Unit anemograph lifting maintenance device and working method

Abstract

The invention discloses a unit anemograph lifting maintenance device and a working method, the unit anemograph lifting maintenance device comprises a lifting cylinder, a fixed cylinder and a lifting tooth group unit, an anemograph body is fixed at the top end of the lifting cylinder, one part of the fixed cylinder is located outside a cabin, the other part of the fixed cylinder is located inside the cabin, and the lifting cylinder is driven by the lifting tooth group unit to move up and down. The lifting tooth set unit is installed at the notch in the lower portion of the fixing cylinder, when the lifting cylinder descends, a maintainer enters the fixing cylinder from the notch to maintain the anemograph body in the lifting cylinder, the anemograph can be stored in a cabin for maintenance, and safety is higher; and after maintenance is completed, the anemograph body can be lifted again to be exposed out of the cabin, so that the operation efficiency is higher.

Description

Technical Field

[0001] The invention belongs to the technical field of wind turbine power generation, and in particular relates to a lifting and repairing device for an anemometer of a unit and a working method. Background Art

[0002] Wind energy is a clean renewable energy source. Wind power generation refers to converting the kinetic energy of wind into electrical energy. The anemometer on the top of the nacelle used to measure wind speed is generally a cup anemometer. The anemometer plays a vital role in wind turbines. It can monitor wind speed in real time and provide key data for the operation of wind turbines.

[0003] At present, the anemometers of most wind turbines are installed on a fixed bracket at the rear of the cabin. The anemometer is installed at a high position and has a folding structure. When the anemometer is inspected and maintained, two maintenance personnel need to go out of the cabin to complete the work. There are great safety hazards. The operating space at the rear of the cabin is small, which seriously affects the operating efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a lifting and maintenance device and a working method for an anemometer of a unit, so as to overcome the safety problem caused by the anemometer maintenance outside the cabin in the prior art.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions: A lifting and maintenance device for an anemometer of a unit, comprising a fixing cylinder and a lifting cylinder, wherein one end of the fixing cylinder is arranged outside the engine room, and the other end is arranged inside the engine room; The anemometer body is installed at the top of the lifting cylinder, and the lifting cylinder is arranged in the fixed cylinder. A notch is opened at the lower part of the side wall of the fixed cylinder, and a lifting gear unit is installed at the notch. The lifting gear unit drives the lifting cylinder to move up and down.

[0006] Furthermore, the straight lifting gear unit includes a linear rack and a driving gear, the linear rack is installed on the outer surface of the lifting cylinder, and the driving gear and the linear rack are meshed with each other.

[0007] Furthermore, the linear rack is arranged along the length direction of the lifting cylinder.

[0008] Furthermore, a support plate is provided below the driving gear, the driving gear is rotatably connected to the support plate, and a handle is installed at one end of the driving gear.

[0009] Furthermore, a positioning guide groove is provided on the inner side wall of the fixing cylinder, and positioning protrusions for being inserted into the positioning guide groove are provided on both side walls of the lifting cylinder, and the positioning protrusions are slidably connected to the positioning guide groove.

[0010] Furthermore, one end of the positioning protrusion away from the lifting cylinder is an arc surface.

[0011] Furthermore, positioning holes are provided at the upper and lower ends of the lifting cylinder, and elastic locking pins for inserting into the positioning holes are installed on the outer surface of the fixing cylinder.

[0012] Furthermore, a rain cover is installed on the top of the fixing tube, and the rain cover covers the top of the anemometer body.

[0013] Furthermore, the diameter of the rain cover is larger than the diameter of the fixing tube.

[0014] In a second aspect, a working method of a unit anemometer lifting and maintenance device comprises the following steps: The lifting gear unit at the notch at the lower part of the side wall of the fixed cylinder drives the lifting cylinder to descend, so that the lifting cylinder is completely in the cabin; The maintenance personnel inspect the anemometer body at the top of the lifting cylinder through the notch in the lower part of the side wall of the fixed cylinder.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects: The present invention provides a lifting and maintenance device for an anemometer of a unit, comprising a lifting cylinder, a fixed cylinder and a lifting gear unit, wherein an anemometer body is fixed at the top of the lifting cylinder, a part of the fixed cylinder is located outside a cabin, and the other part is located inside the cabin, and the lifting cylinder is driven up and down by the lifting gear unit, and the lifting gear unit is installed at a notch at the lower part of the fixed cylinder. When the lifting cylinder is lowered, maintenance personnel enter the fixed cylinder from the notch to repair the anemometer body in the lifting cylinder. The present invention can put the anemometer into the cabin for maintenance, thereby improving operation safety and working efficiency.

