Quantitative oil spreading and supplying experimental device

Abstract

The utility model discloses a quantitative oil spreading and supplying experimental device, which belongs to the technical field of experimental measurement of fluid lubricating oil films and comprises an experiment table, a displacement table, a glass plate and an injection pump are arranged on the experiment table, an injector is arranged on the injection pump, and an output end of the injector is connected with a hose. An oil outlet is formed in the other end of the hose and is aligned with the round end face of the bottom of the glass plate, and the hose connected between the injector and the glass plate is clamped by the displacement table and can move relative to the glass plate. According to the quantitative oil spreading and supplying experimental device provided by the utility model, under the condition of limited oil supply, trace sample oil can be uniformly spread on the ball disc contact track of the glass disc, so that the ball disc is smoother when running on the glass disc, the formed film is more stable and clearer, the disc scratching phenomenon is reduced, the uniformity of an oil film is ensured, and the quality of the oil film is improved. Therefore, the precise oil distribution effect is effectively achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the experimental measurement technical field of fluid lubricating oil film, and specifically relates to a quantitative oil spreading and supplying experimental device. BACKGROUND

[0002] The lubricating film is an important index for evaluating the lubricating performance of the lubricant, and it plays a significant role in reducing the friction and wear during the operation of the rolling bearing, so the film forming characteristic of the lubricating film is the focus of the current lubricating research. In addition, based on the energy saving and environmental protection requirements and the technical requirements of the mechanical system itself operation, how to realize effective lubrication under the condition of limited oil supply, that is, using a small amount of lubricating oil to achieve the purpose of effective and accurate lubrication has great significance.

[0003] At present, the common method for researching the film forming characteristic of the lubricating film is to obtain the film forming characteristic of the lubricant by using the ball-disc point contact measurement experiment, and the lubricating mechanism is revealed by changing the experimental conditions, however, in the research, it is found that in the existing ball-disc point contact measurement experiment, the oil spreading on the glass disc is often manually carried out under the lower surface of the glass disc, which may lead to uneven oil spreading on the glass disc and result in large error of the measured film thickness, that is, the film forming is unstable, and further, the accuracy and stability of the whole experiment or the film thickness measurement system experiment are affected, especially when the ball-disc contact track formed after the glass disc and the ball disc contact is not uniformly coated with lubricating oil during the experiment, the ball disc may scratch the disc during the rotation, resulting in wear of the glass disc and inaccurate experimental results.

[0004] Therefore, how to provide a novel quantitative oil spreading and supplying experimental device to enable the ball-disc contact track formed after the glass disc and the ball disc contact to be uniformly coated with lubricating oil is the key to the research on the film forming characteristic experiment of the lubricating oil under the condition of limited oil supply. Utility model content

[0005] In view of the problems existing in the prior art, the utility model provides a quantitative oil spreading and supplying experimental device, which can spread the trace amount of sample oil on the ball-disc contact track formed after the glass disc and the ball disc contact in a uniform manner under the condition of limited oil supply, ensure that the ball disc runs more smoothly, the film forming is more stable and clear, and the generation of the disc scratching phenomenon is reduced, the uniformity of the oil film is ensured, and the accurate oil spreading effect is effectively realized.

[0006] The technical scheme of the utility model is as follows:

[0007] The utility model discloses a first aspect provides a kind of quantitative oiling supply experimental device, including experiment table, the displacement table, glass dish and syringe pump are equipped on the experiment table, the syringe pump is equipped with syringe, the output end of the syringe is connected with hose, another end of the hose is equipped with oil outlet alignment glass dish bottom circular end face, the hose between syringe and glass dish is fixed using the fixed clamp on displacement table, and displacement table is installed on the lower surface of photoelastic flow test bench, can be moved relative to glass dish.

[0008] In some embodiments of the utility model, the glass dish bottom circular end face is parallelly arranged with the upper surface of the experiment table, and the glass dish is connected with a rotating shaft arranged at a certain height from the experiment table.

[0009] In some embodiments of the utility model, the oil outlet of the hose is arranged as an inclined surface, and the inclined surface is parallel to the glass dish bottom circular end face.

