Oil drainage structure of fan hydraulic station

Abstract

The utility model discloses an oil drainage structure of a fan hydraulic station, and relates to the technical field of fan hydraulic stations. The oil drainage structure of the fan hydraulic station comprises an oil tank body, and the oil tank body is provided with an oil drainage channel; the supporting piece is arranged on the oil tank body and located on the outer side of the oil discharging channel, and a positioning plate is arranged on the supporting piece; the rotating shaft is rotatably arranged on the positioning plate, spiral blades extending in the axial direction of the rotating shaft are arranged on the outer wall of the rotating shaft, and a rotating driving assembly used for driving the rotating shaft to rotate around the axis of the rotating shaft is further arranged on the positioning plate; the lifting driving assembly is arranged on the supporting piece and used for driving the positioning plate to move in a lifting mode so that the rotating shaft can selectively enter the oil discharging channel, and hydraulic oil in the oil discharging channel can be discharged through rotation of the rotating shaft.

Description

Technical Field

[0001] The present application relates to the technical field of fan hydraulic stations, and in particular to an oil discharge structure of a fan hydraulic station. Background Art

[0002] The fan hydraulic station is a hydraulic device that converts mechanical energy into hydraulic energy and transmits it to the actuator. The fan hydraulic station can provide the hydraulic pressure required for the wind turbine blades to rotate, ensuring that the blades can operate normally and realizing the effective conversion of wind energy. During the operation of the hydraulic system, due to various factors (such as high temperature, oxidation, impurity pollution, etc.), the hydraulic oil will gradually age and deteriorate, and may be mixed with impurities, thus affecting the normal operation of the hydraulic system. And during the maintenance and replacement of parts of the hydraulic system, it may be necessary to drain the oil in the hydraulic system cleanly in order to carry out necessary maintenance work. At this time, it is necessary to drain the old oil through the oil drain port to ensure the stability and reliability of the hydraulic system.

[0003] However, in the prior art, the oil drain port of the hydraulic station is usually set at the bottom or side wall of the oil tank, and relies on the fluidity of the hydraulic oil to achieve automatic drainage. However, the hydraulic oil may be aged, deformed, or mixed with impurities, which affects its fluidity, resulting in slow hydraulic oil discharge and poor discharge effect. Utility Model Content

[0004] The main purpose of the present application is to provide an oil discharge structure for a fan hydraulic station, aiming to solve the technical problems in the prior art that the hydraulic oil may be aged, deformed or mixed with impurities, affecting its fluidity, and having a slow hydraulic oil discharge speed and poor discharge effect.

[0005] To achieve the above-mentioned purpose, the present application provides an oil discharge structure of a fan hydraulic station, including an oil tank body, the oil tank body having an oil discharge channel; a support member, which is arranged on the oil tank body and is located outside the oil discharge channel, and a positioning plate is arranged on the support member; a rotating shaft, which is rotatably arranged on the positioning plate, and the outer wall of the rotating shaft is provided with spiral blades extending along its axial direction, and the positioning plate is also provided with a rotating drive component for driving the rotating shaft to rotate around its own axis; a lifting drive component, which is arranged on the support member, and is used to drive the positioning plate to lift and move, so that the rotating shaft can selectively enter the oil discharge channel, and the hydraulic oil in the oil discharge channel is discharged by rotating the rotating shaft.

[0006] Optionally, the rotary drive assembly includes a gearbox, a fixed plate, a motor, a driving wheel and a driven wheel; the gearbox is arranged on the positioning plate, the fixed plate is arranged in the gearbox, the lower end of the rotating shaft is rotatably connected to the fixed plate, the upper end of the rotating shaft passes through the outer wall of the gearbox, the motor is arranged in the gearbox, the driving wheel is sleeved on the output shaft of the motor, and the driven wheel is sleeved on the rotating shaft and meshes with the driving wheel.

[0007] Optionally, the rotary drive assembly also includes a drainage cover, the first end of which is connected to the outer wall of the gear box, the second end of which is an open structure, the second end of which is used to cooperate with the oil drainage channel, and the side wall of the drainage cover is provided with an oil drainage interface.

[0008] Optionally, a sealing ring is provided between the second end of the guide cover and the oil discharge channel.

[0009] Optionally, a positioning ring for cooperating with the end of the rotating shaft is provided in the oil discharge channel, and the positioning ring is connected to the inner wall of the oil discharge channel via a connecting rod.

