Lubricating oil tank oil level gauge capable of eliminating influence of oil temperature
By using a temperature control belt inside the casing and a motor-driven lubricating oil tank level gauge structure, the impact of oil temperature changes on measurement is solved, achieving efficient and reliable oil level monitoring, adapting to different oil tank sizes, and ensuring equipment safety.
Patent Information
- Application Number
- CN202511524398.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-23
- Publication Date
- 2026-01-13
AI Technical Summary
Existing lubricating oil tank level gauges cannot eliminate the influence of temperature changes when the oil temperature changes, leading to measurement deviations, misleading operators, and causing equipment safety hazards.
A structure including a cover, a support plate, a temperature control belt, a hydraulic cylinder, and a motor was designed. The oil temperature is controlled by the temperature control belt to avoid the effects of thermal expansion and contraction. The length of the cover is adjusted by combining a telescopic cover and a limit rod to adapt to different oil tank sizes. The motor drives the temperature control belt to rotate cyclically to achieve oil temperature control.
It improves the accuracy of oil level measurement and the adaptability of the equipment, ensuring the reliability and accuracy of oil level monitoring under complex working conditions, and avoiding measurement errors caused by oil temperature changes.
Smart Images

Figure CN121323748A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of oil level gauges, and particularly to a lubricating oil tank level gauge that eliminates the influence of oil temperature. Background Technology
[0002] Lubricating oil level monitoring is crucial for ensuring the safe and stable operation of large mechanical equipment, such as generator sets and steam turbines. Accurate oil level data is essential for ensuring the normal operation of the lubrication system and preventing equipment wear and malfunctions. However, in actual operating environments, the temperature of lubricating oil can change significantly. Fluctuations in oil temperature cause thermal expansion and contraction, directly affecting the oil level gauge readings and resulting in discrepancies between the displayed value and the actual oil level. This temperature-induced measurement deviation can mislead operators, potentially leading to false low-oil alarms or masking a true drop in oil level, posing serious safety hazards to the equipment.
[0003] Currently, most common oil level gauges are mechanical or intuitive in structure. Although simple in structure, they generally lack temperature compensation, making it difficult to eliminate the impact of oil temperature fluctuations. While some solutions using electronic sensors can perform temperature sampling and calculation compensation, their structure is complex and costly, and their reliability and stability face challenges in harsh industrial environments with high vibration and pollution.
[0004] Therefore, there is an urgent need to design a lubricating oil tank level gauge that eliminates the influence of oil temperature to solve the problem of oil temperature effects. Summary of the Invention
[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a lubricating oil tank level gauge that eliminates the influence of oil temperature.
[0006] This invention is achieved through the following technical solution:
[0007] A lubricating oil tank level gauge that eliminates the influence of oil temperature includes a cover and a support plate. The support plate is located directly above the cover. A support column is fixedly installed on the upper surface of the support plate. A motor is fixedly installed at the top of the support column. A turntable is fixedly mounted on the motor shaft of the motor. A temperature control belt is fitted on the turntable. The level gauge is fitted in the middle of the support plate. Connecting blocks are symmetrically installed on both sides of the cover. A hydraulic cylinder is installed between the connecting blocks and the support plate. A telescopic cover is set in the middle of the inside of the cover. A filter screen is set at the bottom of the cover. A limit rod is transversely inserted through the bottom of the inside of the cover, so that the temperature control belt is fitted outside the limit rod.
[0008] Preferably, the temperature control strip is a flat strip with a sandwich structure, and the turntable has a groove corresponding to the temperature control strip. The turntable has a circular structure. The sandwich structure of the temperature control strip facilitates the control of oil temperature and avoids the effects of thermal expansion and contraction.
[0009] Preferably, the hydraulic cylinder is an electric hydraulic cylinder, which is fixedly mounted on the pallet. The pallet has a disc structure, and the hydraulic cylinder can control the height of the pallet for easy adjustment.
[0010] Preferably, the telescopic cover is made of carbon steel and has a pleated structure. The telescopic cover is connected to the cover cylinder, and the filter screen is connected to the telescopic cover. The filter screen has a mesh structure. The telescopic cover allows for adjustment and control of the overall length of the cover cylinder to accommodate mailboxes of various sizes.
[0011] Preferably, the limiting rod is a cylindrical structure, with both ends of the limiting rod fixedly installed on the inner wall of the cover. The outer surface of the limiting rod is smooth, and a gap is left between the temperature control band and the limiting rod to ensure that the temperature control band can move flexibly.
