Semi-direct-drive fan oil sampling device

Abstract

The utility model relates to an oil sampling device for a semi-direct-drive fan. The oil sampling device comprises a collecting device, an oil return device, a sampling device, a control device and an oil temporary storage device, the oil liquid temporary storage device is connected with the collecting device, the oil return device and the sampling device; the control device is connected with the collecting device, the oil return device and the sampling device; the control device is used for controlling the collecting device, the oil return device and the sampling device, so that the collecting device collects oil liquid from the wind turbine gearbox to the oil liquid temporary storage device, the oil return device enables the oil liquid in the oil liquid temporary storage device to flow back to the wind turbine gearbox, the sampling device samples from the oil liquid temporary storage device, and the sampling device samples the oil liquid from the oil liquid temporary storage device. The oil extraction device is simple and convenient to operate, has a powerful oil extraction function, is favorable for improving the oil sampling efficiency and saves the labor cost.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil monitoring, in particular to an oil sampling device for a semi-direct-drive fan. Background Art

[0002] Lubricating oil is indispensable in mechanical equipment. It has many functions, such as lubrication, rust prevention, flushing, cooling and buffering, etc. It is extremely important for mechanical equipment. Lubricating oil often contains various tribological information, such as oil viscosity, moisture, abrasive particles, etc. Through intelligent analysis of these indicators, the health status information of mechanical equipment can be obtained, so as to better handle and prevent mechanical failures.

[0003] For semi-direct drive fans, most of their lubricating oil is stored in the gearbox. The existing oil extraction method for semi-direct drive fans is mainly through the sampling pump sampling method, that is, the oil pipe of the sampling pump is inserted into the gearbox to extract the sample into the sampling bottle; this method requires stopping the machine to extract the oil, and the sampling efficiency is low and the cost is high; at the same time, this method can only perform a single oil sampling at a certain moment, and manual repeated operations are required for multiple samplings, which is extremely inconvenient, and the amount of sampled oil cannot be guaranteed for each sampling. The excess oil sampled will cause oil waste and the utilization rate of the oil sample is low. Utility Model Content

[0004] In order to solve the problems existing in the background technology, the present invention provides a semi-direct drive fan oil sampling device to improve the oil sampling efficiency and reduce the waste of oil, including:

[0005] A collection device, an oil return device, a sampling device, a control device and an oil temporary storage device; the oil temporary storage device is connected with the collection device, the oil return device and the sampling device; the control device is connected with the collection device, the oil return device and the sampling device; the control device is used to control the collection device, the oil return device and the sampling device, so that the collection device collects oil from the wind turbine gearbox to the oil temporary storage device, the oil return device returns the oil in the oil temporary storage device to the wind turbine gearbox, and the sampling device samples from the oil temporary storage device.

[0006] Preferably, the collection device comprises: a first sampling tube, a first quick connector male head, a first quick connector female head, a first hydraulic oil pipe, a pressure reducing device, a second hydraulic oil pipe, a first oil pump, a third hydraulic oil pipe, a first solenoid valve and a fourth hydraulic oil pipe;

[0007] One end of the first sampling tube is connected to the interior of the wind turbine gearbox for obtaining the oil inside the wind turbine gearbox; the other end of the first sampling tube is connected to one end of the first quick connector male end; the other end of the first quick connector male end is connected to one end of the first quick connector female end; the other end of the first quick connector female end is connected to one end of the first hydraulic oil pipe; the other end of the first hydraulic oil pipe is connected to the input end of the pressure reducing device; the output end of the pressure reducing device is connected to one end of the second hydraulic oil pipe; the other end of the second hydraulic oil pipe is connected to the input end of the first oil pump; the output end of the first oil pump is connected to one end of the third hydraulic oil pipe; the other end of the third hydraulic oil pipe is connected to the input end of the first solenoid valve; the output end of the first solenoid valve is connected to one end of the fourth hydraulic oil pipe; the other end of the fourth hydraulic oil pipe is fixedly connected to the oil temporary storage device; the first oil pump and the first solenoid valve are electrically connected to the control device respectively.

[0008] Preferably, the pressure reducing device is a pressure reducing valve.

