CN116216598A

CN116216598A - Maintenance platform

Info

Publication number: CN116216598A
Application number: CN202211105069.1A
Authority: CN
Inventors: 张庆伟; 姚志鹏; 王金超; 郭志杰; 苏辉
Original assignee: Ficont Industry Tianjin Co ltd
Current assignee: Ficont Industry Tianjin Co ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2023-06-06
Also published as: WO2024051007A1

Abstract

The invention relates to the technical field of high-altitude construction, and provides an overhaul platform, which comprises a mounting frame, a telescopic arm assembly, a driving assembly and a platform assembly, wherein the telescopic arm assembly comprises a plurality of extension pieces which are sequentially sleeved, any two adjacent extension pieces are connected in a sliding manner, and one end of one extension piece is connected with the mounting frame; the driving assembly comprises a driving piece and a driving rope, the driving piece is arranged at one end of the extending piece far away from the mounting frame, one end of the driving rope is connected with the output end of the driving piece, and the other end of the driving rope is sequentially wound on the extending pieces, so that the driving piece pulls the driving rope to drive the extending pieces to slide relatively; the platform assembly is disposed on the outer extension. According to the invention, the telescopic arm assembly is driven by the driving assembly to extend and retract, so that the platform assembly extends to the tip end position of the blade, and the blade is convenient to overhaul.

Description

Maintenance platform

Technical Field

The invention relates to the technical field of high-altitude construction, in particular to an overhaul platform.

Background

Along with the large-scale research and development installation of the high-power and ultra-low wind speed wind turbine, the height and the diameter of the wind turbine tower are continuously increased, the tower form of the wind turbine is gradually diversified, and the field operation and maintenance workload of the wind turbine is obviously increased. The tower frame of the high-power megawatt wind turbine is high, and the blades are longer, so that the tips of the blades are far away from the tower barrel, and the maintenance work of the blades is inconvenient.

Disclosure of Invention

The invention provides an overhaul platform which is used for solving the defect that overhaul of a blade tip is inconvenient in the prior art and realizing that a driving assembly drives a telescopic arm assembly to stretch so as to extend the platform assembly to the position of the blade tip, so that overhaul of the blade is convenient.

The invention provides an overhaul platform, comprising:

a mounting frame;

the telescopic arm assembly comprises a plurality of extension pieces which are sleeved in sequence, any two adjacent extension pieces are connected in a sliding mode, and one end of one extension piece is connected with the mounting frame;

the driving assembly comprises a driving piece and a driving rope, the driving piece is arranged at one end, far away from the mounting frame, of the extending piece, one end of the driving rope is connected with the output end of the driving piece, and the other end of the driving rope is sequentially wound on the extending pieces, so that the driving piece pulls the driving rope to drive the extending pieces to slide relatively;

the platform assembly is arranged on the extension piece at the outside.

According to the invention, each extension piece is provided with a proximal end adjacent to the mounting frame and a distal end far away from the mounting frame, the driving rope is sequentially connected with the proximal end of one extension piece and the distal end of the other extension piece in two adjacent extension pieces, and the driving rope is pulled by the driving piece to drive one extension piece to slide relative to the other extension piece so as to enable the proximal end of one extension piece and the distal end of the other extension piece to be close.

According to the maintenance platform provided by the invention, each extension piece is provided with the limit switch, and the limit switch is arranged at the proximal end and/or the distal end of the extension piece.

According to the maintenance platform provided by the invention, the driving assembly further comprises a winding drum, the winding drum is arranged at the output end of the driving piece, and the driving rope is wound on the winding drum.

According to the overhaul platform provided by the invention, the telescopic arm assembly further comprises a plurality of reinforcing rods, and the reinforcing rods are arranged on each extension piece at intervals.

According to the overhaul platform provided by the invention, the overhaul platform further comprises an inclination sensor, and the inclination sensor is arranged on the platform assembly.

According to the invention, the mounting frame comprises:

the frame body is connected with the extension piece;

the installation block is arranged on one side of the frame body, which is opposite to the extension piece, and is used for being connected with external equipment.

According to the overhaul platform provided by the invention, the mounting frame further comprises rollers, and the rollers are arranged on one side of the frame body, which is opposite to the extension piece, and are arranged at intervals with the mounting blocks.

