Flow cell structure for measuring lubricating oil abrasives

Abstract

The application discloses a flow-through cell structure for measuring lubricating oil abrasive particles, relates to the technical field of lubricating oil, and comprises a measuring body, two pipes, a measuring instrument and a light-emitting instrument. The measuring body is internally provided with a cavity. Both sides of the measuring body are provided with flow-through openings. The pipes are communicated with the cavity through corresponding flow-through openings, and the inner wall of the pipe is flush with the opening wall of the flow-through opening. First and second installation openings are respectively arranged on both sides of the measuring body along the height direction of the measuring body. The measuring instrument seals the first installation opening and is partially located in the cavity. The light-emitting instrument seals the second installation opening, and the surface of the part located in the second installation opening is flush with the inner wall of the cavity. The application can effectively eliminate the dead angle in the structure, improve the smooth degree of the abrasive particles flowing along with the lubricating oil, guarantee the accuracy of the measurement result, and reduce the influence of the abrasive particles on the structure.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lubricating oil, and particularly relates to a flow cell structure for measuring abrasive particles in lubricating oil. BACKGROUND

[0002] The lubricating oil is a liquid or semi-solid lubricant used in various types of automobiles and mechanical equipment to reduce friction and protect the mechanical equipment and workpieces, and has a wide application in the fields of automobiles, mechanical equipment and the like.

[0003] At present, the lubricating oil is generally used in a recycling mode to continuously lubricate the equipment. During the lubricating process of the lubricating oil on the equipment, the abrasive particles generated by the running wear of the equipment will flow out together with the lubricating oil. A filtering structure is usually arranged to filter the abrasive particles in the lubricating oil, so as to reduce the influence of the subsequent abrasive particles flowing with the lubricating oil on the running of the equipment.

[0004] However, after the filtering of the abrasive particles in the lubricating oil, there are still some fine abrasive particles in the lubricating oil. If the number of the fine abrasive particles is large, the lubricating effect of the lubricating oil on the equipment will also be affected. Therefore, a structure for measuring the content of the abrasive particles in the lubricating oil is usually arranged after the filtering structure, so that the user can know the quality of the lubricating oil in time, thereby better selecting and using the lubricating oil, and providing protection for the normal running and the prolongation of the service life of the equipment.

[0005] However, the existing structure for measuring the content of the abrasive particles in the lubricating oil is prone to dead angles, that is, the abrasive particles entering the structure together with the lubricating oil are prone to stay in the gaps or corners inside the structure, which affects the accuracy of the measurement result, and even causes blockage after long-term use, thereby affecting the recycling of the lubricating oil. SUMMARY

[0006] The present application provides a flow cell structure for measuring abrasive particles in lubricating oil, which can effectively eliminate the dead angles inside the structure, improve the smoothness of the abrasive particles flowing with the lubricating oil, ensure the accuracy of the measurement result, and reduce the influence of the abrasive particles on the structure.

[0007] The present application provides a flow cell structure for measuring abrasive particles in lubricating oil, which adopts the following technical scheme:

[0008] The flow cell structure for measuring abrasive particles in lubricating oil comprises a measurement main body, two pipelines, a measurement instrument and a light-emitting instrument.

[0009] The measurement main body has a cuboid structure as a whole, has a cylindrical cavity in the middle, and the axis of the cavity is parallel to the height direction of the measurement main body. Flow-through openings are formed on both sides of the measurement main body along the direction perpendicular to the corresponding side surface, and the two flow-through openings are aligned along the same radial direction of the cavity.

[0010] Two said pipeline is arranged in the measuring body on both sides, the pipeline through the corresponding flow through the cavity, and the inner wall of the pipeline and the mouth wall of the flow through the mouth is flush;

[0011] The measuring body along the height direction of its two sides are respectively set in the center of the first installation port and the second installation port, the first installation port is located above the second installation port, and the first installation port and the second installation port are communicated with the cavity;

[0012] The measuring instrument is arranged on the measuring body through the first installation port, the first installation port is sealed, and part of the cavity is located in the cavity;

[0013] The light emitting instrument is arranged on the measuring body through the second installation port, the second installation port is sealed, and the surface of the part located in the second installation port is flush with the inner wall of the cavity.