[0009] Preferably, the oil temporary storage device is a container; the interior of the container is hollow; an input end is provided at the upper end of the container; a first output end and a second output end are provided at the lower end of the container; the other end of the fourth hydraulic oil pipe is fixedly connected to the input end of the container, and is connected to the interior of the container through the input end of the container.

[0010] Preferably, the sampling device comprises: a sampling bottle, a first sampling oil pipe, a second oil pump, a second sampling oil pipe, a second solenoid valve and a third sampling oil pipe;

[0011] One end of the first sampling oil pipe is connected to the interior of the sampling bottle for inputting the sampled oil into the sampling bottle; the other end of the first sampling oil pipe is connected to the output end of the second oil pump; the input end of the second oil pump is connected to one end of the second sampling oil pipe; the other end of the second sampling oil pipe is connected to the output end of the second solenoid valve; the input end of the second solenoid valve is connected to one end of the third sampling oil pipe; the other end of the third sampling oil pipe is fixedly connected to the oil temporary storage device; the second oil pump and the second solenoid valve are electrically connected to the control device respectively.

[0012] Preferably, the oil temporary storage device is a container; the interior of the container is hollow; an input end is provided at the upper end of the container; a first output end and a second output end are provided at the lower end of the container; the other end of the third sampling oil pipe is fixedly connected to the first output end of the container, and is connected to the interior of the container through the first output end of the container.

[0013] Preferably, the oil return device comprises: a first oil return pipe, a second quick connector male head, a second quick connector female head, a second oil return pipe, a third oil pump, a third oil return pipe, a third solenoid valve and a fourth oil return pipe;

[0014] One end of the first oil return pipe is connected to the interior of the wind turbine gearbox, and is used to return the oil to the wind turbine gearbox; the other end of the first oil return pipe is connected to one end of the second quick connector male end; the other end of the second quick connector male end is connected to one end of the second quick connector female end; the other end of the second quick connector female end is connected to one end of the second oil return pipe; the other end of the second oil return pipe is connected to the output end of the third oil pump; the input end of the third oil pump is connected to one end of the third oil return pipe; the other end of the third oil return pipe is connected to the output end of the third solenoid valve; the input end of the third solenoid valve is connected to one end of the fourth oil return pipe; the other end of the fourth oil return pipe is fixedly connected to the oil temporary storage device; the third solenoid valve and the third oil pump are electrically connected to the control device respectively.

[0015] Preferably, the oil temporary storage device is a container; the interior of the container is hollow; an input end is provided at the upper end of the container; a first output end and a second output end are provided at the lower end of the container; the other end of the fourth oil return pipe is fixedly connected to the second output end of the container, and is connected to the interior of the container through the second output end of the container.

[0016] Preferably, a liquid level detection device is provided inside the container, and the liquid level detection device is electrically connected to the control device.

[0017] The utility model has at least the following beneficial effects

[0018] The utility model can control the collecting device in real time through the controller to extract oil from the fan gear box to the oil temporary storage device for temporary storage, so as to realize online oil extraction, avoid stoppage for oil extraction, reduce the cost of oil extraction, and improve the efficiency of oil extraction. The sampling device can automatically perform multiple samplings directly from the oil temporary storage device according to the needs of the staff, thereby improving the convenience of oil sampling. At the same time, the excess oil in the oil temporary storage device is returned to the fan gear box through the oil return device, thereby avoiding waste of oil and improving the utilization rate of oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the oil sampling device for a semi-direct drive fan of the present invention;

[0020] The reference numerals in the figures are:

[0021] 11. first sampling tube, 12. first quick connector male end, 13. first quick connector female end, 14. first hydraulic oil pipe, 15. pressure reducing device, 16. second hydraulic oil pipe, 17. first oil pump, 18. third hydraulic oil pipe, 19. first solenoid valve, 10. fourth hydraulic oil pipe, 20. sampling bottle, 21. first sampling oil pipe, 22. second oil pump, 23. second sampling oil pipe, 24. second solenoid valve, 25. third sampling oil pipe, 31. first return oil pipe, 32. second quick connector male end, 33. second quick connector female end, 34. second return oil pipe, 35. third oil pump, 36. third return oil pipe, 37. third solenoid valve, 38. fourth return oil pipe, 4. control device, 5. oil temporary storage device. DETAILED DESCRIPTION

[0022] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0023] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0024] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0025] See also Figure 1 The present invention provides a semi-direct drive fan oil sampling device, comprising:

[0026] A collection device, an oil return device, a sampling device, a control device 4 and an oil temporary storage device 5; the oil temporary storage device 5 is connected with the collection device, the oil return device and the sampling device; the control device 4 is connected with the collection device, the oil return device and the sampling device; the control device 4 is used to control the collection device, the oil return device and the sampling device, so that the collection device collects oil from the wind turbine gearbox to the oil temporary storage device 5, the oil return device returns the oil in the oil temporary storage device to the wind turbine gearbox, and the sampling device samples from the oil temporary storage device 5.

