Lubricating oil viscosity detection device

Abstract

The invention belongs to the technical field of viscosity detection devices, and particularly discloses a lubricating oil viscosity detection device which comprises a base, a viscosity detector and a water bath barrel are arranged at the top of the base, a sealing cover for sealing the water bath barrel is arranged at the top of the water bath barrel, and a plurality of detection holes are formed in the top of the sealing cover in a penetrating mode. According to the capillary viscometer, by arranging the positioning assembly, in the process that the capillary viscometer is inserted into a water bath, when a suction cup at the bottom of a positioning sleeve is in contact with the inner wall of a water bath barrel, the top end of the suction cup can be blocked under the matching action of a compression spring, an insertion rod and a sealing rubber ring, and air in the suction cup can be pressed out along the bottom of the suction cup; therefore, stable connection between the suction cup and the inner wall of the bottom of the water bath barrel is achieved, the bottom end of the capillary viscometer is limited in the detection process, the capillary viscometer is prevented from being affected by water flow fluctuation, and the detection precision is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of viscosity detection devices, and particularly relates to a lubricating oil viscosity detection device. BACKGROUND

[0002] The lubricating oil viscosity detection device is a professional instrument device for accurately measuring the physical properties of lubricating oil viscosity, and its core function is to obtain the flow resistance data of lubricating oil under specific temperature, pressure or shear conditions through a standardized method, thereby providing key basis for quality control, performance evaluation, equipment matching and failure analysis of lubricating oil.

[0003] The existing lubricating oil viscosity detection device mainly detects the viscosity of lubricating oil by detecting the flow time of lubricating oil in a capillary viscometer through a laser probe. However, in actual detection, in order to detect the viscosity of lubricating oil at different temperatures, the capillary viscometer needs to be placed in a water bath cylinder for heating. In the heating process, in order to ensure the balance of water temperature in the water bath cylinder, a stirring device is generally used to stir the water in the water bath cylinder. When the capillary viscometer is inserted into the water bath cylinder, the bottom end of the capillary viscometer lacks a positioning device, so that when the water is stirred, the fluctuating water will cause the capillary viscometer to vibrate, thereby affecting the accuracy of detection by the laser probe.

[0004] Therefore, it is necessary to invent a lubricating oil viscosity detection device to solve the above problems. SUMMARY

[0005] In view of the above problems, the application provides a lubricating oil viscosity detection device to solve the problems in the background art.

[0006] To achieve the above purpose, the application provides the following technical scheme: A lubricating oil viscosity detection device, comprising a base, a viscosity detector and a water bath cylinder are arranged on the top of the base, a sealing cover is arranged on the top of the water bath cylinder to seal the water bath cylinder, a plurality of detection holes are formed in the top of the sealing cover, a heat preservation cover is arranged in the detection hole to seal the detection hole, or a detection assembly is arranged in the detection hole to detect the lubricating oil, the detection assembly comprises a sealing piece, a capillary viscometer, a locking piece and a positioning assembly, the sealing piece is threadedly inserted into the detection hole, the capillary viscometer is inserted through the sealing piece, the locking piece is connected to the sealing piece and sleeved on one end of the capillary viscometer to fix the capillary viscometer, and the positioning assembly is connected between the bottom of the capillary viscometer and the inner wall of the bottom of the water bath cylinder to limit the bottom end of the capillary viscometer.

[0007] Further, the sealing member comprises a threaded ring, a fixed cover, a rotating ring, a fixed strip and an adjusting screw rod, the threaded ring is threaded inserted into the detection hole, the fixed cover is slidingly inserted into the inner side of the threaded ring, the rotating ring is rotationally connected to the inner wall of the top opening of the threaded ring, the fixed strip is horizontally fixedly connected to the inner side of the rotating ring, and the fixed strip is located in the gap between the two ends of the capillary viscometer, and the adjusting screw rod is vertically threaded inserted into the fixed strip, and the bottom end of the adjusting screw rod is rotationally connected to the middle position of the top of the fixed cover.

