A device for testing the dynamic loss of lubricating materials in high-temperature environments

Abstract

This invention belongs to the field of lubricant testing technology, and specifically relates to a device for testing the dynamic loss of lubricants in high-temperature environments. The device includes a lifting component, a constant temperature chamber, and a control component. The lifting component includes a motor; a lead screw is mounted on the upper part of the belt at the output end of the motor; two vertically arranged guide rods are mounted on one side of the lead screw; a horizontally arranged lifting plate is positioned between the guide rods and the lead screw; a tension sensor is connected to the lower part of the extended end of the lifting plate; a constant temperature chamber is located below the tension sensor, and a control component is located on the other side of the constant temperature chamber. This invention features the ability to perform multiple weighings, automatic testing, and more accurate measurement results. It can measure the loss of lubricants at different temperatures, providing precise test results and solving the problems of single test results and large errors in traditional methods.

Description

Technical Field

[0001] This utility model belongs to the field of lubricating material testing technology, specifically relating to a device for testing the dynamic loss of lubricating materials in high-temperature environments. Background Technology

[0002] During the use of mechanical equipment, the lubricating materials in its lubrication system will evaporate, causing a gradual decrease in the amount of lubricating material in the system, eventually affecting oil supply. Therefore, evaporation loss is an important indicator in the quality testing of lubricating materials. Currently, existing lubricating material evaporation loss testing devices weigh a certain weight of lubricating material and place it in an evaporator, which is then placed in a constant temperature bath at a specified temperature. Hot air is passed through the surface of the lubricating material for a fixed time, and the evaporation loss is calculated based on the weight loss of the lubricating material. However, existing testing devices have the following shortcomings: they only weigh the material after the test to calculate the evaporation loss, resulting in a single test result, which is not conducive to analyzing the amount of lubricating material loss at different time periods; after the test, the lubricating material needs to be cooled to room temperature before weighing, and some lubricating material will absorb moisture from the air during the cooling process, resulting in a large error in the test results. Utility Model Content

[0003] To address the problems existing in the background technology, this utility model proposes a dynamic loss testing device for lubricating materials in high-temperature environments. It features multiple weighing capabilities, automatic testing, more accurate measurement results, and the ability to measure the loss of lubricating materials at different temperatures, providing precise test results. This solves the problems of single test results and large errors in traditional methods.

[0004] The objective of this utility model can be achieved by the following technical solution: a device for testing the dynamic loss of lubricating materials in a high-temperature environment, comprising a lifting component, a constant temperature chamber, and a control component; the lifting component includes a motor; a lead screw is provided on the upper part of the belt at the output end of the motor; two vertically arranged guide rods are provided on one side of the lead screw; a horizontally arranged lifting plate is provided between the guide rods and the lead screw; a tension sensor device is connected to the lower part of the extended end of the lifting plate; a constant temperature chamber is provided below the tension sensor device, and a control component is provided on the other side of the constant temperature chamber.

[0005] The inner liner of the constant temperature chamber is provided with an insulation layer, an air inlet coil heating jacket and an evaporator from the outside to the inside; the evaporator is located in the middle of the constant temperature chamber and is connected to the tension sensor device on its upper part.

[0006] The control components include an air compressor and a control system connected to the constant temperature chamber; the control system also includes a temperature controller, a timer, and a flow meter; the heating pipe controlled by the temperature controller is connected to the heating jacket; the output air pipe of the air compressor is connected to the input port of the air inlet coil inside the constant temperature chamber.

[0007] The lower part of the tension sensor device is interconnected with the top cover of the constant temperature chamber via a connecting rod.

[0008] A vertically arranged support rod is connected to the center of the bottom surface of the constant temperature chamber cover; the end of the support rod is connected to the evaporator.

[0009] The length of the upright is less than the depth of the constant temperature chamber.

[0010] The output port of the air inlet coil is located at the center of the bottom surface of the constant temperature chamber, and the output port points towards the bottom surface of the evaporator.

