Test device used for discharging lubricating grease and capable of preventing bubbles from entering

Abstract

The utility model discloses a test device for preventing bubbles from entering during lubricating grease discharging, which relates to the technical field of ointment test devices and comprises a box body, a servo motor is fixedly connected to the side wall of the box body, a rotating column is fixedly connected to the output end of the servo motor, and two first bevel gears are fixedly connected to the side wall, located in the box body, of the rotating column. The side walls of the first bevel gears are in meshed connection with second bevel gears, one ends of the second bevel gears are fixedly connected with rotating shafts, the side walls of the rotating shafts are fixedly connected with friction wheels, the inner top wall of the box body is fixedly connected with two electric push rods, and the output ends of the electric push rods are fixedly connected with pressing plates. The pressure borne by each group of test blocks is controlled through the electric push rod and the pressure tester, the influence of different friction contact areas on the extreme pressure wear resistance of the lubricating grease can be tested, meanwhile, the influence of different pressures on the extreme pressure wear resistance of the lubricating grease can be tested, and the test range is wider.

Description

Technical Field

[0001] The utility model relates to the technical field of grease testing devices, in particular to a testing device for preventing air bubbles from entering when discharging lubricating grease. Background Art

[0002] Grease is a thick, oily semi-solid substance used in the friction parts of machinery to lubricate and seal. It is also used on metal surfaces to fill gaps and prevent rust. It is mainly made of mineral oil (or synthetic lubricant) and thickener. Grease is used as a lubricating material in many parts of automobiles and construction machinery, which is what we often call butter.

[0003] Chinese patent document CN216013037U discloses a grease extreme pressure and anti-wear test device. The key technical solution includes a test bench, on which are mounted a first friction wheel, a second friction wheel, a first test block, and a second test block. The first friction wheel rubs against the first test block, and the second friction wheel rubs against the second test block. The first and second friction wheels have different inner diameters. Belts are sleeved around the first and second friction wheels. The first friction wheel is connected to a first motor via a belt, and the second friction wheel is connected to a second motor via a belt. The aforementioned grease extreme pressure and anti-wear test device has drawbacks. Although the device can test anti-wear properties, it has limitations. It cannot test the anti-wear properties of the test block when subjected to different pressures, and can only perform a single set of tests at a time. When multiple sets of test data are required, the above operations need to be repeated for multiple tests, resulting in low experimental efficiency.

[0004] Therefore, in order to solve this problem, we proposed a test device for grease discharge to prevent air bubbles from entering. Utility Model Content

[0005] The purpose of the utility model is to provide a test device for preventing air bubbles from entering when discharging grease, aiming to solve the problem in the above-mentioned background technology that the existing grease extreme pressure and anti-wear test device cannot test the anti-wear properties of the test block when it is subjected to different pressures when in use, and can only perform a single group of tests each time, resulting in low experimental efficiency.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a test device for preventing air bubbles from entering the grease discharge, comprising a box body, characterized in that: the side wall of the box body is fixedly connected to a servo motor, the output end of the servo motor is fixedly connected to a rotating column, the end of the rotating column away from the servo motor passes through the side wall of the box body, the side wall of the rotating column located inside the box body is fixedly connected to two first bevel gears, the side walls of the first bevel gears are meshedly connected to the second bevel gear, the end of the second bevel gear away from the first bevel gear is fixedly connected to the rotating shaft, the side wall of the rotating shaft is rotatably connected to the first support plate, and the end of the first support plate away from the rotating shaft is connected to the bottom wall of the box body. The gear train is fixedly connected to the first supporting plate, and one end of the rotating shaft is rotatably connected to the second support plate. One end of the second support plate is away from the rotating shaft and is fixedly connected to the bottom wall of the box body. The side wall of the rotating shaft is fixedly connected to the friction wheel. The friction wheel is located between the first support plate and the second support plate. The upper end of the second support plate is fixedly connected to the mounting plate, and one end of the mounting plate is away from the second support plate and is fixedly connected to the inner wall of the box body. Two electric push rods are fixedly connected to the top wall of the box body, and the output ends of the electric push rods are fixedly connected to pressure plates. The lower end of the pressure plate is fixedly connected to three pressure monitors. Six test blocks are movably connected to the upper end of the mounting plate, and the test blocks are respectively located directly below the pressure monitors.

[0007] Preferably, fixed plates are fixedly connected to both sides of the top of the bottom plate of the box body, an electric conveyor belt is movably arranged between the side walls of the fixed plates, and the electric conveyor belt is located between the first support plate and the second support plate, a storage box is fixedly connected to the top wall of the box body, a discharge pipe is sealed and fixedly connected to the lower end of the storage box, and a conical material pipe is sealed and fixedly connected to the end of the discharge pipe away from the storage box, and the diameter of the conical bottom surface of the conical material pipe is twice the diameter of the discharge pipe.