[0010] In some embodiments of the utility model, the position where the syringe pump is equipped with a syringe is provided with a first groove structure and a needle cylinder limiting plate, the needle cylinder limiting plate is provided with a second groove structure matched with the surface of the syringe, and the syringe is installed between the first groove structure and the second groove structure of the syringe pump through the needle cylinder limiting plate.

[0011] In some embodiments of the utility model, the output end of the syringe faces the glass dish, and the needle cylinder limiting plate is detachably connected with the pump body of the syringe pump.

[0012] In some embodiments of the utility model, the syringe pump is further provided with a syringe pump lead screw and a syringe pump sliding block, the syringe pump sliding block is connected with the tail end of the push rod of the syringe, and the syringe pump lead screw is arranged in parallel with the advancing direction of the syringe.

[0013] In some embodiments of the utility model, a syringe pump sliding block guide shaft is arranged on the syringe pump sliding block, and the syringe pump sliding block guide shaft and the syringe pump lead screw are arranged in parallel with each other.

[0014] In some embodiments of the utility model, the displacement table includes a displacement table base, and the displacement table base is connected with the experiment table; the displacement table base is provided with a displacement table lead screw and a displacement table sliding block, the displacement table sliding block is provided with a fixed clamp at a certain height from the displacement table sliding block through a support shaft, and one end of the displacement table lead screw penetrating out of the displacement table base is provided with a rotating handle.

[0015] In some embodiments of the utility model, a displacement table sliding block guide shaft is arranged on the displacement table sliding block, the displacement table sliding block guide shaft and the displacement table lead screw are arranged in parallel, and the axis of the displacement table lead screw and the upper surface of the experiment table are arranged in parallel with each other.

[0016] In some embodiments of the utility model, the fixed clamp is provided with a through hole for clamping the hose.

[0017] The one or more technical schemes of the utility model have the following beneficial effects:

[0018] The quantitative oil spreading and supplying experimental device provided by the utility model can spread trace sample oil on the ball disc contact track formed after the glass disc and the ball disc contact in a uniform manner under the condition of limited oil supply, ensures that the ball disc runs more smoothly when contacting the glass disc, and the film forming is more stable and clear, and meanwhile, the generation of the disc scratching phenomenon is reduced, in addition, the oil supply time of the injection pump is adjustable, compared with the disadvantage that manual oil spreading is not easy to supplement oil in the experimental process, the device is convenient for secondary oil supply of the glass disc, ensures the uniformity of the oil film, and thus effectively realizes the precise oil spreading effect.

[0019] The utility model discloses through the design injection pump's operation parameter value, makes the injection of injection pump's oil quantity and the oil quantity used to the experiment match, and the operation time and flow parameter of injection pump are designed, ensure that the sample oil in the syringe can spread the whole glass disc in the stipulated time, and simultaneously through the position of hose oil outlet, the oil of injection syringe can be accurately and evenly spread on the contact track of ball disc through the hose oil outlet.

[0020] The device provided by the utility model can realize the adjustment of oil spreading for different varieties of oil and different oil supply amounts, and the oil is evenly spread, meets the use under the condition of limited oil supply, and makes the experimental result more accurate and reliable.

[0021] In addition, the working condition of the experiment, i.e. the amount of oil per unit area, is determined through the experimental requirement, the size of the ball disc contact track radius is measured before starting oil spreading, the length of the oil spreading track radius is determined, the rotation speed of the glass disc is set according to the experiment, the operation parameter of the injection pump is determined, and the oil spreading effect is further ensured. ACCURATE

[0022] Figure 1 It is a whole structure diagram of the quantitative oil spreading and supplying experimental device provided by the utility model embodiment 1.

[0023] Figure 2 It is a steel ball and glass disc cooperation experiment schematic view provided by the utility model embodiment 1.

[0024] Figure 3 It is a whole structure schematic view of the displacement table provided by the utility model embodiment 1.

[0025] Figure 4The overall structure schematic diagram of the injection pump is provided in embodiment 1 of the utility model.

[0026] Figure 5 The oil film interference diagram obtained by the manual oil distribution in embodiment 1 of the utility model.