According to the overhaul platform provided by the invention, the overhaul platform further comprises a plurality of lifting mechanisms, and the lifting mechanisms are arranged on the platform assembly and the mounting frame at intervals.

According to the invention, an overhaul platform is provided, wherein the platform assembly comprises:

a first sliding platform slidably disposed on the outer extension;

the second sliding platform is slidably arranged on the external extension piece, and the sliding direction of the second sliding platform is parallel to the sliding direction of the first sliding platform;

the connecting platform is fixedly arranged outside the extending piece, and two ends of the connecting platform are respectively connected with the first sliding platform and the second sliding platform in a sliding manner.

The maintenance platform provided by the invention is arranged on the tower barrel of the wind driven generator through the mounting frame so as to lift, thereby being convenient for lifting the platform assembly to the required maintenance height. The telescopic boom assembly is arranged on the mounting frame and comprises a plurality of extension pieces which are sleeved in sequence, and two adjacent extension pieces are connected in a sliding mode, so that the extension pieces can slide relatively, and the telescopic boom assembly can stretch integrally. The platform assembly is arranged on the extending piece at the outermost part, and when the telescopic arm assembly is integrally extended, the platform assembly can move to the tip of the blade, so that maintenance personnel can conveniently stand on the platform assembly to overhaul the blade. The plurality of extending pieces are sequentially spirally wound through the driving rope, and when the driving rope is pulled by the driving piece, the driving rope is spirally contracted so that the plurality of extending pieces relatively slide, and therefore the whole extension of the telescopic arm assembly is achieved. Thus, the platform assembly is ensured to be movable to the blade tip, and the blade tip is convenient to overhaul.

Drawings

In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the structure of an inspection platform provided by the invention;

FIG. 2 is a schematic view of an inspection platform according to another view angle;

fig. 3 is a schematic structural view of two adjacent extension members in the service platform provided by the invention.

Reference numerals:

100. a maintenance platform; 1. a mounting frame; 11. a frame body; 12. a mounting block; 13. a roller; 2. a telescoping arm assembly; 21. an extension member; 211. a first extension; 2111. a proximal end of the first extension; 2112. a distal end of the first extension; 212. a second extension; 2121. a distal end of the second extension; 22. a reinforcing rod; 23. a drive rope guide; 3. a drive assembly; 31. a driving member; 32. a reel; 33. a drive rope; 4. a platform assembly; 41. a first sliding platform; 42. a second sliding platform; 43. a connecting platform; 5. a lifting mechanism.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In describing embodiments of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present invention will be understood in detail by those of ordinary skill in the art.

In embodiments of the invention, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Referring to fig. 1 to 3 in combination, the invention provides an inspection platform 100, which comprises a mounting frame 1, a telescopic arm assembly 2, a driving assembly 3 and a platform assembly 4, wherein the telescopic arm assembly 2 comprises a plurality of extension pieces 21 which are sleeved in sequence, any two adjacent extension pieces 21 are connected in a sliding manner, and one end of one extension piece 21 is connected with the mounting frame 1; the driving assembly 3 comprises a driving piece 31 and a driving rope 33, the driving piece 31 is arranged at one end of the extending piece 21 far away from the mounting frame 1, one end of the driving rope 33 is connected with the output end of the driving piece 31, and the other end of the driving rope 33 is sequentially wound on the extending pieces 21, so that the driving piece 31 pulls the driving rope 33 to drive the extending pieces 21 to slide relatively; the platform assembly 4 is provided on an external extension 21.

In this embodiment, the mounting bracket 1 can be fixed on the tower of the wind driven generator through clamping, and the connection mode of the mounting bracket 1 and the tower can be threaded connection, buckle connection or magnetic connection, etc., so that the mounting bracket is convenient to assemble and disassemble. So, can fixed mounting bracket 1 in a tower section of thick bamboo after lifting mounting bracket 1 to required height, can dismantle mounting bracket 1 after the maintenance work is accomplished. It will be appreciated that the plurality of extension members 21 are sequentially sleeved, one end of the innermost extension member 21 is connected with the mounting frame 1, and then the platform assembly 4 is mounted on the outermost extension member 21, and when the plurality of extension members 21 slide relatively, the outermost extension member 21 is gradually far away from the innermost extension member 21, so as to move the platform assembly 4 to the blade tip. Alternatively, the adjacent two extending members 21 may slide relatively by rollers, balls, or sliding blocks, etc., which are not limited herein.