[0014] By using the above technical scheme, the lubricating oil entering the cavity through the pipeline will mainly pass between the measuring instrument and the light emitting instrument, which facilitates the measurement of the abrasive content in the lubricating oil and effectively improves the accuracy of the measurement result. In addition, the lubricating oil can smoothly pass through the gap between the pipeline and the measuring body and the gap between the light emitting instrument and the measuring body during the process of entering the flow through port from the pipeline and flowing through the cavity, effectively reducing the probability of abrasive blocking and staying, reducing the influence of abrasive on the structure, and effectively ensuring the accuracy of the measurement result.

[0015] Optionally, the flow through port is a square hole formed by superimposing a square region and a circular region;

[0016] The length direction of the square region is parallel to the height direction of the measuring body, the length dimension of the square region is equal to the outer diameter dimension of the pipeline, the width dimension of the square region is equal to the dimension of the part of the measuring instrument located in the cavity, and the radial dimension of the circular region is equal to the inner diameter dimension of the pipeline.

[0017] By using the above technical scheme, the flow area of the lubricating oil entering the cavity through the flow through port can be adapted to the measurement area of the measuring instrument, so as to further improve the accuracy of the measurement result.

[0018] Optionally, the circular region is flared in the direction of approaching the cavity along the axis direction of itself, and the minimum radial dimension of the circular region is equal to the inner diameter dimension of the pipeline.

[0019] By adopting the technical scheme, the process of the lubricating oil entering the cavity through the flow-through opening can be smoother, so that the probability of the abrasive particles staying in the cavity due to obstruction can be further reduced, and the internal dead angle can be effectively eliminated.

[0020] Optionally, two transition grooves that are adapted to the square area are formed in one end of the pipeline close to the flow-through opening, the length dimension of the transition grooves is equal to the width dimension of the square area, and the transition grooves are adapted to and communicated with the part of the square area that is beyond the circular area.

[0021] By adopting the technical scheme, the process of the lubricating oil entering the cavity through the square area can be smoother, and the probability of the abrasive particles staying due to the dead angle formed between the pipeline and the position of the square area of the measuring body can be reduced.

[0022] Optionally, an arc-shaped first transition surface is formed between the inner wall of the cavity in the radial direction and the inner wall of the cavity close to one end of the second mounting opening.

[0023] By adopting the technical scheme, the lubricating oil entering the cavity can pass between the measuring instrument and the light-emitting instrument conveniently, and the probability of the abrasive particles staying in the corner of the bottom of the cavity can be effectively reduced, so that the dead angle can be further eliminated.

[0024] Optionally, a second transition surface is formed in the inner wall of the measuring body close to the second mounting opening in the square area, and a third transition surface is formed on the groove wall of the transition groove of the pipeline; two ends of the second transition surface are respectively connected to one end of the first transition surface and one end of the third transition surface, and the other end of the third transition surface is connected to the inner wall of the pipeline.

[0025] By adopting the technical scheme, the process of the lubricating oil entering the bottom of the cavity from the pipeline through the flow-through opening can be smoother, and the probability of the abrasive particles staying at the corners between different structures in the above process can be further reduced, so that the dead angle can be further eliminated.

[0026] Optionally, two observation windows are further included; the measuring body is provided with observation openings on both sides perpendicular to the opening direction of the flow-through opening, both the observation openings are communicated with the cavity, the observation windows are installed in the corresponding observation openings, and the surface of the observation window close to the cavity is flush with the inner wall of the cavity.

[0027] By adopting the technical scheme, the staff can conveniently observe the situation in the cavity, so that the staff can know the staying situation of the abrasive particles in the cavity and the working situation of the light-emitting instrument in time, and the equipment can be adjusted in time; in addition, the probability of the abrasive particles staying due to obstruction close to the observation opening in the cavity can be effectively reduced, so that the dead angle can be further eliminated.

[0028] Optionally, the observation port is located at a position close to the second mounting port on the measuring body.

[0029] By adopting the above technical scheme, the staff can intuitively observe the flow of the lubricating oil through the space between the measuring instrument and the light-emitting instrument.