[0027] Figure 6 The oil film interference diagram obtained by the manual oil distribution in embodiment 1 of the utility model.

[0028] In the drawing: 1, experiment table; 2, glass tray; 3, displacement table; 4, injection pump; 5, displacement table base; 6, displacement table sliding block guide shaft; 7, displacement table screw; 8, displacement table sliding block; 9, support shaft; 10, fixed clamp; 11, rotating handle; 12, injection pump sliding block guide shaft; 13, injection pump screw; 14, injection pump sliding block; 15, syringe; 16, needle cylinder limiting plate; 17, injection pump display; 18, steel ball; 19, microscope; 20, computer. DETAILED DESCRIPTION

[0029] The utility model is further described in combination with the drawings and embodiments.

[0030] Embodiment 1

[0031] The utility model will be applied in point contact optical hydrodynamic test table, as shown in Figure 2 The contact point between the steel ball 18 and the plane glass tray 2 is the oil distribution track radius, and the contact between the steel ball 18 and the plane glass tray 2 can effectively simulate the contact between the real rolling body and the inner and outer rings of the bearing, the image collected by the microscope 19 and the double-color light interference technology is transmitted to the computer 20, and the oil film thickness corresponding to the image is obtained by DIIM technology processing, and then the lubrication mechanism of the rolling bearing is quantitatively analyzed.

[0032] In a typical embodiment of the utility model, a quantitative oil distribution supply experimental device is provided, which comprises an experiment table 1, a displacement table 3, a glass tray 2 and an injection pump 4 are arranged on the experiment table 1, the injection pump 4 is provided with a syringe 15, a hose is connected to the output end of the syringe 15, the other end of the hose is provided with an oil outlet aligned with the bottom circular end face of the glass tray 2, and the hose connected between the syringe 15 and the glass tray 2 can move relative to the glass tray 2 by being clamped by the displacement table 3.

[0033] Further, the bottom circular end face of the glass tray 2 is arranged in parallel with the upper surface of the experiment table 1, and the glass tray 2 is connected with a rotating shaft arranged at a certain height from the experiment table 1.

[0034] Further, the oil outlet of the hose is arranged in a slope, and the slope is parallel to the bottom circular end surface of the glass plate 2. In the embodiment, the oil outlet of the hose is arranged in a slope, the slope is parallel to the bottom surface of the glass plate 2, and the opening end is arranged as a micro hole with a certain size according to the actual situation, and the micro hole can realize more uniform oil spreading on the glass plate 2.

[0035] Further, the injection pump 4 is provided with a first groove structure at the position of the injector 15 and a needle cylinder limiting plate 16, the needle cylinder limiting plate 16 is provided with a second groove structure matched with the surface of the injector 15, and the injector 15 is installed between the first groove structure and the second groove structure of the injection pump 4 through the needle cylinder limiting plate 16.

[0036] Further, the output end of the injector 15 is directed to the glass plate 2, and the needle cylinder limiting plate 16 is detachably connected with the pump body of the injection pump 4.

[0037] Further, the injection pump 4 is further provided with an injection pump lead screw 13 and an injection pump sliding block 14, the injection pump sliding block 14 is connected with the tail end of the push rod of the injector 15, and the injection pump lead screw 13 is arranged in parallel with the advancing direction of the injector 15.

[0038] Further, the injection pump sliding block guide shaft 12 is arranged on the injection pump sliding block 14 and is arranged in parallel with the injection pump lead screw 13.

[0039] Further, the displacement table 3 comprises a displacement table base 5 connected with the experiment table 1, the displacement table base 5 is provided with a displacement table lead screw 7 and a displacement table sliding block 8, the displacement table sliding block 8 is provided with a fixed clamp 10 at a certain height away from the displacement table sliding block 8 through a supporting shaft 9, and one end of the displacement table lead screw 7 penetrating out of the displacement table base 5 is provided with a rotating handle 11.

[0040] Further, the displacement table sliding block guide shaft 6 is arranged on the displacement table sliding block 8 and is arranged in parallel with the displacement table lead screw 7, and the axis of the displacement table lead screw 7 is arranged in parallel with the upper surface of the experiment table 1.