[0008] Further, the locking member comprises a locking block and a locking screw rod, the locking block is slidingly sleeved on one end of the capillary viscometer, and the bottom of the locking block is detachably connected to the top of the fixed cover, and the locking screw rod is horizontally threaded inserted into the side of the locking block, and the locking screw rod can be in contact with the surface of the capillary viscometer.

[0009] Further, the positioning assembly comprises a positioning sleeve, a U-shaped clamp block, a locking pin and an adsorption mechanism, the positioning sleeve is detachably sleeved on the bottom of the capillary viscometer, and the positioning sleeve is provided with a vertical positioning hole penetrating through the position opposite to the gap between the two ends of the capillary viscometer, the U-shaped clamp block is slidingly installed on the inner side of the positioning sleeve in the vertical direction, and the opening of the U-shaped clamp block faces upward, the U-shaped clamp block is elastic, and the bottom end of the capillary viscometer is inserted into the U-shaped clamp block, the locking pin is vertically inserted into the U-shaped clamp block in the horizontal direction, and the two ends of the locking pin are located in the two positioning holes respectively, and the adsorption mechanism is connected to the bottom of the positioning sleeve for adsorbing and connecting the positioning sleeve and the inside of the bottom of the water bath cylinder.

[0010] Further, the adsorption mechanism comprises a connecting pipe, a suction disc, a plug rod, a sealing ring, a sealing rubber ring and a compression spring, the connecting pipe is rotationally connected to the middle position of the bottom of the positioning sleeve, and the positioning sleeve and the connecting pipe are provided with a connecting hole penetrating through the position opposite to each other, the suction disc is fixedly connected to the bottom of the connecting pipe, and the bottom space of the suction disc is communicated with the inner side area of the connecting pipe, the plug rod is vertically fixedly connected to the bottom of the U-shaped clamp block, and the plug rod is inserted into the connecting hole, the sealing ring is fixedly connected to the inner wall of the connecting pipe, and the diameter of the plug rod matches the inner diameter of the sealing ring, the sealing rubber ring is fixedly sleeved on the plug rod, and when the bottom end of the plug rod is inserted into the inner side of the sealing ring, the outer side surface of the sealing rubber ring is tightly connected to the connecting position of the connecting pipe and the positioning sleeve, and the compression spring is fixedly connected to the bottom of the sealing ring, and the compression spring is coaxial with the sealing ring, and the bottom of the compression spring is fixedly connected with an annular rubber pad.

[0011] Further, the bottom of the U-shaped clamp block is fixedly connected with an annular protrusion coaxial with the sealing ring, and when the bottom of the U-shaped clamp block is attached to the inner wall of the bottom of the positioning sleeve, the annular protrusion can be inserted on the inner wall of the bottom of the positioning sleeve for sealing the connecting hole in cooperation with the sealing rubber ring.

[0012] Further, the lubricating oil viscosity detection device further comprises a heating rod, a stirring rod, stirring blades, a motor, a protective cover and a laser detection head, the heating rod is vertically inserted through the sealing cover, the stirring rod is vertically rotated and inserted through the sealing cover, the motor is drivingly connected to the top end of the stirring rod, and the motor and the heating rod are electrically connected together, the number of the stirring blades is multiple groups, the multiple groups of stirring blades are fixedly connected to the surface of the stirring rod from top to bottom, and the stirring blades can push the water downward, the protective cover is sleeved on the periphery of the stirring rod, the sidewall of the protective cover is designed as a hollow, and a plurality of dense small holes are uniformly and vertically formed in the bottom of the protective cover, the side surface of the protective cover close to the bottom is recessed inward to form an annular groove, and the number of the laser detection heads is the same as that of the detection holes, and the plurality of laser detection heads are installed in the annular groove.

[0013] Further, the bottom of the protective cover is rotatably installed with an impeller, the diameter of the impeller is matched with the diameter of the bottom of the protective cover, and the blades of the impeller are helical.

[0014] Further, the capillary viscometer comprises a thick segment and a thin segment, the thick segment and the thin segment are connected together through a buffer ball, the locking block is sleeved on the thin segment, the thin segment is provided with a liquid storage ball and a measuring ball from top to bottom, and the liquid storage ball and the measuring ball are connected together through a capillary glass tube, and the top end of the thin segment is detachably connected with a rubber ball for inhaling air.