[0030] Optionally, an inner wall of a side close to the second mounting port of the observation port is flush with an inner wall of an end close to the second mounting port of the cavity.

[0031] By adopting the above technical scheme, the staff can intuitively observe the flow of the lubricating oil through the space between the measuring instrument and the light-emitting instrument.

[0032] Optionally, a length dimension of the observation port is equal to a dimension of a part of the measuring instrument located in the cavity, and a width dimension of the observation port is equal to a spacing between the measuring instrument and the light-emitting instrument.

[0033] By adopting the above technical scheme, the staff can intuitively observe the flow of the lubricating oil through the space between the measuring instrument and the light-emitting instrument.

[0034] In summary, the present application includes at least one of the following beneficial effects:

[0035] 1. The dead angle inside the structure can be effectively eliminated, thereby effectively reducing the probability of the abrasive particles being blocked and staying inside the structure;

[0036] 2. The smoothness of the flow of the abrasive particles with the lubricating oil can be effectively improved, thereby further effectively reducing the probability of the abrasive particles being blocked and staying inside the structure;

[0037] 3. The accuracy of the measurement result can be effectively ensured, and the influence of the blocked and stayed abrasive particles on the structure can be reduced;

[0038] 4. The staff can conveniently observe the content of the abrasive particles in the lubricating oil and the operation of the detection device in a timely manner, so as to make timely adjustments according to the situation. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 is a structural schematic view of a flow cell structure for measuring abrasive particles of lubricating oil according to an embodiment of the present application;

[0040] Figure 2 is a longitudinal sectional view of a flow cell structure for measuring abrasive particles of lubricating oil according to an embodiment of the present application;

[0041] Figure 3 is a transverse sectional view of a flow cell structure for measuring abrasive particles of lubricating oil according to an embodiment of the present application;

[0042] Figure 4 is an exploded view of a flow cell structure for measuring abrasive particles in lubricating oil according to an embodiment of the present application;

[0043] Figure 5 is a half-section view of the flow cell structure after the pipes are installed in the measuring body according to an embodiment of the present application.

[0044] Reference signs: 1, measuring body; 11, cavity; 12, flow port; 121, square area; 122, circular area; 13, first installation port; 14, second installation port; 15, observation port; 16, first transition surface; 17, second transition surface; 2, pipe; 21, transition groove; 22, third transition surface; 3, measuring instrument; 4, light-emitting instrument; 5, observation window. DETAILED DESCRIPTION

[0045] The following will be described in detail with reference to the accompanying drawings. Figures 1-5 The present application will be described in further detail.

[0046] The present application discloses a flow cell structure for measuring abrasive particles in lubricating oil. After the lubricating oil plays a lubricating role on a device, the lubricating oil flows through the flow cell structure, and the content of abrasive particles in the lubricating oil is measured in real time to determine whether the quality of the lubricating oil can meet the needs of the device lubrication, so that the staff can replace the lubricating oil in time, reduce the influence of abrasive particles on the operation of the device to be lubricated, and prolong the service life of the device to be lubricated.

[0047] Referring to Figure 1 and Figure 2 , the flow cell structure includes a measuring body 1, two pipes 2, a measuring instrument 3, a light-emitting instrument 4, and two observation windows 5. The inside of the measuring body 1 is used for the flow of lubricating oil, providing a place for measuring the content of abrasive particles in the lubricating oil. The two pipes 2 are respectively used for the inflow and outflow of the lubricating oil into and out of the measuring body 1. The measuring instrument 3 is used for measuring the content of abrasive particles in the lubricating oil flowing through the inside of the measuring body 1. The light-emitting instrument 4 is used for providing illumination in the inside of the measuring body 1, facilitating the measuring instrument 3 to measure the content of abrasive particles. The observation window 5 is used for the staff to observe the situation of abrasive particles staying in the inside of the measuring body 1 and the operation of the light-emitting instrument 4, facilitating the staff to clean the inside of the measuring body 1 in time when the number of abrasive particles staying in the inside of the measuring body 1 is relatively large, and to repair and replace the light-emitting instrument 4 in time when the light-emitting instrument 4 fails.