[0010] Optionally, the lifting drive assembly includes a hydraulic cylinder, a slide rail and a slide seat; the slide rail is arranged on the support member, the extension direction of the slide rail is parallel to the axial direction of the oil drainage channel, the positioning plate is connected to the slide seat, the slide seat is used to cooperate with the slide rail and can move along its extension direction, the hydraulic cylinder is arranged on the support member, and the telescopic shaft of the hydraulic cylinder is interconnected with the slide seat.

[0011] Optionally, one end of the support member is hinged to the outer wall of the tank body and the other end is a free end. The outer wall of the tank body is also provided with an adjustment component, and the adjustment component is used to drive the free end of the support member to rotate around the hinged end.

[0012] Optionally, the adjustment assembly includes a reel, a fixed pulley and a pull rope; the reel and the fixed pulley are arranged on the outer wall of the tank body, one end of the pull rope is connected to the reel, and the other end of the pull rope is wrapped around the fixed pulley and then connected to the free end of the support member.

[0013] Optionally, the outer wall of the support member is provided with two side panels distributed side by side, and one side wall of the two side panels facing each other is provided with a slide groove, and both ends of the slide groove along the extension direction thereof are provided with lock holes;

[0014] A limit rod, the upper end of which is hinged to the oil tank body, and the lower end of which is provided with a guide column, the two ends of which are respectively located in the slide groove and can move along its extension direction, the limit rod is provided with a receiving groove, the receiving groove is provided with a locking pin, and the locking pin can move laterally to selectively enter the locking hole.

[0015] Optionally, both ends of the guide column have through holes connected to the accommodating groove, the through holes are for the locking pin to pass through, and a compression spring is arranged between the two locking pins.

[0016] Beneficial effects that this application can achieve:

[0017] The embodiment of the present application proposes an oil discharge structure of a fan hydraulic station, in which the outer wall of the rotating shaft is provided with spiral blades extending along its axial direction, and the outer wall of the spiral blades matches the inner wall of the oil discharge channel. The rotation of the rotating shaft can be controlled by a rotating drive component, and the spiral blades rotate synchronously with the rotating shaft, thereby squeezing and discharging the hydraulic oil in the oil discharge channel and the oil tank body. The discharge efficiency of the hydraulic oil can be controlled in real time by controlling the rotation speed of the rotating shaft. Because the hydraulic oil is discharged by spiral blade squeezing, even if the hydraulic oil is aged, deteriorated, or mixed with impurities and its fluidity becomes poor, it will not affect the normal discharge of the hydraulic oil; through the lifting drive component, the rotating shaft can be extended into the oil discharge channel and moved out of the oil discharge channel. The rotating shaft can be extended into the oil discharge channel only when the oil needs to be discharged, and it will not affect the normal use of the oil tank body at other times. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of a first state of the oil discharge structure of a fan hydraulic station according to an embodiment of the present application;

[0019] Figure 2 It is a partial schematic diagram of the connection between the rotating shaft and the rotating drive assembly of the embodiment of the present application;

[0020] Figure 3 A schematic diagram of a second state of the oil discharge structure of a fan hydraulic station according to an embodiment of the present application;

[0021] Figure 4 A schematic diagram of a third state of the oil discharge structure of the fan hydraulic station according to an embodiment of the present application;

[0022] Figure 5 It is a side sectional schematic diagram of the side plate and the limiting rod.

[0023] In the figure:

[0024] 10-tank body, 11-oil discharge channel, 12-positioning ring, 13-connecting rod, 20-support, 30-positioning plate, 40-rotating shaft, 41-spiral blade, 50-rotation drive assembly, 51-motor, 52-fixed plate, 53-driving wheel, 54-driven wheel, 55-gear box, 56-drainage cover, 57-oil discharge interface, 58-sealing ring, 60-lifting drive assembly, 61-hydraulic cylinder, 62-slide rail, 63-slide seat, 70-adjusting assembly, 71-pull rope, 72-retractor, 73-fixed pulley, 80-limiting rod, 81-guide column, 82-lock pin, 83-compression spring, 90-side plate, 91-slide groove, 92-lock hole.

[0025] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0030] Example 1

[0031] Reference Figure 1-Figure 5 ,in, Figure 1 It is a schematic diagram of the state when the shaft is located in the oil discharge channel; Figure 3 is Figure 1 On the basis of, the positioning plate moves vertically downward, and the rotating shaft moves outside the oil discharge channel; Figure 4 is Figure 3 Schematic diagram of the support member after it is rotated to the right a certain angle around the hinge point at its upper end.