[0015] The technical effects and advantages of the present application are as follows: 1、The positioning assembly is arranged, when the positioning sleeve bottom suction disc contacts with the inner wall of the water bath cylinder, the top end of the suction disc can be blocked under the cooperation of the compression spring, the inserting rod and the sealing rubber ring, and the air in the suction disc can be pressed out along the bottom of the suction disc, so that the stable connection of the suction disc and the inner wall of the bottom of the water bath cylinder is realized, and the bottom end of the capillary viscometer is limited during the detection process, so that the capillary viscometer is prevented from being affected by water flow fluctuation, and the detection precision is improved. 2、The present application can push the water downwards with the rotation of the stirring blade when detecting the viscosity of lubricating oil at different temperatures, so that the water can pass through the small holes at the bottom of the protective cover, and then the downward water flow can be divided into fine microflows, reducing the vibration generated when the water is stirred, and when the microflows act on the impeller, the microflows can drive the impeller to rotate slowly, thereby converting the kinetic energy of the water into the kinetic energy of the impeller, reducing the influence of the water flow kinetic energy on the capillary viscometer, and improving the detection precision of the laser detection head. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the overall structure schematic diagram of the present application; Figure 2 is the three-dimensional schematic diagram of the sealing cover, heat preservation cover and detection assembly structure in the present application; Figure 3 is the three-dimensional sectional view of the protective cover in the present application; Figure 4 is the three-dimensional schematic diagram of the capillary viscometer, detection assembly and rubber ball (31) in the present application; Figure 5 is the three-dimensional schematic diagram of the capillary viscometer in the present application; Figure 6 is the three-dimensional schematic diagram of the sealing element in the present application; Figure 7 is the three-dimensional sectional view of the positioning assembly in the present application.

[0017] In the figure: 1, base; 2, viscosity detector; 3, water bath cylinder; 4, sealing cover; 5, heat preservation cover; 6, capillary viscometer; 61, buffer ball; 62, liquid storage ball; 63, measuring ball; 64, capillary glass tube; 7, threaded ring; 8, fixed cover; 9, rotating ring; 10, fixed bar; 11, adjusting screw; 12, locking block; 13, locking screw; 14, positioning sleeve; 15, U-shaped clamp block; 16, locking pin; 17, connecting pipe; 18, suction cup; 19, insertion rod; 20, sealing ring; 21, sealing rubber ring; 22, compression spring; 23, annular protrusion; 24, heating rod; 25, stirring rod; 26, stirring blade; 27, motor; 28, protective cover; 29, laser detection head; 30, impeller; 31, rubber ball. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the present application will be described clearly and completely below in combination with embodiments.

[0019] The present application provides a method for detecting the viscosity of lubricating oil at different temperatures, which comprises the following steps: Figures 1 to 7A lubricating oil viscosity detection device shown in the figure includes a base 1, a viscosity detector 2 and a water bath 3 are provided on the top of the base 1, a sealing cover 4 for sealing the water bath 3 is provided on the top of the water bath 3, a plurality of detection holes are opened through the top of the sealing cover 4, and a heat-insulating cover 5 for sealing the detection holes is provided in the detection holes, or a detection component for detecting the lubricating oil is provided, the detection component includes a sealing member, a capillary viscometer 6, a locking member and a positioning member, the sealing member is threadedly inserted in the detection hole, the capillary viscometer 6 is inserted through the sealing member, the locking member is connected to the sealing member, and the locking member is sleeved on one end of the capillary viscometer 6 for fixing the capillary viscometer 6, and the positioning member is connected between the bottom of the capillary viscometer 6 and the inner wall of the bottom of the water bath 3 for limiting the bottom end of the capillary viscometer 6; The locking member includes a locking block 12 and a locking screw 13. The locking block 12 is slidably sleeved on one end of the capillary viscometer 6, and the bottom of the locking block 12 is detachably connected to the top of the fixed cover 8. The locking screw 13 is horizontally threaded and inserted into the side of the locking block 12, and the locking screw 13 can contact the surface of the capillary viscometer 6. When testing the lubricating oil, first insert the capillary viscometer 6 into the sealing member from bottom to top, then twist the locking screw 13 so that the locking screw 13 can lock the capillary viscometer 6, then sleeve the positioning assembly on the bottom of the capillary viscometer 6, then remove one of the insulation covers 5, and insert the capillary viscometer 6 connected with the positioning assembly into the opened detection hole. During the downward insertion of the capillary viscometer 6, when the sealing member contacts the detection hole, the sealing member can be rotated to realize the connection operation between the sealing member and the sealing cover 4. After the connection is completed, the sealing member can be adjusted to drive the capillary viscometer 6 to move downward. When the positioning assembly at the bottom of the capillary viscometer 6 contacts the bottom inner wall of the water bath 3, the positioning assembly can be adsorbed on the bottom inner wall of the water bath 3, thereby realizing the restriction of the bottom end of the capillary viscometer 6, thereby ensuring that the capillary viscometer 6 will not be affected by water flow fluctuations during the detection process, thereby improving the detection accuracy.

