A device for testing the oil resistance of lubricating oils

Abstract

The present application relates to the field of lubricating oil production, and particularly relates to a lubricating oil production oil pressure resistance performance test device, which comprises a test barrel, a resisting plate is arranged in the test barrel, a friction plate is arranged in the middle of the resisting plate, an electric wheel is arranged on the side of the friction plate close to the resisting plate, the electric wheel is arranged with a lifting frame, the lifting frame is slidingly connected to the resisting plate, the top of the lifting frame is fixedly connected with symmetrically arranged pull ropes, a plurality of guide wheels are rotatably connected to the side of the test barrel close to the pull ropes, the pull ropes pass through the test barrel, the pull ropes pass around the guide wheels, a lifting platform is connected between the ends of the pull ropes, the lifting platform is slidingly connected to the test barrel, and an oil pan is connected to the bottom of the lifting frame, the device is simple to operate, the pressure is accurately adjusted by relying on the counterweight, and different test requirements are adapted. Lubricating oil filling and flow interruption sealing can be automatically completed, oil is continuously supplied to the friction part, manual oil adding is not needed, the oil pan is synchronously lifted with the structure, the electric wheel is always immersed in the oil, and the real working condition is simulated.

Description

Technical Field

[0001] This invention relates to the field of lubricant production, and more particularly to a device for testing the oiliness and compressive strength of lubricant production. Background Technology

[0002] Lubricating oil is a core auxiliary material for the operation of various power and friction equipment such as industrial equipment, mechanical transmission devices, and vehicles. It primarily serves multiple functions including lubrication, friction reduction, pressure resistance, heat dissipation, and rust prevention. Its oiliness and pressure resistance properties are key indicators of lubricating oil quality, directly determining the operational stability and service life of equipment under high load, strong extrusion, and high-frequency friction conditions. Therefore, during the lubricating oil production and processing, precise pressure resistance tests must be conducted to assess the lubricating oil's pressure-bearing wear resistance and adhesion anti-wear capabilities, ensuring that the quality of the lubricating oil leaving the factory meets the standards and satisfies the operating requirements of various mechanical equipment.

[0003] Currently, the industry commonly uses wheel friction extrusion test to test the oiliness and pressure resistance of lubricating oils. The core working principle of the conventional test device is as follows: the lubricating oil to be tested is evenly applied to the surface of the electric wheel, and the electric wheel is driven to rotate by the drive mechanism, so that the electric wheel and the friction plate form a dynamic rotational friction fit. At the same time, the extrusion distance and extrusion force between the electric wheel and the friction plate are adjusted to simulate the friction conditions of mechanical equipment under different loads. After the test is completed, the wear amount and wear marks of the friction plate are detected to intuitively determine the pressure resistance and wear resistance of the lubricating oil.

[0004] However, in actual experimental operations, the existing experimental device still has obvious technical defects. During the high-speed rotation and friction of the electric wheel, the lubricating oil applied to the surface of the electric wheel is easily thrown away and removed from the friction contact surface due to centrifugal force, and cannot be continuously adhered to the core friction area between the electric wheel and the friction plate. This results in the lubricating oil film on the friction contact surface being easily damaged and missing, which not only causes unstable friction conditions and uneven oil film thickness during the test, affecting the accuracy and repeatability of the test data, and failing to truly reflect the actual compressive strength of the lubricating oil; at the same time, in order to ensure the continuous operation of the test and to ensure that the friction area is always covered with lubricating oil, the test personnel need to frequently and intermittently replenish the lubricating oil throughout the test, which greatly increases the manual workload of the test operation, resulting in a cumbersome test procedure and low work efficiency.