[0032] The first embodiment of the present application provides an oil discharge structure of a fan hydraulic station, including an oil tank body 10 , a support member 20 , a rotating shaft 40 , a rotating drive assembly 50 and a lifting drive assembly 60 .

[0033] The oil tank body 10 is a component of the fan hydraulic station for accommodating hydraulic oil. The oil tank body 10 has an oil drain passage 11. The oil drain passage 11 can be set at the lower end of the oil tank body 10, or at the side wall of the oil tank body 10 (not shown in the figure). The lower end of the oil drain passage 11 can protrude from the lower end outer wall of the oil tank body 10.

[0034] The support member 20 is disposed on the oil tank body 10 and is located outside the oil discharge channel 11. A positioning plate 30 is disposed on the support member 20. The plane where the positioning plate 30 is located is parallel to the plane where the support plate is located.

[0035] The rotating shaft 40 is rotatably disposed on the positioning plate 30. The outer wall of the rotating shaft 40 is provided with spiral blades 41 extending along its axial direction. The positioning plate 30 is also provided with a rotating drive component 50 for driving the rotating shaft 40 to rotate around its own axis; the axis of the rotating shaft 40 is colinear with the axis of the oil discharge channel 11.

[0036] The lifting drive assembly 60 is disposed on the support member 20 and is used to drive the positioning plate 30 to move up and down so that the rotating shaft 40 can selectively enter the oil discharge channel 11 and the hydraulic oil in the oil discharge channel 11 is discharged by rotating the rotating shaft 40 .

[0037] In this embodiment, when the rotating shaft 40 is located in the oil drain channel 11, the upper end of the spiral blade 41 can be located in the oil drain channel 11, or it can be located at the upper end of the oil drain channel 11, that is, it extends into the oil tank body 10. The hydraulic oil in the oil tank body 10 accumulates at the lower end of the oil tank body 10 under the action of gravity. Due to the aging, deterioration or contamination of other impurities of the hydraulic oil, the fluidity of the hydraulic oil deteriorates. The area of ​​the pipe mouth of the oil drain channel 11 is small, and the hydraulic oil cannot smoothly enter the oil drain channel 11, or the flow speed of the hydraulic oil is slow, which is not conducive to the rapid discharge of the hydraulic oil. By rotating the spiral blade 41, the hydraulic oil can be squeezed and pushed to move in the oil drain channel 11. Since the hydraulic oil is extruded, it does not rely on the fluidity of the hydraulic oil itself, and the hydraulic oil can be quickly discharged.

[0038] Example 2

[0039] As an optional implementation, refer to Figure 2 A fan hydraulic station oil discharge structure of this embodiment provides a specific structure of a rotary drive component 50, which includes a gear box 55, a fixed plate 52, a motor 51, a driving wheel 53 and a driven wheel 54; the gear box 55 is arranged on the positioning plate 30, the fixed plate 52 is arranged in the gear box 55, the lower end of the rotating shaft 40 is rotatably connected to the fixed plate 52, the upper end of the rotating shaft 40 passes through the outer wall of the gear box 55, the motor 51 is arranged in the gear box 55, the driving wheel 53 is sleeved on the output shaft of the motor 51, and the driven wheel 54 is sleeved on the rotating shaft 40 and meshed with the driving wheel 53.

[0040] In this embodiment, the fixing plate 52, the motor 51, the driving wheel 53 and the driven wheel 54 are arranged in the gear box 55 to prevent the hydraulic oil from entering the gear box 55 and affecting the normal operation of the gears. The fixing plate 52 is arranged in the gear box 55, and the fixing plate 52 plays an auxiliary supporting role for the rotating shaft 40. The fixing plate 52 cooperates with the gear box 55 to keep the rotating shaft 40 in a vertical state. A sealing structure is arranged between the rotating shaft 40 and the gear box 55 to prevent the hydraulic oil from entering the gear box 55 from the gap between the rotating shaft 40 and the gear box 55. The fixing plate 52 is provided with a mounting hole for the rotating shaft 40 to pass through, and a bearing can be arranged in the mounting hole to improve the stability of the rotation of the rotating shaft 40.

[0041] Example 3

[0042] As an optional implementation, refer to Figure 2The oil discharge structure of the fan hydraulic station of this embodiment provides a protective structure of a rotary drive assembly 50, and the rotary drive assembly 50 also includes a drainage cover 56, the first end of the drainage cover 56 is connected to the outer wall of the gear box 55, the second end of the drainage cover 56 is an open structure, the second end of the drainage cover 56 is used to cooperate with the oil discharge channel 11, and the side wall of the drainage cover 56 is provided with an oil discharge interface 57. A sealing ring 58 is provided between the second end of the drainage cover 56 and the oil discharge channel 11.

