Lubrication testing device for lubricating oil production

Abstract

This invention belongs to the field of lubricating oil testing technology, and relates to a lubricity testing device for lubricating oil production. It includes a water bath, with a top plate fixedly connected to the top. The top plate has several evenly spaced mounting holes, each capable of being detachably fitted with a sealing cap. A thick tube slides vertically through the sealing cap, and its end is fixedly connected to a connecting reservoir. A cylindrical sleeve is installed inside the water bath, with a fitting hole at its sealed end. The thick tube and the connecting reservoir are slidably and sealingly positioned within the fitting hole. Several suction cups are evenly fixedly connected to the open end of the sleeve. A gas channel is provided on the side of the sleeve at each suction cup, with the end of each gas channel extending away from the suction cup to the end face of the sleeve near the fitting hole. The advantage is that by moving the connecting reservoir within the sleeve, the suction cups are pressed tightly against the inner bottom surface of the water bath, avoiding the influence of subsequent water flow fluctuations.

Description

Technical Field

[0001] This invention belongs to the field of lubricating oil testing technology, and relates to a lubricity testing device for lubricating oil production. Background Technology

[0002] As the core medium for the operation of mechanical equipment, the viscosity of lubricating oil directly determines the lubrication effect, energy consumption level, and equipment service life, making it a key parameter for lubricating oil performance evaluation and quality control. Lubricating oil viscosity is often measured using a capillary viscometer method, which calculates the viscosity value by measuring the time it takes for the lubricating oil to flow through a capillary under gravity.

[0003] Existing lubricating oil viscosity testing devices primarily measure the viscosity of lubricating oil by detecting the time it takes for the oil to flow within a viscometer using a laser probe. However, in actual testing, to measure the viscosity of lubricating oil at different temperatures, the viscometer needs to be placed in a water bath for heating. During heating, to ensure a uniform water temperature within the water bath, a stirring device is typically used to agitate the water. However, when the viscometer is inserted into the water bath, the lack of a positioning device at the bottom causes the viscometer to vibrate due to the agitation of the water, thus affecting the accuracy of the laser probe's detection.

[0004] To address the aforementioned problems, this invention proposes a lubricity testing device for lubricant production. Summary of the Invention

[0005] To address the problems existing in the background art, the present invention proposes a lubricity testing device for lubricant production.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: it includes a water bath cylinder, the top of which is fixedly connected to a top plate, and a number of mounting holes are evenly opened on the top plate. A sealing cover can be detachably installed in each mounting hole. A thick pipe slides vertically through the sealing cover, and the end of the thick pipe is fixedly connected to a connecting reservoir. The water bath tube is equipped with a sleeve inside. The sleeve is cylindrical and has a sleeve hole at its sealing end. The thick pipe is slidably and sealingly disposed in the sleeve hole, and the connecting reservoir is slidably and sealingly disposed in the sleeve. The sleeve has several suction cups evenly and fixedly connected to its open end. Each suction cup has a gas channel on its side, and the end of each gas channel away from the suction cup extends to the end face of the sleeve near the sleeve hole.

[0007] Furthermore, a motor is fixedly installed in the middle of the top surface of the top plate, and a rotating shaft is fixedly connected to the output end of the motor. The rotating shaft rotates vertically through the top plate and extends into the water bath. Several stirring rods are evenly fixedly connected to the outer surface of the rotating shaft extending into the water bath.

[0008] Furthermore, vertically mounted electric telescopic rods are fixedly installed on the bottom surface of the top plate between two adjacent mounting holes. Several electric telescopic rods are arranged in a circular array about the pivot axis, and a laser detector is fixedly installed at the bottom of the telescopic end of each electric telescopic rod.

[0009] Furthermore, each mounting hole on the top plate is provided with a threaded hole, and the sealing cover is provided with a round hole that matches the threaded hole. A bolt is threaded into the threaded hole and passes through the round hole.

