Online monitoring device for lubrication pump level

CN224622643UActive Publication Date: 2026-08-11ZHENGZHOU DAYOU MINING EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-11
Publication Date
2026-08-11

AI Technical Summary

Technical Problem

[0003]现有的润滑泵液位一般依赖人工现场观察,需要对比刻度线进行判断液位,存在数错刻度的现象,影响液位判断,且需要现场观察,无法远程观察,较为不便,因此,针对上述问题提出润滑泵液位在线监测装置

Benefits of technology

1、本实用新型中,通过设置的油箱、固定环、浮力板、白色反光板、上盖、激光测距仪、工控机和触摸显示屏等构件,可以通过设置的激光测距仪和白色反光板等构件配合,可以精准测量油箱内液位,通过工控机和触摸显示屏可以清晰看到当前液位储备,无需依次对比刻度线,更加方便,且可以通过工控机和触摸显示屏与外部线路或者无线网络,即可从远程进行液位监测无需在现场巡查,从而解决了现有的润滑泵液位一般依赖人工现场观察,需要对比刻度线进行判断液位,存在数错刻度的现象,影响液位判断,且需要现场观察,无法远程观察,较为不便的问题;

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Abstract

This utility model relates to the field of lubrication pump technology, and in particular to an online lubrication pump level monitoring device, including a pump body, a motor, and an oil tank. The motor is fixedly connected to the right side of the pump body, and the oil tank is fixedly connected to the top of the pump body. The inner side of the oil tank has symmetrically arranged limiting grooves, and the inside of the oil tank has sliding grooves located on both sides of the limiting grooves. The inner side of the limiting grooves is provided with limiting blocks, and the inner side of the limiting blocks is rotatably connected to rollers located inside the sliding grooves. In this utility model, the liquid level in the oil tank can be accurately measured by using components such as a laser rangefinder and a white reflector. The current liquid level can be clearly seen through an industrial control computer and a touch screen, without the need to compare the scale lines sequentially, which is more convenient. Moreover, the liquid level can be monitored remotely through the industrial control computer and the touch screen via an external line or wireless network without on-site inspection.
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Description

Technical Field

[0001] This utility model relates to the field of lubrication pump technology, specifically to an online lubrication pump level monitoring device. Background Technology

[0002] Lubrication pumps are the "core power source" of lubrication systems in industrial equipment. Their main function is to pressurize and deliver lubricating oil (or grease) to the friction pairs of the equipment (such as bearings, gears, and guide rails). By reducing friction, dissipating heat and cooling, and preventing rust and sealing, they extend the life of the equipment and ensure its stable operation. They are an indispensable key component of all rotating and transmission industrial equipment. They can accurately deliver lubricating oil to the metal friction surfaces, form an oil film to isolate the friction pairs, avoid direct metal-to-metal contact, and convert sliding friction into rolling friction, thus significantly reducing the wear rate.

[0003] Existing lubrication pump liquid levels generally rely on manual on-site observation, requiring comparison with scale lines to determine the liquid level. This can lead to misreading of scales, affecting liquid level judgment. Furthermore, on-site observation is required, and remote observation is not possible, which is quite inconvenient. Therefore, to address the above problems, an online lubrication pump liquid level monitoring device is proposed. Utility Model Content

[0004] The purpose of this invention is to provide an online monitoring device for the liquid level of a lubrication pump to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A lubrication pump level online monitoring device includes a pump body, a motor, and an oil tank. The motor is fixedly connected to the right side of the pump body, and the oil tank is fixedly connected to the top of the pump body. The inner side of the oil tank has symmetrically arranged limiting grooves, and the inside of the oil tank has sliding grooves located on both sides of the limiting grooves. A limiting block is provided inside the limiting groove, and a roller located inside the sliding groove is rotatably connected to the inner side of the limiting block. A fixing ring located inside the oil tank is fixedly connected between the two limiting blocks. A buoyancy plate is fixedly connected to the inner side of the fixing ring, and a white reflector fixedly connected to the buoyancy plate is fixedly connected to the inner side of the fixing ring. A top cover located above the fixing ring is threadedly connected to the inner side of the oil tank, and a threaded tube is threadedly connected to the inner side of the top cover. A laser rangefinder is fixedly connected to the bottom end of the threaded tube. An industrial control computer is located outside the oil tank, and a touch screen is fixedly connected to the top of the industrial control computer. A small elastic tension spring is fixedly connected between the fixing ring and the pump body.

[0006] Preferably, the inner shape of the limiting groove matches the shape of the limiting block, and the inner side of the limiting groove and the outer side of the limiting block fit together.