[0043] In this embodiment, before the drainage cover 56 is provided, the hydraulic oil discharged from the oil discharge channel 11 directly falls onto the gear box 55, which may cause the hydraulic oil to splash everywhere and be difficult to clean; after the drainage cover 56 is provided, the hydraulic oil dropped from the oil discharge channel 11 first enters the drainage cover 56, and when the hydraulic oil discharged is small, it can be stored in the drainage cover 56, or it can be exported through the oil discharge interface 57 provided on the drainage cover 56, effectively avoiding the problem of hydraulic oil splashing everywhere and being difficult to clean. A sealing ring 58 is provided between the drainage cover 56 and the oil discharge channel 11, which seals the hydraulic oil contained in the drainage cover 56 and prevents the hydraulic oil from leaking from the gap between the drainage cover 56 and the oil discharge channel 11. The drainage cover 56 can be set outside the oil discharge channel 11, and the sealing ring 58 is set between the inner wall of the drainage cover 56 and the outer wall of the oil discharge channel 11; similarly, the drainage cover 56 can also be set in the oil discharge channel 11, and the sealing ring 58 is set between the outer wall of the drainage cover 56 and the inner wall of the oil discharge channel 11, and an annular groove is set on the side wall of the drainage cover 56, and the sealing ring 58 is set in the groove.

[0044] Example 4

[0045] As an optional implementation, refer to Figure 1 , Figure 3 and Figure 4 A fan hydraulic station oil discharge structure of this embodiment provides an auxiliary support structure for a rotating shaft 40. Specifically, a positioning ring 12 for cooperating with the end of the rotating shaft 40 is provided in the oil discharge channel 11, and the positioning ring 12 is connected to the inner wall of the oil discharge channel 11 through a connecting rod 13.

[0046] In this embodiment, when the rotating shaft 40 moves upward, the upper end of the rotating shaft 40 enters into the positioning ring 12, and the positioning ring 12 limits the rotating shaft 40 to prevent lateral deviation of the rotating shaft 40 and improve the stability of the rotating shaft 40 during rotation. The positioning ring 12 can be a bearing structure.

[0047] Example 5

[0048] As an optional implementation, refer to Figure 1 , Figure 3 and Figure 4The oil discharge structure of a fan hydraulic station of the present application provides a specific structure of a lifting drive assembly 60, specifically: the lifting drive assembly 60 includes a hydraulic cylinder 61, a slide rail 62 and a slide seat 63; the slide rail 62 is arranged on the support member 20, and the extension direction of the slide rail 62 is parallel to the axial direction of the oil discharge channel 11, the positioning plate 30 is connected to the slide seat 63, the slide seat 63 is used to cooperate with the slide rail 62 and can move along its extension direction, the hydraulic cylinder 61 is arranged on the support member 20, and the telescopic shaft of the hydraulic cylinder 61 is connected to the slide seat 63.

[0049] In this embodiment, the cross-sectional shape of the slide rail 62 may be a dovetail or T-shaped, and the slide seat 63 may have a dovetail groove or a T-shaped groove that matches the slide rail 62; the slide rail 62 may also be a guide rod with two axes parallel to each other, and a through hole for the guide rod to pass through is provided on the slide seat 63. The slide rail 62 and the slide seat 63 cooperate to limit the moving path of the slide seat 63, and a blocking plate may be provided at the lower end of the slide rail 62 to limit the maximum stroke of the slide seat 63. The hydraulic cylinder 61 may also have a telescopic cylinder.

[0050] Example 6

[0051] As an optional implementation, refer to Figure 1 , Figure 3 and Figure 4 A fan hydraulic station oil discharge structure of this embodiment provides a specific structure of a support member 20, specifically: one end of the support member 20 is hinged to the outer wall of the oil tank body 10, and the other end is a free end. The outer wall of the oil tank body 10 is also provided with an adjustment component 70, and the adjustment component 70 is used to drive the free end of the support member 20 to rotate around the hinged end.