[0010] Furthermore, a rubber layer is fixedly connected to the inner wall of the sleeve hole, and the rubber layer extends to the inner wall of the sleeve near the sleeve hole. The connecting reservoir and the thick pipe are both sealed and slidably fitted with the rubber layer, and air holes adapted to the gas channel are opened on the rubber layer located on the inner wall of the sleeve.

[0011] Furthermore, a U-shaped bend is fixedly connected to the side of the connecting reservoir away from the thick pipe, and a thin pipe is fixedly connected to the other end of the bend. Buffer balls and measuring balls are fixedly arranged at intervals on the thin pipe. A first ring measuring line is arranged on the thin pipe between the buffer balls and the measuring balls. A second ring measuring line is arranged on the thin pipe located at the end of the measuring ball and away from the first ring measuring line. A branch pipe is fixedly connected to the end of the thick pipe away from the connecting reservoir.

[0012] Furthermore, a clearance opening is provided on the end face of the sleeve opening, and the bent pipe is slidably disposed within the clearance opening.

[0013] Furthermore, a retainer is fixedly installed on the top of the sealing cover, one end of the thick tube is placed inside the retainer, and an insertion hole is opened on the sealing cover, with the thin tube slidably placed inside the insertion hole.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. This lubrication testing device for lubricating oil production is equipped with a sleeve. When the suction cup is moved to the bottom surface inside the water bath, the sealing cover moves inward into the mounting hole, causing the thicker tube to slide downward within the sleeve. This causes the connecting reservoir to slide downward within the sleeve, increasing the volume of the cavity at the top of the connecting reservoir and creating a negative pressure. This negative pressure causes the suction cup to deform, thus tightly adhering to the bottom of the water bath. After the sealing cover is fixed to the top plate with bolts, the connecting reservoir cannot move upward within the sleeve. This keeps the sleeve, suction cup, thicker tube, and connecting reservoir in a fixed state, preventing subsequent influence from water flow fluctuations and improving testing accuracy.

[0015] 2. When the sealing cap of the lubrication testing device for lubricating oil production is disassembled, the sealing cap moves the thick pipe upward, causing the connecting reservoir to move upward inside the sleeve. This causes the pressure in the cavity at the top of the connecting reservoir inside the sleeve to rise, releasing the negative pressure and allowing gas to enter the suction cup. This causes the suction cup to cancel its adsorption effect on the bottom of the water bath, making it easier to remove the entire sleeve from the water bath. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the sealing cap structure in this invention; Figure 4 This is a schematic diagram of the sleeve structure in this invention; Figure 5 This is a schematic diagram of the thin tube structure in this invention; Figure 6 This is a schematic diagram of the branch pipe structure in this invention; Figure 7 This is a schematic diagram of the clearance opening in this invention; Figure 8 This is a schematic diagram of the interconnected storage device in this invention; Figure 9 This is a schematic diagram of the gas channel structure in this invention.

[0017] In the diagram: 1. Water bath; 2. Top plate; 3. Heater; 4. Motor; 5. Stirring rod; 6. Insulation cover; 7. Sealing cover; 8. Fixing device; 9. Bolt; 10. Thick pipe; 11. Connecting reservoir; 12. Thin pipe; 13. Branch pipe; 14. Buffer ball; 15. Measuring ball; 16. First ring measuring line; 17. Second ring measuring line; 18. Sleeve; 19. Displacement port; 20. Sleeve hole; 21. Rubber layer; 22. Gas channel; 23. Suction cup; 24. Electric telescopic rod; 25. Laser detector; 26. Bend. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] like Figures 1-9As shown, the technical solution adopted by the present invention is as follows: a lubrication testing device for lubricating oil production, comprising a water bath 1, a top plate 2 fixedly connected to the top of the water bath 1, and the top plate 2 sealing the top of the water bath 1. A plurality of mounting holes are evenly provided on the top plate 2, and a sealing cap 7 can be detachably installed in each mounting hole.