[0007] Preferably, the inner width of the groove matches the width of the roller, and the inner length of the groove matches the diameter of the roller.

[0008] Preferably, the inner shape of the oil tank and the outer shape of the fixing ring are matched, both being cylindrical, and the inner side of the oil tank and the outer side of the fixing ring fit together.

[0009] Preferably, the threaded tube and the laser rangefinder are arranged in a group, with a total of three groups, and the threaded tube and the laser rangefinder are arranged in a triangular shape inside the upper cover.

[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, by setting up components such as an oil tank, a fixing ring, a buoyancy plate, a white reflector, a top cover, a laser rangefinder, an industrial control computer, and a touch screen, the liquid level in the oil tank can be accurately measured through the laser rangefinder and the white reflector. The current liquid level can be clearly seen through the industrial control computer and the touch screen, without the need to compare the scale lines one by one, which is more convenient. Moreover, the liquid level can be monitored remotely through the industrial control computer and the touch screen via an external line or wireless network without on-site inspection. This solves the problem that the liquid level of existing lubrication pumps generally relies on manual on-site observation, which requires comparison with the scale lines to judge the liquid level. There is a possibility of miscounting the scale, which affects the liquid level judgment. In addition, it requires on-site observation and cannot be observed remotely, which is quite inconvenient. 2. In this utility model, by setting components such as limiting groove, sliding groove, limiting block, roller, fixing ring and buoyancy plate, the movement trajectory of buoyancy plate can be limited, so that buoyancy plate can descend more smoothly, effectively improving the stability of buoyancy plate when moving, thereby ensuring the accuracy of liquid level monitoring data. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 1 A top-view cross-sectional structural diagram; Figure 3 This utility model Figure 1 A schematic diagram of the front cross-sectional structure; Figure 4 This utility model Figure 1 A schematic diagram of a partial cross-sectional structure.

[0012] In the diagram: 1. Pump body; 2. Motor; 3. Oil tank; 4. Limiting groove; 5. Slide groove; 6. Limiting block; 7. Roller; 8. Fixing ring; 9. Buoyancy plate; 10. White reflector; 11. Top cover; 12. Threaded pipe; 13. Laser rangefinder; 14. Industrial computer; 15. Touch screen; 16. Small elastic tension spring. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0015] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0016] Please see Figure 1-4 This utility model provides a technical solution: The lubrication pump level online monitoring device includes a pump body 1, a motor 2, and an oil tank 3. The motor 2 is fixedly connected to the right side of the pump body 1, and the oil tank 3 is fixedly connected to the top of the pump body 1. The inner side of the oil tank 3 has symmetrically arranged limiting grooves 4. The inside of the oil tank 3 has sliding grooves 5 located on both sides of the limiting grooves 4. The inner side of the limiting grooves 4 has limiting blocks 6. The inner side of the limiting blocks 6 is rotatably connected to rollers 7 located inside the sliding grooves 5. The two limiting blocks 6 are fixedly connected to a fixing ring 8 located inside the oil tank 3. A buoyancy plate 9 is fixedly connected to the inner side of the fixed ring 8. A white reflector 10, which is fixedly connected to the buoyancy plate 9, is fixedly connected to the inner side of the oil tank 3. A top cover 11, located above the fixed ring 8, is threadedly connected to the inner side of the top cover 11. A threaded tube 12 is threadedly connected to the inner side of the top cover 11. A laser rangefinder 13 is fixedly connected to the bottom end of the threaded tube 12. An industrial control computer 14 is provided on the outer side of the oil tank 3. A touch screen display 15 is fixedly connected to the top of the industrial control computer 14. A small elastic tension spring 16 is fixedly connected between the fixed ring 8 and the pump body 1.

[0017] The inner shape of the limiting groove 4 matches the shape of the limiting block 6, and the inner side of the limiting groove 4 and the outer side of the limiting block 6 fit together, which can effectively improve the stability of the buoyancy plate 9 during movement; the inner width of the slide 5 matches the width of the roller 7, and the inner length of the slide 5 matches the diameter of the roller 7, which can reduce the resistance when the buoyancy plate 9 moves and improve the movement sensitivity; the inner shape of the oil tank 3 matches the outer shape of the fixing ring 8, both being cylindrical, and the inner side of the oil tank 3 and the outer side of the fixing ring 8 fit together, which can limit the buoyancy plate 9 to keep it stable; the threaded tube 12 and the laser rangefinder 13 are a group, with a total of three groups. The threaded tube 12 and the laser rangefinder 13 are triangularly arranged inside the upper cover 11. Through multi-point measurement and monitoring, the average value is taken, which further improves the accuracy of the data.

