Oil sampling device for oil observation hole of fan generator

Abstract

The utility model relates to a fan generator grease observation hole oil sampling device which comprises a sampling pipe and a push rod, the sampling pipe is of a through hole structure with two open ends, the size of the cross section of the push rod is smaller than the inner diameter of the sampling pipe, and a push disc with the outer diameter equal to the inner diameter of the sampling pipe is fixed at one end of the push rod. And the length of the push rod is greater than that of the sampling tube. According to the utility model, the technical problems that impurities are easy to mix, grease is difficult to take and the working efficiency is low in the existing grease sampling mode of the grease observation hole of the fan generator can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of grease sampling, in particular to an oil sampling device for a grease observation hole of a wind turbine generator. Background Art

[0002] The lubricating grease of a wind turbine generator is generally a lubricant between solid and semi-fluid, with moderate viscosity. This lubricating grease can form a stable lubricating film under high temperature or heavy load conditions, effectively reducing friction and wear. At the same time, it has good sealing performance and can effectively prevent the entry of dust, moisture and impurities.

[0003] Currently, when sampling and detecting the lubricating grease of the bearings of a wind turbine generator, sampling is generally only completed by a long spoon, without special tools. There are certain drawbacks when using existing tools to extract grease, such as: the grease taken is mixed with sundries, it is difficult to extract grease, and the work efficiency is not high. Summary of the Utility Model

[0004] The utility model aims at the technical problems of the existing oil sampling method for the grease observation hole of a wind turbine generator, such as being easily mixed with sundries, difficult to extract grease, and low work efficiency, and provides an oil sampling device for the grease observation hole of a wind turbine generator.

[0005] The technical solution of the utility model to solve the above technical problems is as follows:

[0006] An oil sampling device for a grease observation hole of a wind turbine generator includes a sampling tube and a push rod. The sampling tube is a through-hole structure with openings at both ends. The cross-sectional dimension of the push rod is smaller than the inner diameter of the sampling tube, and a push plate with an outer diameter equal to the inner diameter of the sampling tube is fixed at one end, and the length of the push rod is greater than the length of the sampling tube.

[0007] The beneficial effect of the utility model is: when extracting grease, insert one end of the sampling tube into the observation hole, then the grease can enter one end of the sampling tube. Under the action of the consistency and viscosity of the grease itself, quickly take out the sampling tube that has completed sampling from the observation hole, and then insert one end of the push rod and the push plate into the other end of the sampling tube. Then, by applying force to the other end of the push rod, the push rod can be pushed, and the grease in the sampling tube can be pushed out into the oil sample bottle to complete sampling. Through this sampling method, sampling can be completed quickly and simply, and at the same time, the technical problems of being easily mixed with sundries, difficult to extract grease, and low work efficiency can be improved.

[0008] On the basis of the above technical solution, the utility model can also be improved as follows.

[0009] Further, a plurality of circles of oil holes are formed through the side wall at one end of the sampling tube. The plurality of circles of oil holes are arranged at intervals along the length direction of the sampling tube, and a plurality of the oil holes are distributed at intervals in each circle.

[0010] The beneficial effect of adopting the above further solution is that when one end of the sampling tube is inserted into the observation hole for sampling, the grease is automatically extruded and enters the sampling tube through the oil hole, improving the sampling efficiency.

[0011] Further, a guiding surface is formed by chamfering the inner wall at one end of the sampling tube.

[0012] The beneficial effect of adopting the above further solution is that when one end of the sampling tube is inserted into the observation hole for sampling, the grease can be quickly guided into the sampling tube through the guiding surface.

[0013] Further, the oil sampling device further includes an outer tube with a through-hole structure having two open ends, and one end of the outer tube is detachably connected to the other end of the sampling tube.

[0014] The beneficial effect of adopting the above further solution is that before sampling, the sampling tube and the outer tube are connected to extend the entire sampling device, facilitating the completion of deep sampling operations.

[0015] Further, the inner diameter of the outer tube is equal to the outer diameter of the sampling tube, and the outer tube can be turned over and sleeved outside the sampling tube to close all the oil holes.

[0016] The beneficial effect of adopting the above further solution is that before the oil sample is pushed out by the push plate, the outer tube and the sampling tube are first separated, and then the outer tube is integrally sleeved on the sampling tube to close the oil holes through the outer tube, so that when the push plate pushes out the grease, the grease will only be pushed out from one end of the sampling tube.

