Coupling for wind driven generator

Abstract

The utility model discloses a coupling for a wind driven generator, which comprises a main connecting shaft component, two ends of the main connecting shaft component are respectively connected with a first steering joint and a second steering joint, the two steering joints establish connection between a fan driving shaft and a rotating shaft of a generator set, the fan driving shaft is connected with one steering joint, and the other steering joint is connected with the other steering joint. A rotating shaft of the generator set is connected with the other steering connector, the first steering connector comprises a first connecting frame, the inner side of the first connecting frame is rotationally connected with a rotating block, the rotating block is rotationally connected with a second connecting frame, a shaft connecting sleeve is integrally formed at the end of the second connecting frame, and the shaft connecting sleeve is fixedly connected with a shaft needing to be connected. The rotating block and the second connecting frame can rotate around the shaft under the action of external force, so that the steering connector can rotate according to needs, the steering connector serving as the connecting end of the coupler can face different directions and connect a fan driving shaft and a generator set which are not coaxial, and the steering connector is more suitable for being used by a fan generator.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbine couplings, and specifically relates to a coupling for a wind turbine. Background Art

[0002] A wind turbine is an electric device that converts wind energy into mechanical work, which drives the rotor to rotate and finally outputs alternating current. A wind turbine generally consists of components such as a wind rotor, a generator, a rectifier, a tower, a speed limit safety mechanism, and an energy storage device. The working principle of a wind turbine is relatively simple. The wind rotor rotates under the action of wind force, and it converts the kinetic energy of the wind into the mechanical energy of the wind rotor shaft. The generator rotates and generates electricity under the drive of the wind rotor shaft. A coupling is generally used in a wind turbine to connect the fan drive shaft with the rotating shaft of the generator set. The installation positions of the fan drive shafts of different models of wind turbines are different, and there is a different axis with the generator set. During installation, traditional couplings are mostly non-reversible, and it is difficult to connect the fan drive shaft with different axes to the generator set. For this reason, a reversible coupling for a wind turbine is proposed. Utility Model Content

[0003] The purpose of the utility model is to provide a coupling for a wind turbine generator to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a coupling for a wind turbine generator, comprising a main connecting shaft assembly, wherein two ends of the main connecting shaft assembly are respectively connected with a first steering joint and a second steering joint, wherein the first steering joint and the second steering joint have the same structure, and the two steering joints establish a connection between a fan drive shaft and a rotating shaft of a generator set, wherein the fan drive shaft is connected to one of the steering joints, and the rotating shaft of the generator set is connected to the other steering joint, wherein the first steering joint comprises a first connecting frame, wherein a rotating block is rotatably connected to the inner side of the first connecting frame, wherein a second connecting frame is rotatably connected to the rotating block, wherein an end of the second connecting frame is integrally formed with a shaft connecting sleeve, wherein the shaft connecting sleeve is fixedly connected to a shaft to be connected, wherein the rotating block and the second connecting frame can both rotate around the shaft under the action of an external force, so that the steering joint can rotate as required, wherein the steering joint as the connecting end of the coupling can face different directions, connect the fan drive shaft and the generator set of different shafts, and is more suitable for use with a fan generator, wherein the fan drive shaft works to drive the second connecting frame to rotate, wherein the rotating block rotates accordingly, wherein the rotation of the second connecting frame drives the main connecting shaft assembly to rotate, and finally the generator set is driven to work through the second steering joint 3.

[0005] Preferably, the main connecting shaft assembly includes an external connecting sleeve and an internal connecting rod, the internal connecting rod is slidably connected in the external connecting sleeve, and a locking pin assembly passes through both the external connecting sleeve and the internal connecting rod. The locking pin assembly is used to fix the relative position of the external connecting sleeve and the internal connecting rod, thereby fixing the length of the main connecting shaft assembly. The total length of the main connecting shaft assembly can be adjusted by adjusting the extension amount of the internal connecting rod.

[0006] Preferably, the locking pin assembly includes a pin, which passes through the external connecting sleeve and the internal connecting rod, the upper end of the pin is fixedly connected to a connecting handle, the lower end outer wall of the pin is provided with a thread, and the lower end outer wall of the pin is threadedly connected to a locking nut, the external connecting sleeve is provided with a first socket for inserting the pin, and the internal connecting rod is evenly provided with second sockets used in conjunction with the first socket, and the pin is fixed by tightening the locking nut, thereby fixing the relative positions of the external connecting sleeve and the internal connecting rod, and fixing the length of the main connecting shaft assembly.

[0007] Preferably, the first steering joint is fixedly connected to the end of the internal connecting rod, and the second steering joint is fixedly connected to the end of the external connecting sleeve.