[0011] A gap is also provided between the insulation layer and the inner wall of the constant temperature chamber.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) This testing device can weigh multiple times during the test, and the performance of the lubricating material can be fully understood through the final output lubricating material loss-time curve;

[0014] (2) The weighing of this testing device can be completed automatically without manual operation, which avoids the problem of the lubricating material absorbing moisture from the air during the cooling process, and the measurement results are more accurate;

[0015] (3) This test device can not only measure the loss at a fixed temperature, but also make the temperature in the constant temperature chamber cycle from temperature rise to holding for a fixed time to weighing and then from temperature rise to measuring the loss of lubricating material at different temperatures, which is beneficial for analyzing the limit state of lubricating material. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a top view of the present invention.

[0018] In the diagram: 1. Tension sensor device, 2. Lead screw, 3. Lifting plate, 4. Guide rod, 5. Motor, 6. Belt, 7. Constant temperature chamber, 8. Insulation layer, 9. Air inlet coil, 10. Evaporator, 11. Heating jacket, 12. Temperature controller, 13. Timer, 14. Flow meter, 15. Air compressor, 16. Control system, 17. Constant temperature chamber cover, 18. Upright pole. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0020] like Figures 1-2 As shown, a device for testing the dynamic loss of lubricating materials in a high-temperature environment includes a lifting component, a constant temperature chamber 7, and a control component. The lifting component includes a motor 5. A lead screw 2 is installed on the upper part of the belt 6 at the output end of the motor 5. Two vertically arranged guide rods 4 are installed on one side of the lead screw 2. The two guide rods 4 are used to ensure that the lifting plate 3 is in a horizontal state. A horizontally arranged lifting plate 3 is installed between the guide rods 4 and the lead screw 2. The motor 5 can drive the lead screw 2 to rotate through the belt 6, thereby causing the lifting plate 3 to rise and fall with the tension sensor device 1 to meet the testing requirements. The lower part of the extended end of the lifting plate 3 is connected to the tension sensor device 1. The lower part of the tension sensor device 1 is interconnected with the upper cover 17 of the constant temperature chamber through a connecting piece. The constant temperature chamber 7 is installed below the tension sensor device 1, and the control component is installed on the other side of the constant temperature chamber 7.

[0021] The control components include an air compressor 15 connected to the constant temperature chamber 7 and a control system 16; the control system 16 also includes a temperature controller 12, a timer 13 and a flow meter 14; the heating pipe controlled by the temperature controller 12 is connected to the heating jacket 11; the output air pipe of the air compressor 15 is connected to the input port of the air inlet coil 9 in the constant temperature chamber 7.

[0022] The inner liner of the constant temperature chamber 7 is provided with an insulation layer 8, an air inlet coil 9, a heating jacket 11, and an evaporator 10 arranged sequentially from the outside to the inside. The evaporator 10 is located in the middle of the constant temperature chamber 7 and connected to the tension sensor device 1 on its upper part. The output end of the air inlet coil 9 is located at the center of the bottom surface of the constant temperature chamber, and the output end points to the bottom surface of the evaporator. A vertically arranged upright rod 18 is connected to the center of the bottom surface of the constant temperature chamber cover 17. The end of the upright rod 18 is connected to the evaporator 10. The length of the upright rod 18 is less than the depth of the constant temperature chamber 7. This arrangement ensures that the evaporator 10 is suspended in the constant temperature chamber 7. That is, when the lifting plate 3 descends, it drives the evaporator 10 back to its initial position and fits against the top cover of the constant temperature chamber 7, so that the constant temperature chamber 7 is in a sealed state. There is also a gap between the insulation layer 8 and the inner wall of the constant temperature chamber 7. The purpose of this gap is to better achieve the insulation effect and avoid excessive heat conduction, which would result in heat loss and reduce the constant temperature effect of the constant temperature chamber.