[0048] Referring to Figure 2 and Figure 3The measuring body 1 is a rectangular parallelepiped with a square cross-section, and is installed with the square cross-section as the horizontal plane. A cylindrical cavity 11 is defined within the measuring body 1. The axis of the cavity 11 is parallel to the height direction of the measuring body 1 and coincides with the vertical centerline of the measuring body 1.

[0049] Reference Figure 2 and Figure 4 , both sides of the measuring body 1 in the horizontal direction are provided with flow ports 12 for the inlet and outlet of lubricating oil, the flow ports 12 are communicated with the cavity 11 and pass through the surface of the measuring body 1, and the two pipes 2 are respectively installed on both sides of the measuring body 1 in the horizontal direction; the pipes 2 are generally hollow cylindrical structures, the two pipes 2 correspond one-to-one to the two flow ports 12, one end of the pipe 2 in the axial direction is fixedly connected to the measuring body 1 through the flow port 12, and the lubricating oil can flow into and out of the cavity 11 through the two pipes 2.

[0050] After both pipes 2 are fixedly installed on the measuring body 1, the axes of the two pipes 2 coincide with each other, the axes of the pipes 2 are perpendicular to the adjacent surfaces on the measuring body 1, and the axes of the pipes 2 intersect with the axis of the cavity 11. In this embodiment, the pipes 2 and the measuring body 1 are preferably fixedly connected by welding. After the two are fixedly connected, they are demagnetized as a whole, and the inner walls of the pipes 2 and the inner walls of the measuring body 1 are smooth to reduce the probability of abrasive adsorption. The surface of the measuring body 1 preferably has a groove at the outer edge of the flow port 12 for the pipes 2 to be plugged into the measuring body 1, as well as a clearance groove to facilitate welding operations by the staff. Since the designs of the above-mentioned grooves and clearance grooves are common existing technologies, they will not be described in detail here.

[0051] Reference Figure 2 and Figure 5 The measuring body 1 has a first mounting opening 13 and a second mounting opening 14 at its ends along its height direction. The first mounting opening 13 is located above the second mounting opening 14 and both the first mounting opening 13 and the second mounting opening 14 communicate with the cavity 11. The first mounting opening 13 and the second mounting opening 14 are both circular openings. The axis of the first mounting opening 13 coincides with the axis of the second mounting opening 14 and also with the axis of the cavity 11.

[0052] The first installation opening 13 is used for installing and fixing the measuring instrument 3 on the measuring body 1. After the measuring instrument 3 is installed and fixed on the measuring body 1, the measuring instrument 3 will be partially located on the top of the measuring body 1 and partially located in the cavity 11, and the measuring instrument 3 will seal the first installation opening 13. In the embodiment, the measuring instrument 3 is preferably an industrial camera capable of shooting in a vertically downward direction, and the part of the industrial camera located in the cavity 11 has a cylindrical structure as a whole, and the axis of the part coincides with the axis of the cavity 11. Since the industrial camera is a common prior art, it will not be described here, and only a brief representation is made in the drawings.

[0053] The second installation opening 14 is used for installing and fixing the light emitting instrument 4 on the measuring body 1. After the light emitting instrument 4 is installed and fixed on the measuring body 1, the light emitting instrument 4 will partially fill the second installation opening 14 and seal the second installation opening 14, and partially located on the bottom of the measuring body 1. In the embodiment, the light emitting instrument 4 is preferably a planar light source, and the part of the planar light source located in the second installation opening 14 is flush with the inner wall of the cavity 11 close to the second installation opening 14. The light emitting area of the planar light source is circular and the illumination coverage range is not less than the shooting range of the measuring instrument 3 in the cavity 11. Since the planar light source is a common prior art, it will not be described here, and only a brief representation is made in the drawings.

[0054] The space formed between the part of the measuring instrument 3 located in the cavity 11 and the light emitting instrument 4 is the measuring area. During the process of the lubricating oil flowing through the cavity 11 through the pipeline 2, the measuring instrument 3 can measure the content of abrasive particles in the lubricating oil flowing through the space between the measuring instrument 3 and the light emitting instrument 4 in real time.