[0018] Workflow: When the online lubrication pump level monitoring device is needed, the entire system is powered externally. As the liquid level in the oil tank 3 changes, the buoyancy plate 9 descends along with the liquid level. The buoyancy plate 9 drives the fixed ring 8 to move under the guidance of the limiting block 6 and the limiting groove 4. Under the action of the limiting groove 4 and the limiting block 6, the buoyancy plate 9 can be limited, making its movement more stable. The sliding groove 5 and the roller 7 make the movement of the limiting block 6, the fixed ring 8 and the buoyancy plate 9 smoother and avoid jamming. The rolling surface of one side of the roller 7 keeps in contact with the sliding groove 5, and there is a limiting gap of 0.1 to 0.3 on the other side to ensure the smooth rotation of the roller 7 and avoid the impact of jamming on the accuracy of liquid level monitoring. The small elastic tension spring 16 can drive the buoyancy plate 9 to move. The elastic force of the small elastic tension spring 16 is less than The buoyancy exerted by the oil on the buoyancy plate 9 is offset by a small elastic spring 16, which works in conjunction with the buoyancy plate 9. This buoyancy partially counteracts the elastic force of the small elastic spring 16, enabling more sensitive monitoring of the lubrication pump level. When the level drops, the buoyancy plate 9 responds quickly under the pull of the small elastic spring 16. As the buoyancy plate 9 descends, it moves the white reflector 10 along with it. The laser rangefinder 13 emits a laser beam towards the white reflector 10 to measure the distance. The distance indicates how much the level has decreased. The white reflector 10 further improves the accuracy of the laser rangefinder 13. The real-time data obtained by the laser rangefinder 13 can be transmitted to the industrial control computer 14 wirelessly or via wired connection. The data is displayed on the touch screen 15 of the industrial control computer 14, enabling real-time monitoring of the lubrication pump level from a distance.

[0019] Contents not described in detail in this specification are existing technologies known to those skilled in the art. Standard parts used in this invention can all be purchased commercially, and irregularly shaped parts can be custom-made according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are already mature technologies. The machinery, parts, and equipment all use conventional models from the prior art, and the circuit connections also employ conventional connection methods from the prior art, which will not be detailed here.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lubrication pump level online monitoring device, comprising a pump body (1), a motor (2), and an oil tank (3), characterized in that: A motor (2) is fixedly connected to the right side of the pump body (1), and an oil tank (3) is fixedly connected to the top of the pump body (1). A symmetrically arranged limiting groove (4) is opened on the inner side of the oil tank (3). A sliding groove (5) located on both sides of the limiting groove (4) is opened inside the oil tank (3). A limiting block (6) is provided on the inner side of the limiting groove (4). A roller (7) located on the inner side of the sliding groove (5) is rotatably connected to the inner side of the limiting block (6). A fixing ring (8) located on the inner side of the oil tank (3) is fixedly connected between the two limiting blocks (6). A buoyancy plate is fixedly connected to the inner side of the fixing ring (8). 9) A white reflector (10) is fixedly connected to the inner side of the fixed ring (8) and fixedly connected to the buoyancy plate (9). The inner side of the oil tank (3) is threadedly connected to the top cover (11) located above the fixed ring (8). The inner side of the top cover (11) is threadedly connected to the threaded tube (12). The bottom end of the threaded tube (12) is fixedly connected to the laser rangefinder (13). An industrial control computer (14) is provided on the outer side of the oil tank (3). The top of the industrial control computer (14) is fixedly connected to the touch screen (15). A small elastic tension spring (16) is fixedly connected between the fixed ring (8) and the pump body (1).

2. The online lubrication pump level monitoring device according to claim 1, characterized in that: The inner shape of the limiting groove (4) matches the shape of the limiting block (6), and the inner side of the limiting groove (4) and the outer side of the limiting block (6) fit together.

3. The online lubrication pump level monitoring device according to claim 1, characterized in that: The inner width of the groove (5) matches the width of the roller (7), and the inner length of the groove (5) matches the diameter of the roller (7).

4. The online lubrication pump level monitoring device according to claim 1, characterized in that: The inner shape of the oil tank (3) and the outer shape of the fixing ring (8) are matched, both being cylindrical, and the inner side of the oil tank (3) and the outer side of the fixing ring (8) fit together.

5. The online lubrication pump level monitoring device according to claim 1, characterized in that: The threaded tube (12) and the laser rangefinder (13) are a set, and there are three sets in total. The threaded tube (12) and the laser rangefinder (13) are arranged in a triangular shape inside the upper cover (11).