Device for measuring high-temperature oxidation resistance of lubricating oil

Abstract

The utility model relates to the technical field of lubricating oil high-temperature oxidation resistance testing, and discloses a lubricating oil high-temperature oxidation resistance testing device which comprises a workbench, an air cylinder is fixedly connected to the upper surface of the workbench, a movable plate is fixedly connected to the output end of the air cylinder, and a sliding rod is fixedly connected to the outer wall of the movable plate. A sliding rod is fixedly connected to the upper surface of the workbench, a piston is fixedly connected to one end of the sliding rod, a support is fixedly connected to the upper surface of the workbench, a sliding sleeve is fixedly connected to the upper surface of the support, the outer wall of the piston is slidably connected to the inner wall of the sliding sleeve, and a fixing cylinder is fixedly connected to the upper surface of the support. According to the oil conveying device, oil is conveyed to the sliding sleeve through the conveying pipe, then the moving plate and the sliding rod are driven to move through the air cylinder, the problem that the oil conveying speed and quantity are difficult to control is solved, accurate control over oil conveying is achieved, and it is ensured that the oil conveying quantity meets the expected metering quantity every time; therefore, the accuracy and stability of the test are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-temperature anti-oxidation performance determination of lubricating oil, in particular to a device for determining the high-temperature anti-oxidation performance of lubricating oil. Background Art

[0002] The high-temperature antioxidant performance of lubricating oil refers to the ability of lubricating oil to resist oxidation reaction under high temperature conditions. Under high temperature environment, lubricating oil easily reacts with oxygen, resulting in changes in its properties, such as increased acid value, enhanced corrosiveness and destruction of colloidal structure, which will seriously affect the performance and life of lubricating oil. Therefore, for lubricating oils that need to work under high temperature conditions, such as aviation engine oils, automobile engine oils, etc., their high-temperature antioxidant performance is very important. The performance measuring device is used to simulate high temperature and high pressure conditions, and the oxidation induction period of lubricating oil, rotating oxygen bomb and other indicators are measured to evaluate its antioxidant capacity.

[0003] After searching, a device for measuring the high-temperature antioxidant performance of lubricating oil is disclosed in the announcement number: CN209640169U, wherein an insulating layer is sprayed on the outer wall of the metal shell, an oil bath cover is assembled on the top of the metal shell, a small metal oil cup is nested in the inner cavity of the test glass cup, a micro-injector is nested on the right side wall of the test glass cup, a gas collection bag is screwed on the top of the test glass cup, a gas source system is fixedly connected to the left side wall of the metal shell, a power controller is fixedly connected to the bottom of the gas source system, a temperature digital display is electrically connected to the front side wall of the power controller, a temperature sensor electrically connected to the power controller is arranged on the left side of the inner cavity of the metal shell, and a heating rod electrically connected to the power controller is fixedly arranged at the center of the inner cavity of the metal shell, so that the small metal oil cup can obtain a more uniform oil bath temperature, thereby improving the accuracy of lubricating oil testing. In this application, the oil is heated by the heating rod and the temperature is controlled by the temperature sensor. Such a setting makes it difficult to control the rate and amount of oil delivery, thereby making it difficult to accurately control and record the performance measurement of the oil. Utility Model Content

[0004] In order to remedy the above deficiencies, the utility model provides a device for measuring the high-temperature antioxidant performance of lubricating oil, aiming to improve the problem that it is difficult to control the rate and amount of oil delivery, and thus it is difficult to accurately control and record the performance measurement of the oil.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a device for measuring the high-temperature antioxidant performance of lubricating oil, comprising a workbench, a cylinder is fixedly connected to the upper surface of the workbench, a movable plate is fixedly connected to the output end of the cylinder, a sliding rod is fixedly connected to the outer wall of the movable plate, one end of the sliding rod is fixedly connected to a piston, a support is fixedly connected to the upper surface of the workbench, a sliding sleeve is fixedly connected to the upper surface of the support, the outer wall of the piston is slidably connected to the inner wall of the sliding sleeve, a fixed cylinder is fixedly connected to the upper surface of the support, the inner wall of the fixed cylinder is rotatably connected to a rotating cylinder, both sides of the outer wall of the rotating cylinder are fixedly connected to a rotating shaft, the outer wall of the rotating shaft is fixedly connected to a connecting plate, one end of the connecting plate is rotatably connected to the inside of the movable plate, a measuring chamber is fixedly connected to the inside of the workbench, one end of the sliding sleeve is fixedly connected to the inside of the measuring chamber, and an oil delivery component is arranged on the upper surface of the workbench.