[0055] Referring to Figure 1 and Figure 5 , the other two sides of the measuring body 1 in the horizontal direction are provided with observation openings 15 for the staff to directly observe the situation in the cavity 11. The observation opening 15 is approximately in the shape of a waist-shaped hole. The width direction of the observation opening 15 is parallel to the height direction of the measuring body 1, and the length direction of the observation opening 15 is parallel to the length of the adjacent side of the square cross section of the measuring body 1.

[0056] The two observation openings 15 are aligned in a direction perpendicular to the plane in which the measuring body 1 is located, and the positions of the observation openings 15 on the plane in which the measuring body 1 is located are centered in the direction of the length of the adjacent side of the square cross section of the measuring body 1.

[0057] Referring to Figure 2 and Figure 5 , further, the opening wall of the observation opening 15 close to the second installation opening 14 is flush with the inner wall of the cavity 11 close to the second installation opening 14.

[0058] At this time, the staff can directly observe the flowing of the lubricating oil between the measuring instrument 3 and the light emitting instrument 4 through the observation port 15, and can also directly observe the lighting effect of the light emitting instrument 4 in the cavity 11.

[0059] Further, preferably, the length dimension of the observation port 15 is equal to the radial dimension of the part of the measuring instrument 3 located in the cavity 11, the width dimension of the observation port 15 is equal to the distance between the measuring instrument 3 and the light emitting instrument 4, and the observation port 15 is aligned with the measuring area between the measuring instrument 3 and the light emitting instrument 4 along the opening direction of the observation port 15.

[0060] At this time, the staff can more directly observe the flowing of the lubricating oil between the measuring instrument 3 and the light emitting instrument 4 through the observation port 15, and can also more directly observe the lighting effect of the light emitting instrument 4 in the cavity 11.

[0061] The two observation windows 5 correspond to the two observation ports 15 one by one, the observation window 5 is fixed on the measuring body 1 through the corresponding observation port 15, and the staff can observe the inside of the cavity 11 through the observation port 15 through the observation window 5. After the observation window 5 is fixed on the measuring body 1, the observation window 5 can fill the corresponding observation port 15, and at this time, the surface of the observation window 5 close to the cavity 11 is flush with the inner wall of the cavity 11 close to the observation port 15. In this embodiment, since the observation window 5 is a common prior art, it will not be described here, and only a brief representation is made in the drawings.

[0062] Referring to Figure 2 and Figure 4 Further, preferably, the flow port 12 is a square-round hole, the shape of which is formed by superimposing a square area 121 and a circular area 122, and the center points of the circular area 122 and the square area 121 coincide. Among them, the radial dimension of the circular area 122 is equal to the inner diameter dimension of the pipeline 2, after the corresponding pipeline 2 is installed, the axis of the circular area 122 coincides with the axis of the pipeline 2, and the inner wall of the flow port 12 at the circular area 122 is flush with the inner wall of the pipeline 2; the length dimension of the square area 121 is equal to the outer diameter dimension of the pipeline 2, the width dimension of the square area 121 is equal to the radial dimension of the part of the measuring instrument 3 located in the cavity 11, the length direction of the square area 121 is parallel to the height direction of the measuring body 1, and the inner wall of the flow port 12 at the square area 121 close to the second mounting port 14 is flush with the inner wall of the cavity 11 close to the second mounting port 14.

[0063] Referring to Figure 2 and Figure 3Further, in order to facilitate the lubricating oil to flow in and out of the cavity 11 through the circular area 122 of the flow-through opening 12, the inner wall of the measuring body 1 at the circular area 122 of the flow-through opening 12 is preferably designed to be flared towards the cavity 11, and the minimum radial dimension of the circular area 122 is equal to the inner diameter of the pipe 2. In this case, the lubricating oil can be quickly spread and quickly gathered during the process of flowing in and out of the cavity 11 through the circular area 122 of the flow-through opening 12, so as to further improve the smoothness of the lubricating oil flowing through the cavity 11.

[0064] With reference to Figure 3 And Figure 4 Further, in order to facilitate the lubricating oil to flow in and out of the cavity 11 through the square area 121 of the flow-through opening 12, and facilitate the pipe 2 to be installed and fixed through the flow-through opening 12, the end of the pipe 2 for fixed connection with the measuring body 1 is preferably provided with two transition grooves 21.

