Variable-pitch motor replacement tool for wind generating set

Abstract

The utility model discloses a wind generating set variable pitch motor replacing tool in the technical field of wind power generation, which comprises a mounting plate, a moving part and a rotating part, the mounting plate comprises a plate body, the surface of the plate body is provided with a mounting hole, the positions of the plate body close to two ends are provided with a mounting seat and a hollow limiting part, the moving part comprises a column body, and the rotating part comprises a rotating shaft. The column body is horizontally inserted into the hollow limiting part, the end, away from the mounting base, of the column body is connected with an end, the end of the end is provided with a rubber pad, the rotating part comprises a bent part, the lower end of the bent part is rotationally connected with the mounting base, and the lower portion of the bent part is in transmission connection with the end, close to the mounting base, of the column body through a connecting piece; and a handle is mounted at the upper end of the bent part. The tool for replacing the variable-pitch motor of the wind generating set is not restricted by environmental factors such as narrow space of a hub, reliable bearing is ensured by high-strength materials, the difficulty in replacing the variable-pitch motor is reduced, and the labor cost and the time cost are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a wind generating set variable pitch motor replacement frock belongs to wind power generation technical field. BACKGROUND

[0002] At present, the number of wind farms in Chongqing area is increasing, and the model of wind turbine is gradually developing to large scale. The problem that follows is that the size of variable pitch motor is also increasing. The service life of variable pitch motor is about 5 to 6 years, and the variable pitch motor of the first batch of wind turbines has gradually appeared winding and bearing problems, resulting in wind turbine failure. This not only may cause failure of blade folding, but also may cause serious consequences such as runaway and tower collapse if the variable pitch motor is not replaced in time.

[0003] In the prior art, the variable pitch motor of large unit, such as the variable pitch motor of Haizhuang 3.0MW unit, weighs up to 100kg, and the space in the hub is small and lacks lifting points, which greatly increases the difficulty of replacing the variable pitch motor, resulting in significant increase of labor cost and time cost. SUMMARY

[0004] The utility model aims at overcoming the shortage in the prior art, providing a wind generating set variable pitch motor replacement frock, which is not restricted by the environment factors such as small space in the hub, high-strength material ensures reliable bearing, reduces the difficulty of replacing the variable pitch motor, and reduces labor cost and time cost.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] Firstly, the utility model provides a wind generating set variable pitch motor replacement frock, which comprises a mounting plate, a moving part and a rotating part. The mounting plate comprises a plate body, the plate body surface is provided with a mounting hole, the plate body is provided with a mounting seat and a hollow limiting part near both ends, the moving part comprises a column body, the column body is horizontally inserted into the hollow limiting part, the end of the column body away from the mounting seat is connected with an end head, the end of the end head is provided with a rubber pad, the rotating part comprises a bending part, the lower end of the bending part is rotationally connected with the mounting seat, the lower part of the bending part is transmissionally connected with the end of the column body near the mounting seat through a connecting piece, and the upper end of the bending part is provided with a handle.

[0007] Further, the end of the column body near the end head is provided with a mounting groove, and a circle of rubber layer is padded on the inner wall of the mounting groove. The end head is provided with a mounting column matched with the mounting groove.

[0008] Further, the bending part is a three-section bending structure, comprising a head section, a middle section and a tail section, wherein the length of the head section is shorter than the lengths of the middle section and the tail section, the end of the head section is rotatably connected with the mounting seat through a pin shaft, and the connection between the head section and the middle section is drivingly connected with the end of the column through a connecting piece.

[0009] Further, the rotating part further comprises an additional rod, the additional rod comprises an insertion rod, the upper end of the insertion rod is connected with an additional handle, and the lower part is connected with a limiting block, a plurality of insertion holes are formed in the top end of the handle, and the insertion rod and the insertion holes are matched in size and position.

[0010] Further, the limiting block is a threaded ring, the insertion rod is a threaded rod, and the two are connected through a screw.

[0011] Further, the mounting hole adopts a straight slot structure, the number is four, and the four mounting holes are arranged at the four corners close to the plate body.

[0012] Compared with the prior art, the beneficial effects achieved by the utility model are as follows:

[0013] First, the wind turbine generator unit variable pitch motor replacement tool provided by the scheme is not restricted by the narrow space of the hub and other environmental factors, the high-strength material ensures reliable load bearing, the disassembly work is more labor-saving, the difficulty of variable pitch motor replacement is reduced, and the labor cost and time cost are also reduced; the variable pitch motor is stably connected with the tool through a bolt, the workpiece is effectively prevented from falling off during the work process, and personal injury accidents are avoided; the bottom is provided with a high-elasticity rubber pad, which effectively prevents damage to the lower variable pitch reducer during the work process;

[0014] Second, the end head in the scheme is a replaceable structure, the column is provided with a mounting groove at one end close to the end head, the end head is provided with a mounting column matched with the mounting groove, and the inner wall of the mounting groove is provided with a rubber layer for increasing the friction force of the contact surface; when the length of the end head is relatively short, the original end head is pulled out and replaced with a new end head with a longer length; and when the length of the end head is relatively long, a short end head can be replaced.