For example, the driving member 31 may be disposed on the outermost extending member 21 and disposed at an end of the extending member 21 away from the mounting frame 1, one end of the driving rope 33 is connected to the output end of the driving member 31, and the other end of the driving rope 33 is sequentially wound around the plurality of extending members 21. It will be appreciated that the drive cord 33 is connected in sequence from the outermost extension 21 to the innermost extension 21, and that as the drive cord 33 is pulled by the drive member 31, the drive cord 33 is wound up such that the outermost extension 21 slides away from the innermost extension 21. The driving member 31 may be a mechanism for winding up the driving rope 33, such as a motor or a rotary cylinder, and is not limited thereto.

The maintenance platform 100 provided by the invention is arranged on the tower of the wind driven generator through the mounting frame 1 so as to lift, thereby being convenient for lifting the platform assembly 4 to the required maintenance height. The telescopic arm assembly 2 is arranged on the mounting frame 1, the telescopic arm assembly 2 comprises a plurality of extension pieces 21 which are sleeved in sequence, and the two adjacent extension pieces 21 are connected in a sliding mode, so that the extension pieces 21 slide relatively, and the telescopic arm assembly 2 stretches integrally. The platform assembly 4 is arranged on the outermost extension piece 21, and when the telescopic arm assembly 2 is integrally extended, the platform assembly 4 can move to the tip of the blade, so that maintenance personnel can conveniently stand on the platform assembly 4 to overhaul the blade. By sequentially spirally winding the plurality of extension pieces 21 with the driving rope 33, when the driving rope 33 is pulled by the driving piece 31, the driving rope 33 is spirally contracted to relatively slide the plurality of extension pieces 21, thereby realizing the overall extension of the telescopic arm assembly 2. In this way, it is ensured that the platform assembly 4 is movable to the blade tip for facilitating servicing of the blade tip.

According to the present invention there is provided an access platform 100, each extension 21 having a proximal end adjacent the mounting frame 1 and a distal end remote from the mounting frame 1. In the adjacent two extension members 21, the driving cord 33 is connected to the proximal end of one extension member 21 and the distal end of the other extension member 21 in sequence, and the driving member 31 pulls the driving cord 33 to drive the one extension member 21 to slide relative to the other extension member 21 so as to bring the proximal end of the one extension member 21 and the distal end of the other extension member 21 close.

In this embodiment, the extension 21 is elongated to have a length sufficient to extend to the blade tip. It will be appreciated that the end of the extension member 21 adjacent the mounting frame 1 is proximal and the end remote from the mounting frame 1 is distal, the proximal end of each extension member 21 being disposed without actuation of the actuation member 31. As shown in fig. 3, the adjacent two extension members 21 are a first extension member 211 and a second extension member 212, respectively, and the second extension member 212 is located closer to the mounting bracket 1 than the first extension member 211. The proximal end 2111 of the first extension member 211 and the distal end 2121 of the second extension member 212 are connected by the drive cord 33, and when the drive cord 33 is pulled to wind up, the first extension member 211 slides in a direction away from the mounting frame 1, the proximal end 2111 of the first extension member 211 gradually approaches the distal end 2121 of the second extension member 212, that is, the distal end 2112 of the first extension member 211 gradually moves away from the distal end 2121 of the second extension member 212, so that the overall extension of the telescopic arm assembly 2 is achieved.

In one embodiment, drive rope guide 23 may be provided at the proximal and distal ends of each extension 21, with drive rope 33 wrapped around drive rope guide 23. As shown in fig. 3, a drive rope guide 23 may be provided at the proximal end 2111 of the first extension 211 and a drive rope guide 23 may be provided at the distal end 2121 of the second extension 212, with the drive rope 33 wrapped around the two drive rope guides 23, thereby connecting the proximal end 2111 of the first extension 211 and the distal end 2121 of the second extension 212. In this way, when the driving rope 33 is wound up or unwound, the sliding friction between the driving rope 33 and the extension piece 21 becomes the rolling friction between the wire rope 33 and the driving rope guide wheel 23, thereby reducing the friction force between the driving rope 33 and the extension piece 21 and enabling to reduce the wear of the driving rope 33. The driving rope guide wheel 23 can be further provided with a groove, and the driving rope 33 is arranged in the groove, so that the driving rope 33 can be effectively prevented from being separated from the driving rope guide wheel 23.

