Center of gravity correction device and method for overall installation of top-mounted wind turbine generator set

Abstract

The present invention discloses a center of gravity correction device for the overall installation of a top-mounted wind turbine generator set, relates to the technical field of wind turbine generator sets, and includes a correction mechanism, wherein the auxiliary mechanism includes eight auxiliary blocks, four rectangular holes, four stabilizing seats and two high-pressure fans, the bottom of each of the auxiliary blocks is bonded and connected with a rubber scraper, the interior of each of the U-shaped blocks with holes is threadedly connected with a nozzle, and the air inlet end of each of the high-pressure fans is installed with a filter. The present invention, by arranging the auxiliary mechanism, can allow the telescopic end of the servo electric cylinder to move back to the interior of the servo electric cylinder for cleaning, that is, to prevent dust adhered to the surface of the telescopic end of the servo electric cylinder from entering the interior of the servo electric cylinder, thereby reducing the heat dissipation obstruction of the servo electric cylinder and improving the sealing performance of the servo electric cylinder, thereby improving the use effect of the center of gravity correction device and also improving the service life of the center of gravity correction device.

Description

Technical Field

[0001] The invention relates to the technical field of wind turbine generator sets, and in particular to a gravity center correction device and method for overall installation of a top-mounted wind turbine generator set. Background Art

[0002] A top-mounted wind turbine refers to a type of wind turbine whose main power generation and power conversion components (such as generators, gearboxes, etc.) are located above the tower (usually inside the nacelle). Its main purpose is to convert wind energy into electrical energy, and it is mainly used in the power supply field and other industrial fields.

[0003] At present, the installation of top-mounted wind turbine generator sets mainly includes overall installation and split installation construction processes. The overall installation construction is to use a crane and a lifting system to lift the generator set, and then install it on the foundation transition section tower, and use high-strength bolts to connect and fix it. During the overall installation construction of the top-mounted wind turbine generator set, it is often the case that the center of gravity of some top-mounted wind turbine generator sets is located outside the tower, deviating from the center of the tower, which causes the top-mounted wind turbine generator set to be in a forward tilted state after lifting, and then causes a certain height difference between the front and rear of the bottom flange of the top-mounted wind turbine generator set, deviating from the horizontal plane, that is, it causes great difficulty in the process of docking the bottom flange of the top-mounted wind turbine generator set with the flange of the foundation transition section tower, and it takes many attempts to install it in place, which greatly reduces the construction efficiency and increases the risk of overall installation of the top-mounted wind turbine generator set. Therefore, in order to improve the construction efficiency, the staff generally use the center of gravity correction device to assist the overall installation of the top-mounted wind turbine generator set.

[0004] In the existing technology, the existing center of gravity correction device for the overall installation of the top-mounted wind turbine generator set can assist the staff to quickly and accurately connect the bottom flange of the top-mounted wind turbine generator set with the tower flange of the foundation transition section during actual use, thereby improving the construction efficiency and reducing the risk of the overall installation of the top-mounted wind turbine generator set. However, it does not have a cleaning function, that is, the actuators of the existing center of gravity correction device mostly use a servo electric cylinder as a power source. When the servo electric cylinder on the actuator of the center of gravity correction device is used, its telescopic end will be exposed to the environment. At this time, if there is a lot of dust in the air, the telescopic end surface of the servo electric cylinder will adhere to dust. When the telescopic end of the servo electric cylinder needs to be reset and the center of gravity correction device cannot clean the telescopic end surface of the servo electric cylinder, the dust adhered to the telescopic end surface of the servo electric cylinder may enter the interior of the servo electric cylinder, that is, the dust will cause the heat dissipation of the servo electric cylinder to be blocked and the sealing performance of the servo electric cylinder to be reduced, which not only reduces the use effect of the center of gravity correction device, but also reduces the service life of the center of gravity correction device.

[0005] Therefore, we propose a gravity center correction device and method for the overall installation of a top-mounted wind turbine generator set in order to solve the above-mentioned problems. Summary of the invention

[0006] The object of the present invention is to provide a center of gravity correction device and method for the overall installation of an upper-mounted wind turbine generator set, so as to solve the problem that the existing center of gravity correction device for the overall installation of an upper-mounted wind turbine generator set mentioned in the above background technology does not have a cleaning function, that is, the actuator of the existing center of gravity correction device mostly uses a servo electric cylinder as a power source. When the servo electric cylinder on the actuator of the center of gravity correction device is used, its telescopic end will be exposed to the environment. At this time, if the dust in the air is large, the telescopic end surface of the servo electric cylinder will adhere to the dust. When the telescopic end of the servo electric cylinder needs to be reset and the center of gravity correction device cannot clean the telescopic end surface of the servo electric cylinder, the dust adhered to the telescopic end surface of the servo electric cylinder will enter the interior of the servo electric cylinder, that is, the dust will cause the heat dissipation of the servo electric cylinder to be blocked and the sealing performance of the servo electric cylinder to be reduced, which will not only reduce the use effect of the center of gravity correction device, but also reduce the service life of the center of gravity correction device.