[0020] Each mounting hole on the top plate 2 has a threaded hole, and the sealing cover 7 has a round hole that matches the threaded hole. A bolt 9 is threaded into the threaded hole and passes through the round hole. By engaging the bolt 9 with the threaded hole, the sealing cover 7 can be stably fixed in the mounting hole of the top plate 2, achieving a detachable sealing installation of the sealing cover 7.

[0021] Each mounting hole can also be sealed with an insulation cover 6, and the insulation cover 6 is fixedly equipped with a handle. If the mounting hole is not equipped with a sealing cover 7, the mounting hole can be directly blocked with the insulation cover 6 to seal the water bath cylinder 1.

[0022] A thick tube 10 slides vertically through the sealing cover 7, which facilitates the installation and removal of the thick tube 10.

[0023] A retainer 8 is fixedly installed on the top of the sealing cover 7, and one end of the thick pipe 10 is set inside the retainer 8. The retainer 8 is a clamp, which is a device used in the mechanical manufacturing process to fix the workpiece and make it occupy the correct position for construction or inspection. The clamp is an existing product, and its main function is to fix the thick pipe 10 on the sealing cover 7.

[0024] The water bath 1 has a sleeve 18 inside, which is cylindrical. The sleeve 18 has a fitting hole 20 at its sealing end. The thick tube 10 is slidably disposed in the fitting hole 20, which allows for the installation and removal of the thick tube 10.

[0025] The end of the thick pipe 10 is fixedly connected to a connecting reservoir 11, which is slidably and sealingly disposed within the sleeve 18. The connecting reservoir 11 is disc-shaped, allowing it to enter the sleeve 18 only from the open end of the sleeve 18.

[0026] A plurality of suction cups 23 are uniformly fixedly connected to the open end of the sleeve 18. A gas channel 22 is provided on the side of the sleeve 18 at each suction cup 23. The end of the gas channel 22 communicates with the inner cavity of the suction cup 23, and the end of each gas channel 22 away from the suction cup 23 extends to the end face of the sleeve 18 near the fitting hole 20. When the connecting reservoir 11 is located inside the sleeve 18, the cavity at the top of the connecting reservoir 11 inside the sleeve 18 communicates with the gas channel 22 and the suction cups 23.

[0027] The suction cup 23 is made of elastic rubber, which can deform under negative pressure and adhere tightly to the inner bottom surface of the water bath tube 1 to fix the sleeve 18.

[0028] A rubber layer 21 is fixedly connected to the inner wall of the sleeve hole 20, extending to the inner wall of the sleeve 18 near the end of the sleeve hole 20. Both the connecting reservoir 11 and the thick pipe 10 are in a sealing sliding fit with the rubber layer 21. The rubber layer 21 on the inner wall of the sleeve 18 has vents adapted to the gas channel 22. The rubber layer 21 provides a sliding seal, creating a variable sealing cavity between the top of the connecting reservoir 11 and the inner top surface of the sleeve 18, providing a structural basis for negative pressure adsorption.

[0029] A U-shaped bend 26 is fixedly connected to the side of the connecting reservoir 11 away from the coarse tube 10, and a thin tube 12 is fixedly connected to the other end of the bend 26. Buffer balls 14 and measuring balls 15 are fixedly arranged at intervals on the thin tube 12. A first ring measuring line 16 is provided on the thin tube 12 between the buffer balls 14 and the measuring balls 15, and a second ring measuring line 17 is provided on the thin tube 12 located at the end of the measuring balls 15 and away from the first ring measuring line 16. A branch tube 13 is fixedly connected to the end of the coarse tube 10 away from the connecting reservoir 11. The coarse tube 10, connecting reservoir 11, bend 26, thin tube 12, buffer balls 14, and measuring balls 15 together constitute an integrated viscometer, which is an existing product. The branch tube 13 is used to connect an external air bladder to achieve the suction and filling of lubricating oil.