[0005] In summary, existing lubricating oil pressure resistance testing devices have problems such as lubricating oil being easily separated by centrifugation and the need for frequent oil replenishment. There is an urgent need to design a new oil-based pressure resistance testing device for lubricating oil production. Summary of the Invention

[0006] A device for testing the oiliness and compressive strength of lubricating oil includes a test barrel, a retaining plate inside the test barrel, a friction plate in the middle of the retaining plate, an electric wheel on the side of the friction plate near the retaining plate, a lifting frame on the electric wheel, and a sliding connection between the lifting frame and the retaining plate. Symmetrically arranged pull ropes are fixedly connected to the top of the lifting frame. Multiple guide wheels are rotatably connected to the side of the test barrel near the pull ropes. The pull ropes pass through the test barrel, wrap around the guide wheels, and are connected to a lifting platform at their ends. The lifting platform and the test barrel are slidably connected. An oil pan is connected to the bottom of the lifting frame, and an oil inlet pipe is connected to the bottom of the oil pan. The oil inlet pipe extends into the test barrel and has an oil inlet. A plug is slidably connected to the side of the oil inlet pipe near the oil inlet, and a first spring connects the plug and the oil inlet pipe.

[0007] To further explain, it also includes guide rods, multiple guide rods connected inside the test barrel, a movable frame slidably connected between the guide rods, and multiple scraping parts slidably connected to the top of the movable frame.

[0008] Further explanation: It also includes an electric slide rail, which is located on the side of the test barrel away from the guide wheel. A push frame is slidably connected between the electric slide rails. The push frame and the moving frame are slidably connected. A second spring is connected between the push frame and the moving frame. An inclined rail plate is fixedly connected to the side of the push frame near the scraper. A column is fixed to the side of the scraper near the inclined rail plate. The column and the inclined rail plate are slidably connected.

[0009] To further explain, it also includes a first wedge block, which is connected to the movable frame. The push frame is slidably connected to the wedge frame, and the wedge frame and the first wedge block are in a pressing fit. A third spring connects the wedge frame and the push frame.

[0010] To further explain, it also includes a second wedge block, which is connected to the bottom of the wedge frame. An extrusion column is set inside the test barrel, and the extrusion column and the second wedge block are extruded together.

[0011] Further explanation: It also includes a piston cylinder, which is located at the bottom of the test barrel. A piston rod is slidably connected inside the piston cylinder. The piston rod and the pusher frame are in a pressing fit. A fourth spring is connected between the piston rod and the bottom of the piston cylinder. The top of the piston cylinder is connected to a one-way injection pipe, which is connected to an oil inlet pipe. A one-way water hole is opened at the top of the piston cylinder.

[0012] To further explain, it also includes a guide plate, which is connected inside the test barrel and is connected to a one-way water hole.

[0013] Further explanation: It also includes a rodless cylinder, which is fixedly connected to the top of the test barrel. A sliding component is slidably connected to the rodless cylinder, and a limiting component is connected to the sliding component. A mounting block is slidably connected to the limiting component, and the mounting block and friction plate are slidably connected.

[0014] To further explain, it also includes a fifth spring, which is connected between the limiting member and the mounting block. The test barrel is fixedly connected to symmetrically arranged baffles, and the baffles and the mounting block are in a pressing fit.

[0015] The beneficial effects of this invention are as follows: 1. This device is easy to operate, and the pressure can be precisely adjusted by relying on the counterweight, adapting to different test requirements. It can automatically complete the lubricating oil filling and flow interruption sealing, continuously supplying oil to the friction parts without the need for repeated manual oiling. The oil pan rises and falls synchronously with the structure, ensuring that the electric wheel is always immersed in the oil, simulating real working conditions. The test process is stable and can efficiently and accurately detect the pressure resistance and wear resistance of the lubricating oil.

[0016] 2. This device can automatically clean the lubricating oil splashed on the inner wall of the test barrel. Through the linkage of multiple sets of springs and wedge structure, the scraping parts first avoid, then scrape the oil against the wall, and finally reset. It can collect the oil stains on the wall to the bottom of the barrel, reduce the loss of lubricating oil, and realize the recycling of oil.

[0017] 3. The scraped-off lubricating oil is collected by the guide plate, and with the help of the piston rod, piston cylinder and one-way hole to form a pumping structure, the recovered oil can be automatically transported to the oil pan for recycling.

[0018] 4. This device relies on the linkage of rodless cylinder, spring and limit structure to automatically release the clamping restriction on the friction plate, and the disassembly and assembly operation is simple and convenient. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is a partial three-dimensional structural cross-sectional view of the present invention.

