A lubricating oil performance testing device

By designing a lubricating oil performance testing device, and using gear and sensor assemblies to analyze the flow time and temperature changes of lubricating oil in different flow channels, this technology overcomes the shortcomings of existing technologies in detecting the viscosity of lubricating oil based on usage frequency and environmental factors. This enables accurate assessment of lubricating oil usage frequency and ensures the normal operation of the equipment.

CN121141435BActive Publication Date: 2026-03-13SHAANXI HONGYE PETROCHEMICAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-11-19
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing technologies fail to effectively detect viscosity changes in lubricating oil after use, especially under the influence of the number of uses, changes in ambient temperature, and the size of the flow channel cross-section, making it difficult to determine the reasonable range of uses for lubricating oil.

Method used

A lubricating oil performance testing device was designed, comprising a lubrication tank body, an oil slide rail, a gear assembly, a sensor assembly, and an oil pumping system. By controlling the flow time and temperature changes of lubricating oil in different flow channels, the device analyzes the viscosity changes of lubricating oil and the influence of usage time, ambient temperature, and flow channel cross-section on viscosity.

Benefits of technology

It enables precise detection of lubricating oil viscosity, determines the range of lubricating oil usage cycles, and analyzes the effects of ambient temperature and flow channel cross-section on viscosity, ensuring the normal operation of mechanical equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to the field of lubricating oil testing technology and discloses a lubricating oil performance testing device, including a lubrication tank body and an oil slide rail disposed below the lubrication tank body. The oil slide rail is inclined, and a gear assembly for agitating the lubricating oil is disposed within the lubrication tank body. The lubrication tank body is rotatably connected to the oil slide rail via a rotating shaft assembly. In this invention, timing begins when the lubricating oil, after use, flows from the second flow channel and reaches the first sensor assembly. The oil then continues to flow within the second flow channel until it reaches the end of the second flow channel, where it reaches the second sensor assembly, at which point timing stops. The lubricating oil is then pumped back into the lubrication tank body by a pumping assembly, achieving a reciprocating recycling effect. Multiple sets of data h2-h1, h4-h3, h6-h5, and h8-h7 are obtained. The values ​​of h2-h1, h4-h3, h6-h5, and h8-h7 are analyzed to determine whether there is a linear relationship between the viscosity change of the lubricating oil and the usage time of the lubricating oil.
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Description

Technical Field

[0001] This invention relates to the field of lubricating oil testing technology, and in particular to a lubricating oil performance testing device. Background Technology

[0002] The definition of lubricating oil is broad, encompassing engine oil, gear oil, hydraulic oil, etc. Its primary function is lubrication, reducing mechanical friction, slowing wear, preventing overheating of machine parts, and ensuring normal mechanical operation. One of the key factors affecting the lubricating effect of lubricating oil is its viscosity. Different viscosities of lubricating oil will have different effects on mechanical operation, therefore, it is necessary to test the viscosity of lubricating oil. However, existing methods for testing the viscosity of lubricating oil generally have shortcomings.

[0003] First, the viscosity of different lubricating oils changes with the number of uses. Therefore, the viscosity test of lubricating oil needs to be continuously tested to take into account the changes in the number of times it is used. However, the existing technology does not test the viscosity of lubricating oil after use to determine the reasonable range of the number of times the corresponding lubricating oil can be used.

[0004] Secondly, multiple factors need to be considered when testing the viscosity of lubricating oil, such as whether the cross-sectional area of ​​the flow and the temperature will affect the viscosity of the lubricating oil. These factors also need to be compared and tested.

[0005] To address this, we designed a lubricating oil performance testing device. Summary of the Invention

[0006] The purpose of this invention is to solve the problem that existing technologies do not perform viscosity testing on lubricating oil after use to determine the reasonable range of times the lubricating oil can be used, and to propose a lubricating oil performance testing device.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A lubricating oil performance testing device includes a lubricating tank body and an oil slide rail disposed below the lubricating tank body. The oil slide rail is inclined. A gear assembly for agitating the lubricating oil is disposed inside the lubricating tank body. The lubricating tank body is rotatably connected to the oil slide rail via a rotating shaft assembly. An oil receiving tank is disposed at the other end of the oil slide rail. The oil receiving tank pumps the lubricating oil into the lubricating tank body through an oil pumping assembly.