[0023] In practical use, the motor 5 drives the lead screw 2 to rotate via the belt 6, thereby causing the lifting plate 3, carrying the tension sensor device 1, to rise and fall. Two guide rods ensure the lifting plate 3 is horizontal. After the testing device is adjusted to a horizontal position, the starting temperature is set via the control system 16. Once the temperature reaches the starting temperature, the air compressor 15 is turned on to introduce air. The airflow rate can be adjusted via the flow meter 14 on the control system 16. Then, a certain weight of lubricating material is weighed and placed in the evaporator 10. The evaporator 10 is placed entirely in the constant temperature chamber 7, with its upper part connected to the tension sensor device 1, and then sealed. The constant temperature chamber 7 is set with the test temperature and time to start the test; when the lifting plate 3 rises to a certain position, the lower part of the tension sensor device 1 contacts the upper part of the evaporator 10, causing the entire evaporator 10 to rise and remain suspended. The control system records the overall weight of the evaporator 10. After the weighing is completed, the lifting plate 3 descends and the evaporator 10 returns to its initial position and fits against the top cover of the constant temperature chamber 7, so that the constant temperature chamber 7 is in a sealed state. By controlling the time and temperature, this test device can weigh the evaporator multiple times during the test and finally output the lubricant loss amount-time curve. It can also output the lubricant loss amount-temperature curve by controlling the temperature to rise continuously.

[0024] This device, through multiple automatic weighings, can monitor the dynamic loss of lubricating materials in high-temperature environments in real time, transforming traditional single numerical results into continuous loss curves, thus more comprehensively reflecting the loss state of lubricating materials at different time points. This device can not only measure the evaporation loss of lubricating materials at constant temperatures over a specific time period, but also simulate environments with gradually increasing temperatures, monitoring the evaporation loss of lubricating materials under dynamic temperature changes in real time. The automatic weighing function reduces errors caused by human intervention, improves the accuracy and repeatability of the test, and makes the test results more reliable, providing more accurate data support for the performance evaluation of lubricating materials.

[0025] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A device for testing the dynamic loss of lubricating materials in a high-temperature environment, comprising a lifting component, a constant temperature chamber (7), and a control component; characterized in that: The lifting component includes a motor (5); a lead screw (2) is provided on the upper part of the belt (6) at the output end of the motor (5); two vertically arranged guide rods (4) are provided on one side of the lead screw (2); a horizontally arranged lifting plate (3) is provided between the guide rods (4) and the lead screw (2); a tension sensor device (1) is connected to the lower part of the extended end of the lifting plate (3); a constant temperature chamber (7) is provided below the tension sensor device (1), and a control component is provided on the other side of the constant temperature chamber (7).

2. The device for testing the dynamic loss of lubricating materials in a high-temperature environment according to claim 1, characterized in that: The inner liner of the constant temperature chamber (7) is provided with an insulation layer (8), an air inlet coil (9), a heating jacket (11) and an evaporator (10) in sequence from the outside to the inside; the evaporator (10) is set in the middle of the constant temperature chamber (7) and connected to the tension sensor device (1) on its upper part.

3. The device for testing the dynamic loss of lubricating materials in a high-temperature environment according to claim 1, characterized in that: The control components include an air compressor (15) and a control system (16) connected to the constant temperature chamber (7); the control system (16) also includes a temperature controller (12), a timer (13) and a flow meter (14); the heating pipeline controlled by the temperature controller (12) is connected to the heating jacket (11); the output air pipe of the air compressor (15) is connected to the input port of the air inlet coil (9) in the constant temperature chamber (7).

4. The device for testing the dynamic loss of lubricating materials in a high-temperature environment according to claim 2, characterized in that: The lower part of the tension sensor device (1) is interconnected with the upper cover (17) of the constant temperature chamber via a connecting rod.

5. The device for testing the dynamic loss of lubricating materials in a high-temperature environment according to claim 4, characterized in that: A vertically arranged upright rod (18) is connected to the center of the bottom surface of the cover (17) of the constant temperature chamber; the end of the upright rod (18) is connected to the evaporator (10).

6. The device for testing the dynamic loss of lubricating materials in a high-temperature environment according to claim 5, characterized in that: The length of the upright (18) is less than the depth of the constant temperature chamber (7).

7. The device for testing the dynamic loss of lubricating materials in a high-temperature environment according to claim 2, characterized in that: The output port of the air inlet coil (9) is located at the center of the bottom surface of the constant temperature chamber (7), and the output port points to the bottom surface of the evaporator (10).

8. The device for testing the dynamic loss of lubricating materials in a high-temperature environment according to claim 2, characterized in that: A gap is also provided between the insulation layer (8) and the inner wall of the constant temperature box (7).

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