Liquid level monitoring device of wind power gear box
By installing a level monitoring device consisting of a level indicator, a vent pipe, and an oil inlet pipe on the wind turbine gearbox, adaptive monitoring of the lubricating oil level in the wind turbine gearbox is achieved using the principle of communicating vessels. This solves the level monitoring problem in different application scenarios and improves the versatility and convenience of the device.
Patent Information
- Application Number
- CN202520055809.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2035-01-10
AI Technical Summary
Existing fixed level gauges cannot achieve adaptive level monitoring of wind turbine gearboxes in different application scenarios, resulting in poor versatility.
A liquid level monitoring device for a wind turbine gearbox was designed, including a liquid level display, a vent pipe, and an oil inlet pipe. It is connected through multiple interface terminals and uses the principle of communicating vessels to measure the lubricating oil level. It allows the installation position of the pipes to be adjusted according to the application scenario, so as to achieve adaptive monitoring.
It enables adaptive monitoring of lubricating oil level in wind turbine gearboxes under different application scenarios, improving the versatility and convenience of the device.
Smart Images
Figure CN223469698U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wind power gear boxes, in particular to a liquid level monitoring device for a wind power gear box. Background Art
[0002] The wind turbine gearbox is a key transmission component of a wind turbine generator set. Its main function is to transmit the power generated by the wind rotor under the action of wind to the generator, thereby converting wind energy into electrical energy. Lubricating oil is an important part of ensuring the reliability of key parts inside the wind turbine gearbox. It can reduce friction and wear between gears and bearings, and play a role in cooling, cleaning, and corrosion prevention. Among them, the setting of the lubricating oil level affects the effective lubrication of the internal parts of the gearbox. If the level is set too high, it will easily cause oil leakage in the gearbox. If the level is set too low, it will cause parts such as gears and bearings to not be effectively lubricated and their performance will be reduced. Therefore, different lubricating oil levels need to be set for different application scenarios of wind turbine gearboxes. In long-term static and non-operating scenarios, the level will be set higher to ensure lubrication of as many bearings as possible. In mountainous transportation scenarios with multiple slope sections, the level will be set lower to reduce the risk of gearbox oil leakage.
[0003] Currently, fixed circular or bar-shaped liquid level gauges are commonly used to monitor the lubricating oil level inside wind turbine gearboxes. However, these fixed circular or bar-shaped liquid level gauges cannot achieve adaptive monitoring of the wind turbine gearbox after adjusting the liquid level height for different application scenarios. They have limitations to a certain extent and poor versatility.
[0004] Therefore, there is an urgent need for a liquid level monitoring device for a wind turbine gearbox to solve the above problems. Utility Model Content
[0005] The purpose of the utility model is to provide a liquid level monitoring device for a wind turbine gearbox, so as to solve the problem that the existing fixed liquid level gauge cannot realize adaptive monitoring of the wind turbine gearbox after adjusting the liquid level height according to different application scenarios.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] The utility model provides a liquid level monitoring device for a wind turbine gearbox, which is used to monitor the lubricating oil level inside the wind turbine gearbox. The wind turbine gearbox is provided with multiple interface terminals. The liquid level monitoring device includes:
[0008] A liquid level display, which is arranged outside the wind turbine gearbox and is used to measure and display the liquid level of the lubricating oil being measured;
[0009] An air pipe is selectively detachably connected to one of the interface ends, one end of the air pipe is connected to the liquid level indicator, and the other end of the air pipe is in communication with the air inside the wind turbine gearbox through the interface end and is located above the lubricating oil level.
[0010] An oil inlet pipe is selectively detachably connected to one of the interface ends, one end of the oil inlet pipe is connected to the liquid level indicator, and the other end of the oil inlet pipe is in communication with the lubricating oil through the interface end and is located below the lubricating oil level.
[0011] As a preferred technical solution of the liquid level monitoring device of the wind turbine gearbox, the liquid level monitoring device further comprises a first conversion joint, the first conversion joint is detachably connected to the air pipe, and the first conversion joint is threadedly connected with the interface end.
[0012] As a preferred technical solution of the liquid level monitoring device of the wind turbine gearbox, the first conversion joint is threadedly connected with the air pipe.
[0013] As a preferred technical solution of the liquid level monitoring device of the wind turbine gearbox, the liquid level monitoring device further comprises a second conversion joint, the second conversion joint is detachably connected to the oil inlet pipe, and the second conversion joint is threadedly connected with the interface end.
[0014] As a preferred technical solution of the liquid level monitoring device of the wind turbine gearbox, the second conversion joint is threadedly connected with the oil inlet pipe.
[0015] As a preferred technical solution of the liquid level monitoring device of the wind turbine gearbox, the liquid level indicator is detachably connected to the outer wall of the wind turbine gearbox.
