Electric barring gear capable of rotating along with fan impeller

Abstract

The utility model provides an electric barring gear capable of rotating along with a fan impeller, and relates to the technical field of wind turbine generator hoisting, the electric barring gear comprises a main frame body and a supporting assembly, the supporting assembly is arranged on one side of the main frame body, an inner groove is formed in the main frame body, a transmission rotation supporting ring is rotatably arranged in the inner groove, and the transmission rotation supporting ring is arranged in the main frame body. A transmission rotation supporting ring is arranged on the main frame body, meshing teeth are arranged on the outer side of the transmission rotation supporting ring, gears are arranged on the main frame body at the four corners of the inner groove, the gears are matched with the meshing teeth, a switching disc is arranged at the front end of the transmission rotation supporting ring, and a follow-up rotation supporting inner ring is arranged in the middle of the front end of the switching disc; according to the utility model, double slewing mechanisms are adopted, and the slewing mechanisms are controlled to be separated and fixed through the follow-up pin shaft, so that the purpose that the electric barring gear needs to swing along with the impeller of the fan under the power-off condition is achieved, the normal use function of the device is not influenced, and the problem that the fan cannot rotate due to power-off self-locking of the electric barring gear is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbine hoisting, in particular to an electric winch device which can rotate along with a wind turbine impeller. Background Art

[0002] The installation of single blades of large wind turbines is an important part of wind turbine installation. Single blade installation has problems such as heavy blade weight, high lifting height, and difficulty in coordination. The combination of horizontal single blade hoist and turntable device can reduce the difficulty of wind turbine hoisting and improve hoisting efficiency.

[0003] like Figure 5 、 6 If one or two blades are hoisted and the installation of the remaining blades cannot be completed for a long time, it is necessary to make the single blade vertically downward or the double blades in an "eight" state so that the impeller can swing with the wind when it is subjected to a large wind force to ensure the safety of the fan. At present, after the power is cut off, the motor brake of the electric winch device will automatically lock, resulting in the winch device being unable to achieve the function of rotating with the fan impeller, which poses a greater risk of hoisting. The previous method to solve the problem of swinging with the impeller is: after the power is cut off, the winch device is removed from the brake disc of the fan as a whole or the motor that is self-locking when the power is cut off is removed to unlock the entire winch device, and then the removed part is reinstalled before working again. This method is difficult to operate inside a small space in the engine room, and is inefficient, time-consuming and labor-intensive. Therefore, the utility model proposes an electric winch device that can rotate with the fan impeller to solve the problems existing in the prior art. Utility Model Content

[0004] In response to the above problems, the present invention proposes an electric winch device that can rotate with the fan impeller. The electric winch device that can rotate with the fan impeller is used to drive the fan impeller to rotate when the fan is hoisted with a single horizontal blade, thereby facilitating the hoisting of the blade. The separation and fixation between the driving mechanism and the output disk are controlled by the connection of the follower pin shaft, thereby solving the problem that the electric winch device needs to swing with the fan impeller under no-power conditions during the hoisting process, thereby improving the convenience of use and reducing the risk of fan hoisting.

[0005] To achieve the purpose of the utility model, the utility model is implemented through the following technical solutions: an electric winch device that can rotate with the fan impeller, including a main frame and a support assembly, the support assembly is arranged on one side of the main frame, and the interior of the main frame is provided with an inner groove, the interior of the inner groove is provided with a transmission rotary support ring, and the outer side of the transmission rotary support ring is provided with meshing teeth, the main frame at the four corners of the inner groove is provided with gears, and the gears are adapted to the meshing teeth, the front end of the transmission rotary support ring is provided with an adapter plate, and the middle position of the front end of the adapter plate is provided with a follow-up rotary support inner ring, and the outer side of the follow-up rotary support inner ring is provided with a follow-up rotary support outer ring for rotation;

[0006] An output disc is provided at the front end of the outer ring of the follower rotary support. The output disc and the inner ring of the adapter disc are both provided with interconnected connecting holes, and there are multiple groups of connecting holes. The connecting holes are used to insert the follower pin shaft, and the output disc is used to connect the brake disc.

[0007] A further improvement is that the support assembly includes a connecting arm and a support arm, the connecting arm is connected to the upper side of one side of the main frame through a connecting pin, the support arm is connected to the lower side of one side of the main frame through a connecting pin, and the upper end of the support arm and the connecting arm are connected through a connecting pin.