[0041] The use method of the quantitative oil spreading and supplying experiment device provided by the utility model comprises the following steps:

[0042] The sample oil is injected into the injection pump 4, and the total amount of the sample oil is ensured to be more than the sample oil amount used in the experiment;

[0043] The hose is connected with the injector 15 on the injection pump 4, and the other end is used for spraying oil on the circular end surface at the bottom of the glass plate 2 after the position of the hose is adjusted by the displacement table 3, and the connection position of the hose and the injector 15 is fixed by sealing material.

[0044] The position of the oil outlet of the hose is adjusted by the displacement table 3, so that the oil injected by the injector 15 can be accurately and uniformly laid on the ball-plate contact track on the glass plate 2.

[0045] By measuring the radius of the ball-plate contact track formed after the ball-plate contacts the glass plate 2, and combining the rotating speed of the glass plate 2 and the amount of the sample oil used in the experiment, the oil supply flow and the oil supply time of the injection pump 4 are determined, and the operation parameters of the injection pump 4 are set to start oil supply, so as to ensure that the sample oil in the injector 15 can be laid on the entire preset track of the glass plate 2 within a specified time.

[0046] In the embodiment, the injector 15 on the injection pump 4 needs to be connected with the oil taking pipe when the sample oil is injected, and the other end of the oil taking pipe is inserted into the sample oil. It is required to ensure that the amount of the sample oil is more than the sample oil used in the experiment, so as to ensure that the oil inlet of the hose can be completely inserted below the liquid level of the sample oil. Then, the parameters of the injection pump 4 are adjusted, and different extraction flow is selected according to the viscosity of the oil to extract the sample oil.

[0047] The device is mainly designed for film thickness experiment oil laying experiment; the main structure of the experimental device includes an experimental table 1, a glass plate 2, a displacement table 3, an injection pump 4, a displacement table base 5, a displacement table sliding block guide shaft 6, a displacement table lead screw 7, a displacement table sliding block 8, a supporting shaft 9, a fixed clamp 10, a rotating handle 11, an injection pump sliding block guide shaft 12, an injection pump lead screw 13, an injection pump sliding block 14, an injector 15, a needle cylinder limiting plate 16, an injection pump display 17; the experimental table 1 adopts a photo-elastic flow experimental table. It can be understood that the device provided by the utility model is used for film thickness experiment oil laying experiment, which realizes uniform oil laying on the preset track on the glass plate 2 by replacing manual oil laying.

[0048] When the injection pump 4 works, the sample oil is first sucked out from the beaker or the sample pipe, and the oil after being sucked out is stored in the injector 15 of the injection pump 4; by measuring the specific working condition of the steel ball 18 running track on the glass plate 2, that is, the ball-plate contact track radius, and combining the experimental conditions, including the rotating speed of the glass plate 2 and the oil supply amount required in the experiment, the oil supply flow and the oil supply time of the injection pump 4 can be determined, and the operation parameters of the injection pump 4 are set on the injection pump display 17, so as to realize the best lubrication effect.

[0049] The parameters of the used hose are as follows: wall thickness and inner diameter are 1.6 mm and 2.4 mm respectively; based on the viscosity characteristics of the oil, the oil with lower viscosity can use smaller flow rate, while the oil with higher viscosity should use larger flow rate to ensure sufficient suction force to suck out the sample oil. The feed amount is obtained by adjusting the displacement table screw 7 to realize the change of the ball disc track radius, and through this accurate setting, it can ensure that the lubricating oil is uniformly coated on the ball disc contact track, thereby improving the reliability of the experiment and the film stability of the sample oil.