[0052] In this embodiment, by hingedly connecting the upper end of the support member 20 to the oil tank body 10, the lower end of the support member 20 can rotate around the upper end of the support member 20, thereby reducing the height of the oil discharge structure in the vertical direction to a certain extent, making it in a horizontally inclined state, and improving the reasonable utilization rate of the space; at the same time, the structures such as the rotating shaft 40 located on the support member 20 are also moved to one side of the oil discharge channel 11, and the rotating shaft 40 and the spiral blades 41 will not occupy the oil discharge channel 11, leaving sufficient operating space for the oil discharge channel 11 to avoid affecting the normal use of the oil tank body 10.

[0053] Example 7

[0054] As an optional implementation, refer to Figure 1 , Figure 3 and Figure 4A fan hydraulic station oil discharge structure of this embodiment provides a specific structure of an adjustment component 70, specifically: the adjustment component 70 includes a reel 72, a fixed pulley 73 and a pull rope 71; the reel 72 and the fixed pulley 73 are arranged on the outer wall of the oil tank body 10, one end of the pull rope 71 is connected to the reel 72, and the other end of the pull rope 71 is connected to the free end of the support member 20 after being wound around the fixed pulley 73.

[0055] In this embodiment, the free end of the support member 20 rotates around its hinged end through the cooperation of the retractor 72, the fixed pulley 73 and the pull rope 71. When the retractor 72 slowly releases the pull rope 71, the support member 20 automatically rotates downward under the action of gravity. The retractor 72 can be an electric hoist or a winch.

[0056] Example 8

[0057] As an optional implementation, refer to Figure 1 , Figure 3-Figure 5 A fan hydraulic station oil discharge structure of the present application provides a limiting structure of a support member 20, specifically: the outer wall of the support member 20 is provided with two side plates 90 distributed side by side, and a side wall facing the two side plates 90 is provided with a slide groove 91, and the slide groove 91 is provided with locking holes 92 at both ends along its extension direction; a limiting rod 80, the upper end of which is hinged to the oil tank body 10, and the lower end of which is provided with a guide column 81, the two ends of the guide column 81 are respectively located in the slide groove 91 and can move along its extension direction, and the limiting rod 80 is provided with a accommodating groove, and the accommodating groove is provided with a locking pin 82, and the locking pin 82 can move laterally to selectively enter the locking hole 92.

[0058] In this embodiment, two side plates 90 are arranged parallel to each other on the side wall of the support member 20, and the distance between the two side plates 90 is greater than the outer diameter of the limit rod 80. The upper end of the limit rod 80 is hinged on the outer wall of the fuel tank body 10 (the hinge axis of the limit rod 80 is located above the hinge axis of the support member 20), and the lower end of the limit rod 80 is located between the two side plates 90. The lower end of the limit rod 80 is provided with a guide column 81, and the two ends of the guide column 81 are respectively located in the slide grooves 91 of the two side plates 90. When the support member 20 rotates around its hinge end, the guide column 81 moves along the slide groove 91. When the support member 20 moves to a vertical state ( Figure 1 and Figure 3 As shown), the locking pin 82 of the guide column 81 cooperates with the locking hole 92 on one side of the slide groove 91 ( Figure 5 As shown in FIG. 1 , when the locking pin 82 is located in the locking hole 92, the support member 20 is limited to limit the left and right movement of the support member 20, thereby improving the stability of the rotation of the rotating shaft 40. At this time, a limit plate can be set on the left side of the limit rod 80 to limit the maximum travel position of the limit rod 80 to the left. When the support member 20 rotates rightward from the vertical state ( Figure 4As shown in the figure, the support column moves along the slide groove 91. When the support column moves to the locking hole 92 located below, the locking pin 82 enters the locking hole 92 (not shown in the figure) to complete the locking, thereby playing a role in assisting the fixing of the support member 20 and improving the stability of the support member 20 when it is in a tilted state.

[0059] Example 9

[0060] As an optional implementation, refer to Figure 5 The oil discharge structure of a fan hydraulic station of the present application provides a specific structure of a lock pin 82, specifically: both ends of the guide column 81 have through holes connected to the accommodating groove, the through holes are for the lock pin 82 to pass through, and a compression spring 83 is arranged between the two lock pins 82.

[0061] In this embodiment, by arranging a compression spring 83 between the two locking pins 82, the two locking pins 82 always have a tendency to move in a direction away from each other. When the guide column 81 moves to align the locking pin 82 with the lock hole 92, the locking pin 82 can automatically pop out and enter the lock hole 92 under the action of the compression spring 83 to complete the locking. The lock hole 92 can penetrate the outer wall of the side plate 90. When unlocking is required, an external force can be applied to the outer ends of the two locking pins 82 to move in a direction close to each other, so that the locking pin 82 exits the lock hole 92, and the unlocking is completed. Similarly, an electromagnet can also be arranged in the guide column 81 between the two locking pins 82. When the electromagnet is energized, the electromagnet attracts the two locking pins 82 to move in a direction close to each other, so as to exit the lock hole 92, and the unlocking is completed.