[0008] A further improvement is that one side of the connecting arm is connected to an adjusting rod via a connecting pin, and the lower end of the adjusting rod is connected to a connecting seat, and the connecting seat is fixed to the frame via bolts.

[0009] A further improvement is that fixed pins are provided at the four corners of the front end of the output disc, and the fixed pins are used to connect with the brake disc, the brake disc is connected to the gear box, and the output end of the gear box is connected to the impeller through the main shaft.

[0010] A further improvement is that: driving reduction motors are provided at the four corners of the rear end of the main frame, and the output ends of the four groups of driving reduction motors are respectively connected to the four groups of gears.

[0011] A further improvement is that a bearing ring is provided at the rear end of the inner groove, and the bearing ring is fixed to the main frame by bolts, and the transmission rotary support ring is rotatably provided on the outside of the bearing ring.

[0012] A further improvement is that: a first fastening bolt is provided at the edge of the adapter plate, and a plurality of first fastening bolts are provided around the adapter plate, and the adapter plate is fixed to the transmission rotary support ring by the first fastening bolts.

[0013] A further improvement is that second fastening bolts are provided at the edge of the output disc, and multiple groups of second fastening bolts are provided around the output disc, and the output disc is fixed to the follower rotary support outer ring through the second fastening bolts.

[0014] A further improvement is that a third fastening bolt is provided on the inner ring of the follower rotary support, and multiple groups of third fastening bolts are provided around the inner ring of the follower rotary support, and the inner ring of the follower rotary support is fixed to the adapter plate by the third fastening bolts.

[0015] The beneficial effects of the utility model are:

[0016] When the impeller is swung, the brake disc drives the output disc and the outer ring of the follower swivel support connected thereto to rotate in the opposite direction, so that the electric winching device needs to swing with the fan impeller under power-off conditions. The double-swing mechanism is separated and fixed by the follower pin, which does not affect the normal function of the device and solves the problem that the fan cannot rotate due to the self-locking of the electric winching device when the power is off, thereby improving the convenience of use and reducing the risk of fan hoisting.

[0017] 2. The support arm and connecting arm of the utility model are fixed to the main frame with a connecting pin, the other end of the support arm is fixed to the connecting arm with a connecting pin, the other end of the connecting arm is connected to the adjusting rod with a connecting pin, the lower part of the adjusting rod is connected to the connecting seat, which is fixed to the frame of the fan with bolts, supporting and pulling the main frame without rotating, and being more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the main view of the utility model;

[0019] Figure 2 It is a side cross-sectional schematic diagram of the utility model;

[0020] Figure 3 It is a schematic diagram of the back side of the utility model;

[0021] Figure 4 This is a schematic diagram of the working principle of the utility model;

[0022] Figure 5 This is a schematic diagram of a single blade pointing vertically downward;

[0023] Figure 6 It is a schematic diagram of the double leaves in the shape of an "eight".

[0024] Among them: 1. Main frame; 2. Transmission rotary support ring; 3. Gear; 4. Adapter plate; 5. Follower rotary support inner ring; 6. Follower rotary support outer ring; 7. Output plate; 8. Connecting hole; 9. Follower pin; 10. Brake disc; 11. Connecting arm; 12. Support arm; 13. Adjusting rod; 14. Connecting seat; 15. Frame; 16. Fixed pin; 17. Gearbox; 18. Main shaft; 19. Impeller; 20. Drive reduction motor; 21. Bearing ring. DETAILED DESCRIPTION

[0025] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments. The embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0026] Example 1

[0027] according to Figure 1 、 2 As shown in Figures 3 and 4, this embodiment proposes an electric winch device that can rotate with the fan impeller, including a main frame 1 and a support assembly, the support assembly is arranged on one side of the main frame 1, and an inner groove is provided inside the main frame 1, a transmission rotary support ring 2 is provided for rotation inside the inner groove, and meshing teeth are provided on the outer side of the transmission rotary support ring 2, gears 3 are provided on the main frame 1 at the four corners of the inner groove, and the gears 3 are adapted to the meshing teeth, an adapter plate 4 is provided at the front end of the transmission rotary support ring 2, and a follow-up rotary support inner ring 5 is provided at the middle position of the front end of the adapter plate 4, and a follow-up rotary support outer ring 6 is provided for rotation on the outer side of the follow-up rotary support inner ring 5;