[0021] Figure 3 This is a three-dimensional structural diagram of the piston cylinder, piston rod, and fourth spring of the present invention.

[0022] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle.

[0023] Figure 5 For the present invention Figure 3 Enlarged view of section B in the middle.

[0024] Figure 6 This is a three-dimensional structural diagram of the components of the present invention, including the second spring, the first wedge block, and the wedge frame.

[0025] Figure 7 This is a three-dimensional structural diagram of the fourth spring, unidirectional injection tube, and backflow plate of the present invention.

[0026] Figure 8This is a three-dimensional structural diagram of the limiting member, the fifth spring, and the stop plate of the present invention.

[0027] In the attached diagrams: 1_Test barrel, 2_Abutting plate, 3_Friction plate, 4_Electric wheel, 5_Lifting frame, 6_Pull rope, 7_Guide wheel, 8_Lifting platform, 9_Oil pan, 10_Oil inlet pipe, 11_Oil inlet, 12_Blocking component, 13_First spring, 14_Guide rod, 15_Moving frame, 16_Scraper, 17_Electric slide rail, 18_Push frame, 19_Inclined rail plate, 20_Column, 21_Second spring, 22_First wedge block, 23_Wedge frame, 24_Third spring, 25_Second wedge block, 26_Extrusion column, 27_Piston cylinder, 28_Piston rod, 29_Fourth spring, 30_One-way injection pipe, 31_One-way water hole, 32_Guide plate, 33_Rodless cylinder, 34_Sliding component, 35_Restricting component, 36_Fifth spring, 37_Abutting plate, 38_Mounting block. Detailed Implementation

[0028] The present invention will now be described in detail with reference to the accompanying drawings.

[0029] An apparatus for testing the oiliness and compressive strength of lubricating oil, such as Figures 1-4 As shown, the test chamber includes a test barrel 1, a test chamber 2, a test chamber 3, and a test chamber 4. The test barrel 1 has a support plate 2 at its upper part, a friction plate 3 in its middle, an electric wheel 4 below the friction plate 3, and a lifting frame 5 on the electric wheel 4. The lifting frame 5 is slidably connected to the support plate 2. Pull ropes 6 are fixedly connected to the top left and right sides of the lifting frame 5. Two guide wheels 7 are rotatably connected to the top left and right sides of the test barrel 1. The upper part of the pull ropes 6 extends out of the test barrel 1 and passes around the guide wheels 7. A lifting platform 8 is fixedly connected between the ends of the pull ropes 6. The lifting platform 8 and the test barrel 1 are slidably connected. An oil pan 9 is fixedly connected to the bottom of the lifting frame 5. The bottom of the oil pan 9 is connected to an oil inlet pipe 10. The front of the oil inlet pipe 10 extends towards the front of the test barrel 1. An oil inlet 11 is opened at the front of the oil inlet pipe 10. A plug 12 is slidably connected to the side of the oil inlet pipe 10 near the oil inlet 11. A first spring 13 is connected between the upper and lower sides of the front of the plug 12 and the oil inlet pipe 10.

[0030] When using the oil-based pressure resistance testing device produced by this lubricant, the friction plate 3 can be installed on the abutment plate 2 first. Then, according to the test requirements, the force required for the electric wheel 4 to press against the friction plate 3 can be adjusted. The required weight of the counterweight can be overlapped and locked at the top position of the lifting platform 8. Because gravity will pull the pull rope 6 downward, the pull rope 6 will drive the lifting frame 5 and the electric wheel 4 to move upward, so that the electric wheel 4 presses against the bottom of the friction plate 3. When the lifting frame 5 rises, it will also drive the oil pan 9 to rise. The oil pan 9 remains in a fixed position below the electric wheel 4. Moreover, the oil inlet pipe 10 can be connected to the external oil injection device, so that the oil squeezes the blockage part 12, which will move the blockage part 12 to the rear, making... When the oil inlet 11 is opened, the first spring 13 is compressed, allowing lubricating oil to be injected into the oil pan 9, filling it completely. This keeps the bottom of the electric wheel 4 immersed in the lubricating oil, eliminating the need for continuous lubrication. After lubrication, the process is stopped, and the first spring 13 causes the plug 12 to move forward and reset, re-blocking the oil inlet 11. This prevents lubricating oil from flowing out of the inlet 11. The electric wheel 4 is then turned on, continuously rubbing against the friction plate 3. After friction is complete, the electric wheel 4 is turned off, and the friction plate 3 is removed. The wear of the friction plate 3 is then tested using a machine to assess the lubricating oil's pressure resistance.