[0016] Preferably, the lifting gear unit drives the lifting cylinder to move up and down through gear meshing, which has high transmission efficiency, long service life, stable transmission and high reliability.

[0017] Preferably, in addition to the electric drive, the driving gear is also equipped with a handle at one end to improve the redundancy and reliability of the system.

[0018] Preferably, positioning holes are provided at the upper and lower parts of the outer wall of the lifting cylinder, and an elastic locking pin is installed on the outer surface of the fixing cylinder, so that the lifting cylinder is more stable, and the elastic locking pin supports the lifting cylinder. Preferably, a rain cover is provided at the top of the fixed cylinder, and the diameter of the rain cover is made larger than the diameter of the fixed cylinder, thereby preventing rainwater from flowing into the cabin through the gap between the fixed cylinder and the lifting cylinder; at the same time, it also prevents the anemometer body from contacting rainwater, resulting in inaccurate wind speed monitoring.

[0019] The present invention provides a working method of a lifting and maintenance device for an anemometer of an engine unit. A fixed cylinder is arranged to connect the inside and outside of a cabin, and a lifting gear unit drives the lifting cylinder to be retracted into the cabin along the fixed cylinder. The anemometer body located at the top of the lifting cylinder can be directly contacted and maintained by the staff in the cabin, which has higher safety. After the maintenance is completed, the anemometer body can be lifted up again to be exposed outside the cabin, which has higher operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of a lifting and repairing device for an anemometer of a unit provided by an embodiment of the present invention when extended; Figure 2 A schematic diagram of a lifting and maintenance device for an anemometer of a unit provided by an embodiment of the present invention when it is lowered for maintenance; Figure 3 It is a cross-sectional view of the connection between the fixed cylinder and the lifting cylinder in an embodiment of the present invention.

[0021] Among them, 1. Anemometer body; 2. Lifting cylinder; 21. Positioning hole; 22. Positioning protrusion; 3. Fixing cylinder; 31. Notch; 32. Positioning guide groove; 4. Lifting gear unit; 41. Linear gear rail; 42. Driving gear; 5. Cabin; 6. Elastic locking pin; 7. Support plate; 8. Handle; 9. Rain cover. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0023] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0024] The present invention provides a lifting and repairing device for anemometer of a unit, such as Figure 1As shown, it includes a lifting cylinder 2, which is sleeved in a fixed cylinder 3, and an anemometer body 1 is fixed at the top of the lifting cylinder 2. The upper end of the lifting cylinder 2 is not open and is a closed structure; the fixed cylinder 3 passes through the cabin 5, that is, a part of the fixed cylinder 3 is located outside the cabin 5, and the other part is located inside the cabin 5. There are no end covers at the upper and lower ends of the fixed cylinder 3, which is convenient for the falling of the lifting cylinder 2 and the rising of the anemometer body 1; the up and down movement of the lifting cylinder 2 is driven by the lifting gear group unit 4, and the lifting gear group unit 4 is installed at the notch 31 at the lower part of the fixed cylinder 3. When the lifting cylinder 2 is lowered, the maintenance personnel enter the fixed cylinder 2 from the notch 31 to repair the anemometer body 1 in the lifting cylinder 2.

[0025] The device involved in the present invention drives the lifting cylinder 2 to be retracted into the cabin 5 along the fixed cylinder 3 through the lifting gear unit 4. The anemometer body 1 located at the top of the lifting cylinder 2 can be directly touched and maintained by the staff in the cabin 5, avoiding the safety hazards caused by the maintenance personnel standing outside the cabin 5 to work, and also improving the working efficiency.

[0026] Specifically, the lifting gear unit 4 includes a linear rack 41 and a driving gear 42, wherein the linear rack 41 is arranged in the length direction of the outer wall of the lifting cylinder 2, and the driving gear 42 is used to engage with the linear rack 41 to drive the lifting cylinder 2 to move up and down. The driving gear 42 is installed on the support plate 7, and the two are rotatably connected. The support plate 7 is installed at the lower part of the fixed cylinder 3.

[0027] In one embodiment of the present invention, at least one positioning protrusion 22 is provided on the vertical direction of the outer wall of the lifting cylinder 2. Similarly, at least one guide groove 32 is opened on the inner wall of the fixed cylinder 3 at a position corresponding to the lifting cylinder 2, and the positioning protrusion 22 is inserted into the guide groove 32. In addition, the side of the positioning protrusion 22 away from the lifting cylinder 2 is an arc surface, which greatly reduces the friction resistance between the positioning protrusion 22 and the guide groove 32.