[0007] To achieve the above object, the present invention provides the following technical solution: a gravity center correction device for overall installation of a top-mounted wind turbine generator set, comprising a correction mechanism, on which an auxiliary mechanism is provided;

[0008] The auxiliary mechanism includes eight auxiliary blocks, four rectangular holes, four stable seats and two high-pressure fans, each of the auxiliary blocks is bonded with a rubber scraper at the bottom, the eight auxiliary blocks are divided into four groups, two symmetrical partitions are fixed to the top of one of the auxiliary blocks in each group, the eight partitions are divided into four groups, the opposite sides of each group of partitions are bonded with rubber strips, a U-shaped block with holes is fixed to the top of each auxiliary block, the interior of each U-shaped block with holes is threadedly connected with a nozzle, the eight nozzles are divided into four groups, a first multi-way tube is installed between the air inlet ends of each group of nozzles, a hose is installed at the air inlet end of each of the first multi-way tubes, a second multi-way tube is installed at the air outlet end of each of the high-pressure fans, and a filter is installed at the air inlet end of each of the high-pressure fans.

[0009] Preferably, one opposite end of each group of the auxiliary blocks is movably sleeved inside each rectangular hole, and one opposite side of each group of the auxiliary blocks is in contact with each other. The eight rubber scrapers are divided into four groups, and one opposite side of each group of the rubber scrapers is in contact with each other.

[0010] Preferably, the opposite sides of each group of partitions are in contact with the two sides of the inner wall of each rectangular hole, the top of each group of partitions is in contact with the top of the inner wall of each rectangular hole, the bottom of each group of partitions is in contact with the top of the inner wall of each rectangular hole, and the bottom of each rubber strip is on the same horizontal plane with the bottom of each partition.

[0011] Preferably, the top of each rubber strip is on the same horizontal plane as the top of each partition, the air inlet end of each of the first multi-way tubes is fixedly sleeved inside each stable seat, and the four hoses are divided into two groups, and the air inlet end of each group of hoses is respectively connected to the two air outlet ends of each second multi-way tube.

[0012] Preferably, the correction mechanism includes two support frames, a base plate is fixed to the bottom of each of the support frames, two symmetrical I-shaped steels are fixed between the tops of the two support frames, a placing table is fixed between the opposite sides of the two I-shaped steels, the four rectangular holes are divided into two groups, each group of rectangular holes is respectively opened on the inner wall of each I-shaped steel, wherein two groups of auxiliary blocks are installed on one of the I-shaped steels, and two groups of auxiliary blocks are installed on the other I-shaped steel.

[0013] Preferably, the four stabilizing seats are divided into two groups, each group of stabilizing seats is respectively installed on the top of each I-shaped steel, the two high-pressure fans are installed on the bottom of the inner wall of the placement table, each of the I-shaped steel is provided with I-shaped blocks on both sides, each of the I-shaped blocks is installed with a fixing frame, a U-shaped ring is fixed on the top of each of the fixing frames, a steel wire rope is provided on the U-shaped ring, a hook is provided at one end of each of the steel wire ropes, a servo electric cylinder is installed on the top of each of the I-shaped steels, and the telescopic ends of the two servo electric cylinders are movable through the top of one of the I-shaped steels.

[0014] Preferably, the telescopic ends of the other two servo electric cylinders are movably inserted through the top of another I-shaped steel, the telescopic end of each servo electric cylinder is movably sleeved between the inside of each group of rubber scrapers, and the telescopic end of each servo electric cylinder is movably sleeved between the grooves at the opposite ends of each group of auxiliary blocks. The eight rubber strips are divided into four groups, and the opposite sides of each group of rubber strips are respectively in contact with the telescopic end surface of each servo electric cylinder, and two hollow blocks are fixed on the top of each I-shaped block.

[0015] Preferably, two symmetrical rectangular columns are fixed on the top of each of the I-shaped steels, and each of the rectangular columns is movably sleeved inside each hollow block. A grooved block is fixed at the bottom of each of the I-shaped blocks, and a connecting block is fixed at the bottom of the telescopic end of each of the servo electric cylinders. Each of the connecting blocks is installed inside each of the grooved blocks. A controller is placed on the top of one of the I-shaped steels, and a limiting rod is movably penetrated at the top of each of the I-shaped steels.

[0016] Preferably, the bottom of each limit rod is respectively fixed to the top of each grooved block, a cylindrical block is installed on the top of each limit rod, an inclination sensor is installed at the middle position of the bottom of the placement table, a plurality of first reinforcement plates are fixed inside the placement table, a plurality of second reinforcement plates are fixed on each of the I-shaped steels, the two high-pressure fans are electrically connected to the controller, and the four servo electric cylinders and the inclination sensors are electrically connected to the controller.