[0031] like Figure 3 and Figure 5 As shown, it also includes guide rods 14. The four guide rods 14 are fixedly connected to the front, back, left and right sides of the test barrel 1. The guide rods 14 are slidably connected to the movable frame 15. The top of the movable frame 15 is slidably connected to the front, back, left and right sides of the barrel 1. Scraping parts 16 are slidably connected to the top of the movable frame 15.

[0032] like Figure 3 and Figure 5 As shown, it also includes electric slide rails 17, which are all located on the left and right sides of the lower part of the test barrel 1. Pushing frames 18 are slidably connected between the electric slide rails 17. The middle of the pushing frame 18 is slidably connected to the moving frame 15. A second spring 21 is connected between the middle of the pushing frame 18 and the moving frame 15. Inclined rail plates 19 are fixedly connected to the four sides of the upper part of the pushing frame 18. Columns 20 are fixedly connected to the lower part of the scraper 16. Columns 20 and inclined rail plates 19 are slidably connected.

[0033] like Figure 6 As shown, it also includes a first wedge block 22, which is fixedly connected to both sides of the movable frame 15. A wedge frame 23 is slidably connected to the push frame 18. The wedge frame 23 and the first wedge block 22 are pressed together. A third spring 24 is connected between the left and right sides of the wedge frame 23 and the push frame 18.

[0034] like Figure 6As shown, it also includes a second wedge block 25, which is fixedly connected to the bottom of the wedge frame 23. An extrusion column 26 is provided inside the test barrel 1, and the extrusion column 26 and the second wedge block 25 are extruded together.

[0035] During the rotation of the electric wheel 4, lubricating oil is easily splashed onto the inner wall of the test barrel 1, which results in waste. Therefore, this embodiment adopts the following solution:

[0036] The pusher 18 is raised by the electric slide rail 17. The pusher 18 drives the moving frame 15 and the scraper 16 to move upward via the second spring 21. At this time, there is a gap between the upper part of the scraper 16 and the inner wall of the test barrel 1. Therefore, the scraper 16 will not scrape the lubricating oil upward when it moves upward. Moreover, when the pusher 18 moves upward, it will drive the wedge frame 23 to move upward. The wedge frame 23 drives the second wedge block 25 to move upward. After the second wedge block 25 moves upward and separates from the extrusion column 26, it is in a compressed state. The third spring 24 drives the wedge frame 23 to move backward and reset. When the scraper 16 moves upward to the bottom of the abutting plate 2 and is abutted by the bottom of the abutting plate 2, the scraper 16 and the moving frame 15 stop moving. At this time, the pushing frame 18 continues to move upward, the second spring 21 is compressed, the pushing frame 18 drives the inclined rail plate 19 to continue to move upward, the inclined rail plate 19 pushes the column 20 to move outward, the column 20 drives the scraper 16 to move outward, so that the scraper 16 and the inner wall of the test barrel 1 are in close contact, and at the same time the wedge... After the wedge 23 moves upward and contacts the inclined surface of the first wedge block 22, it will move forward, compressing the third spring 24. After the wedge 23 moves above the first wedge block 22, the third spring 24 will drive the wedge 23 to move backward and reset, thus restricting the first wedge block 22. Then, when the electric slide rail 17 controls the push frame 18 to descend, the push frame 18 will move the moving frame 15 and the scraper 16 due to the jamming of the wedge 23 and the first wedge block 22. As the oil descends, the scraper 16 remains in close contact with the inner wall, scraping the lubricating oil from the inner wall downwards to the bottom of the barrel for collection, facilitating subsequent recycling of the lubricating oil. When the second wedge block 25 contacts the extrusion column 26, the second wedge block 25 will drive the wedge frame 23 to move forward and release the first wedge block 22. At this time, under the action of the second spring 21, the moving frame 15 will move and reset. With the cooperation of the inclined rail plate 19 and the column 20, the scraper 16 moves inward and resets.

