Main frame of wind driven generator

Abstract

The utility model relates to the technical field of wind driven generators, and discloses a main frame of a wind driven generator, which comprises a frame body, a left limit frame is arranged on the outer wall of the frame body, a right limit frame is arranged on the outer wall of the frame body, the right limit frame and the left limit frame are symmetrical, a U-shaped cushion block is arranged on the inner wall of the right limit frame, and the U-shaped cushion block is arranged on the outer wall of the frame body. The outer wall of the U-shaped cushion block is sleeved with a spring. According to the main machine frame of the wind driven generator, through the sliding connection effect between an outer buckle and an inner buckle, when the main machine frame is fixed by equipment, fastening of a left expansion plate to the main machine frame can be directly controlled through the fixing effect between a locking rod and an outer fixing groove, and when the main machine frame is fixed by a left arc-shaped clamping groove, the left expansion plate is not prone to falling off when the main machine frame is fixed. The elastic tension released by the spring can push the U-shaped cushion block to fix the main frame, so that the main frame can be effectively prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbines, in particular to a main frame of a wind turbine. Background Art

[0002] A wind turbine, a device that converts wind energy into mechanical energy and then electrical energy, primarily consists of blades, a hub, a nacelle, and a tower. The nacelle houses a mainframe, which supports the main shaft, bearing housing, gearbox, and yaw system. The mainframe is rotatably connected to the tower, allowing the nacelle to rotate relative to the tower.

[0003] In the existing wind turbine main frame, when the main frame is supported and fixed, the tower and the main frame are fixed, so when the equipment is generating wind power, the wind will drive the tower and the main frame to shake, which can easily cause the main frame to shake and cause the main frame to fall over. In addition, when the main frame shakes, it is easy to collide with the connecting mechanism. Therefore, a wind turbine main frame is proposed. Utility Model Content

[0004] The utility model provides the following technical solution: a main frame of a wind turbine generator, comprising a frame body, an outer wall of the frame body being provided with a left limit frame, an outer wall of the frame body being provided with a right limit frame, and the right limit frame being symmetrical to the left limit frame, an inner wall of the right limit frame being provided with a U-shaped pad, and an outer wall of the U-shaped pad being sleeved with a spring.

[0005] As an optimal technical solution of the present invention, the outer wall of the frame body is fixedly connected with a right arc-shaped slot, the inner wall of the right arc-shaped slot is sleeved with a right arc-shaped slider, and the right arc-shaped slot and the right arc-shaped slider are slidingly connected, the outer wall of the right arc-shaped slider is fixedly connected with a right expansion plate, and the right expansion plate is fixedly connected with an inner buckle on the side away from the right arc-shaped slider, and the outer wall of the inner buckle is provided with multiple internal fixing grooves, and the multiple internal fixing grooves are distributed in a circular array on the outer wall of the inner buckle.

[0006] As an optimal technical solution of the present invention, the outer wall of the frame body is fixedly connected with a left arc-shaped slot, the inner wall of the left arc-shaped slot is provided with a left arc-shaped slider, the left arc-shaped slot and the left arc-shaped slider are slidingly connected, the left arc-shaped slider is fixedly connected with a left expansion plate on the side away from the left arc-shaped slot, the outer wall of the left expansion plate is fixedly connected with an external clip, the outer wall of the external clip is provided with a plurality of external fixing grooves, and the plurality of external fixing grooves are distributed in a circular array on the outer wall of the external clip, and the inner wall of the external fixing groove is sleeved with a locking rod.

[0007] As an optimal technical solution of the present invention, the outer wall of the frame body is provided with a pad, the outer wall of the pad is provided with a connecting groove, the outer wall of the connecting groove is provided with a connecting bolt, and the connecting groove and the connecting bolt are fixed by a threaded connection.

[0008] As a preferred technical solution of the present invention, the pad is fixedly connected to a plurality of support frames on a side away from the frame body, and the plurality of support frames are symmetrically distributed on the bottom of the pad.