[0009] The oil slide rail is provided with multiple partition plates, which are arranged in parallel and divide the oil slide rail into a first flow channel, a second flow channel and a third flow channel for comparison and reference. Each of the first flow channel, the second flow channel and the third flow channel is provided with a first sensor assembly and a second sensor assembly. The first sensor assembly and the second sensor assembly are used to detect the duration of lubricating oil flowing between the first sensor assembly and the second sensor assembly.

[0010] Preferably, the gear assembly includes:

[0011] Two rotating rods, each with a rotating gear fixed coaxially, the rotating rods pass through one side of the lubrication box body, and the two rotating gears located inside the lubrication box body mesh with each other;

[0012] The peripheral drive mechanism has its output end fixed coaxially with one of the rotating rods.

[0013] Preferably, the rotating shaft assembly includes a hinge and a pushing mechanism, the lubrication tank body and the oil slide rail are rotatably connected by the hinge, and the pushing mechanism is used to push the oil slide rail to flip.

[0014] Preferably, the oil tank is provided with multiple baffles corresponding one-to-one with the partition plates, and the multiple baffles divide the oil tank into multiple oil outlet chambers. The oil pump assembly includes:

[0015] The oil outlet pipe is provided in multiple configurations and is connected to the oil outlet chamber. An electric oil pump is installed on the top of the lubrication tank body and is connected to the oil outlet pipe via a rubber hose.

[0016] Preferably, an oil-blocking block is inserted on the lubrication box body to block the lubrication box body and the oil slide rail. The outer wall of the oil-blocking block is provided with a rubber pad. A side plate is fixed on one side of the oil-blocking block outside the lubrication box body. An electric hydraulic rod is fixed on the outer wall of the lubrication box body, and the output end of the electric hydraulic rod is connected to the side plate.

[0017] Preferably, the first flow channel and the third flow channel have the same cross-section, the second flow channel has a larger cross-section than the first flow channel, and the first flow channel is provided with a heating metal wire.

[0018] Preferably, a sliding plate is slidably mounted on the first flow channel, the second flow channel, and the third flow channel, and an oil scraper is slidably mounted on the sliding plate to scrape off the oil from the inner wall of the first flow channel, the second flow channel, and the third flow channel, and the oil scraper is covered with a rubber layer.

[0019] Preferably, the sliding plate slides on the partition plate via a slide rail and a sliding block, a limit rod is vertically fixed on the sliding plate, a second magnet plate that slides through the limit rod is fixed at the top of the oil scraper, and a second electromagnetic generator is fixed at the end of the limit rod.

[0020] Preferably, side baffles are symmetrically inserted between the lubrication box body and the oil slide rail, and the two side baffles block the first flow channel and the third flow channel. A first magnet plate is fixed on the side baffle, and the side baffles are reset and extended between the lubrication box body and the oil slide rail by a reset spring. A first electromagnetic generator is provided on the side of the lubrication box body facing the first magnet plate.

[0021] Preferably, the second sensor assembly is disposed in the first flow channel, the second flow channel and the third flow channel facing the end of the oil tank, and the first sensor assembly on the first flow channel, the second flow channel and the third flow channel is located on the same horizontal plane.

[0022] The beneficial effects of this invention are as follows:

[0023] 1. In this invention, timing begins when the lubricating oil, after being used, flows from the second flow channel to the first sensor assembly. The oil then continues to flow within the second flow channel until it reaches the end of the second flow channel and then the second sensor assembly. Timing stops thereafter. The lubricating oil is then pumped back into the lubrication tank body via the oil pump assembly, allowing this portion of the lubricating oil to be recycled repeatedly. Multiple sets of data h2-h1, h4-h3, h6-h5, and h8-h7 are obtained. The values ​​of h2-h1, h4-h3, h6-h5, and h8-h7 are used to analyze whether there is a linear relationship between the viscosity change of the lubricating oil and the usage time of the lubricating oil.