[0028] In another embodiment of the present invention, positioning holes 21 are opened at the upper and lower parts of the lifting cylinder 2, and the positioning holes 21 are through holes. Correspondingly, elastic locking pins 6 for inserting into the positioning holes 21 are installed on the outer surface of the fixed cylinder 3. Similarly, the positions of the elastic locking pins 6 are horizontal and the number is the same as the positioning holes 21, and through holes with the same horizontal position as the positioning holes 21 of the lifting cylinder 2 are also opened on the side walls of the fixed cylinder 3.

[0029] In another embodiment of the present invention, a rain cover 9 is installed on the top of the fixing tube 3 . The diameter of the rain cover 9 is larger than the diameter of the fixing tube 3 , so that the anemometer body 1 can be covered.

[0030] In another embodiment of the present invention, a lifting and maintenance device for an anemometer of a unit is provided, comprising a fixed cylinder 3 and a lifting cylinder 2, wherein one end of the fixed cylinder 3 is arranged outside the engine room 5, and the other end thereof is arranged inside the engine room 5; an anemometer body 1 is installed on the top of the lifting cylinder 2, and the lifting cylinder 2 is arranged in the fixed cylinder 3, and a lifting gear unit 4 is installed at the lower end of the lifting cylinder 2, and the lifting gear unit 4 drives the lifting cylinder 2 and the anemometer body 1 to move downward into the engine room 5; Specifically, by installing the anemometer body 1 on the top of the lift cylinder 2 that can be raised and lowered, and using the fixed cylinder 3 to connect the outside and the inside of the cabin 5, the lift cylinder 2 can move up and down along the fixed cylinder 3 under the drive of the lift gear unit 4. When the lift cylinder 2 is completely retracted into the cabin 5, the maintenance personnel can inspect the anemometer body 1 in the cabin 5, which is safer. After the inspection is completed, the anemometer body 1 can be lifted up again to expose it outside the cabin 5, which is more efficient.

[0031] like Figure 2 As shown, the lifting gear assembly unit 4 in this embodiment includes a linear rack 41 and a driving gear 42. The linear rack 41 is installed on the outer surface of the lifting cylinder 2, and the linear rack 41 is arranged along the length direction of the lifting cylinder 2; a notch 31 is provided at the lower end of the fixed cylinder 3, and the driving gear 42 passes through the notch 31 and is meshed with the linear rack 41; specifically, the driving gear 42 is driven by a motor or manpower, and while the driving gear 42 rotates, the lifting cylinder 2 can be moved up and down, and the notch 31 at the lower end facilitates the meshing of the driving gear 42 and the linear gear. The notch 31 is relatively large, which is convenient for maintenance personnel to pass through the notch 31 to contact the anemometer body 1 for maintenance.

[0032] like Figure 3 As shown, in order to prevent the lifting cylinder 2 from rotating and moving downward smoothly, a positioning guide groove 32 is provided on the inner wall of the fixed cylinder 3, and positioning protrusions 22 for snapping into the positioning guide groove 32 are provided on both sides of the lifting cylinder 2, and the positioning protrusions 22 are slidably connected to the positioning guide groove 32; the end of the positioning protrusion 22 away from the lifting cylinder 2 is an arc surface, and the connection between the positioning protrusion 22 and the positioning guide groove 32 greatly reduces the friction resistance.

[0033] In order to set up two working stations, positioning holes 21 are provided at the upper and lower parts of the lifting cylinder 2, and an elastic locking pin 6 is installed on the outer surface of the fixing cylinder 3. When the lifting cylinder 2 moves axially, the elastic locking pin 6 is inserted into the positioning hole 21 and locked; specifically, when the anemometer body 1 needs to restore the working position, the lifting cylinder 2 moves up, and when the positioning hole 21 moves to the elastic locking pin 6, the elastic locking pin 6 will be stuck in the positioning hole 21, playing a certain supporting role; when maintenance is required, the elastic locking pin 6 is pulled out of the positioning hole 21, and the lifting cylinder 2 moves down, so that the positioning hole 21 located above is connected with the elastic locking pin 6, which is convenient for maintenance personnel to operate.

[0034] Reference Figure 1 As shown, a support plate 7 is provided below the driving gear 42, the support plate 7 is provided at the lower end of the fixed cylinder 3, and the driving gear 42 is rotatably connected to the support plate 7, and a handle 8 is installed at one end of the driving gear 42. The maintenance personnel can manually rotate the handle 8 to drive the lifting cylinder 2 to rise and move downward.

[0035] In order to prevent rainwater from flowing into the cabin 5 through the gap between the fixed cylinder 3 and the lifting cylinder 2, a rain cover 9 is connected to the top of the fixed cylinder 3. The rain cover 9 blocks the top of the anemometer body 1 and also prevents the anemometer body 1 from contacting with rainwater, resulting in inaccurate wind speed monitoring.