[0017] Further, the length of the outer tube is equal to the length of the sampling tube.

[0018] The beneficial effect of adopting the above further solution is to ensure that the outer tube can close all the oil holes.

[0019] Further, the outer tube and the sampling tube are threadedly connected, and an internal thread is formed on the inner wall at one end of the outer tube, and an external thread is formed on the outer wall at the other end of the sampling tube.

[0020] The beneficial effect of adopting the above further solution is to realize the quick separation or connection of the two by the relative rotation of the outer tube and the sampling tube.

[0021] Further, a push plate is fixed to the other end of the push rod.

[0022] The beneficial effect of adopting the above further solution is to facilitate quickly pushing or pulling the push rod by holding the push plate to move the push plate.

[0023] Further, the oil hole is a round hole structure with a hole diameter of 2 - 5 mm.

[0024] The beneficial effects of adopting the above further solution are as follows: to ensure that the grease can enter the sampling tube through the oil hole and prevent the grease from flowing out of the sampling tube through the oil hole.

[0025] Furthermore, the inner diameter of the outer tube and the outer diameter of the sampling tube are both 12 mm, and the inner diameter of the sampling tube and the outer diameter of the push plate are both 9 mm.

[0026] The beneficial effects of adopting the above further solution are as follows: to ensure that the sampling tube can smoothly enter the observation hole and complete the grease sampling operation. Description of the Drawings

[0027] Figure 1 It is a cross-sectional view of the grease observation hole oil sampling device of the utility model for a fan generator, showing the state where the outer tube is integrally sleeved on the sampling tube;

[0028] Figure 2 is Figure 1 a partial enlarged view;

[0029] Figure 3 It is a partial cross-sectional view of the grease observation hole oil sampling device of the utility model for a fan generator, showing the state where one end of the outer tube is sleeved on the other end of the sampling tube.

[0030] In the drawings, the list of components represented by each reference numeral is as follows:

[0031] 1. Sampling tube; 11. Oil hole; 12. Guide surface; 2. Push rod; 3. Push plate; 4. Push board; 5. Outer tube. Detailed Embodiments

[0032] The principles and features of the present utility model will be described below with reference to the accompanying drawings. The examples given are only for explaining the present utility model and are not intended to limit the scope of the present utility model.

[0033] Embodiment 1

[0034] As Figure 1 and Figure 2 , an oil sampling device for a grease observation hole of a fan generator includes a sampling tube 1 and a push rod 2. The sampling tube 1 is a through-hole structure with openings at both ends. The cross-sectional dimension of the push rod 2 is smaller than the inner diameter of the sampling tube 1, and a push plate 3 with an outer diameter equal to the inner diameter of the sampling tube 1 is fixed at one end, and the length of the push rod 2 is greater than the length of the sampling tube 1.

[0035] The beneficial effects of this embodiment are as follows: When extracting grease, one end of the sampling tube 1 is inserted into the observation hole, so that the grease can enter one end of the sampling tube 1. Under the action of the consistency and viscosity of the grease itself, the sampling tube 1 after sampling is quickly taken out from the observation hole, and then the push plate 3 is inserted into the other end of the sampling tube 1, and the grease in the sampling tube 1 can be pushed into the oil sample bottle to complete the sampling. Through this sampling method, the sampling can be completed quickly and simply, and at the same time, the technical problems of easy mixing of sundries, difficult grease sampling and low work efficiency are improved.

[0036] The sampling tube 1, the push rod 2 and the push plate 3 can all be made of stainless steel materials. And the push rod 2 can be made of a rod-shaped material with a variable-diameter cross-section. In the figure, the push rod 2 is a round rod, and the cross-sectional dimensions from both ends to the middle gradually decrease.

[0037] The length of the sampling tube 1 is 150 mm. In this embodiment, the length of the push rod 2 can be 160 mm.

[0038] Embodiment 2

[0039] As Figure 1 and Figure 2 , on the basis of Embodiment 1, a plurality of circles of oil holes 11 are formed through the side wall at one end of the sampling tube 1. The plurality of circles of oil holes 11 are arranged at intervals along the length direction of the sampling tube 1, and a plurality of oil holes 11 are distributed at intervals in each circle.