[0009] As a preferred technical solution of the present invention, the outer buckle and the inner buckle are fixed to each other through a buckle connection, the outer fixing groove and the inner fixing groove are slidably connected, and the locking rod passes through the outer fixing groove.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] The main frame of the wind turbine generator, through the sliding connection between the outer clip and the inner clip, can control the fastening of the left expansion plate to the main frame directly through the fixing action between the locking rod and the outer fixing groove when the device is fixing the main frame. In addition, when the left arc-shaped clip is used to fix the main frame, the elastic tension released by the spring can push the U-shaped pad to fix the main frame, thereby effectively preventing the main frame from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 Schematic diagram of the three-dimensional structure of a main frame of a wind turbine;

[0013] Figure 2 This is a schematic diagram of the structure of connecting bolts in a main frame of a wind turbine;

[0014] Figure 3 This is a structural diagram of a left limit frame in a main frame of a wind turbine;

[0015] Figure 4 The figure is a structural diagram of the right limit frame in the main frame of a wind turbine.

[0016] In the figure: 1. Frame body; 2. Pad; 3. Support frame; 4. Right limit frame; 41. Right arc-shaped slot; 42. Right arc-shaped slider; 43. Right expansion plate; 44. Inner buckle; 45. Inner fixing slot; 5. U-shaped pad; 6. Spring; 7. Left limit frame; 71. Left arc-shaped slot; 72. Left arc-shaped slider; 73. Left expansion plate; 74. Outer buckle; 75. Outer fixing slot; 76. Locking rod; 8. Connecting groove; 9. Connecting bolt. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0018] See also Figure 1-4, a wind turbine main frame, including a frame body 1, an outer wall of the frame body 1 is provided with a left limit frame 7, an outer wall of the frame body 1 is provided with a right limit frame 4, and the right limit frame 4 is symmetrical with the left limit frame 7, and the inner wall of the right limit frame 4 is provided with a U-shaped pad 5, and the outer wall of the U-shaped pad 5 is sleeved with a spring 6, wherein a spring 6 is provided on the outer wall of the U-shaped pad 5, so that when the equipment is performing on the generator main frame, the U-shaped pad 5 can limit the frame, and when the U-shaped pad 5 clamps the frame, the elastic tension provided by the spring 6 can separate the spring 6 from the right limit frame 4 and the left limit frame 7, thereby effectively preventing the generator main frame from being damaged by force, and the outer wall of the frame body 1 is fixedly connected with a right arc-shaped slot 41, and the inner wall of the right arc-shaped slot 41 is sleeved with a right arc shaped slider 42, and the right arc-shaped slot 41 is slidably connected to the right arc-shaped slider 42, the outer wall of the right arc-shaped slider 42 is fixedly connected with a right expansion plate 43, the right expansion plate 43 is fixedly connected with an inner buckle 44 on the side away from the right arc-shaped slider 42, the outer wall of the inner buckle 44 is provided with a plurality of inner fixing grooves 45, and the plurality of inner fixing grooves 45 are distributed in a circular array on the outer wall of the inner buckle 44, the outer wall of the frame body 1 is fixedly connected with a left arc-shaped slot 71, the inner wall of the left arc-shaped slot 71 is provided with a left arc-shaped slider 72, the left arc-shaped slot 71 is slidably connected to the left arc-shaped slider 72, the left arc-shaped slider 72 is fixedly connected with a left expansion plate 73 on the side away from the left arc-shaped slot 71, the outer wall of the left expansion plate 73 is fixedly connected with an outer buckle 74, the outer buckle 7 4 is provided with a plurality of external fixing grooves 75, and the plurality of external fixing grooves 75 are distributed in a circumferential array on the outer wall of the outer buckle 74, and the inner wall of the external fixing groove 75 is sleeved with a locking rod 76, wherein the left arc-shaped card groove 71 and the left arc-shaped slider 72 and the right arc-shaped card groove 41 and the right arc-shaped slider 42 are all slidably connected, so that when the equipment is fixed, the worker can pull the left arc-shaped slider 72 and the right arc-shaped slider 42 to extend the fixing range of the left arc-shaped card groove 71 and the right arc-shaped card groove 41, thereby facilitating the fixing of the equipment to the main frame of the generator. The outer wall of the frame body 1 is provided with a pad 2, and the outer wall of the pad 2 is provided with a connecting groove 8, and the outer wall of the connecting groove 8 is provided with a connecting bolt 9, and the connecting groove 8 and the connecting bolt 9 are fixed by a threaded connection. Among them, through the threaded connection between the connecting groove 8 and the connecting bolt 9, after the equipment is aligned, the worker can directly twist the connecting bolt 9 to tighten the symmetrical pad 2, so that the U-shaped pad 5 can limit and fix the main frame of the generator. The pad 2 is fixedly connected to a plurality of support frames 3 on the side away from the frame body 1, and the plurality of support frames 3 are symmetrically distributed at the bottom of the pad 2, wherein the support frames 3 can provide a stable supporting force for the equipment when the equipment is working, and can ensure the stable connection of the equipment. The outer clip 74 and the inner clip 44 are fixed by a clip connection, and the outer fixing groove 75 and the inner fixing groove 45 are slidably connected, and the locking rod 76 passes through the outer fixing groove 75, wherein, after the outer clip 74 and the inner clip 44 are aligned,The outer fixing groove 75 and the inner fixing groove 45 are connected, and the locking rod 76 passes through the outer fixing groove 75 and the inner fixing groove 45, thereby enhancing the connection stability of the device.