[0037] like Figure 3 and Figure 7As shown, it also includes a piston cylinder 27, which is located at the bottom front of the test barrel 1. A piston rod 28 is slidably connected inside the piston cylinder 27. The lower part of the piston rod 28 is pressed and engaged with the push frame 18. A fourth spring 29 is connected between the lower part of the piston rod 28 and the bottom of the piston cylinder 27. The top of the piston cylinder 27 is connected to a one-way injection pipe 30. The upper part of the one-way injection pipe 30 is connected to the oil inlet pipe 10. Under the action of the one-way injection pipe 30, lubricating oil can only be injected into the oil inlet pipe 10 from the piston cylinder 27 in one direction. A one-way water hole 31 is opened at the top of the piston cylinder 27.

[0038] like Figure 7 As shown, it also includes a guide plate 32, which is fixedly connected to the lower part of the test barrel 1. The front part of the guide plate 32 is connected to the one-way water hole 31. The guide plate 32 is set with the middle being higher and the surrounding area being lower, and the rear edge of the guide plate 32 is higher than the front edge.

[0039] The lubricating oil is scraped downwards onto the guide plate 32 and flows along the guide plate 32 to the one-way water hole 31. When the pusher 18 moves downwards, it squeezes the piston rod 28. The piston rod 28 descends and draws the lubricating oil above the guide plate 32 into the piston cylinder 27. The fourth spring 29 is stretched. When the pusher 18 moves upwards and separates from the piston rod 28, the piston rod 28 moves upwards to reset under the action of the fourth spring 29. The piston rod 28 then drains the lubricating oil inside the piston cylinder 27 from the one-way water injection pipe into the oil pan 9 for circulation.

[0040] like Figure 8 As shown, it also includes a rodless cylinder 33, which is fixedly connected to the top of the test barrel 1. A sliding member 34 is slidably connected to the rodless cylinder 33. A limiting member 35 is fixedly connected to the lower part of the sliding member 34. The limiting member 35 is used to block the friction plate 3. A mounting block 38 is slidably connected to the lower part of the limiting member 35. The mounting block 38 and the friction plate 3 are slidably connected.

[0041] like Figure 8 As shown, it also includes a fifth spring 36, which is connected between the limiting member 35 and the mounting block 38. The upper left and right sides of the test barrel 1 are fixedly connected to the baffle plate 37, and the baffle plate 37 and the mounting block 38 are pressed together.

[0042] When it is necessary to remove the friction plate 3, the sliding member 34 can be moved upward by the rodless cylinder 33. The sliding member 34 drives the limiting member 35, the mounting block 38 and the friction plate 3 to move upward. When the mounting block 38 contacts the bottom of the stop plate 37, the mounting block 38 stops moving upward. At this time, the sliding member 34 and the limiting member 35 continue to move upward, and the fifth spring 36 is compressed. At this time, the limiting member 35 moves away from both sides of the friction plate 3 and stops restricting the friction plate 3, making it convenient for people to remove the friction plate 3 and replace it with a new friction plate 3. Then, the sliding member 34 is lowered by the rodless cylinder 33. The sliding member 34 drives the limiting member 35 and the mounting block 38 to fall and reset. When the stop plate 37 and the mounting block 38 separate, the mounting block 38 moves and resets under the action of the fifth spring 36.

[0043] It should be understood that the above description is for illustrative purposes only and is not intended to limit the invention. Those skilled in the art will understand that variations of the invention are included within the scope of the claims herein.

