Evaporation loss tester for lubricating oil and lubricating grease

Abstract

The utility model relates to the technical field of measuring instruments, and discloses a lubricating oil and lubricating grease evaporation loss measuring instrument which comprises a measuring instrument body, second connecting covers are arranged on the two sides of the interior of the measuring instrument body, the inner wall of each second connecting cover is in threaded connection with a containing vessel, a heating assembly is arranged on the outer wall of each containing vessel, and the heating assemblies are arranged on the inner wall of the measuring instrument body. The heating assembly comprises a plurality of heating plates, a metal heating groove is slidably connected to the outer wall of each second connecting cover, supporting rings are rotatably connected to the two sides of the interior of the tester body, a gear ring is fixedly connected to the top of each supporting ring, and the heating plates are fixedly connected to the top of each gear ring; and gears are arranged on the two sides in the tester body. According to the device disclosed by the utility model, the heating plate is driven by the electric motor to circumferentially rotate on the outer wall of the metal heating groove, and heat is uniformly transferred to the outer wall of the metal heating groove, so that the heat borne by a sample in the accommodating vessel is more uniform, and the accuracy of the detection effect of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of tester, especially relates to lubricating oil and grease evaporation loss tester. BACKGROUND

[0002] The lubricating oil and grease evaporation loss tester is a kind of important instrument equipment specially used for accurately determining the evaporation loss amount of lubricating oil and grease under specific conditions.In the industrial production and scientific research field, accurately grasping the evaporation characteristics of lubricating oil and grease has extremely critical significance for optimizing product formula, improving product quality and ensuring the normal operation of mechanical equipment.The tester can simulate the temperature, airflow and other conditions in actual working conditions, provide reliable data support for evaluating the evaporation performance of oil products, help to develop high-performance, long-life lubricating products, reduce lubrication failure problems caused by evaporation loss, thereby improve the reliability of mechanical equipment, reduce maintenance cost and prolong service life.

[0003] The existing lubricating oil and grease evaporation loss tester is generally composed of a tester body, a heating device, a sample container and related temperature control and timing components.Working time, the appropriate amount of lubricating oil or grease sample is placed in the sample container, then the sample is heated by the heating device, the heating device generally uses fixed-position heating elements, such as heating wire or heating plate, and the heat is transferred to the sample container and the sample in it through heat conduction.At the same time, the temperature control component is used to maintain the stability of the heating temperature, and in the heating process, the airflow is generated by using air pump and other equipment, so that the evaporated sample gas is carried away with the airflow, and the evaporation loss is calculated by measuring the mass change or other related parameters of the sample before and after heating.

[0004] However, there are certain limitations in the prior art.During the heating process, the heating component position is fixed, although some testers use metal heat conduction structure to disperse heat, but it is still difficult to avoid temperature difference in the sample, which will cause the evaporation rate of different parts of the sample to be inconsistent, resulting in deviation of the final evaporation loss data, and the real evaporation performance of the sample under actual uniform heating condition cannot be accurately reflected, which seriously affects the accuracy of the evaluation of the evaporation characteristics of lubricating oil and grease, and therefore the lubricating oil and grease evaporation loss tester is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a lubricating oil and grease evaporation loss tester, which aims to improve the problem that the heating component position is relatively fixed during the heating and evaporation process of the sample, although the heat is dispersed by using the metal heat conduction principle of the metal heating tank, but there is still temperature difference, which affects the sample detection effect.

[0006] In order to achieve the above object, the utility model adopts the following technical scheme:

[0007] The lubricating oil and grease evaporation loss tester comprises a tester body, two connecting covers two are arranged on the both sides of the tester body, a holding dish is threadedly connected to the inner wall of each connecting cover two, a heating assembly is arranged on the outer wall of each holding dish, a sealing assembly is arranged on the outer wall of the tester body, and the sealing assembly comprises a sealing ring.

[0008] The heating assembly comprises a plurality of heating plates, the heating plates are arranged on the outer wall of the holding dish, a metal heating groove is slidably connected to the outer wall of each connecting cover two, the bottom of the metal heating groove is fixedly connected to the inner wall bottom of the tester body, a supporting ring is rotatably connected to the both sides of the tester body, a tooth ring is fixedly connected to the top of each supporting ring, the outer wall of each tooth ring is rotatably connected to the metal heating groove, a gear is arranged on the both sides of the tester body, an electric motor is fixedly connected to the inner wall bottom of the tester body, the output end of the electric motor is fixedly connected to the bottom of the gear on one side, a supporting column is fixedly connected to the bottom of the gear on the other side, the supporting column is rotatably connected to the inside of the tester body, the gears on the both sides are meshed with each other, the gears and the tooth rings are meshed with each other, and a plurality of heating plates are fixedly connected to the top of each tooth ring.