[0008] Preferably, the upper end of the box is fixedly connected to a fan, the output end of the fan is sealed and fixedly connected to a heating element, the heating element is fixedly connected to the upper end of the box, and the side walls not adjacent to the heating element are sealed and fixedly connected to connecting pipes, and the end of the connecting pipe away from the heating element passes through the top wall of the box.

[0009] Preferably, a temperature monitor is fixedly connected to the lower end of the mounting plate.

[0010] Preferably, the upper ends of the pressing plates are fixedly connected to two telescopic rods, the electric push rod is located between the telescopic rods, and one end of the telescopic rod away from the pressing plates is fixedly connected to the top wall of the box.

[0011] Preferably, the servo motor, electric push rod and pressure monitor are all electrically connected to an external controller.

[0012] The utility model has the following beneficial effects:

[0013] In the utility model, the pressure on each group of test blocks is controlled by an electric push rod and a pressure tester, and then the wear resistance of the test blocks is tested using two friction wheels of different sizes. The influence of different friction contact areas on the extreme pressure wear resistance of the grease can be tested, and the influence of different pressures on the extreme pressure wear resistance of the grease can be tested at the same time, which makes the test range wider and increases practicality. Secondly, the two connecting pipes are set to make the temperature distribution in the box more uniform, thereby increasing the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional diagram of a test device for preventing air bubbles from entering into grease discharge proposed by the utility model Figure 1 ;

[0015] Figure 2 A three-dimensional diagram of a test device for preventing air bubbles from entering into grease discharge proposed by the utility model Figure 2 ;

[0016] Figure 3 A three-dimensional diagram of a test device for preventing air bubbles from entering into grease discharge proposed by the utility model Figure 3 ;

[0017] Figure 4 This is a three-dimensional exploded schematic diagram of the internal structure of a test device for preventing air bubbles from entering into grease discharge proposed by the utility model.

[0018] Legend:

[0019] 1. Box body; 11. Electric conveyor belt; 12. First support plate; 13. Second support plate; 14. Mounting plate; 15. Storage box; 16. Discharge pipe; 17. Conical material pipe; 18. Temperature monitor; 2. Servo motor; 21. Rotating column; 22. First bevel gear; 23. Second bevel gear; 24. Rotating shaft; 25. Friction wheel; 26. Electric push rod; 261. Telescopic rod; 27. Press plate; 28. Pressure monitor; 29. Test block; 3. Fan; 31. Heating element; 32. Connecting pipe. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "center," "up," "down," "left," "right," "vertical," "horizontal," "inside," "outside," etc., indicating positions or positional relationships, are based on the positions or positional relationships shown in the accompanying drawings and are used only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific position, be constructed and operate in a specific position. Therefore, they should not be understood as limiting the present invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrally connected. They can be mechanically connected or electrically connected. They can be directly connected, indirectly connected through an intermediate medium, or can be internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0022] Reference Figure 1-4 The utility model provides an embodiment of a grease discharging device for preventing bubbles from entering, comprising a box body 1, a servo motor 2 fixedly connected to the side wall of the box body 1, and a rotating column 21 fixedly connected to the output end of the servo motor 2. The end of the rotating column 21 away from the servo motor 2 passes through the side wall of the box body 1, and the rotating column 21 is located on the side wall inside the box body 1 and is fixedly connected to two first bevel gears 22. The side walls of the first bevel gear 22 are meshed with the second bevel gear 23, and the end of the second bevel gear 23 away from the first bevel gear 22 is fixedly connected to the rotating shaft 24. The side wall of the rotating shaft 24 is rotatably connected to the first support plate 12, and the end of the rotating shaft 24 away from the rotating shaft 24 is fixedly connected to the inner bottom wall of the box body 1, and the end of the first support plate 12 away from the second bevel gear 23 is rotatably connected to the second support plate 13. The end of the second support plate 13 away from the rotating shaft 24 is fixedly connected to the inner bottom wall of the box body 1. A friction wheel 25 is fixedly connected to the side wall of the moving shaft 24, and the two friction wheels 25 have different diameters. The friction wheel 25 is located between the first support plate 12 and the second support plate 13. The upper end of the second support plate 13 is fixedly connected to the mounting plate 14. The end of the mounting plate 14 away from the second support plate 13 is fixedly connected to the inner wall of the box body 1. Two electric push rods 26 are fixedly connected to the top wall of the box body 1. The output ends of the electric push rods 26 are fixedly connected to a pressure plate 27. The lower end of the pressure plate 27 is fixedly connected to three pressure monitors 28. Six test blocks 29 are movably connected to the upper end of the mounting plate 14, wherein six test slots are opened at the upper end of the mounting plate 14, and the test blocks 29 are respectively located in the test slots. Springs are connected between the test blocks 29 and the test slots, and the test blocks 29 are respectively located directly below the pressure monitors 28. The test blocks 29 are located directly above the friction wheels 25, and the lower surfaces of the test blocks 29 are in contact with the friction wheels 25.