[0062] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A fan hydraulic station oil discharge structure, comprising an oil tank body, wherein the oil tank body has an oil discharge channel, characterized in that: Also includes: A support member is provided on the oil tank body and is located outside the oil discharge passage, and a positioning plate is provided on the support member; A rotating shaft is rotatably arranged on the positioning plate, the outer wall of the rotating shaft is provided with spiral blades extending along its axial direction, and the positioning plate is also provided with a rotation driving component for driving the rotating shaft to rotate around its own axis; The lifting drive assembly is arranged on the support member and is used to drive the positioning plate to move up and down so that the rotating shaft can selectively enter the oil discharge channel and the hydraulic oil in the oil discharge channel is discharged by rotating the rotating shaft.

2. The oil discharge structure of the fan hydraulic station according to claim 1, characterized in that: The rotary drive assembly includes a gear box, a fixed plate, a motor, a driving wheel and a driven wheel; The gear box is arranged on the positioning plate, the fixing plate is arranged in the gear box, the lower end of the rotating shaft is rotatably connected to the fixing plate, the upper end of the rotating shaft passes through the outer wall of the gear box, the motor is arranged in the gear box, the driving wheel is sleeved on the output shaft of the motor, and the driven wheel is sleeved on the rotating shaft and meshed with the driving wheel.

3. The oil discharge structure of the fan hydraulic station according to claim 2, characterized in that: The rotary drive assembly also includes a drainage cover, a first end of which is connected to the outer wall of the gear box, a second end of which is an open structure, and the second end of which is used to cooperate with the oil drainage channel. The side wall of the drainage cover is provided with an oil drainage interface.

4. The oil discharge structure of the fan hydraulic station according to claim 3, characterized in that: A sealing ring is arranged between the second end of the guide cover and the oil discharge channel.

5. The oil discharge structure of the fan hydraulic station according to any one of claims 1 to 4, characterized in that: A positioning ring for cooperating with the end of the rotating shaft is arranged in the oil discharge passage, and the positioning ring is connected to the inner wall of the oil discharge passage via a connecting rod.

6. The oil discharge structure of a fan hydraulic station according to any one of claims 1 to 4, characterized in that: The lifting drive assembly includes a hydraulic cylinder, a slide rail and a slide seat; The slide rail is arranged on the support member, and the extension direction of the slide rail is parallel to the axial direction of the oil discharge channel. The positioning plate is connected to the slide seat, and the slide seat is used to cooperate with the slide rail and can move along its extension direction. The hydraulic cylinder is arranged on the support member, and the telescopic shaft of the hydraulic cylinder is interconnected with the slide seat.

7. The oil discharge structure of a fan hydraulic station according to any one of claims 1 to 4, characterized in that: One end of the support is hinged to the outer wall of the oil tank body, and the other end is a free end. The outer wall of the oil tank body is also provided with an adjustment component, and the adjustment component is used to drive the free end of the support to rotate around the hinged end.

8. The oil discharge structure of the fan hydraulic station according to claim 7, characterized in that: The adjustment assembly includes a retractor, a fixed pulley and a pull rope; The retractor and the fixed pulley are arranged on the outer wall of the oil tank body, one end of the pull rope is connected to the retractor, and the other end of the pull rope is connected to the free end of the support member after being wound around the fixed pulley.

9. The oil discharge structure of the fan hydraulic station according to claim 7, characterized in that: The outer wall of the support member is provided with two side panels arranged side by side, and one side wall of the two side panels facing each other is provided with a slide groove, and the two ends of the slide groove along the extension direction thereof are provided with lock holes; A limit rod, the upper end of which is hinged to the oil tank body, and the lower end of which is provided with a guide column, the two ends of which are respectively located in the slide groove and can move along its extension direction, the limit rod is provided with a receiving groove, the receiving groove is provided with a locking pin, and the locking pin can move laterally to selectively enter the locking hole.

10. The oil discharge structure of the fan hydraulic station according to claim 9, characterized in that: Both ends of the guide column are provided with through holes communicated with the accommodating groove, the through holes are for the locking pins to pass through, and a compression spring is arranged between the two locking pins.

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