[0009] Further description is made to the technical scheme:

[0010] A fixing ring is fixedly connected to the top of the tester body on the both sides, a connecting rod is arranged on the inner wall of each fixing ring, a connecting cover one is fixedly connected to the top of each connecting rod, the connecting cover one is attached to the top of the fixing ring, and the other end of each connecting rod is fixedly connected to the top of the connecting cover two.

[0011] Further description is made to the technical scheme:

[0012] A display screen is fixedly connected to the inside of the tester body, a gas pump is fixedly connected to one side of the tester body, and a connecting pipe is fixedly connected to the inside of the gas pump.

[0013] Further description is made to the technical scheme:

[0014] The sealing assembly comprises a sealing ring, the sealing ring is arranged on the outer wall of the tester body, and a connecting ring is fixedly connected to one end of the connecting pipe.

[0015] Further description is made to the technical scheme:

[0016] A connecting box is slidably connected to the outer wall of the connecting ring, the outer wall of the connecting box is fixedly connected to one side of the tester body, and the outer wall of the sealing ring is fixedly connected to the inner wall of the connecting box.

[0017] As a further description of the above technical solutions:

[0018] The connecting box is internally slidably connected with a clamping column, one side of the clamping column is provided with a sliding block, and the sliding block is slidably connected in the interior of the connecting box.

[0019] As a further description of the above technical solutions:

[0020] One side of the sliding block is fixedly connected with a plurality of connecting columns, an outer wall of each connecting column is slidably connected with a fixing column, an outer wall of each fixing column is fixedly connected with a fixing block, and one side of the fixing block is fixedly connected to the outer wall of the connecting box.

[0021] As a further description of the above technical solutions:

[0022] An inner wall of each fixing column is provided with a spring, one end of each spring is fixedly connected to the outer wall of the connecting column, and the other end of each spring is fixedly connected to the inner wall of the fixing column.

[0023] The utility model has the advantages of the following beneficial effects:

[0024] In the utility model, the heating plate is driven by the electric motor to perform circumferential rotating movement on the outer wall of the metal heating groove, so that heat is uniformly transmitted to the outer wall of the metal heating groove, the heat borne by the sample in the holding dish is more uniform, the problem that the position of the heating component is relatively fixed during the heating and evaporation of the sample by the equipment, although the heat is dispersed by the metal heat conductivity principle of the metal heating groove, but there is still temperature difference, which affects the sample detection effect, and the precision of the equipment detection effect is improved.

[0025] In the utility model, the sealing ring outer wall is extruded by the connecting ring, and the clamping between the clamping column and the inner wall of the connecting ring is utilized to fix the position of the connecting ring, so that the connecting ring always keeps good extrusion effect on the sealing ring, the problem that the connecting ring and the sealing ring are not tightly connected due to the shaking of the outer wall or other factors during the use of the equipment, gaps are generated, and gas leakage is caused is solved, and the sealing property of the equipment is enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 A three-dimensional schematic view of a lubricating oil and grease evaporation loss tester is provided for the utility model;

[0027] Figure 2 A tester body internal structure schematic view of a lubricating oil and grease evaporation loss tester is provided for the utility model;

[0028] Figure 3The utility model provides a heating plate structure schematic view of lubricating oil and lubricating grease evaporation loss measuring instrument.

[0029] Figure 4 The utility model provides a card post structure schematic view of lubricating oil and lubricating grease evaporation loss measuring instrument.

[0030] Legend:

[0031] 1, measuring instrument body, 2, air pump, 3, display screen, 4, connecting cover one, 5, fixed ring, 6, connecting rod, 7, connecting cover two, 8, holding dish, 9, metal heating groove, 10, heating plate, 11, gear ring, 12, support ring, 13, gear, 14, support column, 15, electric motor, 16, connecting box, 17, sliding block, 18, connecting column, 19, spring, 20, fixed column, 21, fixed block, 22, card post, 23, connecting pipe, 24, connecting ring, 25, sealing ring. Specific implementation

[0032] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the protection scope of the utility model.

