A portable device for observing the oil in a speed reducer

By designing a convenient gear reducer oil observation device, which utilizes an external oil pipe, a transparent observation tube, and a float alarm, the problem of not being able to observe the oil level and quality in a timely manner in the existing technology is solved, realizing the oil level monitoring and alarm functions, and ensuring the normal operation of the gear reducer.

CN224469637UActive Publication Date: 2026-07-07SOUTH TO NORTH WATER SHANDONG LINE CORP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SOUTH TO NORTH WATER SHANDONG LINE CORP
Filing Date
2025-07-22
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

The existing reducer oil observation hole is located on one side of the drum, making it impossible to directly observe the oil level and quality. This results in the inability to detect problems such as low oil level or substandard oil quality in a timely manner, affecting the gate opening and closing function and consequently impacting water diversion operations.

Method used

A convenient oil level monitoring device for a speed reducer is designed, which uses an external oil pipe, a transparent observation tube, a float, and an alarm. Based on the principle of communicating vessels, the float and measuring rod work together to achieve real-time monitoring and alarm of the oil level, ensuring that an alarm is triggered in time when the oil level is not lower than the lower limit, and the oil quality can be observed through the transparent observation tube.

Benefits of technology

It enables convenient observation of oil level and quality without the need for regular cleaning of oil pipes, allowing for timely detection of problems and reminders for maintenance, thus ensuring the normal operation of the reducer.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224469637U_ABST
    Figure CN224469637U_ABST
Patent Text Reader

Abstract

The utility model relates to a kind of portable speed reducer oil observation devices, the portable speed reducer oil observation device, including external oil pipe, the lower part of the external oil pipe is communicated with oil tank by connecting pipe, the top of the external oil pipe is connected with cover, the top of the cover is connected with transparent observation tube, the external oil pipe and transparent observation tube are equipped with the steady pressure hole respectively and communicate with outside, floating ball is equipped in the external oil pipe, the top of the floating ball is connected with the amount rod arranged through cover, the upper end of the amount rod is arranged to penetrate into transparent observation tube, and alarm trigger portion is connected to its top, alarm is equipped in the cover top below alarm trigger portion, to be contacted alarm by alarm trigger portion when oil level in external oil pipe drops to lower limit. The portable speed reducer oil observation device, not only facilitate to observe speed reducer oil level, oil quality condition, and need not to clean oil pipe periodically, and can alarm when oil level is too low to facilitate maintenance.
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Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering, and in particular to a convenient gearbox oil observation device. Background Technology

[0002] In the South-to-North Water Diversion Project, some gate stations, such as the Xiajin Canal Management Office, have oil observation holes on the side of the gate's opening and closing mechanism reducer, making it impossible to directly observe the oil level and quality. This means that problems such as low oil levels or substandard oil quality cannot be detected in time, hindering timely maintenance. Repeated occurrences can damage the reducer, affecting the normal opening and closing function of the gates, and consequently impacting the smooth operation of the water diversion project.

[0003] This study researched and developed a portable reducer oil observation device, which is installed on the reducer of a gate hoist. This device allows for convenient observation of the reducer oil level and quality, enabling timely detection of problems such as low oil level or substandard oil quality, and facilitating maintenance to ensure normal gate opening and closing function. Key specifications are as follows:

[0004] Based on the principle of communicating vessels, a convenient oil observation device for speed reducers was studied and designed. It is made of stainless steel and installed at the oil drain hole of the speed reducer. Utility Model Content

[0005] To overcome the shortcomings of the prior art, this utility model provides a convenient gearbox oil observation device, which not only facilitates the observation of the gearbox oil level and quality, but also eliminates the need for regular cleaning of the oil pipes, and can alarm when the oil level is too low for convenient maintenance.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0007] A portable gear reducer oil level observation device includes an external oil pipe. The lower part of the external oil pipe is connected to an oil tank via a connecting pipe. A cap is connected to the top of the external oil pipe, and a transparent observation tube is connected to the top of the cap. The external oil pipe and the transparent observation tube are respectively provided with pressure stabilizing holes that communicate with the outside. A float is provided inside the external oil pipe, and a measuring rod that penetrates the cap is connected to the top of the float. The upper end of the measuring rod penetrates into the transparent observation tube and is connected to an alarm triggering part at its top. An alarm is provided below the alarm triggering part on the top of the cap so that the alarm is triggered when the oil level in the external oil pipe drops to the lower limit. An oil level line corresponding to the alarm triggering part is provided on the transparent observation tube.

[0008] Furthermore, an oil drain pipe is connected to the bottom of the external oil pipe, and a shut-off valve is connected to the oil drain pipe.

[0009] Furthermore, the alarm triggering unit is a limiting plate fixed to the top of the measuring rod.

[0010] Furthermore, the limiting disc is threaded onto the measuring rod.

[0011] Furthermore, the top and bottom of the cap are provided with threaded connection parts that respectively mate with the external oil pipe and the transparent observation tube, and a sealing ring is provided between the external oil pipe and its corresponding threaded connection part.

[0012] Furthermore, the connecting pipe and the external oil pipe are made of stainless steel.