[0006] Furthermore, the oil delivery assembly includes an oil storage tank and a delivery pipe, the lower surface of the oil storage tank is fixedly connected to the upper surface of the workbench, the interior of the oil storage tank is fixedly connected with the delivery pipe, and one end of the delivery pipe is fixedly connected to the interior of the sliding sleeve.

[0007] Furthermore, an oxygen tank is fixedly connected to the inside of the workbench, a base is fixedly connected to the bottom of the oxygen tank, a connecting pipe is fixedly connected to the inside of the oxygen tank, and one end of the connecting pipe is fixedly connected to the inside of the measuring chamber.

[0008] Furthermore, a sealing top plate is provided on the top of the measuring chamber, a motor is fixedly connected to the inside of the sealing top plate, and a bevel gear 1 is fixedly connected to the output end of the motor.

[0009] Furthermore, a rotating rod is rotatably connected inside the sealing top plate, a second bevel gear is fixedly connected to the upper side of the outer wall of the rotating rod, and the second bevel gear is meshed with the first bevel gear.

[0010] Furthermore, a fixing block is fixedly connected to the lower side of the outer wall of the rotating rod, and both ends of the fixing block are fixedly connected to the rotating blocks.

[0011] Furthermore, a stirring blade is rotatably connected inside the rotating block, and the bottom of the rotating rod is rotatably connected to the inside of the measuring chamber.

[0012] Furthermore, the outer wall of the rotating rod is rotatably connected to a stirring rod, the top of the stirring rod is fixedly connected to a bevel gear three, and the bevel gear three is meshed with the bevel gear one.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, the oil is first delivered to the sliding sleeve through the delivery pipe, and then the movable plate and the sliding rod are driven to move by the cylinder, thereby pushing the piston to slide in the sliding sleeve. At the same time, the driving plate moves to drive the connecting plate to rotate the rotating shaft, thereby driving the rotating cylinder to rotate in the fixed cylinder. The sliding sleeve is opened to cooperate with the piston to push the oil into the measuring chamber to achieve quantitative delivery, thereby solving the problem of difficulty in controlling the rate and amount of oil delivery, achieving precise control of oil delivery, ensuring that the amount of oil delivered each time meets the expected measurement, thereby improving the accuracy and stability of the test.

[0015] 2. In the utility model, the motor first drives the bevel gear 1 to rotate, and then drives the bevel gear 2 to rotate to rotate the rotating rod, and drives the rotating block and the stirring blade to rotate through the fixed block to stir the bottom of the measuring chamber, and at the same time drives the bevel gear 3 to rotate to rotate the stirring rod to achieve stirring of the inside of the measuring chamber, achieving uniform mixing, thereby improving the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of a device for measuring the high-temperature anti-oxidation performance of lubricating oil proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the oxygen tank structure of a device for measuring the high-temperature anti-oxidation performance of lubricating oil proposed by the utility model;

[0018] Figure 3 This is a schematic cross-sectional view of a sliding sleeve of a device for measuring the high-temperature anti-oxidation performance of lubricating oil proposed by the utility model;

[0019] Figure 4 The utility model provides a schematic cross-sectional view of a measuring chamber of a device for measuring the high-temperature anti-oxidation performance of lubricating oil.