[0050] The parameter settings of the injection pump 4 during oil supply are as follows:

[0051] 1. After leveling the glass disc 2, determine the contact point of the ball disc, use the caliper to measure the radius value of the track where the steel ball 18 on the ball disc and the glass disc 2 contact, and record it as R. At the same time, set the total length of the track coated with oil in this experiment as S;

[0052]

[0053] 2. Set the rotation speed of the glass disc 2 during oil coating as v, and record the time required for the glass disc 2 to rotate one revolution as t;

[0054]

[0055] 3. Assuming that the required oil amount under the experimental conditions is V, then the calculation value of the flow parameter q of the injection pump 4 should be:

[0056]

[0057] The oil supply time is t;

[0058] Therefore, the flow parameter calculation formula of the injection pump 4 is:

[0059]

[0060] The time parameter calculation formula is:

[0061]

[0062] Where V is the total oil supply amount, v is the rotation speed of the glass disc 2, and R is the radius of the ball disc contact track. The oil supply amount, the rotation speed of the glass disc 2 and the radius of the ball disc contact track are all independent variables, which can be adjusted according to the specific experimental conditions. Through the change of these parameters and the calculation of the oil supply time and flow parameter of the injection pump 4 obtained by the related formula, the injection pump 4 is adjusted and designed. This flexible adjustment mode ensures that the injection pump 4 can provide effective oil supply performance under different experimental conditions to meet the lubrication requirements and ensure the smooth progress of the experiment.

[0063] After determining the oil supply parameters of the syringe pump 4, the syringe pump 4 performs feeding motion by controlling the syringe pump screw 13 and the syringe pump slider 14. The syringe pump slider 14 is connected to the push rod end of the syringe 15, pushing it to supply oil according to the set parameters.

[0064] The data shown in Table 1 are the experimental parameters simulated under actual conditions. The reference values ​​for the specific parameter settings of the injection pump 4 are simulated under the conditions that the radii of the ball-disc contact track are 62 mm and 58 mm, the rotation speed of the glass disk 2 is 32 and 64 mm / s, and the oil supply is 2 μL, 10 μL, and 20 μL.

[0065] Table 1: Injection time and flow rate settings of the injection pump under different ball-plate contact track radii, different glass plate rotation speeds, and different oil supply rates.

[0066]

[0067] Example 2

[0068] The experiment was conducted under pure rolling conditions of the steel ball 18. A servo motor drove the glass disk 2, which in turn caused the steel ball 18 on the disk to roll purely. The glass disk 2 used in the experiment was made of K9 glass with a diameter of 150 mm, and the side of the disk in contact with the steel ball 18 was coated with a chromium-coated film. The steel ball 18 was of G5 precision with a diameter of 25.4 mm. The surface roughness of the glass disk 2 and the steel ball 18 were 20 nm and 14 nm, respectively. The entrainment speed was 32 mm / s, the load was 10 N, the test temperature was 20 ± 1 °C, the oil supply was 20 μL, and the sample oil was PAO10. The distribution of lubricant near the contact area and the interference pattern of the oil film within the contact area were magnified by a microscope, captured by a CCD camera, and stored. The interference pattern was processed offline using a two-color light modulation intensity technique. The experimental results are attached. Figure 5 and 6 .

[0069] Figure 5 The image shows an interference pattern of the oil film applied to the surface of the glass disk 2 using the device of the present invention. Figure 6 An interference pattern of the oil film on the surface of glass disk 2, obtained by manually applying oil, is shown. By comparing the two oil film images, it is found that using the device of the present invention to apply oil results in a more uniform distribution of the sample oil on the surface of glass disk 2, and a clearer film image. Therefore, using this device to apply oil can make the sample oil film on the surface of the glass disk more uniform and stable, thereby reducing experimental errors.

[0070] Example 3

[0071] The oil film interference patterns near the contact area and in the contact area of the lubricant distribution under the experimental conditions of Example 2 were captured by a CCD camera after magnification by a microscope and stored, and two oil film interference patterns obtained under the same rotation speed conditions after one rotation of the glass disc 2. The oil film interference patterns at 1 min, 2 min, 5 min and 10 min were selected respectively, and the interference patterns were processed offline using the double-color light intensity modulation technology. The oil film data obtained by using the device to distribute oil is denoted as a, and the oil film data obtained by manually distributing oil is denoted as b. The film thickness data obtained is shown in Table 2.