Illustratively, lifting ropes are arranged above the mounting frame 1 and the platform assembly 4 and are connected to the tower through the lifting ropes so as to realize integral lifting of the overhaul platform 100. It will be appreciated that when the telescopic arm assembly 2 is extended, the lifting rope connected to the platform assembly 4 is connected to the tower in an inclined manner, that is, the lifting rope connected to the platform assembly 4 encloses with the tower and the telescopic arm assembly 2 to form a right triangle structure. Thus, when the driving member 31 releases the driving rope 33, the telescopic arm assembly 2 is integrally retracted according to the traction of the lifting rope and the gravity effect of the platform assembly 4, namely, the telescopic arm assembly 2 is retracted away from the extension member 21 of the mounting frame 1, so that the telescopic arm assembly 2 is retracted after the maintenance is finished.

According to the maintenance platform 100 provided by the invention, each extension piece 21 is provided with a limit switch, and the limit switch is arranged at the proximal end or the distal end of the extension piece 21, or the limit switches are arranged at the proximal end and the distal end.

In this embodiment, a limit switch is disposed on each extension member 21, and the limit switch may be a stop block, an optocoupler sensor, a trigger switch, or the like. For example, when the proximal end of one extension member 21 is adjacent to the distal end of the other extension member 21, a stop block provided on one extension member 21 stops against the other extension member 21, or one extension member 21 triggers an optocoupler sensor or trigger switch on the other extension member 21 to feed back a signal to the driving member 31 to control the driving member 31 to stop working, thereby avoiding the excessive distance that one extension member 21 moves relative to the other extension member 21. That is, it is ensured that the adjacent two extension pieces 21 have a certain overlapping portion to support the two extension pieces 21 to be connected, thereby improving the connection stability.

As shown in fig. 1, according to the maintenance platform 100 provided by the present invention, the driving assembly 3 further includes a drum 32, the drum 32 is disposed at an output end of the driving member 31, and the driving rope 33 is wound around the drum 32. In this embodiment, the driving member 31 is optionally a motor, and is disposed on an output shaft of the motor through the winding drum 32 so as to wind the driving rope 33 around the winding drum 32, and it can be understood that, as the motor rotates, the driving rope 33 is gradually wound around the winding drum 32, so that the telescopic arm assembly 2 stretches. When the motor is released, the telescopic arm assembly 2 automatically withdraws according to the gravity of the telescopic arm assembly and the action of the lifting rope above, and then the driving rope 33 is driven to be released from the winding drum 32.

Optionally, the drive line 33 is a wire rope to ensure sufficient strength to pull the telescopic arm assembly 2.

As shown in fig. 2, according to the maintenance platform 100 provided by the present invention, the telescopic arm assembly 2 further includes a plurality of reinforcing rods 22, and the plurality of reinforcing rods 22 are disposed at intervals on each extension member 21.

In this embodiment, the extending member 21 is in a strip shape, and has a hollow structure in the middle, so as to reduce weight. In order to ensure the supporting strength of the extending members 21 supporting the platform assembly 4, a plurality of reinforcing rods 22 are disposed on each extending member 21, and the reinforcing rods 22 are disposed in the hollow structure, it can be understood that the plurality of reinforcing rods 22 are disposed in a staggered or crossed manner so as to enhance the overall strength of the extending members 21 and improve the safety.

According to the maintenance platform 100 provided by the invention, the installation frame 1 comprises a frame body 11 and an installation block 12, and the frame body 11 is connected with the extension piece 21; the mounting block 12 is provided on a side of the frame 11 facing away from the extension 21, and the mounting block 12 is used for connection with external equipment.