[0024] 2. In this invention, the lubricating oil can simultaneously flow into the first flow channel, the second flow channel, and the third flow channel. When the lubricating oil flows between the first sensor assembly and the second sensor assembly in the first flow channel, the second flow channel, and the third flow channel, respectively, the recorded flow durations are a2-a1, b2-b1, and c2-c1. By comparing these three data, the comparison between a2-a1 and c2-c1 can determine whether the temperature change of the environment in which the lubricating oil is located affects the viscosity of the lubricating oil; the comparison between b2-b1 and c2-c1 can determine whether the cross-sectional size of the channel through which the lubricating oil flows affects the flow velocity of the lubricating oil. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a lubricating oil performance testing device proposed in this invention;

[0026] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0027] Figure 3 for Figure 1 Enlarged structural diagram at point B;

[0028] Figure 4This is a front view of a lubricating oil performance testing device proposed in this invention;

[0029] Figure 5 This is a schematic diagram of the oil scraping state of a lubricating oil performance testing device proposed in this invention;

[0030] Figure 6 This is a schematic diagram of the flipping state of the oil slide rail in a lubricating oil performance testing device proposed in this invention.

[0031] In the diagram: 1. Lubrication tank body; 2. Oil slide rail; 3. Rotating shaft assembly; 4. Side baffle; 5. First magnet plate; 6. Return spring; 7. First flow channel; 8. Second flow channel; 9. Third flow channel; 10. Oil tank; 11. Baffle plate; 12. First sensor assembly; 13. Second sensor assembly; 14. Divider plate; 15. Slide rail; 16. Sliding plate; 17. Sliding block; 18. Oil scraper; 19. Second magnet plate; 20. Limiting rod; 21. Second electromagnetic generator; 22. Oil outlet pipe; 23. Electric oil pump; 24. Oil blocking block; 25. Side plate; 26. Electro-hydraulic rod; 27. Rotating rod; 28. Rotating gear. Detailed Implementation

[0032] Reference Figures 1-6 A lubricating oil performance testing device includes a lubrication tank body 1 and an oil slide rail 2 disposed below the lubrication tank body 1. The oil slide rail 2 is inclined, so that the lubricating oil in the lubrication tank body 1 can leak out from the lubrication tank body 1 and fall onto the oil slide rail 2. Since the oil slide rail 2 is inclined, the lubricating oil falling onto the oil slide rail 2 can slide from the top of the oil slide rail 2 to the bottom of the oil slide rail 2, thus providing a sliding channel for the viscosity testing of the lubricating oil.

[0033] It should be noted that controlled variables need to be used in the viscosity testing of lubricating oil, namely, the changes in lubricating oil viscosity caused by the following three variables;

[0034] Firstly: Does the duration of lubricant use affect its viscosity?

[0035] Secondly: Does the temperature change of the environment in which the lubricating oil is located affect the viscosity of the lubricating oil?

[0036] Thirdly: Does the cross-sectional size of the channel through which the lubricating oil flows affect the flow rate of the lubricating oil?

[0037] For the first variable, whether the duration of lubricant use affects the viscosity of the lubricant, it is necessary to provide a usage scenario for the lubricant, namely, to set up a gear assembly that agitates the lubricant in the lubrication tank body 1, in order to simulate the lubrication effect of the lubricant on the gear assembly during operation.

[0038] The gear assembly includes two rotating rods 27, and each rotating rod 27 is coaxially fixed with a rotating gear 28. The rotating rods 27 pass through one side of the lubrication box body 1. The two rotating gears 28 located inside the lubrication box body 1 mesh with each other. During the meshing and rotation of the two rotating gears 28, the lubricating oil lubricates the two rotating gears 28. By controlling the meshing and rotation time of the two rotating gears 28, the usage time of the lubricating oil can be controlled.

[0039] The gear assembly also includes an external drive mechanism. The output end of the external drive mechanism is coaxially fixed with one of the rotating rods 27, thus providing driving force for the meshing and rotation of the two rotating gears 28. The external drive mechanism is a drive motor.

[0040] It should be noted that an oil blocking block 24 is inserted on the lubrication box body 1 to block the lubrication box body 1 and the oil slide rail 2. The outer wall of the oil blocking block 24 is provided with a rubber pad. Therefore, the oil blocking block 24 is used to provide a sealed space for the lubrication box body 1 to prevent the lubricating oil from leaking prematurely during the lubrication process and to provide a sealed space for the lubrication use of the lubricating oil.

[0041] A side plate 25 is fixed to one side of the oil blocking block 24 located outside the lubrication box body 1. An electric hydraulic rod 26 is fixed to the outer wall of the lubrication box body 1, and the output end of the electric hydraulic rod 26 is connected to the side plate 25. Therefore, during the lubrication process of the two rotating gears 28 meshing and transmitting, the lubricating oil is also used. When the lubricating oil has been used for the required time, the electric hydraulic rod 26 is turned on, which moves the oil blocking block 24 on the side plate 25, thereby opening the oil blocking block 24 that originally blocked the lubrication box body 1, allowing the used lubricating oil to leak out from the lubrication box body 1.