[0030] The sealing cap 7 has an insertion hole, and the thin tube 12 is slidably disposed in the insertion hole. The insertion hole serves to limit and guide the thin tube 12, and to position the entire viscometer.

[0031] A clearance opening 19 is provided on the end face of the open end of the sleeve 18, and the bent tube 26 is slidably disposed within the clearance opening 19. The clearance opening 19 is used to avoid the U-shaped bent tube 26, so that the sleeve 18 can be smoothly fitted onto the outside of the viscometer and slide up and down. At the same time, through the cooperation between the bent tube 26 and the clearance opening 19, the connecting reservoir 11 can only slide along the clearance opening 19 within the sleeve 18.

[0032] A motor 4 is fixedly installed in the middle of the top surface of the top plate 2. A rotating shaft is fixedly connected to the output end of the motor 4. The rotating shaft rotates vertically, passes through the top plate 2, and extends into the water bath 1. Several stirring rods 5 are evenly fixedly connected to the outer surface of the rotating shaft that extends into the water bath 1. The motor 4 drives the stirring rods 5 to rotate, so as to evenly stir the water in the water bath 1, ensure that the water temperature is consistent, and improve the accuracy of temperature detection.

[0033] Vertically mounted electric telescopic rods 24 are fixedly installed on the bottom surface of the top plate 2 between two adjacent mounting holes. Several electric telescopic rods 24 are arranged in a circumferential array about the rotation axis. A laser detector 25 is fixedly installed at the bottom of the telescopic end of each electric telescopic rod 24. The number of laser detectors 25 is equal to the number of mounting holes and corresponds one-to-one, so that there is a laser detector 25 at each mounting hole, ensuring that the viscometer installed in the mounting hole can be detected.

[0034] The laser detector 25 is used to detect the lubricating oil level and record the flow time. The electric telescopic rod 24 is waterproof and can also be directly fixed to the top of the top plate 2, so that the telescopic end of the electric telescopic rod 24 extends into the water bath 1. The electric telescopic rod 24 can drive the laser detector 25 to move up and down, so that the laser detector 25 is aligned with the second ring measuring line 17, thereby detecting the lubricating oil level and recording the flow time.

[0035] To increase the stability of the laser detector 25, a limiting plate can be fixedly connected to each laser detector 25 inside the water bath 1. The horizontal cross-section of the limiting plate is C-shaped, allowing one side of the laser detector 25 to slide vertically up and down within the limiting plate. This limits the laser detector 25, preventing it from vibrating due to water flow fluctuations and affecting the accuracy of the detection.

[0036] Multiple heaters 3 are evenly fixedly installed on the bottom surface of the top plate 2. The heaters 3 are located inside the water bath 1 and are used to heat the water in the water bath 1 to simulate different detection temperature environments.

[0037] A temperature sensor is installed inside the water bath 1 to monitor the water temperature in real time. A controller and timer are installed on the top of the top plate 2. The heater 3, motor 4, electric telescopic rod 24, and timer are all electrically connected to the controller.

[0038] Working principle: In use, first invert the viscometer so that the openings of the thin tube 12 and the thick tube 10 are facing downwards. Seal the end of the thick tube 10 with your index finger. Connect the balloon tube to the branch tube 13. Squeeze the balloon to immerse the thin tube 12 into the lubricating oil to be tested. Release the balloon to draw the lubricating oil into the viscometer. After sampling, straighten the viscometer, remove the balloon, and wipe the outer wall of the thin tube 12 clean. This method of introducing lubricating oil into the viscometer is a publicly available technique.

[0039] Insert the sleeve 18 along the thick pipe 10, so that the connecting reservoir 11 enters the sleeve 18, and the bent pipe 26 enters the relief port 19. Move the thick pipe 10 upward so that the connecting reservoir 11 and the rubber layer 21 form a sliding seal, and the thick pipe 10 also forms a sliding seal with the rubber layer 21, until the connecting reservoir 11 is located at the top of the sleeve 18.