[0028] An output disk 7 is provided at the front end of the outer ring 6 of the follower rotary support. The output disk 7 and the inner ring of the adapter disk 4 are both provided with interconnected connecting holes 8, and there are multiple groups of connecting holes 8. The connecting holes 8 are used to insert the follower pin shaft 9, and the output disk 7 is used to connect the brake disk 10. During use, during normal operation, the follower pin 9 is installed in the connecting hole 8 on the output disc 7 and the adapter disc 4, and the gear 3 drives the transmission rotary support ring 2, the adapter disc 4, the follower rotary support inner ring 5, the follower rotary support outer ring 6 and the output disc 7 to rotate, thereby driving the brake disc 10 of the fan to rotate and perform normal cranking operation. When the power is disconnected and the fan is to swing with the impeller, the follower pin 9 is pulled out before the power is turned off. At this time, the output disc 7 and the adapter disc 4 are relatively separated. When the reduction motor 20 is driven to automatically lock the brake after power is cut off, the transmission rotary support ring 2, the adapter disc 4, and the follower rotary support inner ring 5 cannot rotate. When the impeller swings, the brake disc will drive the output disc 7 and the follower rotary support outer ring 6 connected thereto to rotate in the opposite direction, so as to achieve the purpose of the electric cranking device needing to swing with the fan impeller under no-power conditions.

[0029] The support assembly includes a connecting arm 11 and a support arm 12. The connecting arm 11 is connected to the upper side of the main frame 1 via a connecting pin, and the support arm 12 is connected to the lower side of the main frame 1 via a connecting pin. The upper end of the support arm 12 and the connecting arm 11 are connected via a connecting pin. One side of the connecting arm 11 is connected to an adjustment rod 13 via a connecting pin, and the lower end of the adjustment rod 13 is connected to a connecting seat 14, and the connecting seat 14 is fixed to the frame 15 via bolts. The support arm 12 and the connecting arm 11 are fixed to the main frame 1 via a connecting pin. The other end of the support arm 12 is fixed to the connecting arm 11 via a connecting pin. The other end of the connecting arm 11 is connected to the adjustment rod 13 via a connecting pin. The lower end of the adjustment rod 13 is connected to the connecting seat 14 and is fixed to the frame 15 of the fan with bolts, supporting and pulling the main frame 1 without rotation, thereby providing greater stability.

[0030] The output disc 7 is equipped with fixed pins 16 at each of its four corners. These pins are used to connect to the brake disc 10. The brake disc 10 is connected to a gearbox 17, and the output end of the gearbox 17 is connected to an impeller 19 via a main shaft 18. The device, brake disc 10, gearbox 17, and main shaft 18 are all located inside the wind turbine nacelle. During normal operation, the follower pin 9 is installed in the connection hole 8 on the output disc 7 and the adapter disc 4. The gear 3 drives the transmission rotary support ring 2, the adapter disc 4, the follower rotary support inner ring 5, the follower rotary support outer ring 6, and the output disc 7 to rotate, thereby driving the wind turbine's brake disc 10. The brake disc 10 drives the impeller 19, which consists of a hub and blades, to rotate through the gearbox 17 and main shaft 18. The impeller 19 performs normal cranking operations.

[0031] The four corners of the rear end of the main frame 1 are each provided with a driving reduction motor 20, and the output ends of the four groups of driving reduction motors 20 are respectively connected to the four groups of gears 3. When in use, the driving reduction motor 20 drives the gear 3 to rotate, and the gear 3 is adapted to the meshing teeth, driving the transmission rotary support ring 2, the adapter plate 4, the follower rotary support inner ring 5, the follower rotary support outer ring 6 and the output plate 7 to rotate, thereby driving the brake disc 10 of the fan to rotate and perform normal cranking operation. When the fan is to swing with the impeller after the power is disconnected, the follower pin 9 is pulled out before the power is turned off. At this time, the output disc 7 and the adapter plate 4 are relatively separated. When the driving reduction motor 20 brake is automatically locked after the power is turned off, the transmission rotary support ring 2, the adapter plate 4 and the follower rotary support inner ring 5 cannot rotate.