[0033] Reference Figures 1-3 An embodiment provided by the utility model: lubricating oil and lubricating grease evaporation loss measuring instrument, including measuring instrument body 1, measuring instrument body 1 inside both sides are provided with connecting cover two 7, and each connecting cover two 7 inner wall is all provided with holding dish 8 with screw thread connection, and each holding dish 8 outer wall is provided with heating assembly, and measuring instrument body 1 outer wall is provided with sealing assembly.

[0034] The heating assembly comprises a plurality of heating plates 10 located on the outer wall of the holding pan 8, which generates heat by heating to provide a stable and uniform heat source for the lubricating oil or grease in the holding pan 8, so as to evaporate to determine the evaporation loss. The outer wall of each connecting cover two 7 is slidably connected with a metal heating groove 9, and the bottom of the metal heating groove 9 is fixedly connected to the inner wall of the bottom of the measuring instrument body 1. The metal heating groove 9 can accommodate the connecting cover two 7 and related parts, and its metal material is conducive to heat conduction and uniform distribution, creating a stable heat environment for the internal heating process. The measuring instrument body 1 is rotatably connected with a support ring 12 on both sides of the inside, which is used to support the tooth ring 11 to enable it to rotate stably in the measuring instrument body 1. The top of each support ring 12 is fixedly connected with a tooth ring 11, which is engaged with a gear 13. Under the drive of the electric motor 15, the heating plate 10 rotates, so that the heating is more uniform and comprehensive. Each tooth ring 11 is rotatably connected to the outer wall of the metal heating groove 9. The measuring instrument body 1 is provided with a gear 13 on both sides of the inside. The inner wall of the measuring instrument body 1 is fixedly connected with an electric motor 15. The output end of the electric motor 15 is fixedly connected to the bottom of one side of the gear 13. The bottom of the other side of the gear 13 is fixedly connected with a support column 14, which is rotatably connected to the inside of the measuring instrument body 1. The support column 14 supports the other side of the gear 13 to ensure its stability. The gears 13 on both sides are engaged with each other. Each gear 13 is engaged with the tooth ring 11. The top of each tooth ring 11 is fixedly connected with a plurality of heating plates 10. The top of the measuring instrument body 1 is fixedly connected with a fixed ring 5. The fixed ring 5 is used to fix the position of the connecting rod 6. The inner wall of each fixed ring 5 is provided with a connecting rod 6. The top of each connecting rod 6 is fixedly connected with a connecting cover one 4. The connecting cover one 4 is in close contact with the top of the fixed ring 5. The connecting cover one 4 can close the opening at the top of the measuring instrument to prevent heat loss and impurities from entering. The other end of each connecting rod 6 is fixedly connected to the top of the connecting cover two 7. The connecting cover two 7 cooperates with the metal heating groove 9 and other components to ensure the stability of the internal heating and measuring environment.

[0035] Specifically, during the heating process of the sample, first, the electric motor 15 is started, and the two sides of the gear 13 are driven by the output end of the electric motor 15 to rotate in opposite directions. The gear 13 rotates while driving the gear ring 11 to rotate synchronously. The rotation of the gear ring 11 further acts on the heating plate 10, so that the heating plate 10 makes a circular motion along the outer wall of the metal heating groove 9. This ensures that the outer wall of the metal heating groove 9 can uniformly absorb heat, avoids the adverse effects caused by local overheating or uneven heat distribution, improves the heating effect, and makes the heat more evenly transmitted to the metal heating groove 9, further enhancing the heating efficiency of the sample in the inner part of the holding dish 8. Since the heat distribution during the heating process is more uniform, the sample can obtain a more stable temperature environment during the heating process, which not only improves the accuracy of the determination of the evaporation loss of the sample, but also reduces the error caused by temperature fluctuations.