[0040] Since the cavity between the top of the connecting reservoir 11 and the top of the inner sleeve 18 is sealed, when the connecting reservoir 11 slides upward inside the sleeve 18, the gas at the top of the connecting reservoir 11 will enter the gas channel 22 and then be discharged from the suction cup 23.

[0041] The upper end of the coarse tube 10 is passed through the sealing cap 7 and into the retainer 8, and the thin tube 12 is also passed through the sealing cap 7. The retainer 8 is operated to fix the coarse tube 10, thereby fixing the coarse tube 10 to the sealing cap 7, so that the viscometer and the sealing cap 7 form a whole.

[0042] Remove the insulation cover 6 from one of the mounting holes, move the sealing cover 7 into the mounting hole, and the viscometer and sleeve 18 enter the water bath 1.

[0043] When the bottom end of the suction cup 23 moves to the bottom surface inside the water bath 1, there is still a gap between the sealing cover 7 and the mounting hole. Continuing to press the sealing cover 7 downwards, the suction cup 23 and sleeve 18 no longer move, the connecting reservoir 11 slides downwards inside the sleeve 18, and the thick tube 10 slides downwards inside the mounting hole 20.

[0044] Since the bottom of the suction cup 23 is blocked by the bottom surface inside the water bath 1, the cavity formed by the top of the connecting reservoir 11, the rubber layer 21, the gas channel 22, the suction cup 23, and the bottom of the water bath 1 is a sealed cavity at this time. When the connecting reservoir 11 moves downward, it will draw gas from the suction cup 23 through the gas channel 22, so that the suction cup 23 is tightly adsorbed to the bottom surface inside the water bath 1 under negative pressure, and the sleeve 18 is automatically fixed.

[0045] Move the sealing cap 7 into the mounting hole and secure it with bolts 9.

[0046] Water is added to the water bath 1, and the heater 3 and motor 4 are started, so that the heater 3 heats the water. The motor 4 drives the stirring rod 5 to rotate, stirring the water and making the water temperature in the water bath 1 uniform. The laser detector 25 is adjusted to align with the second ring measuring line 17 by the electric telescopic rod 24.

[0047] Next, the balloon is flattened and connected to the capillary tube 12. Then, the balloon is released, and the suction effect of the balloon causes the lubricating oil in the viscometer to move upward along the capillary tube 12. When the lubricating oil exceeds the position of the first ring measuring line 16, the balloon is removed from the capillary tube 12, and the lubricating oil will then flow downward along the capillary tube 12.

[0048] When the liquid level is flush with the first ring measuring line 16, the operator starts the timer. When the laser detector 25 detects that the liquid level has dropped to the position of the second ring measuring line 17, the laser detector 25 transmits a signal to the controller, which then turns off the timer. The operator then uses the time recorded on the timer to perform viscosity analysis, thereby achieving the purpose of lubrication detection.

[0049] After the test is completed, unscrew bolt 9 to remove the fixing relationship between the sealing cover 7 and the top plate 2. Move the sealing cover 7 and the viscometer upward. Since the sleeve 18 is fixed to the bottom of the water bath 1 by the suction cup 23, the viscometer will move upward relative to the sleeve 18.

[0050] That is, the connecting reservoir 11 will move upward along the sleeve 18, making the volume of the sealed cavity formed by the top of the connecting reservoir 11, the rubber layer 21, the gas channel 22, the suction cup 23, and the bottom of the water bath 1 smaller. The gas will then enter the suction cup 23 through the gas channel 22, thereby canceling the adsorption effect of the multiple suction cups 23 on the bottom of the water bath 1.