[0016] As a preferred technical solution of the liquid level monitoring device of the wind turbine gearbox, the liquid level indicator is adhesively or threadedly connected to the outer wall of the wind turbine gearbox.
[0017] As a preferred technical solution of the liquid level monitoring device of the wind turbine gearbox, the liquid level indicator has a first connection end and a second connection end at two ends along the length direction of the liquid level indicator, the first connection end is threadedly connected to one end of the air pipe, and the second connection end is threadedly connected to one end of the oil inlet pipe.
[0018] As a preferred technical solution of the liquid level monitoring device of the wind turbine gearbox, the air pipe is made of a flexible material; and / or, the oil inlet pipe is made of a flexible material.
[0019] As a preferred technical scheme of the liquid level monitoring device of the wind power gear box, a limiting buckle is arranged on the outer wall of the wind power gear box, and the breather pipe is connected with the limiting buckle; and / or the oil inlet pipe is connected with the limiting buckle.
[0020] The wind power gear box liquid level monitoring device has the following beneficial effects:
[0021] The utility model provides a kind of liquid level monitoring device of wind power gear box, for monitoring the lubricating oil level inside wind power gear box, and wind power gear box is provided with multiple interface ends, this liquid level monitoring device includes: liquid level display, breather pipe and oil inlet pipe, liquid level display is arranged in wind power gear box outside and is based on communicating vessel principle measurement and display the liquid level height of measured lubricating oil, breather pipe is connected in liquid level display along the length direction of itself one end, breather pipe selectively can be detachably connected in one of interface ends, one end of breather pipe is connected in liquid level display, the other end of breather pipe is connected with wind power gear box inside air through interface end and is located above lubricating oil level, oil inlet pipe selectively can be detachably connected in one of interface ends, one end of oil inlet pipe is connected in liquid level display, the other end of oil inlet pipe is connected with lubricating oil through interface end and is located below lubricating oil level.Such setting, it can be selectively adjusted breather pipe and oil inlet pipe and the fixed installation position of wind power gear box according to the actual application scene of wind power gear box, and based on communicating vessel principle, liquid level height is observed by liquid level display, and it can realize self-adapting monitoring of lubricating oil level height for different application scenes, effectively improve versatility. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 The liquid level monitoring device of the wind power gear box provided by the utility model is structurally shown Figure One ;
[0023] Figure 2 The liquid level monitoring device of the wind power gear box provided by the utility model is structurally shown Figure Two .
[0024] Among them:
[0025] 1, wind power gear box;2, liquid level display;3, breather pipe;4, oil inlet pipe;5, first conversion joint;6, second conversion joint. DETAILED DESCRIPTION
[0026] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, and are intended to explain the utility model, and cannot be understood as a limitation of the utility model.
[0027] In the description of the utility model, it is necessary to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or position relation based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.
[0028] Unless otherwise expressly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" should be understood broadly, for example, it can be fixed connection, can also be detachable connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0029] Unless otherwise expressly specified and limited, the first feature "on" or "under" the second feature can include that the first feature and the second feature are in direct contact, or the first feature and the second feature are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0030] The technical scheme of the utility model will be further illustrated below in combination with the drawings and through specific embodiments.
[0031] As Figures 1-2As shown, the embodiment provides a liquid level monitoring device for wind power gear box, which is used for monitoring the liquid level of lubricating oil in the wind power gear box 1. The wind power gear box 1 is provided with a plurality of interface ends. The liquid level monitoring device comprises a liquid level display 2, an air pipe 3 and an oil inlet pipe 4. The liquid level display 2 is arranged outside the wind power gear box 1 and measures and displays the liquid level of the measured lubricating oil based on the principle of communicating vessels. One end of the air pipe 3 along the length direction of the air pipe 3 is connected to the liquid level display 2. The air pipe 3 is selectively detachably connected to one of the interface ends. One end of the air pipe 3 is connected to the liquid level display 2. The other end of the air pipe 3 is connected to the air in the wind power gear box 1 through the interface end and is located above the liquid level of the lubricating oil. The oil inlet pipe 4 is selectively detachably connected to one of the interface ends. One end of the oil inlet pipe 4 is connected to the liquid level display 2. The other end of the oil inlet pipe 4 is connected to the lubricating oil through the interface end and is located below the liquid level of the lubricating oil. In this way, the fixed mounting positions of the air pipe 3 and the oil inlet pipe 4 on the wind power gear box 1 can be selectively adjusted according to the actual application scene of the wind power gear box 1. The liquid level height can be observed through the liquid level display 2 based on the principle of communicating vessels. The self-adaptive monitoring of the liquid level height of the lubricating oil for different application scenes can be realized, and the universality is effectively improved.