[0020] Legend:

[0021] 1. Workbench; 2. Cylinder; 3. Moving plate; 4. Sliding rod; 5. Piston; 6. Support; 7. Sliding sleeve; 8. Fixed cylinder; 9. Rotating cylinder; 10. Rotating shaft; 11. Connecting plate; 12. Driving plate; 13. Measuring chamber; 14. Delivery pipe; 15. Oil storage tank; 16. Sealing top plate; 17. Motor; 18. Bevel gear one; 19. Bevel gear two; 20. Rotating rod; 21. Fixed block; 22. Rotating block; 23. Stirring blade; 24. Bevel gear three; 25. Stirring rod; 26. Base; 27. Connecting pipe; 28. Oxygen tank. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Reference Figure 1-3 The utility model provides an embodiment: a device for measuring the high-temperature antioxidant performance of lubricating oil, comprising a workbench 1, a cylinder 2 is fixedly connected to the upper surface of the workbench 1, a moving plate 3 is fixedly connected to the output end of the cylinder 2, a sliding rod 4 is fixedly connected to the outer wall of the moving plate 3, a piston 5 is fixedly connected to one end of the sliding rod 4, a support 6 is fixedly connected to the upper surface of the workbench 1, a sliding sleeve 7 is fixedly connected to the upper surface of the support 6, the outer wall of the piston 5 is slidably connected to the inner wall of the sliding sleeve 7, a fixed cylinder 8 is fixedly connected to the upper surface of the support 6, the inner wall of the fixed cylinder 8 is rotatably connected to a rotating cylinder 9, and both sides of the outer wall of the rotating cylinder 9 are A rotating shaft 10 is fixedly connected, a connecting plate 11 is fixedly connected to the outer wall of the rotating shaft 10, one end of the connecting plate 11 is rotatably connected to a driving plate 12, one end of the driving plate 12 is rotatably connected to the inside of the moving plate 3, a measuring chamber 13 is fixedly connected to the inside of the workbench 1, one end of the sliding sleeve 7 is fixedly connected to the inside of the measuring chamber 13, an oil delivery assembly is arranged on the upper surface of the workbench 1, the oil delivery assembly includes an oil storage tank 15 and a delivery pipe 14, the lower surface of the oil storage tank 15 is fixedly connected to the upper surface of the workbench 1, the inside of the oil storage tank 15 is fixedly connected to the delivery pipe 14, one end of the delivery pipe 14 is fixedly connected to the inside of the sliding sleeve 7;

[0024] Specifically, first, the oil in the oil storage tank 15 is introduced into the through hole in the rotating cylinder 9 through the delivery pipe 14. In particular, the rotating cylinder 9 is provided with three independent through holes, which have different functions. Two of the through holes are used to connect the delivery pipe 14 with the sliding sleeve 7 to transport the oil; the third through hole is located at the bottom and is sealed by the fixed cylinder 8 to ensure that the oil does not leak from this hole. Subsequently, the operator turns on the cylinder 2 located on the upper surface of the workbench 1. The output end of the cylinder 2 is connected to the moving plate 3. When the cylinder 2 is started, the moving plate 3 immediately moves along the axial direction of the cylinder. This movement is transmitted through the sliding rod 4, thereby driving the piston 5 to slide back and forth inside the sliding sleeve 7. This series of actions are carried out in coordination to ensure that the oil The liquid can be pushed smoothly. At the same time, with the movement of the driving plate 12, one end of the connecting plate 11 also moves, and the other end of the connecting plate 11 is connected to the rotating shaft 10. Therefore, when the connecting plate 11 moves, the rotating shaft 10 will also be driven to rotate. This rotation is transmitted through a series of gears, and finally drives the rotating cylinder 9 to rotate inside the fixed cylinder 8. This rotational motion makes the through hole inside the rotating cylinder 9 periodically align with the sliding sleeve 7, thereby realizing the function of controlling the outflow of oil. When the piston 5 reaches the end of the sliding sleeve 7 and passes through the through hole of the rotating cylinder 9, the oil is accurately pushed to the inside of the measuring chamber 13 in coordination with the action of the piston 5. Through the design of the sliding sleeve 7, precise control of oil delivery is achieved, ensuring the accuracy of each measurement.

[0025] Reference Figure 1-2 The workbench 1 is fixedly connected to an oxygen tank 28, the bottom of the oxygen tank 28 is fixedly connected to a base 26, the oxygen tank 28 is fixedly connected to a connecting pipe 27, and one end of the connecting pipe 27 is fixedly connected to the inside of the measuring chamber 13;

[0026] Specifically, the oxygen in the oxygen tank 28 is transported to the interior of the measuring chamber 13 through the connecting pipe 27 for reaction, thereby achieving the transport effect.