[0065] The transition grooves 21 are in the shape of a combined body composed of two triangular plate structures, and the maximum width dimension of the combined body is equal to the width dimension of the square area 121. After the pipe 2 is installed, the cross-sectional area for lubricating oil flow in the transition grooves 21 gradually increases towards the flow-through opening 12, and the end of the transition grooves 21 close to the flow-through opening 12 will completely match and communicate with the space outside the square area 121 and the circular area 122, and the lubricating oil will be divided into two flows under the action of the transition grooves 21, and the flow directions of the two lubricating oil flows are flared towards the flow-through opening 12.

[0066] In this case, the lubricating oil in the pipe 2 will mainly flow in and out of the cavity 11 through the transition grooves 21 at the bottom and then through the bottom of the square area 121 of the flow-through opening 12 under the action of gravity, and the transition grooves 21 can make the process of the lubricating oil flowing in and out of the cavity 11 through the square area 121 more smooth.

[0067] With reference to Figure 2 And Figure 5 Further, the inner wall of the cavity 11 in the radial direction has four first transition surfaces 16 between the area close to the second installation opening 14 and the inner wall close to one end of the second installation opening 14, the inner wall of the part of the square area 121 outside the circular area 122 has second transition surfaces 17 at the corners, one end of the pipe 2 has two third transition surfaces 22 on the groove walls on both sides of the transition grooves 21, and the first transition surfaces 16, the second transition surfaces 17 and the third transition surfaces 22 are all arc surfaces.

[0068] The first transition surface 16 extends along a circular arc track outside the cavity 11, one end of which along the circular arc track is connected with the mouth wall of the adjacent observation port 15, and the other end of which along the circular arc track is connected with one end of the adjacent second transition surface 17; one end of the second transition surface 17 away from the adjacent first transition surface 16 is connected with one end of the adjacent third transition surface 22, and one end of the third transition surface 22 away from the adjacent second transition surface 17 is connected with the inner wall of the corresponding pipeline 2.

[0069] At this time, the first transition surface 16, the second transition surface 17 and the third transition surface 22 can make the process of the lubricating oil entering and leaving the cavity 11 through the square area 121 of the flow port 12 more smooth, and can effectively reduce the probability that the abrasive particles in the lubricating oil are blocked at the corners inside the pipeline 2 and the measuring body 1 during the flow process, thereby effectively eliminating the dead angle, and further reducing the probability that the abrasive particles staying in the cavity 11 affect the normal measurement and the measurement result.

[0070] The implementation principle of the flow cell structure for measuring the abrasive particles of the lubricating oil according to the embodiment of the application is as follows:

[0071] After the lubricating oil flows into the cavity 11 through the pipeline 2, it can mainly flow through the space between the measuring instrument 3 and the light emitting instrument 4, is illuminated by the light emitting instrument 4 and is measured by the measuring instrument 3 in real time, and the real-time data of the measurement can be obtained by the staff in the background, so that the quality of the lubricating oil can be judged by the measurement result, and the lubricating oil can effectively lubricate the equipment; the situation of the lubricating oil inside the cavity 11 and the operation of the light emitting instrument 4 can also be observed through the observation window 5, so that the abrasive particle content in the cavity 11 and whether the light emitting instrument 4 operates normally can be known in time, and corresponding operation adjustment can be made in time according to different situations.

[0072] During the process of the lubricating oil entering and leaving the cavity 11, the flow can be kept smooth, and the abrasive particles are not easily blocked at the corners of the internal structure, so that the dead angle can be effectively realized, and the probability that the abrasive particles staying in the structure affect the normal operation of the structure is effectively reduced.

[0073] The above are the preferred embodiments of the application, and do not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape, principle of the application should be covered in the protection scope of the application.