Claims

1. A testing device for the oiliness and pressure resistance of lubricating oil, characterized in that: The test chamber includes a test barrel (1), a retaining plate (2) inside the test barrel (1), a friction plate (3) in the middle of the retaining plate (2), an electric wheel (4) on the side of the friction plate (3) near the retaining plate (2), a lifting frame (5) on the electric wheel (4), the lifting frame (5) being slidably connected to the retaining plate (2), and symmetrically arranged pull ropes (6) fixedly connected to the top of the lifting frame (5). Multiple guide wheels (7) are rotatably connected to the side of the test barrel (1) near the pull ropes (6), and the pull ropes (6) extend out of the test barrel (1). The lifting platform (8) is connected to the end of the pull rope (6) after passing the guide wheel (7). The lifting platform (8) and the test barrel (1) are slidably connected. The bottom of the lifting frame (5) is connected to the oil pan (9). The bottom of the oil pan (9) is connected to the oil inlet pipe (10). The oil inlet pipe (10) passes through the test barrel (1). The oil inlet pipe (10) has an oil inlet (11). The oil inlet pipe (10) is slidably connected to the plug (12) on the side near the oil inlet (11). The plug (12) and the oil inlet pipe (10) are connected to the first spring (13).

2. The oiliness resistance test apparatus for lubricating oil production according to claim 1, characterized in that: It also includes guide rods (14), multiple guide rods (14) are connected inside the test barrel (1), and a movable frame (15) is slidably connected between the guide rods (14). Multiple scraping parts (16) are slidably connected to the top of the movable frame (15).

3. The oiliness resistance test apparatus for lubricating oil production according to claim 2, characterized in that: It also includes an electric slide rail (17), which is located on the side of the test barrel (1) away from the guide wheel (7). A push frame (18) is slidably connected between the electric slide rails (17). The push frame (18) and the moving frame (15) are slidably connected. A second spring (21) is connected between the push frame (18) and the moving frame (15). An inclined rail plate (19) is fixedly connected to the side of the push frame (18) near the scraper (16). A column (20) is fixed to the side of the scraper (16) near the inclined rail plate (19). The column (20) and the inclined rail plate (19) are slidably connected.

4. The oiliness resistance test apparatus for lubricating oil production according to claim 3, characterized in that: It also includes a first wedge block (22), which is connected to the movable frame (15). The push frame (18) is slidably connected to the wedge frame (23). The wedge frame (23) and the first wedge block (22) are pressed together. A third spring (24) is connected between the wedge frame (23) and the push frame (18).

5. The oiliness resistance test apparatus for lubricating oil production according to claim 4, characterized in that: It also includes a second wedge block (25), which is connected to the bottom of the wedge frame (23). An extrusion column (26) is set inside the test barrel (1), and the extrusion column (26) and the second wedge block (25) are extruded together.

6. The oiliness resistance test apparatus for lubricating oil production according to claim 5, characterized in that: It also includes a piston cylinder (27), which is located at the bottom of the test barrel (1). A piston rod (28) is slidably connected inside the piston cylinder (27). The piston rod (28) and the push frame (18) are squeezed together. A fourth spring (29) is connected between the piston rod (28) and the bottom of the piston cylinder (27). The top of the piston cylinder (27) is connected to a one-way injection pipe (30). The one-way injection pipe (30) is connected to the oil inlet pipe (10). A one-way water hole (31) is opened on the top of the piston cylinder (27).

7. The oiliness resistance test apparatus for lubricating oil production according to claim 6, characterized in that: It also includes a guide plate (32), which is connected inside the test barrel (1) and is connected to a one-way water hole (31).

8. The oiliness resistance test apparatus for lubricating oil production according to claim 7, characterized in that: It also includes a rodless cylinder (33), which is fixedly connected to the top of the test barrel (1). A sliding component (34) is slidably connected to the rodless cylinder (33), and a limiting component (35) is connected to the sliding component (34). A mounting block (38) is slidably connected to the limiting component (35), and the mounting block (38) and the friction plate (3) are slidably connected.

9. The oiliness and pressure resistance testing apparatus for lubricating oil production according to claim 8, characterized in that: It also includes a fifth spring (36), which is connected between the limiting member (35) and the mounting block (38). The test barrel (1) is fixedly connected to the symmetrically arranged baffles (37), and the baffles (37) and the mounting block (38) are pressed together.

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