In this embodiment, the frame 11 is used for supporting the telescopic arm assembly 2, and the mounting block 12 is disposed on a side of the frame 11 facing away from the extension member 21, so as to be connected with the tower. Alternatively, the attachment manner of the mounting block 12 and the frame 11 may be an adhesive, a welding, a screw connection, or the like, which is not limited herein. The installation block 12 is an electromagnet, when the frame 11 is lifted to a required maintenance height, the installation block 12 is electrified, so that the installation block 12 is fixed Yu Datong in a magnetic attraction manner, the installation block 12 can be powered off after maintenance is completed, the installation block 12 and the tower barrel are separated, and the installation and the disassembly are convenient in a manner of the electromagnet. Of course, the mounting block 12 may be connected to the tower by a snap fit or a screw connection, and the like, and is not limited thereto. Optionally, the number of mounting blocks 12 is plural to improve the stability of the connection with the tower.

Optionally, the frame 11 includes supporting part and locates two connecting portions at supporting part both ends, and the supporting part is used for being connected with flexible arm assembly 2, and two connecting portions all articulate with the supporting part, so, fix in the tower section of thick bamboo through two connecting portion centre gripping, and the connecting portion all articulates in order to adjust the outer wall looks adaptation of clamping angle and tower section of thick bamboo with the supporting part, improves installation stability.

According to the maintenance platform 100 provided by the invention, the mounting frame 1 further comprises the roller 13, and the roller 13 is arranged on one side of the frame body 11, which is opposite to the extension piece 21, and is spaced from the mounting block 12.

In this embodiment, the roller 13 is disposed on the frame 11, and when the mounting frame 1 is hung on the outer wall of the tower, the roller 13 can be in rolling contact with the outer wall of the tower, so as to lift the frame 11 to a required maintenance height. It can be appreciated that when lifting the mounting frame 1, the rollers 13 can roll along the outer wall of the tower, so that the mounting frame 1 is lifted in contact with the tower, shake of the mounting frame 1 is reduced, and abrasion caused by overlarge friction between the mounting frame 1 and the tower is avoided.

As shown in fig. 1, according to the maintenance platform 100 provided by the invention, the maintenance platform 100 further comprises a plurality of lifting mechanisms 5, and the plurality of lifting mechanisms 5 are arranged on the platform assembly 4 and the mounting frame 1 at intervals.

In this embodiment, the maintenance platform 100 is lifted by hanging a steel wire rope on a tower, specifically, the steel wire rope is connected to the lifting mechanism 5 to be fixed, so as to gradually lift on the tower. Optionally, the number of the lifting mechanisms 5 is three, wherein two lifting mechanisms 5 are arranged on the platform assembly 4, and the other lifting mechanism 5 is arranged on the mounting frame 1, so that the overhaul platform 100 is lifted through three lifting points, so that the whole overhaul platform 100 is stressed and balanced and cannot be turned over.

According to the maintenance platform 100 provided by the invention, the maintenance platform 100 further comprises an inclination sensor, and the inclination sensor is arranged on the platform assembly 4. In this embodiment, the inclination angle of the platform assembly 4 is monitored by the inclination sensor, so that the overall inclination angle of the overhaul platform 100 is monitored, the platform assembly 4 is adjusted to be in a horizontal state in time, and the rollover risk is reduced. It will be appreciated that leveling may be performed at a single point manually by controlling the start and stop of each lifting mechanism 5 individually. Optionally, an electric cabinet is further disposed on the platform assembly 4 to control the operation of the maintenance platform 100, and optionally, an inclination sensor is disposed in the electric cabinet so as to be fed back to the electric cabinet in time, and the platform assembly 4 can be adjusted to a horizontal state in time by controlling the electric cabinet.

According to the service platform 100 provided by the invention, the platform assembly 4 comprises a first sliding platform 41 and a second sliding platform 42, wherein the first sliding platform 41 is slidably arranged on the external extension piece 21; the second sliding platform 42 is slidably disposed on the external extension member 21, and the sliding direction of the second sliding platform 42 is parallel to the sliding direction of the first sliding platform 41.