[0036] In order to prevent rain from obliquely flowing into the gap between the lifting cylinder 2 and the fixed cylinder 3 , the diameter of the rain cover 9 is designed to be larger than the diameter of the fixed cylinder 3 .

[0037] The present invention also provides a working method of a lifting and repairing device for an anemometer of a unit, comprising the following steps: The lifting gear unit 4 at the notch 31 at the lower part of the side wall of the fixed cylinder 3 drives the lifting cylinder 2 to descend, so that the lifting cylinder 2 is completely in the cabin 5; The maintenance personnel inspect the anemometer body 1 at the top of the lifting cylinder 2 through the notch 31 at the lower part of the side wall of the fixing cylinder 3 .

[0038] The detailed steps are as follows: Figure 1 As shown, at this time, the anemometer body 1 is located outside the nacelle 5, that is, in an extended state, and the elastic locking pins 6 installed on the upper and lower parts of the outer wall of the fixing cylinder 3 are respectively inserted into the corresponding positioning holes 21 of the lifting cylinder 2; like Figure 2 As shown, the elastic locking pin 6 is pulled out, and the lifting gear unit 4 drives the lifting cylinder 2 to move downward. At this time, the elastic locking pin 6 on the upper part of the outer wall of the fixed cylinder 3 is inserted into the positioning hole 21 on the upper part of the lifting cylinder 2, and the lifting cylinder 2 completely enters the cabin 5. The maintenance personnel pass through the notch 31 on the lower part of the side wall of the fixed cylinder 3 to inspect the anemometer body 1 at the top of the lifting cylinder 2.

[0039] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited thereto. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, including the combination of various technical features in any other suitable manner, and these simple modifications and combinations should also be regarded as the contents disclosed by the present invention and belong to the protection scope of the present invention.

Claims

1. A lifting and maintenance device for anemometer of a unit, characterized in that: It comprises a fixed cylinder (3) and a lifting cylinder (2), wherein one end of the fixed cylinder (3) is arranged outside the cabin (5), and the other end is arranged inside the cabin (5); The anemometer body (1) is mounted on the top of the lifting cylinder (2); the lifting cylinder (2) is arranged in the fixed cylinder (3); a notch (31) is formed at the lower part of the side wall of the fixed cylinder (3); a lifting gear unit (4) is mounted at the notch (31); and the lifting gear unit (4) drives the lifting cylinder (2) to move up and down.

2. The device for lifting and repairing anemometer of a unit according to claim 1, characterized in that: The lifting gear unit (4) comprises a linear rack (41) and a driving gear (42); the linear rack (41) is mounted on the outer surface of the lifting cylinder (2); and the driving gear (42) and the linear rack (41) are meshed with each other.

3. The device for lifting and repairing anemometer of a unit according to claim 2, characterized in that: The linear rack rail (41) is arranged along the length direction of the lifting cylinder (2).

4. The device for lifting and repairing anemometer of a unit according to claim 2, characterized in that: A support plate (7) is provided below the driving gear (42), the driving gear (42) is rotatably connected to the support plate (7), and a handle (8) is mounted on one end of the driving gear (42).

5. The device for lifting and repairing anemometer of a unit according to claim 1, characterized in that: The inner side wall of the fixed cylinder (3) is provided with a positioning guide groove (32), and both side walls of the lifting cylinder (2) are provided with (22) for snapping into the positioning guide groove (32), and the positioning protrusion (22) is slidably connected to the positioning guide groove (32).

6. The device for lifting and repairing anemometer of a unit according to claim 5, characterized in that: The end of the positioning protrusion (22) away from the lifting cylinder (2) is an arc surface.

7. A unit anemometer lifting and maintenance device and working method according to claim 1, characterized in that: The upper and lower ends of the lifting cylinder (2) are both provided with positioning holes (21), and the outer surface of the fixing cylinder (3) is provided with an elastic locking pin (6) for inserting into the positioning hole (21).

8. The device for lifting and repairing anemometer of a unit according to claim 1, characterized in that: A rain cover (9) is installed on the top of the fixing tube (3), and the rain cover (9) blocks the upper part of the anemometer body (1).

9. The unit anemometer lifting and maintenance device according to claim 8, characterized in that: The diameter of the rain cover (9) is greater than the diameter of the fixing tube (3).

10. A working method of the unit anemometer lifting and maintenance device according to claim 1, characterized in that: The following steps are involved: The lifting gear unit (4) at the notch (31) at the lower part of the side wall of the fixed cylinder (3) drives the lifting cylinder (2) to descend, so that the lifting cylinder (2) is completely located in the cabin (5); The maintenance personnel inspect the anemometer body (1) at the top of the lifting cylinder (2) through the notch (31) at the lower part of the side wall of the fixed cylinder (3).

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