[0015] Third, the insertion holes are formed in the top end of the handle and the number is three, which is convenient for inserting the additional rod, when the length of the rotating part is relatively short and is not convenient for operators to operate, or when a larger transmission force is needed, the additional rod is inserted into the insertion hole to further increase the rotating radius of the rotating part, so that a larger transmission force can be applied to the column. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings accompanying the specification of the utility model form a part of the utility model and serve to provide further understanding of the utility model, and the illustrative embodiments of the utility model and the description thereof serve to explain the utility model, and do not constitute an improper limitation on the utility model. In the drawings:

[0017] Figure 1The utility model provides a kind of wind generating set variable pitch motor replacement tool structure schematic view provided for the embodiment of the utility model;

[0018] Figure 2 The utility model provides a kind of wind generating set variable pitch motor replacement tool end section view provided for the embodiment of the utility model;

[0019] In the drawing: 1, mounting plate;101, plate body;102, mounting hole;103, mounting seat;104, hollow limiting portion;2, moving part;201, column body;202, end;203, rubber pad;204, mounting column;3, rotating part;301, bending portion;302, handle;303, jack;304, additional rod;3041, additional handle;3042, plug rod;3043, limiting block;4, connecting piece. DETAILED DESCRIPTION

[0020] The utility model will be described in detail below with reference to the drawings and in combination with embodiments.It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0021] The following detailed description is exemplary description, which aims to provide further detailed description of the utility model. Unless otherwise specified, all technical terms used in the utility model have the same meaning as that generally understood by the general technical personnel in the field to which the utility model belongs. The terms used in the utility model are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the utility model.

[0022] Embodiment:

[0023] Please refer to Figure 1 And Figure 2 The embodiment provides a kind of wind generating set variable pitch motor replacement tool, overall structure is composed of mounting plate 1, moving part 2 and rotating part 3 three parts, wherein the lower end of moving part 2 and mounting plate 1 are connected by pin shaft rotation, the lower part of rotating part 3 and one end of moving part 2 are connected by connecting piece 4 transmission, moving part 2 is horizontally arranged above mounting plate 1 and can be moved left and right with the driving of rotating part 3, the specific structure of three-part structure is:

[0024] Mounting plate 1 is composed of plate body 101, mounting hole 102, mounting seat 103 and hollow limiting portion 104, wherein plate body 101 is rectangular;Mounting hole 102 has four, is respectively arranged at the four corners close to plate body 101, mounting plate 1 is fixedly installed on the side of variable pitch motor at the position of mounting hole 102 by bolt, here mounting hole 102 adopts straight slot structure, it is convenient to adapt the screw hole installation position of different variable pitch motor;Mounting seat 103 and hollow limiting portion 104 are respectively arranged at the position close to both ends of plate body 101.

[0025] The moving part 2 is composed of a column 201, an end 202 and a rubber pad 203, wherein the column 201 is horizontally inserted into the hollow limiting part 104, the end 202 is connected to the end of the column 201 away from the mounting base 103, and the end of the end 202 is provided with the rubber pad 203. In order to avoid the length of the end 202 not being able to adapt to the position of the speed reducer, the end 202 is replaceable in this embodiment, the end close to the end 202 of the column 201 is provided with a mounting groove, the end 202 is provided with a mounting column 204 matched with the mounting groove, and the inner wall of the mounting groove is provided with a rubber layer for increasing the friction of the contact surface. When the length of the end 202 is shorter, the original end is pulled out and replaced with a new end with a longer length. Similarly, when the length of the end 202 is longer, a short end can be replaced.

[0026] The rotating part 3 is composed of a bending part 301, a handle 302 and a plug hole 303, wherein the bending part 301 is a three-section bending structure, including a head section, a middle section and a tail section, wherein the length of the head section is shorter, and the lengths of the middle section and the tail section are longer, the end of the head section is rotatably connected to the mounting base 103 on the mounting plate 1 through a pin shaft, and the connection between the head section and the middle section is drivingly connected to the end of the column 201 through the connecting piece 4. Since the length of the head section is shorter, a force-saving lever is formed at the connecting piece 4 when the bending part 301 rotates, which can exert a larger driving force on the column 201. The handle 302 is installed at the end of the tail section, and the plug hole 303 is opened at the top end of the handle 302 and has three numbers, which is convenient for inserting the added rod 304. When the length of the rotating part 3 is too short to be operated by the operator, or a larger driving force is needed, the added rod 304 is inserted into the plug hole 303 to further increase the rotating radius of the rotating part 3, thereby being able to exert a larger driving force on the column 201. In this embodiment, the added rod 304 is composed of an added handle 3041, an inserted rod 3042 and a limiting block 3043, wherein the inserted rod 3042 is connected to the lower end of the added handle 3041, the size and position of the inserted rod 3042 are matched with the plug hole 303, and the limiting block 3043 is installed on the rod body of the inserted rod 3042 for limiting the inserted length of the inserted rod 3042. Here, the limiting block 3043 can also be a threaded ring, and the inserted rod 3042 can be a threaded rod, which are connected through a screw, thereby being convenient for adjusting the inserted length of the inserted rod 3042.

