Electric barring gear capable of rotating along with fan impeller

Abstract

The invention 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, and a transmission rotation supporting ring is rotationally arranged in the inner groove; 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 electric barring gear, the double swing mechanisms are adopted, separation and fixation of the swing mechanisms are controlled through the follow-up pin shafts, the purpose that the electric barring gear needs to swing along with a fan impeller under the power-off condition is achieved, the normal use function of the device is not affected, and the problem that a fan cannot rotate due to power-off self-locking of the electric barring gear is solved.

Description

Technical Field

[0001] The invention relates to the technical field of wind turbine hoisting, and in particular to an electric winch device capable of rotating 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 hoisting height, and difficulty in coordination. The combination of horizontal single blade hoisting device and turntable device can reduce the difficulty of wind turbine hoisting and improve hoisting efficiency. like Figure 5 , 6 If, after one or two blades are hoisted, it takes a long time to complete the installation of the remaining blades, it is necessary to make a single blade vertically downward or 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, and there is a large 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 completely removed from the brake disc of the fan or the motor that is self-locking when the power is cut off is removed to unlock the entire winch device, and the removed part is reinstalled before working again. This method is difficult to operate inside a cabin with a small space, and is inefficient, time-consuming and labor-intensive. Therefore, the present invention proposes an electric winch device that can rotate with the fan impeller to solve the problems existing in the prior art. Summary of the invention

[0003] In view of 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 blade horizontally, 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 power-free conditions during the hoisting process, thereby improving the convenience of use and reducing the risk of fan hoisting.

[0004] To achieve the purpose of the present invention, the present invention 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 an inner groove is arranged inside the main frame, a transmission rotary support ring is arranged inside the inner groove for rotation, and meshing teeth are arranged on the outer side of the transmission rotary support ring, gears are arranged on the main frame at the four corners of the inner groove, and the gears are matched with the meshing teeth, a transfer plate is arranged at the front end of the transmission rotary support ring, and a follower rotary support inner ring is arranged at the middle position of the front end of the transfer plate, and a follower rotary support outer ring is arranged on the outer side of the follower rotary support inner ring for rotation; An output disk is provided at the front end of the outer ring of the follower rotary support, and the inner rings of the output disk and the adapter disk 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 disk is used to connect the brake disc.

[0005] A further improvement is that the support assembly includes a connecting arm and a supporting arm, the connecting arm is connected to the upper side of one side of the main frame through a connecting pin, the supporting 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.

[0006] 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.

[0007] 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.

[0008] 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.

[0009] 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 arranged on the outside of the bearing ring.

[0010] 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.

[0011] A further improvement is that: a second fastening bolt is provided at the edge of the output disk, and a plurality of second fastening bolts are provided around the output disk, and the output disk is fixed to the follower slewing support outer ring by the second fastening bolts.

[0012] A further improvement is that a third fastening bolt is provided on the inner ring of the follower rotary support, and a plurality 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.

[0013] The beneficial effects of the present invention are: 1. When the present invention is in normal operation, the follower pin is installed in the connecting holes on the output disk and the adapter disk, and the gear drives the transmission slewing support ring, the adapter disk, the follower slewing support inner ring, the follower slewing support outer ring and the output disk to rotate, thereby driving the brake disk of the fan to rotate and perform normal cranking operation. When the power is disconnected and the impeller is to be swung, the follower pin is pulled out before the power is turned off, and at this time, the output disk and the adapter disk are relatively separated. When the reduction motor brake is automatically locked after the power is off, the transmission slewing support ring, the adapter disk and the follower slewing support inner ring cannot rotate. When the impeller swings, the brake disk will reversely drive the output disk and the follower slewing support outer ring connected thereto to rotate, so as to achieve the purpose that the electric cranking device needs to swing with the fan impeller under the condition of no electricity. The double rotary mechanism controls the separation and fixation of the rotary mechanism through the follower pin, which not only does not affect the function of the normal use of the device, but also solves the problem that the fan cannot rotate due to the power-off self-locking of the electric cranking device, thereby improving the convenience of use and reducing the risk of fan hoisting.