[0036] With reference to Figure 1 and Figure 4The display screen 3 is fixedly connected inside the body 1 of the tester, and is used to visually display various parameters of the tester, such as temperature setting value, time, and measured data of evaporation loss, so as to facilitate the operator to real-time understand the test process and result. The air pump 2 is fixedly connected to one side of the body 1 of the tester, and is used to provide stable airflow. When the evaporation loss of lubricating oil or lubricating grease is measured, the evaporated gas is carried out with the airflow, so as to facilitate subsequent measurement and analysis. The connecting pipe 23 is fixedly connected inside the air pump 2, and is used as a channel for transmitting gas, so as to connect the air pump 2 with other related components and realize the delivery of airflow. The sealing assembly includes the sealing ring 25, which is located on the outer wall of the body 1 of the tester, and is mainly used to prevent gas leakage, ensure the air tightness inside the tester, and ensure the stability of airflow and the accuracy of measurement during the test process. The connecting ring 24 is fixedly connected to one end of the connecting pipe 23, and is used to facilitate the connection and fixation of the connecting pipe 23 with other components. The connecting box 16 is slidingly connected to the outer wall of the connecting ring 24, and provides a space for protecting and fixing the internal sealing and connecting components. The connecting box 16 is fixedly connected to one side of the body 1 of the tester, and the sealing ring 25 is fixedly connected to the inner wall of the connecting box 16. The clamping columns 22 are slidingly connected inside the connecting box 16. The clamping columns 22 are provided with the sliding blocks 17 on one side. The sliding blocks 17 are slidingly connected inside the connecting box 16, and can slide in the connecting box 16 to adjust or transmit force. The sliding blocks 17 are fixedly connected with the connecting columns 18 on one side. The connecting columns 18 transmit the force or displacement of the sliding blocks 17. The fixed columns 20 are slidingly connected to the outer wall of each connecting column 18, and are used to guide and limit the sliding of the connecting columns 18. The fixed blocks 21 are fixedly connected to the outer wall of each fixed column 20, and enhance the stability and fixation effect of the fixed columns 20. The fixed blocks 21 are fixedly connected to the outer wall of the connecting box 16 on one side. The springs 19 are arranged inside each fixed column 20, and can reset or maintain a certain pre-tightening force of the connecting columns 18 and other components within a certain range by using the elastic force. One end of each spring 19 is fixedly connected to the outer wall of the connecting column 18, and the other end of each spring 19 is fixedly connected to the inside of the fixed column 20.

[0037] Specifically, during the use of the device, the operator needs to pull the sliding block 17 to move it away from one side of the clamping column 22 to provide the necessary space for the movement of the clamping column 22. With the displacement of the sliding block 17, the connecting column 18 slides inside the fixed column 20, and through this process, the spring 19 is compressed. After the spring 19 is squeezed, its reaction force will play an important role in the subsequent process. During the sliding process, the connecting ring 24 on one end of the connecting pipe 23 is pushed into the connecting box 16. The relative movement between the connecting ring 24 and the sealing ring 25 will force the sealing ring 25 to be compressed, thereby effectively sealing the connection between the connecting ring 24 and the connecting box 16. At this time, the outer wall of the connecting ring 24 exerts a squeezing force on the clamping column 22 by contacting it, so that the clamping column 22 can smoothly slide inside the connecting box 16. When the pushing force of the sliding block 17 is released, the spring 19 will quickly rebound, thereby pushing the sliding block 17 to re-exert a squeezing force on the clamping column 22. This action causes the clamping column 22 to be clamped into the groove inside the connecting ring 24, thereby fixing the position of the connecting ring 24 and ensuring that the connecting ring 24 always exerts sufficient squeezing force on the sealing ring 25. This prevents the connecting ring 24 from loosening and causing gaps between the connecting ring 24 and the sealing ring 25, thereby avoiding gas leakage problems and ensuring that the sealing performance of the device remains stable during long-term use.

[0038] Working principle: During the use of the device, pull the sliding block 17 to move it away from one side of the clamping column 22 to provide the necessary space for the movement of the clamping column 22. With the displacement of the sliding block 17, the connecting column 18 slides inside the fixed column 20, and through this process, the spring 19 is compressed. After the spring 19 is squeezed, its reaction force will play an important role in the subsequent process. During the sliding process, the connecting ring 24 on one end of the connecting pipe 23 is pushed into the connecting box 16. The relative movement between the connecting ring 24 and the sealing ring 25 will force the sealing ring 25 to be compressed, thereby effectively sealing the connection between the connecting ring 24 and the connecting box 16. At this time, the outer wall of the connecting ring 24 exerts a squeezing force on the clamping column 22 by contacting it, so that the clamping column 22 can smoothly slide inside the connecting box 16. When the pushing force of the sliding block 17 is released, the spring 19 will quickly rebound, thereby pushing the sliding block 17 to re-exert a squeezing force on the clamping column 22. This action causes the clamping column 22 to be clamped into the groove inside the connecting ring 24, thereby fixing the position of the connecting ring 24 and ensuring that the connecting ring 24 always exerts sufficient squeezing force on the sealing ring 25. This prevents the connecting ring 24 from loosening and causing gaps between the connecting ring 24 and the sealing ring 25, thereby avoiding gas leakage problems and ensuring that the sealing performance of the device remains stable during long-term use.