[0008] Preferably, connecting shafts are provided on the inner sides of the first connecting frame and the second connecting frame, and the rotating block is rotatably connected to the two connecting shafts. The fan drive shaft works to drive the second connecting frame to rotate, and the rotating block rotates accordingly. The rotation of the second connecting frame drives the main connecting shaft assembly to rotate, and finally the generator set is driven to work through the second steering joint, and the coupling rotates flexibly as a whole.

[0009] Preferably, the internal connecting rod is a polygonal rod, the sliding cavity of the external connecting sleeve matches the shape of the internal connecting rod, and the polygonal rod cooperates with the external connecting sleeve to make the radially driven rotation more stable.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] A first steering joint and a second steering joint are respectively connected to both ends of the main connecting shaft assembly, and the two steering joints establish a connection between the fan drive shaft and the rotating shaft of the generator set. The fan drive shaft is connected to one of the steering joints, and the rotating shaft of the generator set is connected to the other steering joint. The first steering joint includes a first connecting frame, and a rotating block is rotatably connected to the inner side of the first connecting frame, and the second connecting frame is rotatably connected to the rotating block. The end of the second connecting frame is integrally formed with a shaft connecting sleeve, and the shaft connecting sleeve is fixedly connected to the shaft to be connected. The rotating block and the second connecting frame can rotate around the axis under the action of external force, so that the steering joint can be rotated as needed. The steering joint, as the connecting end of the coupling, can face different directions to connect the fan drive shaft and the generator set of different axes, which is more suitable for use in wind turbine generators. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0013] Figure 2 This is a cross-sectional view of the lock pin assembly of the utility model;

[0014] Figure 3 This is a top view of the first steering joint of the utility model.

[0015] In the figure: 1-main connecting shaft assembly, 101-external connecting sleeve, 102-internal connecting rod, 2-first steering joint, 201-first connecting frame, 202-rotating block, 203-second connecting frame, 204-shaft connecting sleeve, 3-second steering joint, 4-locking pin assembly, 401-latch pin, 402-connecting handle, 403-locking nut, 5-connecting shaft. DETAILED DESCRIPTION

[0016] 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 in 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.

[0017] Example:

[0018] See also Figure 1-3The utility model provides the following technical solution: a coupling for a wind turbine generator, comprising a main connecting shaft assembly 1, wherein two ends of the main connecting shaft assembly 1 are respectively connected with a first steering joint 2 and a second steering joint 3, wherein the first steering joint 2 and the second steering joint 3 have the same structure, and the two steering joints establish a connection between a wind turbine drive shaft and a rotating shaft of a generator set, wherein the wind turbine drive shaft is connected to one of the steering joints, and the rotating shaft of the generator set is connected to the other steering joint, wherein the first steering joint 2 comprises a first connecting frame 201, wherein a rotating block 202 is rotatably connected to the inner side of the first connecting frame 201, wherein a second connecting frame 203 is rotatably connected to the rotating block 202, wherein the first ...1 is rotatably connected to the rotating block 202, An axis connecting sleeve 204 is integrally formed at the end of the second connecting frame 203, and the axis connecting sleeve 204 is fixedly connected to the axis to be connected. The rotating block 202 and the second connecting frame 203 can rotate around the axis under the action of external force, so that the steering joint can be rotated as needed. The steering joint, as the connecting end of the coupling, can face different directions and connect the fan drive shaft and the generator set of different axes, which is more suitable for use in the fan generator. The fan drive shaft works to drive the second connecting frame 203 to rotate, and the rotating block 202 rotates accordingly. The rotation of the second connecting frame 203 drives the main connecting shaft assembly 1 to rotate, and finally drives the generator set to work through the second steering joint 3.

[0019] Specifically, the main connecting shaft assembly 1 includes an external connecting sleeve 101 and an internal connecting rod 102. The internal connecting rod 102 is slidably connected in the external connecting sleeve 101. A locking pin assembly 4 runs through the external connecting sleeve 101 and the internal connecting rod 102. The locking pin assembly 4 is used to fix the relative position of the external connecting sleeve 101 and the internal connecting rod 102, thereby fixing the length of the main connecting shaft assembly 1. The total length of the main connecting shaft assembly 1 can be adjusted by adjusting the extension amount of the internal connecting rod 102.

[0020] Specifically, the locking pin assembly 4 includes a pin 401, which passes through the external connecting sleeve 101 and the internal connecting rod 102, and the upper end of the pin 401 is fixedly connected with a connecting handle 402, and the lower end outer wall of the pin 401 is provided with a thread, and the lower end outer wall of the pin 401 is threadedly connected with a locking nut 403, and the external connecting sleeve 101 is provided with a first socket for inserting the pin 401, and the internal connecting rod 102 is evenly provided with second sockets used in conjunction with the first socket, and the pin 401 is fixed by tightening the locking nut 403, thereby fixing the relative position of the external connecting sleeve 101 and the internal connecting rod 102, and fixing the length of the main connecting shaft assembly 1.