[0027] In this embodiment, the collection device is first controlled by the control device 4 to work, and the collection device draws oil from the wind turbine gearbox to the oil temporary storage device 5 for storage. After the extraction is completed, the collection device is closed by the control device 4, and then the sampling device is controlled to work, and the sampling device draws oil from the oil temporary storage device 5 for sampling. In this process, the control device 4 can control the sampling device to perform multiple sampling operations. After the sampling is completed, the sampling device is closed by the control device 4, and then the oil return device is controlled to work, and the oil return device returns the oil in the oil temporary storage device 5 to the wind turbine gearbox; in this embodiment, the control device 4 includes but is not limited to intelligent terminals such as controllers, single-chip microcomputers, PC host computers, industrial computers or intelligent control panels. In this embodiment, the collection device and the sampling device can also work simultaneously under the control of the control device 4, and the specific situation is controlled according to the program writing of technical personnel in this field.

[0028] In this embodiment, the amount of oil collected by the collecting device in the oil temporary storage device 5 per unit time can be obtained according to the volume of the oil temporary storage device 5, the speed at which the collecting device, the oil return device and the sampling device extract the oil. Similarly, the amount of oil sampled by the sampling device per unit time and the amount of oil returned by the oil return device per unit time can be obtained. The control device 4 can reasonably control the closing and working time of the collecting device, the oil return device and the sampling device according to the data calculated above. The specific implementation method can be set in the control device 4 by a person skilled in the art according to a simple calculation. Since this process is not too related to the structure of the utility model and the implementation method is relatively simple, it will not be described in detail in this scheme.

[0029] Preferably, the collection device comprises: a first sampling tube 11, a first quick connector male head 12, a first quick connector female head 13, a first hydraulic oil pipe 14, a pressure reducing device 15, a second hydraulic oil pipe 16, a first oil pump 17, a third hydraulic oil pipe 18, a first solenoid valve 19 and a fourth hydraulic oil pipe 10;

[0030] One end of the first sampling tube 11 is connected to the interior of the wind turbine gearbox for obtaining the oil inside the wind turbine gearbox; the other end of the first sampling tube 11 is connected to one end of the first quick connector male 12; the other end of the first quick connector male 12 is connected to one end of the first quick connector female 13; the other end of the first quick connector female 13 is connected to one end of the first hydraulic oil pipe 14; the other end of the first hydraulic oil pipe 14 is connected to the input end of the pressure reducing device 15; the output end of the pressure reducing device 15 is connected to one end of the second hydraulic oil pipe 16; the other end of the second hydraulic oil pipe 16 is connected to the input end of the first oil pump 17; the output end of the first oil pump 17 is connected to one end of the third hydraulic oil pipe 18; the other end of the third hydraulic oil pipe 18 is connected to the input end of the first solenoid valve 19; the output end of the first solenoid valve 19 is connected to one end of the fourth hydraulic oil pipe 10; the other end of the fourth hydraulic oil pipe 10 is fixedly connected to the oil temporary storage device 5; the first oil pump 17 and the first solenoid valve 19 are electrically connected to the control device 4 respectively.

[0031] In the present embodiment, one end of the first sampling tube 11 passes through the side wall of the wind turbine gear box and is fixedly connected to the side wall of the wind turbine gear box; in the present embodiment, the fixed connection includes but is not limited to welding, bonding, detachable connection, etc. For example, a threaded through hole is provided on the side wall of the wind turbine gear box, and an external thread is provided on the outer wall of the first sampling tube 11, and the two are fixedly connected by threaded matching; technical personnel in this field can make a choice according to the specific material and application scenario.