[0012] Preferably, the oil level gauge is made of transparent material, and scale lines are provided on the outside of the oil level gauge. The scale lines are clearly visible, making it easy to observe changes in the oil level.
[0013] Preferably, a sealing ring is provided at the top of the cover, and the sealing ring is made of a high-temperature resistant material.
[0014] Preferably, the motor is a stepper motor, and the motor is connected to an external power source through a controller.
[0015] Compared with the prior art, the beneficial effects of the present invention are:
[0016] This invention utilizes a cover to enclose a specific area of lubricating oil, allowing for localized oil level measurement. A temperature control belt regulates the oil temperature within the cover, mitigating the effects of thermal expansion and contraction. This temperature control improves measurement accuracy and prevents interference with oil level readings. Furthermore, a motor drives the temperature control belt, which, with a limiting rod, circulates within the cover, further controlling the oil temperature. The telescopic cover allows for adjustment of the overall length to accommodate different oil tank sizes, enhancing adaptability.
[0017] In summary, this invention fully considers various complex working conditions in practical applications and effectively eliminates the influence of oil temperature through multiple structural optimizations, providing an efficient and reliable solution for oil level monitoring in lubricating oil tanks. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of the present invention.
[0019] Figure 2 This is a top view of the cover and the limiting rod of the present invention.
[0020] Figure 3 This is a schematic diagram of the invention in conjunction with the fuel tank.
[0021] Labeling Explanation: 1. Turntable, 2. Motor, 3. Temperature Control Belt, 4. Support Column, 5. Oil Level Gauge, 6. Support Plate, 7. Hydraulic Cylinder, 8. Connecting Block, 9. Cover, 10. Telescopic Cover, 11. Filter Screen, 12. Limiting Rod. Detailed Implementation
[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0023] Please see Figure 1-3 The present invention provides a technical solution:
[0024] A lubricating oil tank level gauge that eliminates the influence of oil temperature includes a cover 9 and a support plate 6. The support plate 6 is located directly above the cover 9. A support column 4 is fixedly installed on the upper surface of the support plate 6. A motor 2 is fixedly installed at the top of the support column 4. A turntable 1 is fixedly mounted on the motor shaft of the motor 2. A temperature control band 3 is fitted on the turntable 1. An oil level gauge 5 is fitted in the middle of the support plate 6. Connecting blocks 8 are symmetrically installed on both sides of the cover 9. A hydraulic cylinder 7 is installed between the connecting blocks 8 and the support plate 6. A telescopic cover 10 is set in the middle of the inside of the cover 9. A filter screen 11 is set at the bottom of the cover 9. A limit rod 12 is inserted horizontally through the bottom of the inside of the cover 9, so that the temperature control band 3 is fitted outside the limit rod 12.
[0025] The temperature control strip 3 is a flat strip with a sandwich layer. The turntable 1 has a groove corresponding to the temperature control strip 3 and is a disc structure.
[0026] The hydraulic cylinder 7 is an electric hydraulic cylinder, which is fixedly mounted on the support plate 6, which has a disc structure.
[0027] The telescopic cover 10 is made of carbon steel and has a pleated structure. The telescopic cover 10 is connected to the cover cylinder 9, and the filter screen 11 is connected to the telescopic cover 10. The filter screen 11 has a mesh structure.
[0028] The limiting rod 12 is a cylindrical structure. Both ends of the limiting rod 12 are fixedly installed on the inner wall of the cover 9. The outer surface of the limiting rod 12 is smooth. A gap is left between the temperature control band 3 and the limiting rod 12 to ensure that the temperature control band 3 can move flexibly.
[0029] The oil level gauge 5 is made of transparent material, and scale lines are provided on the outside of the oil level gauge 5. The scale lines are clearly visible, making it easy to observe changes in the oil level.
[0030] The top of the cover 9 is provided with a sealing ring, which is made of a high-temperature resistant material.
[0031] The motor 2 is a stepper motor, and the motor 2 is connected to an external power source through a controller.