[0023] This setting places the test blocks 29 in the test slots opened in the mounting plate 14 respectively, and then starts the electric push rod 26, so that the electric push rod 26 drives the pressure plate 27 to move vertically downward, so that the pressure plate 27 drives the pressure monitor 28 to squeeze the test block 29. When the pressure monitor 28 displays the required pressure, the electric push rod 26 is closed, and then the servo motor 2 is started to rotate, so that the servo motor 2 drives the rotating column 21 to rotate, so that the rotating column 21 drives the two first bevel gears 22 to rotate, so that the two first bevel gears 22 respectively drive the second bevel gears 23 to rotate, so that the second bevel gear 23 drives the rotating shaft 24 to rotate, so that the rotating shaft 24 drives the friction wheel 25 to rotate, and then the friction wheel 25 is used to rub the test block 29.

[0024] The top ends of the storage boxes 1 are fixedly connected to fixed plates on both sides of the bottom plate of the box body 1, and an electric conveyor belt 11 is movably provided between the side walls of the fixed plates, and the electric conveyor belt 11 is located between the first support plate 12 and the second support plate 13. A storage box 15 is fixedly connected to the top wall of the box body 1, and a discharge pipe 16 is sealed and fixedly connected to the lower end of the storage box 15. An end of the discharge pipe 16 away from the storage box 15 is sealed and fixedly connected to a conical material pipe 17. The diameter of the conical bottom surface of the conical material pipe 17 is twice the diameter of the discharge pipe 16. Grease is dripped onto the surface of the electric conveyor belt 11 through the discharge pipe 16 and the conical material pipe 17. When the conical material pipe 17 discharges material, the dispersion and decompression effect of the cone is used to reduce the entry of bubbles into the grease, and the grease is prevented from directly hitting the surface of the electric conveyor belt 11 and causing the entry of bubbles. The grease is then transferred to the surface of the friction wheel 25. When the conical material pipe 17 discharges material, the dispersion and decompression effect of the cone is used to reduce the entry of bubbles into the grease.

[0025] A fan 3 is fixedly connected to the upper end of the box body 1, and a heating element 31 is sealed and fixedly connected to the output end of the fan 3. The heating element 31 is fixedly connected to the upper end of the box body 1, and the side walls not adjacent to the heating element 31 are sealed and fixedly connected with a connecting pipe 32. The end of the connecting pipe 32 away from the heating element 31 passes through the top wall of the box body 1, and hot air is input into the box body 1 through the heating element 31 and the fan 3, thereby adjusting the temperature inside the box body 1. The setting of the two connecting pipes 32 makes the temperature distribution inside the box body 1 more uniform.

[0026] A temperature monitor 18 is fixedly connected to the lower end of the mounting plate 14 for detecting the temperature inside the box 1 to prevent the internal temperature of the box 1 from being too high.

[0027] Two telescopic rods 261 are fixedly connected to the upper end of the pressure plate 27, and the electric push rod 26 is located between the telescopic rods 261. The end of the telescopic rod 261 away from the pressure plate 27 is fixedly connected to the top wall of the box body 1, which is used to limit the pressure plate 27 and increase the stability of the vertical movement of the pressure plate 27.

[0028] The servo motor 2 , the electric push rod 26 and the pressure monitor 28 are all electrically connected to an external controller, which is used to output an electrical signal to control the servo motor 2 and the electric push rod 26 based on the pressure value transmitted by the pressure monitor 28 .