[0032] In this embodiment, the quick connector male head, quick connector female head, and solenoid valve are all commonly used pipeline installation devices. Therefore, as to the connection method between them and the pipeline, those skilled in the art can connect the devices and the pipeline according to the practical instructions provided by the manufacturer of the selected equipment, and no further elaboration will be given here.

[0033] In this embodiment, the pressure reducing device 15 is used to prevent the connection between the input end and the output end of the first oil pump 17 and the oil pipe from being loosened due to excessive pressure when the first oil pump 17 is started.

[0034] Preferably, the pressure reducing device 15 is a pressure reducing valve.

[0035] In this embodiment, the pressure reducing valve is also a commonly used pipeline installation device. Therefore, as to the connection method between the pressure reducing valve and the pipeline, those skilled in the art can connect the device and the pipeline according to the practical instructions provided by the manufacturer of the selected equipment, and no further elaboration is made here.

[0036] Preferably, the oil temporary storage device 5 is a container; the interior of the container is hollow; an input end is provided at the upper end of the container; a first output end and a second output end are provided at the lower end of the container; the other end of the fourth hydraulic oil pipe 10 is fixedly connected to the input end of the container, and is connected to the interior of the container through the input end of the container.

[0037] In this embodiment, the container can be a metal container or a non-metal container, such as a box made of rubber, a box made of iron, and a shell, etc. The specific shape can be any shape, and the best choice is round or square.

[0038] In this embodiment, the interior of the oil temporary storage device 5 is hollow and is used to store oil. The specific implementation method is as follows: a threaded through hole is provided above the container as an input end, an external thread is provided on the fourth hydraulic oil pipe 10, and the connection is achieved by threaded matching; a cylindrical protrusion can also be provided above the container, and a through hole is provided on the upper surface of the cylindrical protrusion, and the diameter of the through hole is 1-2 mm larger than the diameter of the fourth hydraulic hose 10; the fourth hydraulic oil pipe 10 is connected to the oil temporary storage device 5 by sleeve connection, and two threaded through holes are provided below the container as the first output end and the second output end. A through hole can also be provided on the container as an input end, and the other end of the fourth hydraulic oil pipe 10 is connected to the inside of the container through the through hole, and then fixed by solder and glue. At the same time, the fourth hydraulic oil pipe 10 and the input end of the container can be integrally connected, and the outer diameter of the fourth hydraulic oil pipe 10 is adapted to the diameter of the through hole.

[0039] Preferably, the sampling device comprises: a sampling bottle 20, a first sampling oil pipe 21, a second oil pump 22, a second sampling oil pipe 23, a second solenoid valve 24 and a third sampling oil pipe 25;

[0040] One end of the first sampling oil pipe 21 is connected to the interior of the sampling bottle 20 for inputting the sampled oil into the sampling bottle 20; the other end of the first sampling oil pipe 21 is connected to the output end of the second oil pump 22; the input end of the second oil pump 22 is connected to one end of the second sampling oil pipe 23; the other end of the second sampling oil pipe 23 is connected to the output end of the second solenoid valve 24; the input end of the second solenoid valve 24 is connected to one end of the third sampling oil pipe 25; the other end of the third sampling oil pipe 25 is fixedly connected to the oil temporary storage device 5; the second oil pump 22 and the second solenoid valve 24 are electrically connected to the control device 4 respectively.

[0041] In this embodiment, the sampling bottle 20 is a bottle body, the interior of which is hollow and is used to store the sampled oil. A through hole is provided on the bottle body as an input end. One end of the first sampling oil pipe 21 is fixedly connected to the sampling bottle 20 through the input end of the sampling bottle 20 and is communicated with the interior of the sampling bottle 20. Similarly, a threaded through hole can also be provided as the input end of the sampling bottle 20, and an external thread can be provided on the first sampling oil pipe 21 to be connected through the above-mentioned fixed connection method.

[0042] In this embodiment, the electrical connection includes: connection through a metal conductor, including but not limited to copper wire, aluminum wire, etc.

[0043] Preferably, the oil temporary storage device 5 is a container; the interior of the container is hollow; an input end is provided at the upper end of the container; a first output end and a second output end are provided at the lower end of the container; the other end of the third sampling oil pipe 25 is fixedly connected to the first output end of the container, and is connected to the interior of the container through the first output end of the container.