[0020] like Figures 1 to 7 As shown, the sealing member includes a threaded ring 7, a fixed cover 8, a swivel 9, a fixed bar 10 and an adjusting screw 11. The threaded ring 7 is threadedly inserted into the detection hole, the fixed cover 8 is slidably inserted into the inner side of the threaded ring 7, the swivel 9 is rotatably connected to the inner wall of the top opening of the threaded ring 7, the fixed bar 10 is horizontally fixedly connected to the inner side of the swivel 9, and the fixed bar 10 is located in the gap between the two ends of the capillary viscometer 6. The adjusting screw 11 is vertically threaded and inserted into the fixed bar 10, and the bottom end of the adjusting screw 11 is rotatably connected to the middle position of the top of the fixed cover 8; The positioning assembly comprises a positioning sleeve 14, a U-shaped clamp block 15, a locking pin 16 and a suction mechanism. The positioning sleeve 14 is detachably sleeved at the bottom of the capillary viscometer 6, and vertical positioning holes are formed in the positions where the positioning sleeve 14 and the capillary viscometer 6 are opposite to each other. The U-shaped clamp block 15 is slidably installed on the inner side of the positioning sleeve 14 in the vertical direction, and the opening of the U-shaped clamp block 15 faces upward. The U-shaped clamp block 15 is elastic, and the bottom end of the capillary viscometer 6 is inserted into the U-shaped clamp block 15. The locking pin 16 is inserted into the U-shaped clamp block 15 in the horizontal direction, and the two ends of the locking pin 16 are located in the two positioning holes respectively. The suction mechanism is connected to the bottom of the positioning sleeve 14, and is used for suction connecting the positioning sleeve 14 and the inside of the bottom of the water bath cylinder 3 together. The suction mechanism comprises a connecting pipe 17, a suction disc 18, a plug rod 19, a sealing ring 20, a sealing rubber ring 21 and a compression spring 22. The connecting pipe 17 is rotationally connected to the middle position of the bottom of the positioning sleeve 14, and a connecting hole is formed in the position where the positioning sleeve 14 and the connecting pipe 17 are opposite to each other. The suction disc 18 is fixedly connected to the bottom of the connecting pipe 17, and the space at the bottom of the suction disc 18 is communicated with the inner side area of the connecting pipe 17. The plug rod 19 is fixedly connected to the bottom of the U-shaped clamp block 15 in a vertical manner, and is inserted into the connecting hole. The sealing ring 20 is fixedly connected to the inner wall of the connecting pipe 17, and the diameter of the plug rod 19 matches the inner diameter of the sealing ring 20. The sealing rubber ring 21 is fixedly sleeved on the plug rod 19, and when the bottom end of the plug rod 19 is inserted into the inner side of the sealing ring 20, the outer side surface of the sealing rubber ring 21 is tightly attached to the connecting position of the connecting pipe 17 and the positioning sleeve 14. The compression spring 22 is fixedly connected to the bottom of the sealing ring 20, and is coaxial with the sealing ring 20. The bottom of the compression spring 22 is fixedly connected with an annular rubber pad. The bottom of the U-shaped clamp block 15 is fixedly connected with an annular protrusion 23 which is coaxial with the sealing ring 20, and when the bottom of the U-shaped clamp block 15 is attached to the inner wall of the bottom of the positioning sleeve 14, the annular protrusion 23 can be inserted into the inner wall of the bottom of the positioning sleeve 14, so as to seal the connecting hole in cooperation with the sealing rubber ring 21. By setting the positioning assembly, first capillary viscometer 6 from bottom to top into the fixed cover 8, and through the locking element for locking, then the bottom of capillary viscometer 6 from top to bottom into the positioning sleeve 14, and with the bottom of capillary viscometer 6 gradually inserted into the positioning sleeve 14, the bottom of capillary viscometer 6 can be clamped by the U-shaped clamp block 15, when the bottom of capillary viscometer 6 and the bottom of the inner wall of U-shaped clamp block 15 are tightly together, the locking pin 16 is inserted into the U-shaped clamp block 15, so as to realize