[0072] From the film thickness data in Table 2, it can be seen that the PAO10 oil film thickness formed by using the device to distribute oil is about 70-75 nm at 1 min, 2 min, 5 min and 10 min, and the difference in the oil film thickness is small. The PAO10 oil film thickness formed by manually distributing oil is about 60-70 nm, and the difference in the oil film thickness is large. In particular, at five minutes before the experiment, the uneven distribution of the base oil PAO10 on the contact track caused by manual oil distribution leads to unstable film formation of the base oil PAO10 on the surface of the glass disc, and the experimental error is large.

[0073] The above data show that the device for distributing oil can make the base oil PAO10 more uniformly distributed on the surface of the glass disc, and the film formation is more uniform and stable, thereby reducing the experimental error.

[0074] Table 2: Oil film processing results of the optical interference images at different times when the supply amount of the base oil PAO10 is 20 ul

[0075]

[0076] Example 4

[0077] Under the experimental conditions of Example 2, the base oil PAO20 was used for experiments, and the oil film interference patterns at 1 min, 2 min, 5 min and 10 min were selected respectively, and the interference patterns were processed offline using the double-color light intensity modulation technology. The oil film data obtained by using the device to distribute oil is denoted as c, and the oil film data obtained by manually distributing oil is denoted as d. The film thickness data obtained is shown in Table 4.

[0078] From the film thickness data of base oil PAO20 obtained by two different oil distribution methods in Table 3, it can be seen that the PAO20 oil film thickness formed by using the device to distribute oil is about 183-190 nm, and their oil film thicknesses are not much different; while the PAO20 oil film thickness formed by manual oil distribution is about 170-190 nm, and their oil film thicknesses are quite different. Manual oil distribution makes PAO20 unevenly distributed on the contact track, resulting in unstable film formation on the surface of the glass plate, and larger experimental error. The above data show that the device for oil distribution can make the base oil PAO20 more evenly distributed on the surface of the glass plate, and the film formation is more uniform and stable, thereby reducing the experimental error.

[0079] Table 3: Oil film processing results of different times of optical interference images when the supply amount of base oil PAO20 is 20ul

[0080]

[0081] Example 5

[0082] The same specification of glass plate 2 and steel ball 18 as in Example 2 was used, and the experimental conditions were: entrainment speed of 32 mm / s, load of 60 N, supply amount of 20ul, and base oil 500SN was used for film thickness experiment. The oil film interference images at 1 min, 2 min, 5 min and 10 min were selected, and the interference images were processed offline by using the double-color light modulation light intensity technology. The data obtained by using the device to distribute oil is denoted as e, and the data obtained by manual oil distribution is denoted as f. The film thickness data is shown in Table 4.

[0083] From the film thickness data of base oil 500SN obtained by two different oil distribution methods in Table 4, it can be seen that the 500SN oil film thickness formed by using the device to distribute oil is about 93-96 nm at 1 min, 2 min, 5 min and 10 min, and their oil film thicknesses are not much different; while the 500SN oil film thickness formed by manual oil distribution is about 80-93 nm, and their oil film thicknesses are quite different. Manual oil distribution makes 500SN unevenly distributed on the contact track, resulting in unstable film formation on the surface of the glass plate, and larger experimental error.

[0084] The above data show that the device for oil distribution can make the base oil 500SN more evenly distributed on the surface of the glass plate, and the film formation is more uniform and stable, thereby reducing the experimental error.

[0085] Table 4: Oil film processing results of different times of optical interference images when the supply amount of base oil 500SN is 20ul

[0086]

[0087] Example 6

[0088] Under the experimental conditions of using the same size glass disc and steel ball, the base oil PB680 is selected for experiment; the experimental conditions are: the entrainment speed is 20mm / s, the load is 30N, the oil supply is 60ul, the oil film interference images at 1min, 2min, 5min and 10min are selected respectively, and the interference images are processed offline by using the dual-color light modulation light intensity technology, the oil film data obtained by using the device to distribute oil is recorded as g, the oil film data obtained by manually distributing oil is recorded as h, and the film thickness data obtained is shown in Table 5.