[0027] Reference Figure 4 A sealing top plate 16 is provided on the top of the measuring chamber 13, a motor 17 is fixedly connected inside the sealing top plate 16, a bevel gear 18 is fixedly connected to the output end of the motor 17, a rotating rod 20 is rotatably connected inside the sealing top plate 16, a bevel gear 2 19 is fixedly connected to the upper side of the outer wall of the rotating rod 20, the bevel gear 19 is meshed with the bevel gear 18, a fixed block 21 is fixedly connected to the lower side of the outer wall of the rotating rod 20, both ends of the fixed block 21 are fixedly connected to a rotating block 22, a stirring blade 23 is rotatably connected inside the rotating block 22, the bottom of the rotating rod 20 is rotatably connected to the inside of the measuring chamber 13, the outer wall of the rotating rod 20 is rotatably connected to a stirring rod 25, the top of the stirring rod 25 is fixedly connected to a bevel gear 3 24, the bevel gear 3 24 is meshed with the bevel gear 18;

[0028] Specifically, when the motor 17 is started, its output end will drive the bevel gear 18 to rotate. This rotation process is not isolated, and it will cause a series of chain reactions. The rotation of the bevel gear 18 will be transmitted to the bevel gear 2 19, and then the bevel gear 2 19 will drive the bevel gear 3 24 to rotate. The rotation of this series of gears is like a precise mechanical transmission system, which transmits the power smoothly. Then the rotation of the bevel gear 2 19 will drive the rotating rod 20 to rotate. This is an important turning point, because the existence of the rotating rod 20 makes the stirring process possible. When the rotating rod 20 rotates, it drives the rotating block 22 and the stirring blade 23 to rotate through the fixed block 21. This rotation method can effectively stir the bottom of the measuring chamber 13 so that the materials in the chamber are evenly mixed. At the same time, the rotation of the bevel gear three 24 will also drive the stirring rod 25 to rotate. This dual stirring method ensures the mixing effect of the materials inside the measuring chamber 13 and achieves the expected stirring effect. At the same time, the rotation of the bevel gear three 24 also drives the stirring rod 25 to rotate. The design of the stirring rod 25 is similar to that of the stirring blade 23. A number of protrusions are provided at the end thereof, which can further crush and disperse the experimental materials during the stirring process. In this way, the experimental materials can be evenly mixed more quickly during the stirring process, thereby improving the accuracy of the experimental results.