[0013] The advantages of this utility model using the above-mentioned technical solution are as follows: This convenient reducer oil observation device, through the combination of external oil pipe, cover, transparent observation tube, float, measuring rod and other structures, allows for very convenient and clear observation of the reducer oil level without the need for regular cleaning of the oil pipe; through the combination of the upper limit plate of the measuring rod and the alarm on the top of the cover, an alarm can be set when the oil level drops to a certain height, so as to remind people to maintain and add oil in time. Attached Figure Description

[0014] Figure 1 This is a cross-sectional structural diagram of one embodiment of the present invention.

[0015] In the diagram, 1. External oil pipe, 2. Connecting pipe, 3. Cover, 4. Transparent observation tube, 5. Float, 6. Measuring rod, 7. Alarm trigger, 8. Alarm, 9. Drain pipe, 10. Shut-off valve. Detailed Implementation

[0016] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0018] like Figure 1 As shown in this embodiment, the portable reducer oil observation device includes an external oil pipe 1. The lower part of the external oil pipe 1 is connected to the oil tank through a connecting pipe 2. The top of the external oil pipe 1 is connected to a cap 3. The top of the cap 3 is connected to a transparent observation tube 4. The external oil pipe 1 and the transparent observation tube 4 are respectively provided with pressure stabilizing holes that communicate with the outside. A float ball 5 is provided inside the external oil pipe 1. The top of the float ball 5 is connected to a measuring rod 6 that penetrates the cap 3. The upper end of the measuring rod 6 penetrates into the transparent observation tube 4 and is connected to an alarm triggering part 7 at its top. An alarm 8 is provided below the alarm triggering part 7 at the top of the cap 3 so that the alarm is triggered by the alarm triggering part 7 when the oil level in the external oil pipe 1 drops to the lower limit. The transparent observation tube 4 is provided with an oil level line corresponding to the alarm triggering part 7.

[0019] Furthermore, the bottom of the external oil pipe 1 is connected to an oil drain pipe 9, and a shut-off valve 10 is connected to the oil drain pipe 9. Furthermore, the alarm triggering unit 7 is a limiting plate fixed to the top of the measuring rod.

[0020] Furthermore, the limiting disc is threaded onto the measuring rod, and the lower limit of the oil level can be set as needed.

[0021] Furthermore, the top and bottom of the cover 3 are provided with threaded connection parts that respectively cooperate with the external oil pipe 1 and the transparent observation tube 4, and a sealing ring is provided between the external oil pipe 1 and its corresponding threaded connection part.

[0022] Furthermore, the connecting pipe 2 and the external oil pipe 1 are made of stainless steel, while the transparent observation tube can be made of plastic.

[0023] Working Principle: The external oil pipe is connected to the reducer's oil tank. Based on the principle of communicating vessels, the oil levels in both are the same. A float ball is installed inside the external oil pipe. The float ball rises and falls with the oil level, causing the connected measuring rod to move up and down accordingly. The alarm trigger at the top of the measuring rod, in conjunction with the oil level line on the transparent observation tube, determines the oil level in the external oil pipe. Because the transparent observation tube and the external oil pipe are separated by a cap, oil stains do not adhere to the transparent observation tube, eliminating the need for additional cleaning and ensuring accurate oil level readings. When the oil level drops to the lower limit, the measuring rod, along with the alarm trigger, moves down to contact the alarm, promptly reminding the operator to add oil. When it is necessary to sample and measure the oil quality, a portion of the oil can be drained through the drain pipe for testing, which is very convenient.

[0024] The above specific embodiments should not be construed as limiting the scope of protection of this utility model. For those skilled in the art, any alternative improvements or modifications made to the embodiments of this utility model shall fall within the scope of protection of this utility model.

[0025] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. A convenient gearbox oil level indicator, characterized in that, The device includes an external oil pipe, the lower part of which is connected to the oil tank via a connecting pipe. The top of the external oil pipe is connected to a cap, and the top of the cap is connected to a transparent observation tube. Both the external oil pipe and the transparent observation tube are provided with pressure stabilizing holes that communicate with the outside. A float is installed inside the external oil pipe, and the top of the float is connected to a measuring rod that penetrates through the cap. The upper end of the measuring rod penetrates into the transparent observation tube and is connected to an alarm trigger. An alarm is installed below the alarm trigger on the top of the cap, so that when the oil level in the external oil pipe drops to the lower limit, the alarm is triggered. The transparent observation tube is provided with an oil level line corresponding to the alarm trigger.

2. The portable gearbox oil observation device according to claim 1, characterized in that, The bottom of the external oil pipe is connected to an oil drain pipe, and a shut-off valve is connected to the oil drain pipe.

3. The portable gearbox oil observation device according to claim 1, characterized in that, The alarm triggering unit is a limit plate fixed to the top of the measuring rod.

4. The portable gearbox oil observation device according to claim 3, characterized in that, The limiting disc is threaded onto the measuring rod.

5. The portable gearbox oil observation device according to claim 1, characterized in that, The top and bottom of the cap are provided with threaded connection parts that mate with the external oil pipe and the transparent observation tube, respectively, and a sealing ring is provided between the external oil pipe and its corresponding threaded connection part.

6. The portable gearbox oil observation device according to claim 1, characterized in that, The connecting pipe and external oil pipe are made of stainless steel.