In order to facilitate maintenance personnel to have more construction positions to select to construct on the platform assembly 4, reduce the construction degree of difficulty, the platform assembly 4 includes first slide platform 41 and second slide platform 42, and maintenance personnel can select to stand on first slide platform 41 or second slide platform 42 to overhaul to the different positions on the blade, reduce the construction degree of difficulty. It will be appreciated that when the telescopic arm assembly 2 is extended to the blade tip, there may be an error, which may cause the platform assembly 4 to move to the blade tip position without corresponding to the service position, for which reason the first sliding platform 41 and the second sliding platform 42 are provided to be slidable on the extension member 21 so as to slide to the position to be serviced, which is convenient for the service personnel to service. Illustratively, pulleys are provided at bottoms of the first sliding platform 41 and the second sliding platform 42, and sliding rails are provided at outer walls of the outermost extension members 21, and sliding of the first sliding platform 41 and the second sliding platform 42 is achieved by sliding the pulleys on the sliding rails. It will be appreciated that the sliding direction of the first sliding platform 41 is parallel to the sliding direction of the second sliding platform 42, so as to avoid interference, and the sliding direction of the first sliding platform 41 and the sliding direction of the second sliding platform 42 are perpendicular to the telescopic direction of the telescopic arm assembly 2, so as to provide a degree of freedom adjustment in the second direction, so that an maintainer can correspondingly stand at the maintenance position for maintenance.

According to the maintenance platform 100 provided by the invention, the platform assembly 4 further comprises a connecting platform 43, the connecting platform 43 is fixedly arranged on the external extension piece 21, and two ends of the connecting platform 43 are respectively connected with the first sliding platform 41 and the second sliding platform 42 in a sliding manner.

In this embodiment, the connection platform 43 can be used to install the lifting mechanism 5, the electric cabinet, etc. to prevent the structures from being installed on the first sliding platform 41 and the second sliding platform 42 to obstruct the maintenance personnel, so as to save space for the first sliding platform 41 and the second sliding platform 42, and facilitate maintenance of the maintenance personnel. The connection platform 43 is fixedly disposed on the outer wall of the outermost extension member 21, and both ends of the connection platform 43 are slidably connected to the first sliding platform 41 and the second sliding platform 42, respectively. Limiting pins (for example, ball pins) can be arranged on the connecting platform 43, a plurality of limiting holes are formed in the basketball frame which is slidably connected with the connecting platform 43 and the first sliding platform 41 and the second sliding platform 42, and the limiting pins can be inserted into the limiting holes after the first sliding platform 41 and the second sliding platform 42 slide to the maintenance position, so that the first sliding platform 41 and the second sliding platform 42 are prevented from moving. It will be appreciated that service personnel may also walk back and forth between the first 41 and second 42 sliding platforms via the connection platform 43, providing the service personnel with the option to perform service work on different positions of the blade.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An inspection platform, characterized in that the inspection platform comprises:

a mounting frame;

the platform assembly is arranged on the extension piece at the outside.

2. The service platform of claim 1, wherein each of said extension members has a proximal end adjacent said mounting frame and a distal end remote from said mounting frame, said drive string connecting in turn the proximal end of one of said extension members and the distal end of the other of said extension members in adjacent two of said extension members, said drive string pulling said drive string to drive one of said extension members to slide relative to the other of said extension members to bring the proximal end of one of said extension members and the distal end of the other of said extension members closer together.

3. An inspection platform according to claim 2 wherein each of the extension members is provided with a limit switch, the limit switch being provided at the proximal end and/or the distal end of the extension member.

4. The service platform of claim 1, wherein the drive assembly further comprises a spool disposed at an output end of the drive member, the drive line being wound around the spool.

5. The service platform of claim 1, wherein the telescoping arm assembly further comprises a plurality of stiffening rods spaced apart from each of the extensions.

6. The service platform of any one of claims 1 to 5, further comprising an inclination sensor provided to the platform assembly.

7. The service platform of any one of claims 1 to 5, wherein the mounting frame comprises:

the frame body is connected with the extension piece;

8. The service platform of claim 7, wherein the mounting bracket further comprises rollers disposed on a side of the frame body facing away from the extension member and spaced apart from the mounting block.

9. The service platform of any one of claims 1 to 5, further comprising a plurality of lifting mechanisms, a plurality of the lifting mechanisms being spaced apart from the platform assembly and the mounting frame.

10. The service platform of any one of claims 1 to 5, wherein the platform assembly comprises:

a first sliding platform slidably disposed on the outer extension;