[0014] 2. The support arm and the connecting arm of the present invention 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, so as to support and pull the main frame without rotating, and is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view of the present invention; Figure 2 It is a side cross-sectional schematic diagram of the present invention; Figure 3 It is a back schematic diagram of the present invention; Figure 4 It is a schematic diagram of the working principle of the present invention; Figure 5 This is a schematic diagram of a single blade pointing vertically downward; Figure 6 It is a schematic diagram of the double leaves in an "eight" shape.

[0016] Among them: 1. Main frame; 2. Transmission rotary support ring; 3. Gear; 4. Adapter plate; 5. Follow-up rotary support inner ring; 6. Follow-up rotary support outer ring; 7. Output plate; 8. Connecting hole; 9. Follow-up pin shaft; 10. Brake disc; 11. Connecting arm; 12. Support arm; 13. Adjusting rod; 14. Connecting seat; 15. Frame; 16. Fixed pin shaft; 17. Gear box; 18. Main shaft; 19. Impeller; 20. Driving reduction motor; 21. Bearing ring. DETAILED DESCRIPTION

[0017] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with examples. The examples are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0018] Embodiment 1 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 arranged inside the main frame 1, a transmission rotary support ring 2 is arranged inside the inner groove for rotation, and meshing teeth are arranged on the outer side of the transmission rotary support ring 2, gears 3 are arranged on the main frame 1 at the four corners of the inner groove, and the gears 3 are matched with the meshing teeth, a transfer plate 4 is arranged at the front end of the transmission rotary support ring 2, and a follower rotary support inner ring 5 is arranged at the middle position of the front end of the transfer plate 4, and a follower rotary support outer ring 6 is arranged on the outer side of the follower rotary support inner ring 5 for rotation; 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. When in use, during normal operation, the follower pin 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 performing 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 disk 7 and the adapter disk 4 are relatively separated. When the brake of the driving reduction motor 20 is automatically locked after the power is turned off, the transmission rotary support ring 2, the adapter disk 4, and the follower rotary support inner ring 5 cannot rotate. When the impeller swings, the brake disk will drive the output disk 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 power-off conditions.

[0019] The support assembly includes a connecting arm 11 and a supporting arm 12. The connecting arm 11 is connected to the upper side of one side of the main frame 1 through a connecting pin, and the supporting arm 12 is connected to the lower side of one side of the main frame 1 through a connecting pin. The upper end of the supporting arm 12 and the connecting arm 11 are connected through a connecting pin. One side of the connecting arm 11 is connected to an adjusting rod 13 through 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 a frame 15 through bolts. The supporting arm 12 and the connecting arm 11 are fixed to the main frame 1 through a connecting pin, and the other end of the supporting arm 12 is fixed to the connecting arm 11 through a connecting pin, and the other end of the connecting arm 11 is connected to the adjusting rod 13 through a connecting pin, and the lower side of the adjusting rod 13 is connected to the connecting seat 14, which is fixed to the frame 15 of the fan with bolts, so as to support and pull the main frame 1 without rotation, and to be more stable.

[0020] The four corners of the front end of the output disc 7 are all provided with fixed pins 16, and the fixed pins 16 are 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. The device, the brake disc 10, the gear box 17 and the main shaft 18 are all located inside the fan cabin. In 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 the brake disc 10 drives the impeller 19 to rotate through the gear box 17 and the main shaft 18. The impeller 19 is composed of a hub and blades, and performs normal turning operation.

[0021] The four corners of the rear end of the main frame 1 are provided with driving reduction motors 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, and then driving the brake disc 10 of the fan to rotate, and perform normal turning operation. When the power is disconnected and the impeller is to swing, the follower pin shaft 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 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.

[0022] 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. The transmission rotary support ring 2 is supported by the bearing ring 21, the position of the transmission rotary support ring 2 is limited, and the transmission rotary support ring 2 is allowed to rotate.