[0042] Furthermore, by controlling the opening duration of the oil blocking block 24, the amount of lubricating oil flowing into the oil slide rail 2 can be controlled, thereby ensuring that the amount of oil flowing into the oil slide rail 2 is the same each time.

[0043] The oil slide rail 2 is provided with multiple partition plates 14, which are arranged in parallel and divide the oil slide rail 2 into a first flow channel 7, a second flow channel 8, and a third flow channel 9 for comparison and reference. The first flow channel 7, the second flow channel 8, and the third flow channel 9 provide channels for the sliding of lubricating oil.

[0044] Previously, since it was only necessary to check whether the usage time of the lubricating oil affected its viscosity, only the second flow channel 8 was needed. Therefore, the tops of the first flow channel 7 and the third flow channel 9 needed to be blocked.

[0045] A first magnet plate 5 is fixed on the side insert baffle 4, and the side insert baffle 4 is reset and extended between the lubrication box body 1 and the oil slide rail 2 by the reset spring 6. The lubrication box body 1 is provided with a first electromagnetic generator on the side facing the first magnet plate 5. At this time, the first electromagnetic generator is not turned on, and the side insert baffle 4 is inserted into the lubrication box body 1 under the action of the reset spring 6 and blocks the first flow channel 7 and the third flow channel 9.

[0046] Side baffles 4 are symmetrically inserted between the lubrication box body 1 and the oil slide rail 2, and the two side baffles 4 block the first flow channel 7 and the third flow channel 9. The side baffles 4 abut against the bottom of the flat oil blocking block 24. Therefore, after the oil blocking block 24 opens the channel between the lubrication box body 1 and the oil slide rail 2, the used lubricating oil can flow from the gap between the two side baffles 4 into the second flow channel 8 on the oil slide rail 2.

[0047] The other end of the oil slide rail 2 is provided with an oil tank 10. The oil tank 10 is provided with a plurality of baffles 11 corresponding one-to-one with the partition plate 14, and the plurality of baffles 11 divide the oil tank 10 into a plurality of oil outlet chambers. Therefore, the bottom of the first flow channel 7, the second flow channel 8 and the third flow channel 9 each correspond to an oil outlet chamber. Thus, the lubricating oil flowing from top to bottom in the first flow channel 7, the second flow channel 8 and the third flow channel 9 reaches the oil outlet chamber in the oil tank 10 and is temporarily stored.

[0048] Each of the first flow channel 7, the second flow channel 8, and the third flow channel 9 is equipped with a first sensor assembly 12 and a second sensor assembly 13. The first sensor assembly 12 and the second sensor assembly 13 are used to detect the duration of lubricating oil flowing through the first sensor assembly 12 and the second sensor assembly 13. The second sensor assembly 13 is located at the end of the first flow channel 7, the second flow channel 8, and the third flow channel 9 facing the oil tank 10. The first sensor assemblies 12 on the first flow channel 7, the second flow channel 8, and the third flow channel 9 are located on the same horizontal plane. Therefore, when the lubricating oil that has been used flows from the second flow channel 8 to the first sensor assembly 12, the timing h1 starts. Then, as the lubricating oil continues to flow in the second flow channel 8, it reaches the end of the second flow channel 8 and then reaches the second sensor assembly 13, and the timing h2 stops. Therefore, the duration of the used lubricating oil flowing in the second flow channel 8 is h2-h1.

[0049] The oil tank 10 circulates lubricating oil into the lubrication tank body 1 through the oil pump assembly, allowing the lubricating oil to be recycled repeatedly. The oil pump assembly includes multiple oil outlet pipes 22, which are connected to the oil outlet chamber. An electric oil pump 23 is installed on the top of the lubrication tank body 1, and the electric oil pump 23 is connected to the oil outlet pipes 22 through a rubber hose. The oil outlet chamber corresponding to the second flow channel 8 is connected to the electric oil pump 23 through a rubber hose. Therefore, when the electric oil pump 23 is turned on, the lubricating oil that has passed through the second flow channel 8 is pumped back into the lubrication tank body 1. At this time, the oil blocking block 24 in the lubrication tank body 1 is in a blocked state, so the lubricating oil that has re-entered the lubrication tank body 1 will be temporarily stored in the lubrication tank body 1. Then, the gear assembly is turned on again to allow the gear assembly to continue to work, so that the lubricating oil can be used again for lubrication, thereby continuously improving the service life of the lubricating oil.