[0032] In the embodiment, the liquid level monitoring device further comprises a first conversion joint 5 and a second conversion joint 6. The first conversion joint 5 is detachably connected to the air pipe 3 and is threadedly connected to the selected interface end. The second conversion joint 6 is detachably connected to the oil inlet pipe 4 and is threadedly connected to the selected interface end. The first conversion joint 5 is threadedly connected to the air pipe 3. The second conversion joint 6 is threadedly connected to the oil inlet pipe 4. In this way, the mounting positions of the air pipe 3 and the oil inlet pipe 4 can be quickly adjusted and assembled. The overall structure is simplified. Additional assembly parts are reduced. The convenience of monitoring the liquid level of the lubricating oil is effectively improved.
[0033] Optionally, in order to facilitate the adjustment of the mounting position of the liquid level display 2 and the observation of the liquid level height, the liquid level display 2 is detachably connected to the outer wall of the wind power gear box 1. Further, the liquid level display 2 is adhesively or threadedly connected to the outer wall of the wind power gear box 1.
[0034] Optionally, in order to facilitate the disassembly and assembly of the liquid level display 2, the liquid level display 2 has a first connection end and a second connection end at two ends along the length direction of the liquid level display 2. The first connection end is threadedly connected to one end of the air pipe 3 along the length direction of the air pipe 3. The second connection end is threadedly connected to one end of the oil inlet pipe 4 along the length direction of the oil inlet pipe 4.
[0035] Optionally, in order to realize flexible connection and facilitate assembly, the air pipe 3 is made of flexible material; and / or the oil inlet pipe 4 is made of flexible material.
[0036] In the embodiment, in order to further improve the connection stability and reliability of the vent pipe 3 and the oil inlet pipe 4, a limiting buckle is arranged on the outer wall of the wind turbine gearbox 1, the vent pipe 3 is connected with the limiting buckle, and / or the oil inlet pipe 4 is connected with the limiting buckle.
[0037] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled in the art, other different forms of changes or changes can be made on the basis of the above description. Here, all the embodiments are not enumerated. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.
Claims
1. A liquid level monitoring device for a wind turbine gearbox for monitoring the level of lubricating oil inside a wind turbine gearbox (1), characterized in that, The wind turbine gearbox (1) is provided with a plurality of interface ends, and the liquid level monitoring device comprises: a liquid level display (2) arranged outside the wind turbine gearbox (1) and used for measuring and displaying the liquid level of the measured lubricating oil; an air pipe (3) selectively detachably connected to one of the interface ends, one end of the air pipe (3) being connected to the liquid level display (2), and the other end of the air pipe (3) being connected to the air inside the wind turbine gearbox (1) through the interface end and being located above the liquid level of the lubricating oil; an oil inlet pipe (4) selectively detachably connected to one of the interface ends, one end of the oil inlet pipe (4) being connected to the liquid level display (2), and the other end of the oil inlet pipe (4) being connected to the lubricating oil through the interface end and being located below the liquid level of the lubricating oil.
2. The device for monitoring the liquid level of a wind turbine gearbox according to claim 1, characterized in that The liquid level monitoring device further comprises a first conversion joint (5) detachably connected to the air pipe (3), and the first conversion joint (5) is threadedly connected to the interface end.
3. The device for monitoring the level of fluid in a wind turbine gearbox according to claim 2, characterized in that, The first conversion joint (5) is threadedly connected to the air pipe (3).
4. The device for monitoring the liquid level of a wind turbine gearbox according to claim 1, characterized in that, The liquid level monitoring device further comprises a second conversion joint (6) detachably connected to the oil inlet pipe (4), and the second conversion joint (6) is threadedly connected to the interface end.
5. The device for monitoring the level of fluid in a wind turbine gearbox according to claim 4, characterized in that, The second conversion joint (6) is threadedly connected to the oil inlet pipe (4).
6. The device for monitoring the level of liquid in a wind turbine gearbox according to any of the claims 1-5, characterised in that, The liquid level display (2) is detachably connected to the outer wall of the wind turbine gearbox (1).
7. The device for monitoring the level of fluid in a wind turbine gearbox according to claim 6, characterized in that, The liquid level display (2) is adhesively or threadedly connected to the outer wall of the wind turbine gearbox (1).
8. The device for monitoring the level of liquid in a wind turbine gearbox according to any of the claims 1-5, characterised in that, The liquid level display (2) has a first connecting end and a second connecting end at two ends along the length direction of the liquid level display (2), the first connecting end is threadedly connected to one end of the air pipe (3), and the second connecting end is threadedly connected to one end of the oil inlet pipe (4).
9. The device according to any of claims 1-5, characterized in that, The air pipe (3) is made of a flexible material; and / or, the oil inlet pipe (4) is made of a flexible material.
10. The device for monitoring the level of liquid in a wind turbine gearbox according to any of the claims 1-5, characterised in that, The outer wall of the wind turbine gearbox (1) is provided with a limiting buckle, the air pipe (3) is connected to the limiting buckle; and / or, the oil inlet pipe (4) is connected to the limiting buckle.