[0029] Working principle: First, the grease is dripped onto the surface of the electric conveyor belt 11 through the discharge pipe 16 and the tapered material pipe 17. When the tapered material pipe 17 discharges the material, the dispersion and decompression effect of the cone is used to reduce the entry of bubbles into the grease, and the grease is prevented from directly hitting the surface of the electric conveyor belt 11 to cause the entry of bubbles. The grease is then transferred to the surface of the friction wheel 25. When the tapered material pipe 17 discharges the material, the dispersion and decompression effect of the cone is used to reduce the entry of bubbles into the grease. The test blocks 29 are respectively placed in the test slots opened in the mounting plate 14, and then the electric push rod 26 is started. The electric push rod 26 drives the pressure plate 27 to move vertically downward, and the pressure plate 27 drives the pressure monitor 28 to squeeze the test block 2 9. The test block 9 squeezes the spring and slides in the test slot, making contact with the friction wheel 25. When the pressure monitor 28 displays the required pressure, the electric push rod 26 is closed, and then the servo motor 2 is started to rotate. The servo motor 2 drives the rotating column 21 to rotate, and the rotating column 21 drives the two first bevel gears 22 to rotate. The two first bevel gears 22 respectively drive the second bevel gears 23 to rotate, and the second bevel gear 23 drives the rotating shaft 24 to rotate. The rotating shaft 24 drives the friction wheel 25 to rotate, so that the two friction wheels 25 of different sizes rub against the test block 29, to test the effect of different friction contact areas on the extreme pressure wear resistance of the grease, or to test the effect of different pressures on the extreme pressure wear resistance of the grease.

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

Claims

1. A test device for preventing air bubbles from entering into grease discharge, comprising a box (1), characterized in that: The side wall of the box (1) is fixedly connected to a servo motor (2), and the output end of the servo motor (2) is fixedly connected to a rotating column (21). One end of the rotating column (21) away from the servo motor (2) passes through the side wall of the box (1). The side wall of the rotating column (21) located inside the box (1) is fixedly connected to two first bevel gears (22). The side walls of the first bevel gears (22) are meshed and connected to the second bevel gears (23). One end of the second bevel gear (23) away from the first bevel gear (22) is fixedly connected to a rotating shaft (24). The side wall of the rotating shaft (24) is rotatably connected to the first support plate (12). One end of the first support plate (12) away from the rotating shaft (24) is fixedly connected to the inner bottom wall of the box (1), and one end of the rotating shaft (24) away from the second bevel gear (23) is rotatably connected to the second support plate (13). One end of the second support plate (13) away from the rotating shaft (24) is fixedly connected to the inner bottom wall of the box body (1), and a friction wheel (25) is fixedly connected to the side wall of the rotating shaft (24). The friction wheel (25) is located between the first support plate (12) and the second support plate (13). The upper end of the second support plate (13) is fixedly connected to the mounting plate (14). One end of the mounting plate (14) away from the second support plate (13) is fixedly connected to the inner side wall of the box body (1). Two electric push rods (26) are fixedly connected to the inner top wall of the box body (1). The output ends of the electric push rods (26) are fixedly connected to a pressure plate (27). The lower end of the pressure plate (27) is fixedly connected to three pressure monitors (28). The upper end of the mounting plate (14) is movably connected to six test blocks (29), and the test blocks (29) are respectively located directly below the pressure monitors (28).

2. A grease discharging device for preventing air bubbles from entering according to claim 1, characterized in that: The box body (1) is fixedly connected to fixed plates on both sides of the top of the bottom plate, and an electric conveyor belt (11) is movably provided between the side walls of the fixed plates, and the electric conveyor belt (11) is located between the first support plate (12) and the second support plate (13). The top wall of the box body (1) is fixedly connected to a storage box (15), and the lower end of the storage box (15) is sealed and fixedly connected to a discharge pipe (16). The end of the discharge pipe (16) away from the storage box (15) is sealed and fixedly connected to a conical material pipe (17), and the diameter of the conical bottom surface of the conical material pipe (17) is twice the diameter of the discharge pipe (16).

3. The grease discharging device for preventing air bubbles from entering according to claim 1, characterized in that: The upper end of the box body (1) is fixedly connected to a fan (3), the output end of the fan (3) is sealed and fixedly connected to a heating element (31), the heating element (31) is fixedly connected to the upper end of the box body (1), and the side walls not adjacent to the heating element (31) are sealed and fixedly connected to connecting pipes (32), and the end of the connecting pipe (32) away from the heating element (31) passes through the inner top wall of the box body (1).

4. The grease discharging device for preventing air bubbles from entering according to claim 1, characterized in that: A temperature monitor (18) is fixedly connected to the lower end of the mounting plate (14).

5. The grease discharging device for preventing air bubbles from entering according to claim 1, characterized in that: The upper ends of the pressing plates (27) are fixedly connected to two telescopic rods (261), the electric push rod (26) is located between the telescopic rods (261), and the ends of the telescopic rods (261) away from the pressing plates (27) are fixedly connected to the inner top wall of the box body (1).

6. The grease discharging device for preventing air bubbles from entering according to claim 1, characterized in that: The servo motor (2), the electric push rod (26) and the pressure monitor (28) are all electrically connected to an external controller.

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