[0050] It should be noted that sliding plates 16 are slidably mounted on the first flow channel 7, the second flow channel 8, and the third flow channel 9, and an oil scraper 18 for scraping the oil from the inner walls of the first flow channel 7, the second flow channel 8, and the third flow channel 9 is slidably mounted on the sliding plates 16. The sliding plates 16 slide on the partition plate 14 via the slide rail 15 and the sliding block 17. A limit rod 20 is vertically fixed on the sliding plates 16. A second magnet plate 19 that slides through the limit rod 20 is fixed to the top of the oil scraper 18. A second electromagnetic generator 21 is fixed to the end of the limit rod 20. At this time, a reverse current is applied to the second electromagnetic generator 21, and the second electromagnetic generator 21, which originally attracted the second magnet plate 19, now pushes the second magnet plate 19, thus driving the oil scraper 18 to press down.

[0051] Then, the external pushing device is activated to drive the sliding plate 16 to slide on the partition plate 14, thereby achieving the effect of scraping off the lubricating oil from the inner walls of the first flow channel 7, the second flow channel 8, and the third flow channel 9.

[0052] The scraper 18 is pressed down and inserted into the first flow channel 7, the second flow channel 8, and the third flow channel 9, and abuts against the inner walls of the first flow channel 7, the second flow channel 8, and the third flow channel 9. Since the scraper 18 is covered with a rubber layer, when the scraper 18 slides towards the oil tank 10, it can scrape off the lubricating oil adhering to the inner walls of the first flow channel 7, the second flow channel 8, and the third flow channel 9, ensuring that no residual lubricating oil will affect subsequent testing during subsequent use.

[0053] At this time, the lubricating oil adhering to the inner wall of the second flow channel 8 is scraped off by the oil scraper 18 and pushed into the oil tank 10. Then, through the external pushing device and the positive current supplied to the second electromagnetic generator 21, the oil scraper 18 is reset.

[0054] Then, the lubricating oil, which has been used again, flows in from the top of the second flow channel 8. When the lubricating oil reaches the first sensor assembly 12 after being used again, timing starts for h3. As the lubricating oil continues to flow in the second flow channel 8, it reaches the end of the second flow channel 8 and then reaches the second sensor assembly 13, at which point timing stops for h4. Therefore, the time for the lubricating oil to flow in the second flow channel 8 after being used again is h4-h3. At this time, two sets of data are obtained: h2-h1 and h4-h3. Similarly, multiple sets of data can be obtained, such as h6-h1. 5. Compare multiple sets of data, including h2-h1, h4-h3, h6-h5, and h8-h7. If the values ​​of h2-h1, h4-h3, h6-h5, and h8-h7 are not significantly different, it indicates that the usage time of the lubricating oil does not affect its viscosity. If there are differences in the values ​​of h2-h1, h4-h3, h6-h5, and h8-h7, it indicates that the usage time of the lubricating oil does affect its viscosity. Furthermore, we can analyze whether there is a linear relationship between the viscosity change of the lubricating oil and the usage time of the lubricating oil by examining the values ​​of h2-h1, h4-h3, h6-h5, and h8-h7.

[0055] For the second and third variables, whether the temperature change of the environment in which the lubricating oil is located affects the viscosity of the lubricating oil and whether the cross-sectional size of the channel through which the lubricating oil flows affects the flow rate of the lubricating oil, it is necessary to open the other two channels, namely the first flow channel 7 and the third flow channel 9.

[0056] Therefore, when the first electromagnetic generator is turned on, it generates the same magnetic field as the first magnetic plate 5 on one side of the first magnetic plate 5. At this time, the first magnetic plate 5, along with the side baffle 4, can no longer block the first flow channel 7 and the third flow channel 9. That is, the first flow channel 7, the second flow channel 8, and the third flow channel 9 are open at the same time.

[0057] It should be noted that the first flow channel 7 and the third flow channel 9 have the same cross-section, while the cross-section of the second flow channel 8 is larger than that of the first flow channel 7. Therefore, the comparison between the second flow channel 8 and the third flow channel 9 can detect whether the cross-sectional size of the channel through which the lubricating oil flows affects the flow rate of the lubricating oil. Since the first flow channel 7 is equipped with a heating wire, when the heating wire is heated, the lubricating oil in the first flow channel 7 is in a heated state. The comparison between the first flow channel 7 and the third flow channel 9 can detect whether the temperature change of the environment in which the lubricating oil is located affects the viscosity of the lubricating oil.