[0029] Working principle: When the lubricating oil high temperature antioxidant performance measuring device is needed, the oil in the oil storage tank 15 is first delivered to the inside of the sliding sleeve 7 through the delivery pipe 14 through the through hole inside the rotating cylinder 9. Since there are three through holes inside the rotating cylinder 9, two of the through holes connect the delivery pipe 14 with the sliding sleeve 7, and the other cylinder is sealed by the fixed cylinder 8 at the bottom. Then, the cylinder 2 on the upper surface of the workbench 1 is opened, and the movable plate 3 is driven to move through the output end of the cylinder 2, thereby driving the slide rod 4 and the driving plate 12 to move at the same time, and the movement of the slide rod 4 drives the piston 5 to slide inside the sliding sleeve 7. At the same time, the movement of the driving plate 12 drives one end of the connecting plate 11 to move, thereby driving the rotating shaft 10 to rotate through the other end of the connecting plate 11, and then driving the rotating cylinder 9 to rotate inside the fixed cylinder 8, so that The through hole inside the rotating cylinder 9 develops the sliding sleeve 7, and then cooperates with the piston 5 to push the oil into the interior of the measuring chamber 13, and the effect of quantitative oil delivery is achieved through the sliding sleeve 7, and then the oxygen inside the oxygen tank 28 is delivered to the interior of the measuring chamber 13 through the connecting pipe 27 to react with the oil. At this time, the motor 17 inside the sealing top plate 16 is turned on, and the output end of the motor 17 drives the bevel gear 1 18 to rotate, thereby driving the bevel gear 2 19 and the bevel gear 3 24 to rotate, and the rotation of the bevel gear 2 19 drives the rotating rod 20 to rotate, thereby driving the rotating block 22 and the stirring blade 23 to rotate through the fixed block 21, and stirring the bottom of the measuring chamber 13, and at the same time, the rotation of the bevel gear 3 24 drives the stirring rod 25 to rotate, thereby achieving the effect of stirring the inside of the measuring chamber 13.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for measuring the high temperature oxidation resistance of lubricating oil, comprising a workbench (1), characterized in that: The upper surface of the workbench (1) is fixedly connected to a cylinder (2), the output end of the cylinder (2) is fixedly connected to a movable plate (3), the outer wall of the movable plate (3) is fixedly connected to a sliding rod (4), one end of the sliding rod (4) is fixedly connected to a piston (5), the upper surface of the workbench (1) is fixedly connected to a support (6), the upper surface of the support (6) is fixedly connected to a sliding sleeve (7), the outer wall of the piston (5) is slidably connected to the inner wall of the sliding sleeve (7), the upper surface of the support (6) is fixedly connected to a fixed cylinder (8), the fixed cylinder (8 ) is rotatably connected to the inner wall of the workbench (1), the outer walls of the rotating cylinder (9) are fixedly connected to rotating shafts (10) on both sides, the outer wall of the rotating shaft (10) is fixedly connected to a connecting plate (11), one end of the connecting plate (11) is rotatably connected to a driving plate (12), one end of the driving plate (12) is rotatably connected to the inside of the moving plate (3), the inside of the workbench (1) is fixedly connected to a measuring chamber (13), one end of the sliding sleeve (7) is fixedly connected to the inside of the measuring chamber (13), and an oil delivery component is arranged on the upper surface of the workbench (1).

2. The device for measuring the high temperature oxidation resistance of lubricating oil according to claim 1, characterized in that: The oil delivery assembly comprises an oil storage tank (15) and a delivery pipe (14); the lower surface of the oil storage tank (15) is fixedly connected to the upper surface of the workbench (1); the interior of the oil storage tank (15) is fixedly connected to the delivery pipe (14); and one end of the delivery pipe (14) is fixedly connected to the interior of the sliding sleeve (7).

3. A device for measuring the high temperature oxidation resistance of lubricating oil according to claim 2, characterized in that: An oxygen tank (28) is fixedly connected to the interior of the workbench (1), a base (26) is fixedly connected to the bottom of the oxygen tank (28), a connecting pipe (27) is fixedly connected to the interior of the oxygen tank (28), and one end of the connecting pipe (27) is fixedly connected to the interior of the measuring chamber (13).

4. A device for measuring the high temperature oxidation resistance of lubricating oil according to claim 3, characterized in that: A sealing top plate (16) is provided on the top of the measuring chamber (13), a motor (17) is fixedly connected to the inside of the sealing top plate (16), and a bevel gear 1 (18) is fixedly connected to the output end of the motor (17).

5. The device for measuring the high temperature oxidation resistance of lubricating oil according to claim 4, characterized in that: The sealing top plate (16) is rotatably connected to a rotating rod (20) inside, and a second bevel gear (19) is fixedly connected to the upper side of the outer wall of the rotating rod (20), and the second bevel gear (19) is meshed with the first bevel gear (18).

6. The device for measuring the high temperature oxidation resistance of lubricating oil according to claim 5, characterized in that: A fixing block (21) is fixedly connected to the lower side of the outer wall of the rotating rod (20), and both ends of the fixing block (21) are fixedly connected to rotating blocks (22).

7. The device for measuring the high temperature oxidation resistance of lubricating oil according to claim 6, characterized in that: The interior of the rotating block (22) is rotatably connected to a stirring blade (23), and the bottom of the rotating rod (20) is rotatably connected to the interior of the measuring chamber (13).

8. The device for measuring the high temperature oxidation resistance of lubricating oil according to claim 7, characterized in that: The outer wall of the rotating rod (20) is rotatably connected to a stirring rod (25), and the top of the stirring rod (25) is fixedly connected to a bevel gear three (24), and the bevel gear three (24) is meshed with a bevel gear one (18).

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