[0051] Then, the sealing cap 7, viscometer, and sleeve 18 are removed from the water bath 1. The viscometer is then removed from the sleeve 18 and cleaned in preparation for the next test.

[0052] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A lubricity testing device for lubricating oil production, characterized in that, The water bath tube (1) is fixedly connected to the top plate (2). Several mounting holes are evenly opened on the top plate (2). A sealing cover (7) can be detachably installed in each mounting hole. A thick pipe (10) slides vertically through the sealing cover (7). The end of the thick pipe (10) is fixedly connected to a connecting reservoir (11). The water bath tube (1) is provided with a sleeve (18) inside. The sleeve (18) is cylindrical. The sealing end of the sleeve (18) is provided with a sleeve hole (20). The thick tube (10) is sealed and slidably disposed in the sleeve hole (20). The connecting reservoir (11) is sealed and slidably disposed in the sleeve (18). The sleeve (18) has several suction cups (23) evenly fixedly connected to its open end. Gas channels (22) are opened on the side of the sleeve (18) at each suction cup (23). The end of each gas channel (22) away from the suction cup (23) extends to the end face of the sleeve (18) near the sleeve hole (20).

2. The lubricity testing device for lubricating oil production according to claim 1, characterized in that: A motor (4) is fixedly installed in the middle of the top surface of the top plate (2). A rotating shaft is fixedly connected to the output end of the motor (4). The rotating shaft rotates vertically through the top plate (2) and extends into the water bath (1). Several stirring rods (5) are evenly fixedly connected to the outer surface of the rotating shaft that extends into the water bath (1).

3. The lubricity testing device for lubricating oil production according to claim 2, characterized in that: The bottom surface of the top plate (2) is fixedly installed with vertical electric telescopic rods (24) between two adjacent mounting holes. Several electric telescopic rods (24) are arranged in a circular array about the rotation axis. A laser detector (25) is fixedly installed at the bottom of the telescopic end of each electric telescopic rod (24).

4. The lubricity testing device for lubricating oil production according to claim 1, characterized in that: The top plate (2) has threaded holes at each mounting hole, and the sealing cover (7) has a round hole that matches the threaded hole. A bolt (9) is threaded into the threaded hole and passes through the round hole.

5. The lubricity testing device for lubricating oil production according to claim 1, characterized in that: A rubber layer (21) is fixedly connected to the inner wall of the sleeve hole (20). The rubber layer (21) extends to the inner wall of the sleeve (18) near the sleeve hole (20). The connecting reservoir (11) and the thick pipe (10) are both sealed and slidably fitted with the rubber layer (21). A gas hole adapted to the gas channel (22) is opened on the rubber layer (21) located on the inner wall of the sleeve (18).

6. The lubricity testing device for lubricating oil production according to claim 1, characterized in that: The connecting reservoir (11) is fixedly connected to a U-shaped bend (26) on the side away from the thick pipe (10), and a thin pipe (12) is fixedly connected to the other end of the bend (26). A buffer ball (14) and a measuring ball (15) are fixedly arranged at intervals on the thin pipe (12). A first ring measuring line (16) is arranged on the thin pipe (12) between the buffer ball (14) and the measuring ball (15). A second ring measuring line (17) is arranged on the thin pipe (12) located at the end of the measuring ball (15) and away from the first ring measuring line (16). A branch pipe (13) is fixedly connected to the end of the thick pipe (10) away from the connecting reservoir (11).

7. The lubricity testing device for lubricating oil production according to claim 6, characterized in that: The sleeve (18) has a relief opening (19) on its open end face, and the bent pipe (26) is slidably disposed in the relief opening (19).

8. The lubricity testing device for lubricating oil production according to claim 6, characterized in that: A retainer (8) is fixedly installed on the top of the sealing cover (7), and one end of the thick tube (10) is set inside the retainer (8). An insertion hole is opened on the sealing cover (7), and the thin tube (12) is slidably set inside the insertion hole.

Images