[0058] Similarly, when the electric hydraulic rod 26 is activated, the oil blocking block 24 on the side plate 25 is moved, which opens the oil blocking block 24 that originally blocked the lubrication tank body 1, allowing the used lubricating oil to leak out from the lubrication tank body 1. The lubricating oil can then fall into the first flow channel 7, the second flow channel 8, and the third flow channel 9 at the same time. When the lubricating oil flows between the first sensor assembly 12 and the second sensor assembly 13 in the first flow channel 7, the second flow channel 8, and the third flow channel 9, the recorded flow times are a2-a1, b2-b1, and c2-c1, respectively. These three data are then compared.

[0059] The comparison between a2-a1 and c2-c1 can lead to the conclusion that the temperature change of the environment in which the lubricating oil is located affects the viscosity of the lubricating oil; the comparison between b2-b1 and c2-c1 can lead to the conclusion that the cross-sectional size of the channel through which the lubricating oil flows affects the flow velocity of the lubricating oil.

[0060] Furthermore, the lubrication box body 1 is rotatably connected to the oil slide rail 2 via the rotating shaft assembly 3. The rotating shaft assembly 3 includes a hinge and a pushing mechanism. The lubrication box body 1 and the oil slide rail 2 are rotatably connected via the hinge, and the pushing mechanism is used to push the oil slide rail 2 to flip. The tilt angle of the oil slide rail 2 can be adjusted to adjust the duration of the entire test, or to control the duration of lubricating oil flow during the test.

[0061] The working principle of this invention is as follows:

[0062] First, the lubricating oil to be tested is poured into the lubrication tank body 1. The lubricating oil in the lubrication tank body 1 can then leak out and fall onto the oil slide rail 2. Since the oil slide rail 2 is tilted, the lubricating oil that falls onto the oil slide rail 2 can slide from the top of the oil slide rail 2 to the bottom of the oil slide rail 2, thus providing a sliding channel for the viscosity testing of the lubricating oil.

[0063] To test whether the duration of lubricant use affects its viscosity, the gear assembly is activated. During the lubrication process of the two rotating gears 28 meshing, the lubricant's usage is monitored. Then, the electric hydraulic rod 26 is activated, moving the oil-blocking block 24 on the side plate 25. This opens the block, allowing the used lubricant to leak out. Timing begins when the used lubricant flows through the second flow channel 8 and reaches the first sensor assembly 12. As the lubricant continues to flow through the second flow channel 8, it reaches the second sensor assembly 13, at which point timing stops (h2). Therefore, the duration of the used lubricant flow in the second flow channel 8 is h2-h1. The lubricant is then pumped back into the lubricant tank 1 via the oil pump assembly, achieving a reciprocating cycle. This process is repeated to obtain multiple sets of data (h4-h3, h6-h5, and h8-h7), which are then analyzed.

[0064] To determine whether temperature changes in the environment where the lubricating oil is located affect its viscosity and whether the cross-sectional size of the channel through which the lubricating oil flows affects its flow rate, the other two channels, namely the first flow channel 7 and the third flow channel 9, need to be opened.

[0065] The lubricating oil can fall into the first flow channel 7, the second flow channel 8 and the third flow channel 9 at the same time. When the lubricating oil flows between the first sensor assembly 12 and the second sensor assembly 13 in the first flow channel 7, the second flow channel 8 and the third flow channel 9 respectively, the recorded flow times are a2-a1, b2-b1 and c2-c1 respectively. These three data are compared.

[0066] The comparison between a2-a1 and c2-c1 can lead to the conclusion that the temperature change of the environment in which the lubricating oil is located affects the viscosity of the lubricating oil; the comparison between b2-b1 and c2-c1 can lead to the conclusion that the cross-sectional size of the channel through which the lubricating oil flows affects the flow velocity of the lubricating oil.