Claims

1. A flow cell structure for measuring lubricating oil abrasives, characterized by, It comprises a measuring body (1), two pipes (2), a measuring instrument (3) and a light emitting instrument (4); The measuring body (1) is a cuboid in whole, has a cylindrical cavity (11) in the middle, and the axis of the cavity (11) is parallel to the height direction of the measuring body (1); two flow-through openings (12) are formed on the two sides of the measuring body (1) along the direction perpendicular to the corresponding side face, and the two flow-through openings (12) are aligned along the same radial direction of the cavity (11); The two pipes (2) are arranged on the two sides of the measuring body (1) respectively, and the pipes (2) are communicated with the cavity (11) through the corresponding flow-through openings (12), and the inner wall of the pipe (2) is flush with the opening wall of the flow-through opening (12); The first and second installation openings (13, 14) are formed in the middle of the two side faces of the measuring body (1) along the height direction of the measuring body (1), the first installation opening (13) is located above the second installation opening (14), and the first and second installation openings (13, 14) are communicated with the cavity (11); The measuring instrument (3) is arranged on the measuring body (1) through the first installation opening (13), the first installation opening (13) is sealed, and part of the measuring instrument (3) is located in the cavity (11); The light emitting instrument (4) is arranged on the measuring body (1) through the second installation opening (14), the second installation opening (14) is sealed, and the surface of the part of the light emitting instrument (4) located in the second installation opening (14) is flush with the inner wall of the cavity (11).

2. A flow cell structure for measuring wear particles in lubricating oil according to claim 1, wherein, The flow-through opening (12) is a square-hole formed by superimposing a square area (121) and a circular area (122); The length direction of the square area (121) is parallel to the height direction of the measuring body (1), the length dimension of the square area (121) is equal to the outer diameter dimension of the pipe (2), the width dimension of the square area (121) is equal to the dimension of the part of the measuring instrument (3) located in the cavity (11), and the radial dimension of the circular area (122) is equal to the inner diameter dimension of the pipe (2).

3. A flow cell structure for measuring wear particles in lubricating oil according to claim 2, wherein The circular area (122) is flared along the axis direction thereof towards the cavity (11), and the minimum radial dimension of the circular area (122) is equal to the inner diameter dimension of the pipe (2).

4. A flow cell structure for measuring wear particles in lubricating oil according to claim 2, wherein The pipe (2) is provided with two transition grooves (21) which are adapted to the square area (121) at the end close to the flow-through opening (12), the length dimension of the transition groove (21) is equal to the width dimension of the square area (121), and the transition groove (21) is adapted to and communicated with the part of the square area (121) beyond the circular area (122).

5. A flow cell structure for measuring wear particles in lubricating oil according to claim 4, wherein The inner wall in the radial direction of the cavity (11) and the inner wall of the cavity (11) close to the second installation opening (14) have an arc-shaped first transition surface (16).

6. A flow cell structure for measuring wear particles in lubricating oil according to claim 5, wherein The second transition surface (17) is arranged on the inner wall of the square area (121) of the measuring body (1) near the second installation opening (14), and the third transition surface (22) is arranged on the groove wall of the transition groove (21) of the pipeline (2); the two ends of the second transition surface (17) are respectively connected with one end of the first transition surface (16) and one end of the third transition surface (22), and the other end of the third transition surface (22) is connected with the inner wall of the pipeline (2).

7. The flow cell structure for measuring wear particles in lubricating oil according to claim 1, wherein Two observation windows (5) are further included; the measuring body (1) is provided with an observation opening (15) on each side perpendicular to the opening direction of the flow opening (12), the two observation openings (15) are communicated with the cavity (11), and the observation window (5) is installed in the corresponding observation opening (15), and the surface of the observation window (5) near the cavity (11) is flush with the inner wall of the cavity (11).

8. A flow cell structure for measuring wear particles in lubricating oil according to claim 7, wherein The observation opening (15) is arranged on the measuring body (1) near the second installation opening (14).

9. A flow cell structure for measuring wear particles in lubricating oil according to claim 8, wherein, The inner wall of the side of the observation opening (15) near the second installation opening (14) is flush with the inner wall of one end of the cavity (11) near the second installation opening (14).

10. A flow cell structure for measuring wear particles in lubricating oil according to claim 9, wherein, The length of the observation opening (15) is equal to the size of the part of the measuring instrument (3) in the cavity (11), and the width of the observation opening (15) is equal to the distance between the measuring instrument (3) and the light emitting instrument (4).

Images