[0019] Working principle: when the equipment needs to be used, the worker fixes the main frame, fixes the main frame with the paired frame bodies 1, twists the connecting bolts 9 to fix the support frame 3, and after the frame body 1 is fixed to the main frame, inserts the locking rod 76 into the outer fixing groove 75 to fix the main frame.

[0020] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A main frame of a wind turbine generator, comprising a frame body (1), characterized in that: The outer wall of the frame body (1) is provided with a left limit frame (7), the outer wall of the frame body (1) is provided with a right limit frame (4), and the right limit frame (4) is symmetrical with the left limit frame (7), the inner wall of the right limit frame (4) is provided with a U-shaped pad (5), and the outer wall of the U-shaped pad (5) is sleeved with a spring (6).

2. A wind turbine main frame according to claim 1, characterized in that: The outer wall of the frame body (1) is fixedly connected with a right arc-shaped slot (41), the inner wall of the right arc-shaped slot (41) is sleeved with a right arc-shaped slider (42), and the right arc-shaped slot (41) and the right arc-shaped slider (42) are slidably connected, the outer wall of the right arc-shaped slider (42) is fixedly connected with a right expansion plate (43), the right expansion plate (43) is fixedly connected with an inner buckle (44) on a side away from the right arc-shaped slider (42), the outer wall of the inner buckle (44) is provided with a plurality of inner fixing grooves (45), and the plurality of inner fixing grooves (45) are distributed in a circumferential array on the outer wall of the inner buckle (44).

3. A wind turbine main frame according to claim 2, characterized in that: The outer wall of the frame body (1) is fixedly connected with a left arc-shaped slot (71), the inner wall of the left arc-shaped slot (71) is provided with a left arc-shaped slide block (72), the left arc-shaped slot (71) and the left arc-shaped slide block (72) are slidably connected, the left arc-shaped slide block (72) is fixedly connected with a left expansion plate (73) on a side away from the left arc-shaped slot (71), the outer wall of the left expansion plate (73) is fixedly connected with an external buckle (74), the outer wall of the external buckle (74) is provided with a plurality of external fixing grooves (75), and the plurality of external fixing grooves (75) are distributed in a circumferential array on the outer wall of the external buckle (74), and the inner wall of the external fixing groove (75) is sleeved with a locking rod (76).

4. A wind turbine main frame according to claim 1, characterized in that: The outer wall of the frame body (1) is provided with a backing plate (2), the outer wall of the backing plate (2) is provided with a connecting groove (8), the outer wall of the connecting groove (8) is provided with a connecting bolt (9), and the connecting groove (8) and the connecting bolt (9) are fixed by a threaded connection.

5. A wind turbine main frame according to claim 4, characterized in that: The pad (2) is fixedly connected to a plurality of support frames (3) on a side away from the frame body (1), and the plurality of support frames (3) are symmetrically distributed on the bottom of the pad (2).

6. A wind turbine main frame according to claim 3, characterized in that: The outer buckle (74) and the inner buckle (44) are fixed to each other through a buckle connection, and the outer fixing groove (75) and the inner fixing groove (45) are slidably connected, and the locking rod (76) passes through the outer fixing groove (75).

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