[0032] A bearing ring 21 is provided at the rear end of the inner groove, and the bearing ring 21 is fixed to the main frame 1 by bolts, and the transmission rotary support ring 2 is rotatably arranged on the outside of the bearing ring 21. The transmission rotary support ring 2 is supported by the bearing ring 21, defines the position of the transmission rotary support ring 2, and allows the transmission rotary support ring 2 to rotate.

[0033] Example 2

[0034] according to Figure 1 、 2 As shown in Figures 3 and 4, this embodiment proposes an electric winch device that can rotate with the fan impeller, including a main frame 1 and a support assembly, the support assembly is arranged on one side of the main frame 1, and an inner groove is provided inside the main frame 1, a transmission rotary support ring 2 is provided for rotation inside the inner groove, and meshing teeth are provided on the outer side of the transmission rotary support ring 2, gears 3 are provided on the main frame 1 at the four corners of the inner groove, and the gears 3 are adapted to the meshing teeth, an adapter plate 4 is provided at the front end of the transmission rotary support ring 2, and a follow-up rotary support inner ring 5 is provided at the middle position of the front end of the adapter plate 4, and a follow-up rotary support outer ring 6 is provided for rotation on the outer side of the follow-up rotary support inner ring 5;

[0035] An output disk 7 is provided at the front end of the outer ring 6 of the follower rotary support. The output disk 7 and the inner ring of the adapter disk 4 are both provided with interconnected connecting holes 8, and there are multiple groups of connecting holes 8. The connecting holes 8 are used to insert the follower pin shaft 9, and the output disk 7 is used to connect the brake disk 10. During use, during normal operation, the follower pin 9 is installed in the connecting hole 8 on the output disc 7 and the adapter disc 4, and the gear 3 drives the transmission rotary support ring 2, the adapter disc 4, the follower rotary support inner ring 5, the follower rotary support outer ring 6 and the output disc 7 to rotate, thereby driving the brake disc 10 of the fan to rotate and perform normal cranking operation. When the power is disconnected and the fan is to swing with the impeller, the follower pin 9 is pulled out before the power is turned off. At this time, the output disc 7 and the adapter disc 4 are relatively separated. When the reduction motor 20 is driven to automatically lock the brake after power is cut off, the transmission rotary support ring 2, the adapter disc 4, and the follower rotary support inner ring 5 cannot rotate. When the impeller swings, the brake disc will drive the output disc 7 and the follower rotary support outer ring 6 connected thereto to rotate in the opposite direction, so as to achieve the purpose of the electric cranking device needing to swing with the fan impeller under no-power conditions.

[0036] A bearing ring 21 is provided at the rear end of the inner groove, and the bearing ring 21 is fixed to the main frame 1 by bolts, and the transmission rotary support ring 2 is rotatably arranged on the outside of the bearing ring 21. The transmission rotary support ring 2 is supported by the bearing ring 21, defines the position of the transmission rotary support ring 2, and allows the transmission rotary support ring 2 to rotate.

[0037] The adapter plate 4 is secured to the transmission rotary support ring 2 with first fastening bolts located at its edge, with multiple sets of these bolts arranged around the edge. The output plate 7 is secured to the follower rotary support outer ring 6 with second fastening bolts located at its edge, with multiple sets of these bolts arranged around the edge. The follower rotary support inner ring 5 is secured to the adapter plate 4 with third fastening bolts located at multiple sets around the ring. Multiple sets of these bolts around the ring provide a more secure connection and prevent loosening.

[0038] When the electric turning device that can rotate with the fan impeller is working normally, the follower pin shaft 9 is installed in the connecting hole 8 on the output disk 7 and the adapter disk 4, and the gear 3 drives the transmission rotary support ring 2, the adapter disk 4, the follower rotary support inner ring 5, the follower rotary support outer ring 6 and the output disk 7 to rotate, thereby driving the brake disk 10 of the fan to rotate and perform normal turning operation. When the power is disconnected and the impeller is to be swung, the follower pin shaft 9 is pulled out before the power is turned off. At this time, the output disk 7 and the adapter disk 4 are relatively separated, and the reduction motor 20 is driven to automatically brake after the power is turned off. When locked, the transmission rotary support ring 2, the adapter plate 4, and the follower rotary support inner ring 5 cannot rotate. When the impeller swings, the brake disc will reversely drive the output disc 7 and the follower rotary support outer ring 6 connected to it to rotate, so that the electric winch device needs to swing with the fan impeller under power-off conditions. The dual rotary mechanism controls the separation and fixation of the rotary mechanism through the follower pin 9, which does not affect the normal function of the device and solves the problem of the electric winch device being unable to rotate due to power-off self-locking, thereby improving the convenience of use and reducing the risk of fan hoisting. The support arm 12 and the connecting arm 11 are fixed to the main frame 1 with a connecting pin. The other end of the support arm 12 is fixed to the connecting arm 11 with a connecting pin. The other end of the connecting arm 11 is connected to the adjustment rod 13 with a connecting pin. The lower part of the adjustment rod 13 is connected to the connecting seat 14, which is fixed to the fan frame 15 with bolts, supporting and pulling the main frame 1 without rotation, making it more stable.