the connection operation of U-shaped clamp block 15 and capillary viscometer 6, then the capillary viscometer 6 with positioning sleeve 14 is inserted into the water bath cylinder 3 through the detection hole, when the threaded ring 7 contacts with the detection hole, the threaded ring 7 is screwed, so as to realize the connection operation of threaded ring 7 and sealing cover 4, and when the threaded ring 7 and the sealing cover 4 are connected together, the suction cup 18 at the bottom of the positioning sleeve 14 does not contact with the inner wall of the bottom of the water bath cylinder 3 at this time, then the fixed cover 8 is rotated to drive the capillary viscometer 6, so as to adjust the position to be detected of capillary viscometer 6, and in the process of adjustment, when the fixed strip 10 contacts with capillary viscometer 6, the fixed strip 10 can drive the rotating ring 9 to rotate together under the push of capillary viscometer 6; When the adjustment is completed, the capillary viscometer 6 can be fixed by hand, the adjusting screw 11 is screwed to gradually move the fixed cover 8 downward, in this process, the capillary viscometer 6 can drive the suction cup 18 at the bottom of the positioning sleeve 14 and the compression spring 22 to gradually approach the inner wall of the bottom of the water bath cylinder 3, when the suction cup 18 contacts with the inner wall of the bottom of the water bath cylinder 3, the suction cup 18 can gradually exhaust the air inside under the extrusion, so as to gradually be adsorbed together with the inner wall of the bottom of the water bath cylinder 3, and when the compression spring 22 contacts with the inner wall of the bottom of the water bath cylinder 3, the compression spring 22 can be gradually compressed under the pressure, and the reaction force of the compression spring 22 can make the inserting rod 19 stably inserted into the sealing ring 20, and the sealing rubber ring 21 can be located at the connection between the connecting pipe 17 and the positioning sleeve 14, so as to seal the top end of the connecting pipe 17, at the same time, with the downward movement of the U-shaped clamp block 15, the annular protrusion 23 at the bottom of the U-shaped clamp block 15 can be inserted into the bottom inner wall of the positioning sleeve 14, so as to cooperate with the sealing rubber ring 21 to improve the sealing effect of the top end of the connecting pipe 17, ensure that the suction cup 18 is stably adsorbed with the inner wall of the bottom of the water bath cylinder 3 and limits the bottom end of the capillary viscometer 6, so as to ensure that the capillary viscometer 6 is not affected by water flow fluctuation in the detection process, and improve the detection precision; When the test is completed, as the adjusting screw 11 is turned in the opposite direction, the fixing cover 8 can drive the capillary viscometer 6 to move upward under the pull of the adjusting screw 11, and as the capillary viscometer 6 moves downward, the capillary viscometer 6 can pull the U-shaped clamping block 15 upward through the locking pin 16, and as the U-shaped clamping block 15 moves upward, the insertion rod 19 and the sealing rubber ring 21 can be gradually moved out of the connecting tube 17 under the drive of the U-shaped clamping block 15. At the same time, the annular protrusion 23 can also be gradually separated from the bottom inner wall of the positioning sleeve 14. When the top end of the connecting tube 17 is opened, the water in the water bath 3 can enter the inner side of the suction cup 18 through the top end of the connecting tube 17, thereby cooperating with the upward elastic force of the compression spring 22, so that the suction cup 18 can be smoothly separated from the bottom inner wall of the water bath 3, thereby facilitating the smooth removal of the capillary viscometer 6 from the water bath 3. In addition, by providing a U-shaped clamp 15, when the bottom end of the capillary viscometer 6 is inserted into the positioning sleeve 14 or removed from the positioning sleeve 14, the elastic U-shaped clamp 15 can move with the capillary viscometer 6, thereby avoiding the bottom end of the capillary viscometer 6 from being subjected to the friction force of the inner wall of the positioning sleeve 14, thereby ensuring that the bottom end of the capillary viscometer 6 is not worn.