[0044] In this embodiment, the third sampling oil pipe 25 is provided with an external thread, and the third sampling oil pipe 25 cooperates with the first output end thread to achieve a fixed connection. Similarly, some of the above-mentioned methods can be adopted, such as welding, bonding, integral connection, etc.

[0045] Preferably, the oil return device comprises: a first oil return pipe 31, a second quick connector male end 32, a second quick connector female end 33, a second oil return pipe 34, a third oil pump 35, a third oil return pipe 36, a third solenoid valve 37 and a fourth oil return pipe 38;

[0046] One end of the first oil return pipe 31 is connected to the interior of the wind turbine gearbox, and is used to return the oil to the wind turbine gearbox; the other end of the first oil return pipe 31 is connected to one end of the second quick connector male end 32; the other end of the second quick connector male end 32 is connected to one end of the second quick connector female end 33; the other end of the second quick connector female end 33 is connected to one end of the second oil return pipe 34; the other end of the second oil return pipe 34 is connected to the output end of the third oil pump 35; the input end of the third oil pump 35 is connected to one end of the third oil return pipe 36; the other end of the third oil return pipe 36 is connected to the output end of the third solenoid valve 37; the input end of the third solenoid valve 37 is connected to one end of the fourth oil return pipe 38; the other end of the fourth oil return pipe 38 is fixedly connected to the oil temporary storage device 5; the third solenoid valve 37 and the third oil pump 35 are electrically connected to the control device 4 respectively.

[0047] Preferably, the oil temporary storage device 5 is a container; the interior of the container is hollow; an input end is provided at the upper end of the container; a first output end and a second output end are provided at the lower end of the container; the other end of the fourth oil return pipe 38 is fixedly connected to the second output end of the container, and is connected to the interior of the container through the second output end of the container.

[0048] In this embodiment, the fourth oil return pipe 38 is provided with an external thread, and the fourth oil return pipe 38 cooperates with the first output end thread to achieve a fixed connection. Similarly, some of the above-mentioned methods can be used, such as welding, bonding, integral connection, etc.

[0049] In this embodiment, an exhaust hole is also provided at the upper end of the container (including the top and the upper side), and the exhaust hole is connected to the interior of the container to ensure that the pressure inside the container is the same as the external atmospheric pressure, thereby ensuring the normal operation of the semi-direct drive fan oil sampling device.

[0050] In this embodiment, the pressure reducing valve adopts Honeywell D06FN-1 / 2B anti-dezincification brass threaded pressure reducing valve.

[0051] Preferably, a liquid level detection device is provided inside the container, and the liquid level detection device is electrically connected to the control device 4 .

[0052] In this embodiment, the liquid level detection device adopts a liquid level sensor, through which the volume of the oil in the container can be detected, thereby more conveniently realizing automatic control of the semi-direct drive fan oil sampling device.

[0053] In this embodiment, the sampling pipe, hydraulic hose, sampling oil pipe and oil return pipe are made of metal, such as hot-dip cast iron pipe lined with plastic, copper pipe, stainless steel pipe, etc.; plastic-clad metal pipe, such as steel-plastic composite pipe, aluminum-plastic composite pipe, etc.; the third type is plastic pipe, such as PB pipe, PP-R pipe, etc. Those skilled in the art can choose from the pipes currently sold on the market according to the actual application environment.

[0054] The oil pump in this embodiment includes but is not limited to centrifugal pumps, gear pumps, multi-stage centrifugal pumps, screw pumps, reciprocating pumps, double-acting reciprocating pumps, piston pumps, hydraulic plunger pumps, mud pumps, pneumatic diaphragm pumps, axial flow pipeline pumps, self-priming pumps, vortex pumps, water ring vacuum pumps, etc., for example, MG204XK / DC24DM magnetic drive gear pumps.