[0023] Embodiment 2 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 arranged inside the main frame 1, a transmission rotary support ring 2 is arranged inside the inner groove for rotation, and meshing teeth are arranged on the outer side of the transmission rotary support ring 2, gears 3 are arranged on the main frame 1 at the four corners of the inner groove, and the gears 3 are matched with the meshing teeth, a transfer plate 4 is arranged at the front end of the transmission rotary support ring 2, and a follower rotary support inner ring 5 is arranged at the middle position of the front end of the transfer plate 4, and a follower rotary support outer ring 6 is arranged on the outer side of the follower rotary support inner ring 5 for rotation; 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. When in use, during normal operation, the follower pin 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 performing 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 disk 7 and the adapter disk 4 are relatively separated. When the brake of the driving reduction motor 20 is automatically locked after the power is turned off, the transmission rotary support ring 2, the adapter disk 4, and the follower rotary support inner ring 5 cannot rotate. When the impeller swings, the brake disk will drive the output disk 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 power-off conditions.

[0024] 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. The transmission rotary support ring 2 is supported by the bearing ring 21, the position of the transmission rotary support ring 2 is limited, and the transmission rotary support ring 2 is allowed to rotate.

[0025] 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, and the adapter plate 4 is fixed to the transmission rotary support ring 2 by the first fastening bolt. A second fastening bolt is provided at the edge of the output plate 7, and a plurality of second fastening bolts are provided around the output plate 7, and the output plate 7 is fixed to the follower rotary support outer ring 6 by the second fastening bolt. A third fastening bolt is provided on the follower rotary support inner ring 5, and a plurality of third fastening bolts are provided around the follower rotary support inner ring 5, and the follower rotary support inner ring 5 is fixed to the adapter plate 4 by the third fastening bolt. The fixing of the plurality of fastening bolts around a circle is more secure and not easy to loosen.

[0026] 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 swing, 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 engage the 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 thereto to rotate, so as to achieve the purpose that the electric winch device needs to swing with the fan impeller under power-free conditions. The double rotary mechanism controls the separation and fixation of the rotary mechanism through the follower pin 9, which does not affect the normal use of the device, and solves the problem that the fan cannot rotate due to power-off self-locking of the electric winch device, improves the convenience of use, and reduces 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, and 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 adjusting rod 13 with a connecting pin, and the lower part of the adjusting rod 13 is connected to the connecting seat 14, which is fixed to the frame 15 of the fan with bolts, so as to support and pull the main frame 1 without rotation, and is more stable.

[0027] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An electric turning device capable of rotating with a fan impeller, comprising a main frame (1) and a supporting assembly, characterized in that: The support assembly is arranged on one side of the main frame (1), and an inner groove is arranged inside the main frame (1), a transmission rotary support ring (2) is rotatably arranged inside the inner groove, and meshing teeth are arranged on the outer side of the transmission rotary support ring (2), gears (3) are arranged on the main frame (1) at the four corners of the inner groove, and the gears (3) are matched with the meshing teeth, a transfer plate (4) is arranged at the front end of the transmission rotary support ring (2), and a follower rotary support inner ring (5) is arranged at the middle position of the front end of the transfer plate (4), and a follower rotary support outer ring (6) is rotatably arranged on the outer side of the follower rotary support inner ring (5); 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 interconnecting connecting holes (8), and there are a plurality 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).

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); the connecting arm (11) is connected to the upper side of one side of the main frame (1) via a connecting pin; 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 to the brake disc (10), the brake disc (10) is connected to a gear box (17), and the output end of the gear box (17) is connected to an impeller (19) via a main shaft (18).

5. The electric turning device capable of rotating with the fan impeller according to claim 1, characterized in that: A driving reduction motor (20) is provided at each of the four corners of the rear end of the main frame (1), and the output ends of the four groups of driving reduction motors (20) are respectively connected to the four groups of 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: Second fastening bolts are provided at the edge of the output disk (7), and a plurality of second fastening bolts are provided around the output disk (7). The output disk (7) is fixed to the follower slewing 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 slewing support inner ring (5) is provided with a third fastening bolt, and a plurality of third fastening bolts are provided around the follower slewing support inner ring (5), and the follower slewing support inner ring (5) is fixed to the adapter plate (4) via the third fastening bolts.

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