[0021] like Figures 2 to 5 As shown, the capillary viscometer 6 includes a thick section and a thin section, the top of the thin section is detachably connected to a rubber ball 31 for suction, the thick section and the thin section are connected together by a buffer ball 61, the locking block 12 is sleeved on the thin section, and a liquid storage ball 62 and a measuring ball 63 are provided on the thin section from top to bottom, and the liquid storage ball 62 and the measuring ball 63 are connected together by a capillary glass tube 64, the lubricating oil viscosity detection device also includes a heating rod 24, a stirring rod 25, a stirring blade 26, a motor 27, a protective cover 28 and a laser detection head 29, the heating rod 24 is vertically inserted into the sealing cover 4, the stirring rod 25 is vertically rotated and inserted into the sealing cover 4, the motor 27 is transmission-connected to the top of the stirring rod 25, and the motor 27 and the heating rod 24 are vertically inserted into the sealing cover 4, the stirring rod 25 is vertically rotated and inserted into the sealing cover 4, the motor 27 is transmission-connected to the top of the stirring rod 25, and the motor 27 and the heating rod 24 are transmission-connected to the top of the stirring rod 25. The rods 24 are all electrically connected to the viscosity tester 2. There are multiple groups of stirring blades 26. The multiple groups of stirring blades 26 are fixedly connected to the surface of the stirring rod 25 from top to bottom, and the stirring blades 26 can push the water downward. The protective cover 28 is sleeved on the outer periphery of the stirring rod 25. The side wall of the protective cover 28 is a hollow design, and a number of dense small holes are evenly opened through the bottom of the protective cover 28. The side surface of the protective cover 28 near the bottom is concave inward to form an annular groove. The number of laser detection heads 29 is the same as the number of detection holes, and multiple laser detection heads 29 are installed in the annular groove. The bottom of the protective cover 28 is rotatably installed with an impeller 30. The diameter of the impeller 30 matches the diameter of the bottom of the protective cover 28, and the blades of the impeller 30 are spiral. Before the lubricating oil is detected, the cap 8 can be rotated after the threaded ring 7 is screwed into the detection hole, so as to drive the capillary viscometer 6 to rotate, so that the capillary glass tube 64 on the capillary viscometer 6 can be kept opposite to the laser detection head 29 on the protective cover 28, and then the adjusting screw 11 is screwed, so that the bottom of the capillary viscometer 6 can be limited by the suction cup 18 and the compression spring 22. During detection, when the rubber ball 31 is used to suck the lubricating oil added into the capillary viscometer 6 from the inner wall position of the bottom of the capillary viscometer 6 into the liquid storage ball 62 and the measuring ball 63, the lubricating oil in the liquid storage ball 62 can be gradually dropped into the detection ball through the capillary glass tube 64 under the action of gravity. In this process, the laser detection head 29 can detect the time when the lubricating oil is completely dropped from the liquid storage ball 62 into the measuring ball 63, and then the detected data can be transmitted into the viscosity detector 2 for analysis, so as to obtain the viscosity value of the lubricating oil. When the viscosity of the lubricating oil at different temperatures is detected, the heating rod 24 and the motor 27 can be started by the viscosity detector 2. When the heating rod 24 is started, the heating rod 24 can heat the water in the water bath cylinder 3 to a specified temperature according to the need, so as to realize the viscosity detection of the lubricating oil at different temperatures. During the working of the heating rod 24, the stirring blade 26 can be driven to rotate by the stirring rod 25. When the stirring blade 26 rotates, the stirring blade 26 can push the water downward, so that the water can pass through the dense small holes at the bottom of the protective cover 28, so that the downward water flow can be evenly divided into small microflows, so as to reduce the vibration generated when the water is stirred. When the downward microflow acts on the impeller 30, the microflow can drive the impeller 30 to rotate slowly, so as to convert the kinetic energy of the water into the kinetic energy of the impeller 30, so as to reduce the influence of the water flow kinetic energy on the capillary viscometer 6, and improve the detection precision of the laser detection head 29.

