to a driven roller 1008. A drive belt 1009 connects the drive roller 1007 and the driven roller 1008. The drive motor 1006 can drive the drive roller 1007 to rotate, which in turn drives the driven roller 1008 and the drive shaft 3 to rotate via the drive belt 1009. This enables the oxygen bomb 5 to rotate continuously in the heat transfer oil. At the same time as the drive shaft 3 rotates, the meshing connection between the drive gear 1002 and the driven gear 1004 causes the spiral stirring blades 1005 on one side of the driven shaft 1003 to rotate continuously within the heat insulation seat 2. The system can tumble and stir the heat transfer oil in the heat insulation seat 2 to achieve uniform heating of the heat transfer oil. The driven discharge mechanism 11 includes a discharge pipe 1101 connecting the experimental chamber 1 and the heat insulation seat 2. A driven ring 1102 is rotatably connected to one side of the discharge pipe 1101. An exhaust fan 1103 is installed inside the driven ring 1102. A transmission belt 1104 connects the driven ring 1102 and the driven roller 1008. While the drive motor 1006 drives the drive shaft 3 to rotate, the driven roller 1008 can drive the driven ring 1102 on one side of the discharge pipe 1101 to rotate synchronously through the transmission belt 1104, so that the exhaust fan 1103 inside the driven ring 1102 continuously discharges the heat generated in the heat insulation seat 2. The harmful vapors are actively discharged, facilitating subsequent collection and purification. A protective cover 12 is installed on the top of the experimental chamber 1 to seal the opening at the top of the experimental chamber 1 during the anti-oxidation experiment, preventing the vapors generated by the heating of the heat transfer oil from drifting away. The limiting seat 4 has clamping bolts 13 threaded on both sides. When one end of the oxygen bomb 5 is placed in the limiting seat 4, the clamping bolts 13 are tightened to squeeze and clamp the surface of the oxygen bomb 5, thus fixing the oxygen bomb 5 to the limiting seat 4. An air inlet 14 is opened on one side of the surface of the sealing cover 6 to allow air to circulate inside the heat insulation seat 2 when the exhaust fan 1103 rotates, facilitating the discharge of harmful vapors through airflow.

[0028] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0029] In practical use, the lubricating oil to be tested, catalyst, and other necessary components for the oxygen bomb 5 are first loaded into the oxygen bomb 5. The oxygen bomb 5 is then sealed with the sealing cap 6. One end of the oxygen bomb 5 is placed in the limiting seat 4 and tightened with the clamping bolts 13 on both sides to secure the oxygen bomb 5 within the limiting seat 4, preventing it from loosening or shifting during rotation. Next, the shut-off valve 8 is opened, and oxygen at the specified pressure is injected into the oxygen bomb 5 through the oxygen injection pipe 7. The shut-off valve 8 is then closed to ensure that the oxygen bomb 5 is in a sealed and pressurized state. Simultaneously, heat-conducting oil is injected into the heat insulation seat 2, covering the area of ​​the oxygen bomb 5 to be heated, and the protective cap 12 on top of the experimental chamber 1 is placed on top to create a relatively closed experimental environment, preventing heat loss and steam escape during heating. After the experiment begins, the drive motor 1006 is started. The motor output drives the drive roller 1007 to rotate, which in turn drives the driven roller 1008 connected to it to rotate via the drive belt 1009. This causes the drive shaft 3 and the oxygen bomb 5 fixed at one end to rotate continuously in the heat transfer oil. At the same time, the rotation of the drive shaft 3 drives the driven gear 1004 to mesh through the driving gear 1002 on its surface. This causes the spiral stirring blades 1005 mounted on the driven shaft 1003 to rotate synchronously inside the heat insulation seat 2, continuously tumbling and stirring the heat transfer oil. This breaks up the temperature stratification inside the oil bath, promotes uniform heat transfer, effectively improves the temperature uniformity of the oil bath, and ensures that the oxygen bomb 5 is heated evenly. During the experiment, the drive... While the motor 1006 drives the transmission shaft 3 to rotate, the driven roller 1008 drives the driven ring 1102 to rotate through the transmission belt 1104, causing the exhaust fan 1103 installed in the discharge pipe 1101 to operate synchronously. This forces the harmful vapors accumulated inside the heat insulation seat 2 to be extracted through the discharge pipe 1101, facilitating subsequent collection or filtration and purification of the harmful vapors and preventing them from drifting into the laboratory environment. This device does not require an additional independent exhaust fan or electric exhaust device. While completing the rotation of the oxygen bomb 5 and the stirring of the heat transfer oil, it simultaneously achieves the active discharge of steam inside the heat insulation seat 2, ensuring discharge efficiency and achieving the goal of energy-saving operation, thus improving the overall energy efficiency and economy of the device.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A testing apparatus for the anti-oxidation of lubricating oil, characterized in that, The experimental chamber (1) includes an insulation seat (2) installed inside the experimental chamber (1). A drive shaft (3) is rotatably installed on one side of the insulation seat (2). One end of the drive shaft (3) is connected to a limit seat (4). An oxygen bomb (5) is installed inside the limit seat (4). A sealing cover (6) is installed on one end of the oxygen bomb (5). An oxygen injection pipe (7) is rotatably connected to one side of the sealing cover (6). A shut-off valve (8) is installed on one side of the oxygen injection pipe (7). A pressure sensor (9) is installed on one side of the shut-off valve (8). A transmission heating mechanism (10) is provided between the insulation seat (2) and the drive shaft (3). A driven discharge mechanism (11) is provided between the experimental chamber (1) and the drive shaft (3).

2. The experimental apparatus for anti-oxidation of lubricating oil according to claim 1, characterized in that, The transmission heating mechanism (10) includes heating resistors (1001) installed on both sides of the bottom of the heat insulation seat (2), a drive gear (1002) connected to one side of the surface of the transmission shaft (3), a driven shaft (1003) rotatably installed on one side of the surface of the heat insulation seat (2), a driven gear (1004) connected to one side of the surface of the driven shaft (1003), the driven gear (1004) meshing with the drive gear (1002), and a spiral stirring blade (1005) installed on one side of the surface of the driven shaft (1003).

3. The experimental apparatus for anti-oxidation of lubricating oil according to claim 2, characterized in that, A drive motor (1006) is installed on one side of the interior of the experimental box (1). The output end of the drive motor (1006) is connected to a drive roller (1007). One end of the drive shaft (3) is connected to a driven roller (1008). A drive belt (1009) is connected between the drive roller (1007) and the driven roller (1008).

4. The experimental apparatus for anti-oxidation of lubricating oil according to claim 3, characterized in that, The driven discharge mechanism (11) includes a discharge pipe (1101) connecting the experimental chamber (1) and the heat insulation seat (2). A driven ring (1102) is rotatably connected to one side of the discharge pipe (1101). An exhaust fan (1103) is installed inside the driven ring (1102). A transmission belt (1104) is connected between the driven ring (1102) and the driven roller (1008).

5. The experimental apparatus for anti-oxidation of lubricating oil according to claim 1, characterized in that, The top of the experimental box (1) is fitted with a protective cover (12).

6. The experimental apparatus for anti-oxidation of lubricating oil according to claim 1, characterized in that, The limit seat (4) has clamping bolts (13) threaded on both sides.

7. The experimental apparatus for anti-oxidation of lubricating oil according to claim 5, characterized in that, An air inlet (14) is provided on one side of the surface of the protective cover (12).

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