[0027] The variable pitch motor and the variable pitch reducer of the wind turbine generator are connected through a shaft and a key, and the installation is extremely stable. The main function of the variable pitch motor replacement tool is to dismount the variable pitch motor from the variable pitch reducer. The specific operation steps are as follows: firstly, the tool is installed on the side of the variable pitch motor through bolts and is fixed firmly; secondly, the rubber pad at the lower end of the tool is placed on the upper end of the reducer; then, the handle is pressed downward, so that the tool plays a similar role of a jack and lifts the variable pitch motor. In addition, the handle of the tool can be lengthened to extend the force arm, so that the operation is more convenient. Finally, the variable pitch motor is successfully dismounted from the upper part of the variable pitch reducer. In summary, the variable pitch motor replacement tool of the wind turbine generator provided by the scheme is not restricted by environmental factors such as narrow space of the hub, and the high-strength material ensures reliable load bearing; the variable pitch motor and the tool are stably connected through bolts, which effectively prevents the workpiece from falling off during work and avoids personal injury accidents. The bottom is equipped with a high-elasticity rubber pad, which effectively prevents damage to the lower variable pitch reducer during work.

[0028] From the common technical knowledge, the present application can be realized by other embodiments without departing from the spirit or essential characteristics thereof. Therefore, the above disclosed embodiments are merely illustrative in all aspects, and are not the only ones. All changes within the scope of the present application or within the scope equivalent to the present application are included in the present application.

[0029] Finally, it should be noted that: the above examples are used to illustrate the technical solutions of the present application, but not to limit it. Although the present application has been described in detail with reference to the above examples, those skilled in the art should understand that the specific embodiments of the present application can be modified or replaced, and any modification or equivalent replacement without departing from the spirit and scope of the present application should be covered within the protection scope of the claims of the present application.

Claims

1. A wind turbine generator system variable pitch motor replacement tooling characterized by, Including installation plate (1), mobile part (2) and rotating part (3), the installation plate (1) includes plate body (101), the plate body (101) surface is provided with mounting hole (102), the plate body (101) is installed near the position of both ends mounting seat (103) and hollow limiting part (104), the mobile part (2) includes column body (201), the column body (201) is inserted in hollow limiting part (104), the column body (201) is connected with end head (202) away from mounting seat (103) one end, and the end of end head (202) is provided with rubber pad (203), the rotating part (3) includes bending part (301), the lower end of bending part (301) is rotatably connected with mounting seat (103), the lower part of bending part (301) is rotatably connected with the one end of column body (201) near mounting seat (103) through connecting piece (4), the upper end of bending part (301) is provided with handle (302).

2. The wind turbine generator set variable pitch motor replacement tooling of claim 1, wherein, The one end of the column body (201) near the end head (202) is provided with a mounting groove, and a rubber layer is provided on the inner wall of the mounting groove, and the end head (202) is provided with a mounting column (204) matched with the mounting groove.

3. The wind turbine generator set variable pitch motor replacement tooling of claim 1, wherein, The bending part (301) is a three-section bending structure, including a head section, a middle section and a tail section, wherein the length of the head section is shorter than the lengths of the middle section and the tail section, the end of the head section is rotatably connected with the mounting seat (103) through a pin shaft, and the connection between the head section and the middle section is drivingly connected with the end of the column body (201) through the connecting piece (4).

4. The wind turbine generator set variable pitch motor replacement tooling of claim 1, wherein, The rotating part (3) further includes an additional rod (304), the additional rod (304) includes a plug rod (3042), the upper end of the plug rod (3042) is connected with an additional handle (3041), and the lower part is connected with a limiting block (3043), the top end of the handle (302) is provided with a plurality of insertion holes (303), and the plug rod (3042) and the insertion hole (303) are matched in size and position.

5. The wind turbine generator set variable pitch motor replacement tooling of claim 4, wherein, The limiting block (3043) is a threaded ring, the plug rod (3042) is a threaded rod, and the two are connected by screwing.

6. The wind turbine generator set variable pitch motor replacement tooling of claim 1, wherein, The mounting hole (102) adopts a straight slot structure, and there are four of them, which are respectively arranged at the four corners near the plate body (101).

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