[0032] Operating Procedures: First, the oil level gauge needs to be installed at a suitable position in the lubricating oil tank, ensuring that the cover 9 completely covers the area of oil level to be monitored. Adjust the height of the support column 4 to match the structure of the support plate 6 and cover 9 with the oil tank, while ensuring the hydraulic cylinder 7 is in normal working condition. After starting the motor 2, the turntable 1 begins to rotate, driving the temperature control belt 3 to circulate within the cover 9. The layered design of the temperature control belt 3 effectively regulates the oil temperature inside the cover, preventing thermal expansion and contraction caused by oil temperature changes from interfering with oil level measurement. When the oil level gauge 5 is inserted into the middle of the cover 9, its transparent material and clear scale lines allow operators to easily observe changes in the oil level in real time. The pleated structure of the telescopic cover 10 allows for flexible adjustment according to the actual height of the oil tank, enhancing the equipment's adaptability. The filter screen 11 filters impurities in the lubricating oil, preventing them from entering the cover and affecting measurement accuracy. The smooth surface and reasonable gap design of the limit rod 12 ensure that the temperature control belt 3 remains stable during rotation, without deviation or jamming. In addition, the high temperature resistance of the sealing ring further improves the reliability of the equipment under extreme working conditions, avoiding sealing failure due to excessive temperature. By adjusting the speed and operating status of the motor 2 through the controller, the working mode of the temperature control belt 3 can be precisely controlled according to actual needs, realizing dynamic management of oil temperature.
[0033] This invention utilizes the cover 9 to partially cover the lubricating oil, allowing for localized measurement of the oil level. The temperature control band 3 controls the oil temperature within the cover 9, preventing the effects of thermal expansion and contraction. This temperature control improves measurement accuracy and avoids interference with oil level measurements. Furthermore, the motor 2 drives the temperature control band 3 to rotate, and the limiting rod 12 ensures its cyclical rotation within the cover 9, further controlling the oil temperature. The telescopic cover 10 allows for adjustment of the overall length of the cover 9 to accommodate different oil tank sizes, enhancing adaptability.
[0034] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.
Claims
1. A lubricating oil tank level gauge for eliminating the influence of oil temperature, comprising a cover (9) and a support plate (6), characterized in that: The pallet (6) is located directly above the cover (9). A support column (4) is fixedly installed on the upper surface of the pallet (6). A motor (2) is fixedly installed at the top of the support column (4). A turntable (1) is fixedly mounted on the motor shaft of the motor (2). A temperature control belt (3) is fitted on the turntable (1). An oil level gauge (5) is fitted in the middle of the pallet (6). Connecting blocks (8) are symmetrically installed on both sides of the cover (9). A hydraulic cylinder (7) is installed between the connecting block (8) and the pallet (6). A telescopic cover (10) is set in the middle of the inside of the cover (9). A filter screen (11) is set at the bottom of the cover (9). A limit rod (12) is inserted horizontally through the bottom of the inside of the cover (9), so that the temperature control belt (3) is fitted outside the limit rod (12).
2. The lubricating oil tank level gauge for eliminating the influence of oil temperature according to claim 1, characterized in that: The temperature control strip (3) is a flat strip with a sandwich layer. The turntable (1) has a groove corresponding to the temperature control strip (3). The turntable (1) has a disc structure.
3. The lubricating oil tank level gauge for eliminating the influence of oil temperature according to claim 1, characterized in that: The hydraulic cylinder (7) is an electric hydraulic cylinder, which is fixedly installed on the pallet (6), which has a disc structure.
4. The lubricating oil tank level gauge for eliminating the influence of oil temperature according to claim 1, characterized in that: The telescopic cover (10) is made of carbon steel and has a pleated structure. The telescopic cover (10) is connected to the cover cylinder (9), and the filter screen (11) is connected to the telescopic cover (10). The filter screen (11) has a mesh structure.
5. The lubricating oil tank level gauge for eliminating the influence of oil temperature according to claim 1, characterized in that: The limiting rod (12) is a cylindrical structure. Both ends of the limiting rod (12) are fixedly installed on the inner wall of the cover (9). The outer surface of the limiting rod (12) is smooth. There is a gap between the temperature control band (3) and the limiting rod (12) to ensure that the temperature control band (3) can move flexibly.
6. The lubricating oil tank level gauge for eliminating the influence of oil temperature according to claim 1, characterized in that: The oil level gauge (5) is made of transparent material and has scale lines on the outside. The scale lines are clearly visible and make it easy to observe changes in oil level.
7. The lubricating oil tank level gauge for eliminating the influence of oil temperature according to claim 1, characterized in that: A sealing ring is provided at the top of the cover (9), and the sealing ring is made of high temperature resistant material.
8. The lubricating oil tank level gauge for eliminating the influence of oil temperature according to claim 1, characterized in that: The motor (2) is a stepper motor, and the motor (2) is connected to an external power source through a controller.