[0022] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit them.

Claims

1. A lubricating oil viscosity detection device, characterized in that: The invention comprises a base (1), wherein a viscosity detector (2) and a water bath (3) are provided on the top of the base (1), a sealing cover (4) for sealing the water bath (3), a plurality of detection holes are provided on the top of the sealing cover (4), a heat-insulating cover (5) for sealing the detection holes is provided in the detection holes, or a detection assembly for detecting lubricating oil is provided, the detection assembly comprises a sealing member, a capillary viscometer (6), a locking member, and a positioning assembly, the sealing member is threadedly inserted into the detection hole, the capillary viscometer (6) is inserted through the sealing member, the locking member is connected to the sealing member, and the locking member is sleeved on one end of the capillary viscometer (6) for fixing the capillary viscometer (6), and the positioning assembly is connected between the bottom of the capillary viscometer (6) and the inner wall of the bottom of the water bath (3) for limiting the bottom end of the capillary viscometer (6).

2. The lubricating oil viscosity detection device according to claim 1, characterized in that: The sealing member comprises a threaded ring (7), a fixed cover (8), a rotating ring (9), a fixed bar (10) and an adjusting screw (11), wherein the threaded ring (7) is threadedly inserted into the detection hole, the fixed cover (8) is slidably inserted into the inner side of the threaded ring (7), the rotating ring (9) is rotatably connected to the inner wall of the top opening of the threaded ring (7), the fixed bar (10) is horizontally fixedly connected to the inner side of the rotating ring (9), and the fixed bar (10) is located in the gap between the two ends of the capillary viscometer (6), the adjusting screw (11) is vertically threaded and inserted into the fixed bar (10), and the bottom end of the adjusting screw (11) is rotatably connected to the middle position of the top of the fixed cover (8).

3. The lubricating oil viscosity detection device according to claim 2, characterized in that: The locking member comprises a locking block (12) and a locking screw (13); the locking block (12) is slidably sleeved on one end of the capillary viscometer (6); the bottom of the locking block (12) is detachably connected to the top of the fixed cover (8); the locking screw (13) is horizontally threadedly inserted into the side of the locking block (12), and the locking screw (13) is capable of contacting the surface of the capillary viscometer (6).

4. The lubricating oil viscosity detection device according to claim 3, characterized in that: The positioning assembly includes a positioning sleeve (14), a U-shaped clamping block (15), a locking pin (16) and an adsorption mechanism. The positioning sleeve (14) is detachably sleeved on the bottom of the capillary viscometer (6), and a vertical positioning hole is provided at a position where the positioning sleeve (14) and the gaps at both ends of the capillary viscometer (6) are directly opposite. The U-shaped clamping block (15) is slidably mounted on the inner side of the positioning sleeve (14) in a vertical direction, and the opening of the U-shaped clamping block (15) faces upward. The U-shaped clamping block (15) is elastic, and the bottom end of the capillary viscometer (6) is inserted into the U-shaped clamping block (15). The locking pin (16) is inserted into the U-shaped clamping block (15) in a horizontal direction, and the two ends of the locking pin (16) are respectively located in the two positioning holes. The adsorption mechanism is connected to the bottom of the positioning sleeve (14) and is used to adsorb and connect the positioning sleeve (14) to the bottom of the water bath (3).