[0055] One way of using the utility model is to first assemble the semi-direct drive wind turbine oil sampling device disclosed in the embodiment according to the assembly method disclosed in the utility model and the relevant instructions corresponding to the manufacturer, and then control the first oil pump 17 to work through the control device 4, and at the same time control the first solenoid valve 19 to open, and the oil inside the wind turbine gearbox is subjected to the force of the first oil pump 17, and the oil will flow along the first sampling pipe 11, the first quick connector male head 12, the first quick connector female head 13, the first hydraulic oil pipe 14, the pressure reducing device 15, the second hydraulic oil pipe 16, the first oil pump 17, the third hydraulic oil pipe 18, the first solenoid valve 19. and the fourth hydraulic oil pipe 10, flowing into the oil temporary storage device 5; the working time of the acquisition device can be controlled by the time set by the control device 4, and the start and stop of the acquisition device can also be controlled by the liquid level signal detected by the liquid level detection device. When the working time of the acquisition device reaches the preset time, or the liquid level of the oil in the oil temporary storage device 5 reaches the preset liquid level, the control device 4 controls the acquisition device to stop working, that is, controls the first oil pump 17 to stop running and the first solenoid valve 19 to close; at this time, when the staff needs to take samples, the control device 4 controls the second oil pump 22 to run, and the second solenoid valve 24 to open. Due to the oil The oil in the temporary storage device 5 is acted upon by the second oil pump 22, and the oil will reach the sampling bottle 20 along the third sampling oil pipe 25, the second solenoid valve 24, the second sampling oil pipe 23, the second oil pump 22 and the first sampling oil pipe 21. When the working time of the sampling device reaches a preset time, or the reduction amount of the oil level in the oil temporary storage device 5 reaches a preset value, the second oil pump 22 and the second solenoid valve 24 are controlled to be closed by the control device 4 (the collection device and the sampling device can also be controlled to work at the same time) to complete a single sampling. Similarly, the sampling device can be repeatedly controlled to work; when oil return is required, the control device 4 is used to control the oil return. The third solenoid valve 37 and the third oil pump 35 are controlled to open. Since the oil in the oil temporary storage device 5 is acted upon by the third oil pump 35, the oil will flow back to the interior of the wind turbine gearbox along the fourth return oil pipe 38, the third solenoid valve 37, the third return oil pipe 36, the third oil pump 35, the second return oil pipe 34, the second quick connector female end 33, the second quick connector male end 32 and the first return oil pipe 31. When the working time of the oil return device reaches the preset time, or the oil level in the oil temporary storage device 5 reaches the preset value, the third oil pump 35 and the third solenoid valve 37 are controlled to close through the control device 4 to complete the oil return.

[0056] In summary, the utility model realizes efficient and fast sampling by controlling the use state of the device, realizing the oil extraction and return process through sampling, sampling and oil return devices, reducing pressure through a pressure reducing device, and temporarily storing oil through an oil temporary storage device. The device can realize multiple sampling in a short time, has high sampling efficiency, high utilization rate of oil samples, and effectively avoids waste of oil samples.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the present invention.

Claims

1. A semi-direct drive fan oil sampling device, characterized in that: include: A collection device, an oil return device, a sampling device, a control device (4) and an oil temporary storage device (5); the oil temporary storage device (5) is connected to the collection device, the oil return device and the sampling device; the control device (4) is connected to the collection device, the oil return device and the sampling device; the control device (4) is used to control the collection device, the oil return device and the sampling device, so that the collection device collects oil from the wind turbine gearbox to the oil temporary storage device (5), the oil return device returns the oil in the oil temporary storage device to the wind turbine gearbox, and the sampling device samples from the oil temporary storage device (5).

2. The oil sampling device for a semi-direct drive fan according to claim 1 is characterized in that: The collection device comprises: a first sampling pipe (11), a first quick connector male end (12), a first quick connector female end (13), a first hydraulic oil pipe (14), a pressure reducing device (15), a second hydraulic oil pipe (16), a first oil pump (17), a third hydraulic oil pipe (18), a first solenoid valve (19) and a fourth hydraulic oil pipe (10); One end of the first sampling tube (11) is connected to the interior of the wind turbine gearbox and is used to obtain oil in the wind turbine gearbox; the other end of the first sampling tube (11) is connected to one end of a first quick connector male end (12); the other end of the first quick connector male end (12) is connected to one end of a first quick connector female end (13); the other end of the first quick connector female end (13) is connected to one end of a first hydraulic oil pipe (14); the other end of the first hydraulic oil pipe (14) is connected to the input end of a pressure reducing device (15); the output end of the pressure reducing device (15) is connected to a second hydraulic oil pipe The first hydraulic oil pipe (17) is connected to one end of the hydraulic oil pipe (16); the other end of the second hydraulic oil pipe (16) is connected to the input end of the first oil pump (17); the output end of the first oil pump (17) is connected to one end of the third hydraulic oil pipe (18); the other end of the third hydraulic oil pipe (18) is connected to the input end of the first solenoid valve (19); the output end of the first solenoid valve (19) is connected to one end of the fourth hydraulic oil pipe (10); the other end of the fourth hydraulic oil pipe (10) is fixedly connected to the oil temporary storage device (5); the first oil pump (17) and the first solenoid valve (19) are respectively electrically connected to the control device (4).