[0021] Specifically, the first steering joint 2 is fixedly connected to the end of the internal connecting rod 102 , and the second steering joint 3 is fixedly connected to the end of the external connecting sleeve 101 .

[0022] Specifically, a connecting shaft 5 is provided on the inner side of the first connecting frame 201 and the second connecting frame 203, and the rotating block 202 is rotatably connected to the two connecting shafts 5. The second connecting frame 203 is driven to rotate through the fan drive shaft, and the rotating block 202 rotates accordingly. The rotation of the second connecting frame 203 drives the main connecting shaft assembly 1 to rotate, and finally drives the generator set to work through the second steering joint 3. The coupling rotates flexibly as a whole.

[0023] Specifically, the internal connecting rod 102 is a polygonal rod, the sliding cavity of the external connecting sleeve 101 matches the shape of the internal connecting rod 102, and the polygonal rod cooperates with the external connecting sleeve 101, so that the radially driven rotation is more stable.

[0024] Working principle: A first steering joint 2 and a second steering joint 3 are connected to both ends of the main connecting shaft assembly 1, respectively. The first steering joint 2 and the second steering joint 3 have the same structure. The two steering joints establish a connection between the fan drive shaft and the rotating shaft of the generator set. The fan drive shaft is connected to one of the steering joints, and the rotating shaft of the generator set is connected to the other steering joint. The first steering joint 2 includes a first connecting frame 201, and a rotating block 202 is rotatably connected to the inner side of the first connecting frame 201. The rotating block 202 is rotatably connected to the second connecting frame 203, and the end of the second connecting frame 203 is integrally formed with The shaft connecting sleeve 204 is fixedly connected to the shaft to be connected. The rotating block 202 and the second connecting frame 203 can rotate around the axis under the action of external force, so that the steering joint can be rotated as needed. The steering joint as the connecting end of the coupling can face different directions and connect the fan drive shaft and the generator set of different axes. It is more suitable for use in the fan generator. The fan drive shaft works to drive the second connecting frame 203 to rotate, and the rotating block 202 rotates accordingly. The rotation of the second connecting frame 203 drives the main connecting shaft assembly 1 to rotate, and finally drives the generator set to work through the second steering joint 3.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A coupling for a wind turbine generator, characterized in that: The invention comprises a main connecting shaft assembly (1), wherein two ends of the main connecting shaft assembly (1) are respectively connected to a first steering joint (2) and a second steering joint (3), wherein the first steering joint (2) and the second steering joint (3) have the same structure, wherein the first steering joint (2) comprises a first connecting frame (201), wherein a rotating block (202) is rotatably connected to the inner side of the first connecting frame (201), wherein a second connecting frame (203) is rotatably connected to the rotating block (202), and an end portion of the second connecting frame (203) is integrally formed with a shaft connecting sleeve (204).

2. A coupling for a wind turbine generator according to claim 1, characterized in that: The main connecting shaft assembly (1) comprises an external connecting sleeve (101) and an internal connecting rod (102), wherein the internal connecting rod (102) is slidably connected inside the external connecting sleeve (101), and a locking pin assembly (4) passes through both the external connecting sleeve (101) and the internal connecting rod (102).

3. A coupling for a wind turbine generator according to claim 2, characterized in that: The locking pin assembly (4) comprises a latch pin (401), the latch pin (401) passes through the external connection sleeve (101) and the internal connection rod (102), the upper end of the latch pin (401) is fixedly connected to a connection handle (402), the lower end outer wall of the latch pin (401) is provided with a thread, the lower end outer wall of the latch pin (401) is threadedly connected to a locking nut (403), the external connection sleeve (101) is provided with a first plug hole for inserting the latch pin (401), and the internal connection rod (102) is evenly provided with second plug holes for use with the first plug hole.

4. A coupling for a wind turbine generator according to claim 3, characterized in that: The first steering joint (2) is fixedly connected to the end of the internal connecting rod (102), and the second steering joint (3) is fixedly connected to the end of the external connecting sleeve (101).

5. A coupling for a wind turbine generator according to any one of claims 1 to 4, characterized in that: A connecting shaft (5) is provided inside the first connecting frame (201) and the second connecting frame (203), and the rotating block (202) is rotatably connected to the two connecting shafts (5).

6. A coupling for a wind turbine generator according to claim 3, characterized in that: The internal connecting rod (102) is a polygonal rod, and the sliding cavity of the external connecting sleeve (101) matches the shape of the internal connecting rod (102).

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