5. The lubricating oil viscosity detection device according to claim 4, characterized in that: The adsorption mechanism includes a connecting tube (17), a suction cup (18), an insertion rod (19), a sealing ring (20), a sealing rubber ring (21) and a compression spring (22). The connecting tube (17) is rotatably connected to the middle position of the bottom of the positioning sleeve (14), and a connecting hole is provided through the position where the positioning sleeve (14) and the connecting tube (17) are opposite. The suction cup (18) is fixedly connected to the bottom of the connecting tube (17), and the bottom space of the suction cup (18) is communicated with the inner area of ​​the connecting tube (17). The insertion rod (19) is vertically fixedly connected to the bottom of the U-shaped clamp (15), and the insertion rod (19) is inserted into the connecting hole. The sealing ring (20) is fixedly connected to the inner wall of the connecting tube (17), and the diameter of the plug rod (19) matches the inner diameter of the sealing ring (20). The sealing rubber ring (21) is fixedly sleeved on the plug rod (19), and when the bottom end of the plug rod (19) is inserted into the inner side of the sealing ring (20), the outer side surface of the sealing rubber ring (21) is tightly attached to the connection between the connecting tube (17) and the positioning sleeve (14). The compression spring (22) is fixedly connected to the bottom of the sealing ring (20), and the compression spring (22) and the sealing ring (20) remain coaxial. The bottom of the compression spring (22) is fixedly connected with an annular rubber pad.

6. The lubricating oil viscosity detection device according to claim 5, characterized in that: The bottom of the U-shaped clamp (15) is fixedly connected to an annular protrusion (23) coaxial with the sealing ring (20), and when the bottom of the U-shaped clamp (15) is fitted together with the bottom inner wall of the positioning sleeve (14), the annular protrusion (23) can be inserted into the bottom inner wall of the positioning sleeve (14) to cooperate with the sealing rubber ring (21) to seal the connection hole.

7. The lubricating oil viscosity detection device according to claim 6, characterized in that: The lubricating oil viscosity detection device further comprises a heating rod (24), a stirring rod (25), a stirring blade (26), a motor (27), a protective cover (28) and a laser detection head (29), wherein the heating rod (24) is vertically inserted into the sealing cover (4), the stirring rod (25) is vertically rotated and inserted into the sealing cover (4), the motor (27) is transmission-connected to the top end of the stirring rod (25), and the motor (27) and the heating rod (24) are electrically connected to the viscosity detector (2), and the number of the stirring blades (26) is multiple. A plurality of stirring blades (26) are fixedly connected to the surface of the stirring rod (25) from top to bottom, and the stirring blades (26) can push water downward, the protective cover (28) is sleeved on the periphery of the stirring rod (25), the side wall of the protective cover (28) is hollowed out, and a plurality of dense small holes are evenly opened through the bottom of the protective cover (28), and the side surface of the protective cover (28) close to the bottom is concave inward to form an annular groove, the number of the laser detection heads (29) is the same as the number of the detection holes, and the plurality of laser detection heads (29) are installed in the annular groove.

8. The lubricating oil viscosity detection device according to claim 7, characterized in that: An impeller (30) is rotatably mounted on the bottom of the protective cover (28); the diameter of the impeller (30) matches the diameter of the bottom of the protective cover (28), and the blades of the impeller (30) are spiral-shaped.

9. The lubricating oil viscosity detection device according to claim 8, characterized in that: The capillary viscometer (6) comprises a thick section and a thin section, wherein the thick section and the thin section are connected together via a buffer ball (61), the locking block (12) is sleeved on the thin section, a liquid storage ball (62) and a measuring ball (63) are provided on the thin section from top to bottom, and the liquid storage ball (62) and the measuring ball (63) are connected together via a capillary glass tube (64), and a rubber ball (31) for air suction is detachably connected to the top end of the thin section.

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