[0039] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A lubricating oil and grease evaporation loss tester comprising a tester body (1), characterised in that: Both sides of the assay body (1) are provided with a connecting cover two (7), the inner wall of each connecting cover two (7) is threadedly connected with a holding dish (8), the outer wall of each holding dish (8) is provided with a heating assembly, and the outer wall of the assay body (1) is provided with a sealing assembly. The heating assembly comprises a plurality of heating plates (10), the heating plates (10) are located on the outer wall of the holding dish (8), the outer wall of each connecting cover two (7) is slidably connected with a metal heating groove (9), the bottom of the metal heating groove (9) is fixedly connected to the inner wall bottom of the assay body (1), both sides of the assay body (1) are rotatably connected with a support ring (12), the top of each support ring (12) is fixedly connected with a gear ring (11), each gear ring (11) is rotatably connected to the outer wall of the metal heating groove (9), both sides of the assay body (1) are provided with a gear (13), the inner wall bottom of the assay body (1) is fixedly connected with an electric motor (15), the output end of the electric motor (15) is fixedly connected to the bottom of one side of the gear (13), the bottom of the other side of the gear (13) is fixedly connected with a support column (14), the support column (14) is rotatably connected to the inside of the assay body (1), the gears (13) on both sides are engaged with each other, and each gear (13) is engaged with the gear ring (11), and a plurality of heating plates (10) are fixedly connected to the top of each gear ring (11).

2. The lubricating oil and grease evaporation loss tester according to claim 1, characterized in that: Both sides of the top of the assay body (1) are fixedly connected with a fixed ring (5), the inner wall of each fixed ring (5) is provided with a connecting rod (6), the top of each connecting rod (6) is fixedly connected with a connecting cover one (4), the connecting cover one (4) is attached to the top of the fixed ring (5), and the other end of each connecting rod (6) is fixedly connected to the top of the connecting cover two (7).

3. The lubricating oil and grease evaporation loss tester according to claim 1, characterized in that: The assay body (1) is fixedly connected with a display screen (3) inside, one side of the assay body (1) is fixedly connected with an air pump (2), and the inside of the air pump (2) is fixedly connected with a connecting pipe (23).

4. A lubricating oil and grease evaporation loss tester according to claim 3, characterised in that: The sealing assembly comprises a sealing ring (25), the sealing ring (25) is located on the outer wall of the assay body (1), and one end of the connecting pipe (23) is fixedly connected with a connecting ring (24).

5. The lubricating oil and grease evaporation loss tester according to claim 4, characterized in that: The outer wall of the connecting ring (24) is slidably connected with a connecting box (16), the outer wall of the connecting box (16) is fixedly connected to one side of the assay body (1), and the outer wall of the sealing ring (25) is fixedly connected to the inner wall of the connecting box (16).

6. The lubricating oil and grease evaporation loss tester according to claim 5, characterized in that: The inside of the connecting box (16) is slidably connected with a clamping column (22), one side of the clamping column (22) is provided with a sliding block (17), and the sliding block (17) is slidably connected to the inside of the connecting box (16).

7. A lubricating oil and grease evaporation loss tester according to claim 6, characterised in that: The slider (17) is fixedly connected with a plurality of connecting columns (18) on one side, the outer wall of each connecting column (18) is slidably connected with a fixed column (20), the outer wall of each fixed column (20) is fixedly connected with a fixed block (21), and the fixed block (21) is fixedly connected to the outer wall of the connecting box (16) on one side.

8. The lubricating oil and grease evaporation loss tester according to claim 7, characterized in that: The inner part of each fixed column (20) is provided with a spring (19), one end of each spring (19) is fixedly connected to the outer wall of the connecting column (18), and the other end of each spring (19) is fixedly connected to the inner part of the fixed column (20).

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