[0039] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. An electric winch device capable of rotating with a fan impeller, comprising a main frame (1) and a support assembly, characterized in that: The support assembly is arranged on one side of the main frame (1), and an inner groove is provided inside the main frame (1), a transmission rotary support ring (2) is provided for rotation inside the inner groove, and meshing teeth are provided on the outer side of the transmission rotary support ring (2), gears (3) are provided on the main frame (1) at the four corners of the inner groove, and the gears (3) are adapted to the meshing teeth, a transfer plate (4) is provided at the front end of the transmission rotary support ring (2), and a follower rotary support inner ring (5) is provided at the middle position of the front end of the transfer plate (4), and a follower rotary support outer ring (6) is provided for rotation outside the follower rotary support inner ring (5); An output disc (7) is provided at the front end of the outer ring (6) of the follower rotary support, and the inner rings of the output disc (7) and the adapter disc (4) are both provided with connecting holes (8) that are connected to each other, and there are multiple groups of connecting holes (8), and the connecting holes (8) are used to insert the follower pin shaft (9), and the output disc (7) is used to connect to the brake disc (10).

2. The electric turning device capable of rotating with the fan impeller according to claim 1, characterized in that: The support assembly comprises a connecting arm (11) and a supporting arm (12), wherein the connecting arm (11) is connected to the upper side of one side of the main frame (1) via a connecting pin, and the supporting arm (12) is connected to the lower side of one side of the main frame (1) via a connecting pin, and the upper end of the supporting arm (12) and the connecting arm (11) are connected via a connecting pin.

3. The electric turning device capable of rotating with the fan impeller according to claim 2, characterized in that: One side of the connecting arm (11) is connected to an adjusting rod (13) via a connecting pin, and the lower end of the adjusting rod (13) is connected to a connecting seat (14), and the connecting seat (14) is fixed to the frame (15) via bolts.

4. The electric turning device capable of rotating with the fan impeller according to claim 1, characterized in that: The four corners of the front end of the output disc (7) are each provided with a fixing pin (16), and the fixing pin (16) is used to connect with the brake disc (10). The brake disc (10) is connected to the gear box (17), and the output end of the gear box (17) is connected to the impeller (19) through the main shaft (18).

5. The electric turning device capable of rotating with the fan impeller according to claim 1, characterized in that: The four corners of the rear end of the main frame (1) are each provided with a driving reduction motor (20), and the output ends of the four groups of the driving reduction motors (20) are respectively connected to the four groups of the gears (3).

6. The electric turning device capable of rotating with the fan impeller according to claim 1, characterized in that: A bearing ring (21) is provided at the rear end of the inner groove, and the bearing ring (21) is fixed to the main frame (1) by bolts, and the transmission rotary support ring (2) is rotatably arranged outside the bearing ring (21).

7. The electric turning device capable of rotating with the fan impeller according to claim 1, characterized in that: A first fastening bolt is provided at the edge of the adapter plate (4), and a plurality of first fastening bolts are provided around the adapter plate (4). The adapter plate (4) is fixed to the transmission rotary support ring (2) via the first fastening bolts.

8. The electric turning device capable of rotating with the fan impeller according to claim 7, characterized in that: A second fastening bolt is provided at the edge of the output disc (7), and a plurality of second fastening bolts are provided around the output disc (7). The output disc (7) is fixed to the follower rotary support outer ring (6) via the second fastening bolts.

9. The electric turning device capable of rotating with the fan impeller according to claim 8, characterized in that: The follower rotary support inner ring (5) is provided with a third fastening bolt, and a plurality of third fastening bolts are provided around the follower rotary support inner ring (5). The follower rotary support inner ring (5) is fixed to the adapter plate (4) via the third fastening bolts.

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