[0089] Table 5 shows the film thickness data of the base oil PB680 obtained under two different oil distribution modes, and it is found that the PB680 oil film thickness formed by using the device is about 392-405nm, and their oil film thicknesses are not much different; on the contrary, the PB680 oil film thickness formed by manually distributing oil is about 380-394nm, and their oil film thicknesses are quite different, because the manual oil distribution makes PB680 unevenly distributed on the contact track, resulting in uneven and unstable film formation, and the error is large. The above data show that the device for distributing oil can also make PB680 evenly distributed on the surface of the glass disc, and the film formation is more uniform and stable, and the experimental error is smaller.

[0090] Table 5: Oil film processing results of interference images at different times when the oil supply of base oil PB680 is 60ul

[0091]

[0092] The above examples show that under the condition of limited oil supply, using the device to distribute oil can spread the micro sample oil on the ball disc contact track formed after the glass disc and the ball disc contact, ensure that the ball disc runs more smoothly when contacting the glass disc, the film formation image is clearer, the film formation is more uniform and stable, and the phenomenon of scratching the disc is reduced; in addition, the oil supply time of the injection pump is adjustable, compared with the disadvantage that manual oil distribution is not easy to supplement oil during the experiment, the device can conveniently supply oil to the glass disc again, ensure the uniformity of the oil film, and effectively realize the precise oil distribution effect, and improve the accuracy of the experiment.

[0093] Although the specific embodiments of the utility model have been described in combination with the drawings, it is not a limitation on the protection scope of the utility model, and those skilled in the art should understand that various modifications or deformations made by those skilled in the art without creative labor on the basis of the technical scheme of the utility model are still within the protection scope of the utility model.

Claims

1. A quantitative oil application test device, characterized by, Including experiment table, glass dish and injection pump are arranged on the experiment table, the injection pump is equipped with syringe, the output end of the syringe is connected with hose, the other end of the hose is equipped with oil outlet and is aligned with the bottom circular end face of glass dish, the hose connected between the syringe and glass dish is moved relative to glass dish by the clamping of displacement table.

2. The apparatus according to claim 1, wherein The bottom circular end face of glass dish is arranged in parallel with the upper surface of experiment table, and the glass dish is connected with a rotating shaft arranged at a certain height from the experiment table.

3. The apparatus according to claim 1, wherein The oil outlet of the hose is arranged in the form of an inclined surface, and the inclined surface is parallel to the bottom circular end face of the glass dish.

4. The apparatus according to claim 1, wherein The position where the injection pump is equipped with the syringe is provided with a first groove structure and a needle cylinder limiting plate, the needle cylinder limiting plate is provided with a second groove structure matched with the surface of the syringe, and the syringe is installed between the first groove structure and the second groove structure of the injection pump through the needle cylinder limiting plate.

5. The apparatus according to claim 4, wherein the oil supply device is a constant- volume oil supply device. The output end of the syringe is arranged towards the glass dish; and the needle cylinder limiting plate is detachably connected with the pump body of the injection pump.

6. The apparatus according to claim 1, wherein The injection pump is also provided with an injection pump lead screw and an injection pump sliding block, the tail end of the push rod of the syringe is connected with the injection pump sliding block, and the injection pump lead screw is arranged in parallel with the advancing direction of the syringe.

7. The apparatus according to claim 6, wherein the apparatus is characterized by: The injection pump sliding block is provided with an injection pump sliding block guide shaft, and the injection pump sliding block guide shaft is arranged in parallel with the injection pump lead screw.

8. The apparatus according to claim 1, wherein The displacement table includes a displacement table base connected with the experiment table; the displacement table base is provided with a displacement table lead screw and a displacement table sliding block, a fixed clamp is arranged on the displacement table sliding block at a certain height from the displacement table sliding block through a support shaft; and one end of the displacement table lead screw penetrating out of the displacement table base is provided with a rotating handle.

9. The apparatus according to claim 8, wherein the apparatus is characterized by: The displacement table sliding block is provided with a displacement table sliding block guide shaft, and the displacement table sliding block guide shaft is arranged in parallel with the displacement table lead screw, and the axis of the displacement table lead screw is arranged in parallel with the upper surface of the experiment table.

10. The apparatus according to claim 8, wherein the apparatus is characterized by: The fixed clamp is provided with a through hole for clamping the hose.

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