[0067] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A lubricating oil performance testing device, comprising a lubrication tank body (1) and an oil slide rail (2) disposed below the lubrication tank body (1), characterized in that, The oil slide rail (2) is inclined. The lubrication box body (1) is equipped with a gear assembly for agitating the lubricating oil. The lubrication box body (1) is rotatably connected to the oil slide rail (2) through the rotating shaft assembly (3). The other end of the oil slide rail (2) is equipped with an oil receiving tank (10). The oil receiving tank (10) pumps the lubricating oil into the lubrication box body (1) through the oil pumping assembly. Multiple partition plates (14) are provided on the oil slide rail (2). The partition plates (14) are arranged in parallel and divide the oil slide rail (2) into a first flow channel (7), a second flow channel (8), and a third flow channel (9) for comparison and reference. A first sensor assembly (12) and a second sensor assembly (13) are provided on the first flow channel (7), the second flow channel (8), and the third flow channel (9). The first sensor assembly (12) and the second sensor assembly (13) are used to detect the duration of lubricating oil flowing between the first sensor assembly (12) and the second sensor assembly (13). The gear assembly includes: Two rotating rods (27) are fixed with rotating gears (28) on the same axis. The rotating rods (27) pass through one side of the lubrication box body (1), and the two rotating gears (28) located inside the lubrication box body (1) mesh with each other. An external drive mechanism is provided, with its output end coaxially fixed to one of the rotating rods (27). The rotating shaft assembly (3) includes a hinge and a pushing mechanism. The lubrication tank body (1) is rotatably connected to the oil slide rail (2) via the hinge, and the pushing mechanism is used to push the oil slide rail (2) to flip. The first flow channel (7) and the third flow channel (9) have the same cross-section, and the cross-section of the second flow channel (8) is larger than that of the first flow channel (7). A heating metal wire is provided in the first flow channel (7). The second sensor assembly (13) is located at the end of the first flow channel (7), the second flow channel (8), and the third flow channel (9) facing the oil tank (10). The first sensor assembly (12) on the first flow channel (7), the second flow channel (8), and the third flow channel (9) is located on the same horizontal plane. The oil tank (10) is provided with multiple baffles (11) corresponding to the partition plate (14), and the multiple baffles (11) divide the oil tank (10) into multiple oil outlet chambers. The oil pump assembly includes: Oil outlet pipe (22) is provided in multiple ways and is connected to the oil outlet chamber. An electric oil pump (23) is provided on the top of the lubrication box body (1) and the electric oil pump (23) is connected to the oil outlet pipe (22) through a rubber hose.

2. The lubricating oil performance testing device according to claim 1, characterized in that, An oil blocking block (24) is inserted on the lubrication box body (1) to block the lubrication box body (1) and the oil slide rail (2). The outer wall of the oil blocking block (24) is provided with a rubber pad. A side plate (25) is fixed on one side of the oil blocking block (24) located outside the lubrication box body (1). An electric hydraulic rod (26) is fixed on the outer wall of the lubrication box body (1), and the output end of the electric hydraulic rod (26) is connected to the side plate (25).

3. The lubricating oil performance testing device according to claim 1, characterized in that, Sliding plates (16) slide on the first flow channel (7), the second flow channel (8) and the third flow channel (9), and an oil scraper (18) for scraping the oil from the inner walls of the first flow channel (7), the second flow channel (8) and the third flow channel (9) slides through the sliding plate (16), and the oil scraper (18) is covered with a rubber layer.

4. The lubricating oil performance testing device according to claim 3, characterized in that, The sliding plate (16) slides on the partition plate (14) via the slide rail (15) and the sliding block (17). A limit rod (20) is vertically fixed on the sliding plate (16). A second magnet plate (19) is fixed at the top of the oil scraper (18) and slides through the limit rod (20). A second electromagnetic generator (21) is fixed at the end of the limit rod (20).

5. The lubricating oil performance testing device according to claim 1, characterized in that, A side baffle (4) is symmetrically inserted between the lubrication box body (1) and the oil slide rail (2), and the two side baffles (4) block the first flow channel (7) and the third flow channel (9). A first magnet plate (5) is fixed on the side baffle (4), and the side baffle (4) is reset and extended between the lubrication box body (1) and the oil slide rail (2) by a reset spring (6). A first electromagnetic generator is provided on the side of the lubrication box body (1) facing the first magnet plate (5).

Citation Information

Patent Citations

  • Testing device and testing method for automobile lubricating oil

    CN120761213A

  • Centralized lubrication and lubricating oil monitoring system

    CN215569644U

  • Method and apparatus for evaluating flow resistance

    JP1994018398A