3. The oil sampling device for a semi-direct drive fan according to claim 2 is characterized in that: The pressure reducing device (15) is a pressure reducing valve.

4. The oil sampling device for a semi-direct drive fan according to claim 2 is characterized in that: The oil temporary storage device (5) is a container; the interior of the container is hollow; an input end is arranged at the upper end of the container; a first output end and a second output end are arranged at the lower end of the container; the other end of the fourth hydraulic oil pipe (10) is fixedly connected to the input end of the container, and communicates with the interior of the container through the input end of the container.

5. The oil sampling device for a semi-direct drive fan according to claim 1 is characterized in that: The sampling device comprises: a sampling bottle (20), a first sampling oil pipe (21), a second oil pump (22), a second sampling oil pipe (23), a second solenoid valve (24) and a third sampling oil pipe (25); One end of the first sampling oil pipe (21) is connected to the interior of the sampling bottle (20) for inputting the sampled oil into the sampling bottle (20); the other end of the first sampling oil pipe (21) is connected to the output end of the second oil pump (22); the input end of the second oil pump (22) is connected to one end of the second sampling oil pipe (23); the other end of the second sampling oil pipe (23) is connected to the output end of the second solenoid valve (24); the input end of the second solenoid valve (24) is connected to one end of the third sampling oil pipe (25); the other end of the third sampling oil pipe (25) is fixedly connected to the oil temporary storage device (5); the second oil pump (22) and the second solenoid valve (24) are electrically connected to the control device (4) respectively.

6. The oil sampling device for a semi-direct drive fan according to claim 5 is characterized in that: The oil temporary storage device (5) is a container; the interior of the container is hollow; an input end is arranged at the upper end of the container; a first output end and a second output end are arranged at the lower end of the container; the other end of the third sampling oil pipe (25) is fixedly connected to the first output end of the container, and communicates with the interior of the container through the first output end of the container.

7. The oil sampling device for a semi-direct drive fan according to claim 1 is characterized in that: The oil return device comprises: a first oil return pipe (31), a second quick joint male head (32), a second quick joint female head (33), a second oil return pipe (34), a third oil pump (35), a third oil return pipe (36), a third solenoid valve (37) and a fourth oil return pipe (38); One end of the first oil return pipe (31) is connected to the interior of the wind turbine gearbox and is used to return oil to the wind turbine gearbox; the other end of the first oil return pipe (31) is connected to one end of a second quick connector male head (32); the other end of the second quick connector male head (32) is connected to one end of a second quick connector female head (33); the other end of the second quick connector female head (33) is connected to one end of a second oil return pipe (34); the other end of the second oil return pipe (34) is connected to a third oil return pipe (34). The output end of the third oil pump (35) is connected to the output end of the third oil pump (35); the input end of the third oil pump (35) is connected to one end of the third oil return pipe (36); the other end of the third oil return pipe (36) is connected to the output end of the third solenoid valve (37); the input end of the third solenoid valve (37) is connected to one end of the fourth oil return pipe (38); the other end of the fourth oil return pipe (38) is fixedly connected to the oil temporary storage device (5); the third solenoid valve (37) and the third oil pump (35) are respectively electrically connected to the control device (4).

8. The oil sampling device for a semi-direct drive fan according to claim 7 is characterized in that: The oil temporary storage device (5) is a container; the interior of the container is hollow; an input end is arranged at the upper end of the container; a first output end and a second output end are arranged at the lower end of the container; the other end of the fourth oil return pipe (38) is fixedly connected to the second output end of the container, and communicates with the interior of the container through the second output end of the container.

9. A semi-direct drive fan oil sampling device according to any one of claims 4, 6 or 8, characterized in that: A liquid level detection device is arranged inside the container, and the liquid level detection device is electrically connected to the control device (4).

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