[0040] The beneficial effect of adopting the preferred scheme in the above embodiment is that when one end of the sampling tube 1 is inserted into the observation hole for sampling, the grease is automatically extruded and enters the sampling tube 1 through the oil holes 11, improving the sampling efficiency.

[0041] In this embodiment, the oil holes 11 can be round holes or polygonal holes. In the figure, they are shown as round holes for easy cleaning of the grease.

[0042] Embodiment 3

[0043] As Figure 1 and Figure 2 , on the basis of Embodiments 1 and 2, a guiding surface 12 is formed by chamfering the inner wall at one end of the sampling tube 1.

[0044] The beneficial effect of adopting the preferred scheme in the above embodiment is that when one end of the sampling tube 1 is inserted into the observation hole for sampling, the grease is quickly guided into the sampling tube 1 through the guiding surface 12.

[0045] On the basis of the above embodiment, a slope is also formed by chamfering the inner wall at the other end of the sampling tube 1 to facilitate the guiding of the push plate 3 into the pipeline.

[0046] Embodiment 4

[0047] As Figure 3, on the basis of Embodiments 1-3, the oil sampling device further includes an outer tube 5 having a through-hole structure with both ends open, and one end of the outer tube 5 is detachably connected to the other end of the sampling tube 1.

[0048] The beneficial effect of adopting the preferred solution in the above embodiment is that before sampling, the sampling tube 1 and the outer tube 5 can be connected to extend the entire sampling device, facilitating the completion of deep sampling operations.

[0049] After sampling, when the grease in the sampling tube 1 is pushed out by the push plate 3, the outer tube 5 can be removed first.

[0050] The outer tube 5 can be made of stainless steel material.

[0051] Embodiment 5

[0052] As Figure 1 and Figure 2 , on the basis of Embodiments 1-4, the inner diameter of the outer tube 5 is equal to the outer diameter of the sampling tube 1, and the outer tube 5 can be reversed and sleeved outside the sampling tube 1, so that each oil hole 11 is closed.

[0053] The beneficial effect of adopting the preferred solution in the above embodiment is that before the oil sample is pushed out by the push plate 3, the outer tube 5 and the sampling tube 1 can be separated first, and then the outer tube 5 is sleeved on the sampling tube 1 as a whole to close the oil hole 11 through the outer tube 5, so that when the push plate 3 pushes out the grease, the grease will only be pushed out from one end of the sampling tube 1.

[0054] Specifically, when sampling, one end of the outer tube 5 overlaps with the other end of the sampling tube 1, the outer tube 5 is sleeved outside the sampling tube 1, and the other end of the outer tube 5 is away from one end of the sampling tube 1; when the grease in the sampling tube 1 is pushed out, the outer tube 5 can be removed first and then sleeved outside the sampling tube 1 again, one end of the outer tube 5 overlaps with the other end of the sampling tube 1, and the other end of the outer tube 5 overlaps with one end of the sampling tube 1.

[0055] Embodiment 6

[0056] As Figure 1 and Figure 2 , on the basis of Embodiments 1-5, the length of the outer tube 5 is equal to the length of the sampling tube 1.

[0057] The beneficial effect of adopting the preferred solution in the above embodiment is to ensure that the outer tube 5 can close all the oil holes 11.

[0058] As an alternative solution to the above embodiment, on the basis of Embodiment 1, the length of the outer tube 5 is 150 mm. In this embodiment, the length of the push rod 2 can be 160 mm. When pushing out the grease, the outer tube 5 can be sleeved outside the sampling tube 1 as a whole first.

[0059] Embodiment 7

[0060] As Figure 1 and Figure 2 , on the basis of Embodiments 1-6, the outer tube 5 and the sampling tube 1 are threadedly connected. One end inner wall of the outer tube 5 is formed with an internal thread, and the other end outer wall of the sampling tube 1 is formed with an external thread.

[0061] The beneficial effect of adopting the preferred solution in the above embodiment is that the rapid separation or connection of the two can be achieved by the relative rotation of the outer tube 5 and the sampling tube 1.

[0062] In this embodiment, the length of the threaded connection between the outer tube 5 and the sampling tube 1 is 50 mm.

[0063] As an alternative solution to the above embodiment, the outer tube 5 and the sampling tube 1 can also be detachably connected by means of clamping, riveting, etc.

[0064] Embodiment 8

[0065] As Figure 1 and Figure 2 , on the basis of Embodiments 1-7, a push plate 4 is fixed to the other end of the push rod 2.

[0066] The beneficial effect of adopting the preferred solution in the above embodiment is that it is convenient to quickly push or pull the push rod 2 by hand holding the push plate 4 to realize the movement of the push plate 3.

[0067] On the basis of the above embodiment, the push plate 4 can be a rectangular plate structure or a circular plate structure.

[0068] Embodiment 9

[0069] As Figure 1 and Figure 2 , on the basis of Embodiments 1-8, the oil hole 11 is a round hole structure, and the hole diameter is 2-5 mm. Specifically, the diameter of the oil hole 11 can be 2 mm, 3 mm, 4 mm, and 5 mm.

[0070] The beneficial effect of adopting the preferred solution in the above embodiment is that it can ensure that the grease can enter the sampling tube 1 through the oil hole 11 and prevent the grease from flowing out of the sampling tube 1 from the oil hole 11.

[0071] Embodiment 10

[0072] As Figure 1 and Figure 2 , on the basis of Embodiments 1-9, the inner diameter of the outer tube 5 and the outer diameter of the sampling tube 1 are both 12 mm, and the inner diameter of the sampling tube 1 and the outer diameter of the push plate 3 are both 9 mm.

[0073] The beneficial effect of adopting the preferred solution in the above embodiment is that it can ensure that the sampling tube 1 smoothly enters the observation hole and completes the grease sampling operation.

[0074] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0075] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0076] In the present utility model, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0077] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0078] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0079] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. An oil sampling device for the grease observation hole of a fan generator, characterized in that It includes a sampling tube (1) and a push rod (2). The sampling tube (1) has a through-hole structure with both ends open. The cross-sectional dimension of the push rod (2) is smaller than the inner diameter of the sampling tube (1), and a push plate (3) with an outer diameter equal to the inner diameter of the sampling tube (1) is fixed at one end, and the length of the push rod (2) is greater than the length of the sampling tube (1).

2. The oil sampling device for the grease observation hole of a fan generator according to claim 1, characterized in that, A plurality of circles of oil holes (11) are formed through the side wall at one end of the sampling tube (1). The plurality of circles of oil holes (11) are arranged at intervals along the length direction of the sampling tube (1), and a plurality of the oil holes (11) are distributed at intervals in each circle.

3. The oil sampling device for the grease observation hole of a fan generator according to claim 2, characterized in that, A guiding surface (12) is formed by chamfering the inner wall at one end of the sampling tube (1).

4. The oil sampling device for the grease observation hole of a fan generator according to claim 2, wherein The oil sampling device further includes an outer tube (5) having a through-hole structure with both ends open. One end of the outer tube (5) is detachably connected to the other end of the sampling tube (1).

5. The oil sampling device for the grease observation hole of a fan generator according to claim 4, characterized in that, The inner diameter of the outer tube (5) is equal to the outer diameter of the sampling tube (1), and the outer tube (5) can be turned over and sleeved outside the sampling tube (1) so that each of the oil holes (11) is closed.

6. The oil sampling device for the grease observation hole of a fan generator according to claim 5, characterized in that, The length of the outer tube (5) is equal to the length of the sampling tube (1).

7. The oil sampling device for the grease observation hole of a fan generator according to claim 4, characterized in that, The outer tube (5) and the sampling tube (1) are threadedly connected. An internal thread is formed on the inner wall at one end of the outer tube (5), and an external thread is formed on the outer wall at the other end of the sampling tube (1).

8. The oil sampling device for the grease observation hole of a fan generator according to any one of claims 1-7, characterized in that, A push plate (4) is fixed at the other end of the push rod (2).

9. The oil sampling device for the grease observation hole of a fan generator according to any one of claims 2-7, characterized in that, The oil hole (11) has a circular hole structure, and the hole diameter is 2 - 5 mm.

10. The oil sampling device for the grease observation hole of a fan generator according to any one of claims 4-7, characterized in that, The inner diameter of the outer tube (5) and the outer diameter of the sampling tube (1) are both 12 mm, the inner diameter of the sampling tube (1) and the outer diameter of the push plate (3) are both 9 mm.

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