[0017] The method for the center of gravity correction device for the overall installation of a top-mounted wind turbine generator set comprises the following steps:

[0018] S1. When the top-mounted wind turbine generator set is assembled and fixed on the deviation correction device, the crane, the hoisting device and the deviation correction device are used to slowly lift the top-mounted wind turbine generator set fixed on the deviation correction device, and then the controller and the inclination sensor are used to detect whether the center of gravity of the lifted top-mounted wind turbine generator set is offset;

[0019] S2. When the angle data received by the controller is higher than the angle threshold value set in advance by the controller, the corresponding grooved block is moved by using the cooperation of the controller, servo electric cylinder, I-shaped steel, connecting block, hollow block, rectangular column, limit rod and cylindrical block, and then the other end of the corresponding wire rope is moved by using the cooperation of the movable grooved block, I-shaped block, fixing frame and U-shaped ring to adjust the center of gravity of the suspended top-mounted wind turbine generator set until the center of gravity of the suspended top-mounted wind turbine generator set is in a horizontal position;

[0020] S3. When the overall installation of the top-mounted wind turbine generator set is completed, the air in the environment is filtered and then inhaled by using the cooperation of the controller, the high-pressure fan and the filter sheet, and then the clean air output by the high-pressure fan is transported to the inside of the nozzle by using the cooperation of the second multi-way pipe, the hose and the first multi-way pipe;

[0021] S4. Then, the nozzle, partition, rectangular hole and rubber strip are used together to clean the lubricating oil with dust on the telescopic end surface of the servo electric cylinder by using the air sprayed from the nozzle. Then, the controller is used to reset the telescopic end of the servo electric cylinder that was previously paused. Then, the auxiliary block and rubber scraper are used together to clean the lubricating oil with dust on the telescopic end surface of the servo electric cylinder that is being reset.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention can allow the telescopic end of the servo electric cylinder to be moved back to the inside of the servo electric cylinder for cleaning by setting an auxiliary mechanism, that is, to prevent dust adhered to the surface of the telescopic end of the servo electric cylinder from entering the inside of the servo electric cylinder, thereby reducing the heat dissipation of the servo electric cylinder and improving the sealing performance of the servo electric cylinder, thereby improving the use effect of the center of gravity correction device and the service life of the center of gravity correction device. When the overall installation of the top-mounted wind turbine generator set is completed, the controller, high-pressure fan and filter are used together to filter the air in the environment before inhaling it;

[0024] 2. The present invention then uses the cooperation of the second multi-way pipe, the hose and the first multi-way pipe to deliver the clean air output by the high-pressure blower to the inside of the nozzle, and then uses the cooperation of the nozzle, the partition, the rectangular hole and the rubber strip to clean the lubricating oil with dust adhering to the telescopic end surface of the servo electric cylinder with the air sprayed from the nozzle, and then uses the cooperation of the controller to reset the telescopic end of the servo electric cylinder that was previously paused, and then uses the cooperation of the auxiliary block and the rubber scraper to clean the lubricating oil with dust adhering to the telescopic end surface of the servo electric cylinder that is reset, that is, uses a double cleaning mechanism to ensure that the telescopic end surface of the servo electric cylinder that moves back is free of dust;

[0025] 3. The present invention can maintain the center of gravity of the suspended top-mounted wind turbine generator set in a horizontal position by setting a correction mechanism. When the top-mounted wind turbine generator set is assembled and fixed on the correction device, the crane, the lifting device and the correction device are first used in cooperation to slowly lift the top-mounted wind turbine generator set fixed on the correction device. Then, the controller and the inclination sensor are used in cooperation to detect whether the center of gravity of the suspended top-mounted wind turbine generator set is offset.

[0026] 4. In the present invention, when the angle data received by the controller is higher than the angle threshold value set in advance by the controller, the controller will utilize the cooperation of the servo electric cylinder, I-shaped steel, connecting block, hollow block, rectangular column, limit rod and cylindrical block to move the corresponding grooved block, and then the moving grooved block will utilize the cooperation of the I-shaped block, fixed frame and U-shaped ring to move the other end of the corresponding steel wire rope, that is, the center of gravity of the suspended top-mounted wind turbine generator set is adjusted by increasing the force on the steel wire rope until the center of gravity of the suspended top-mounted wind turbine generator set is in a horizontal position. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A three-dimensional diagram of a gravity center correction device for overall installation of a top-mounted wind turbine generator set according to the present invention;

[0028] Figure 2 A bottom-up perspective view of a gravity center correction device for integral installation of a top-mounted wind turbine generator set according to the present invention;

[0029] Figure 3 It is a schematic diagram of the structure of the center of gravity correction device used for the overall installation of a top-mounted wind turbine generator set from a side view according to the present invention;

[0030] Figure 4 It is a partial three-dimensional diagram of the correction mechanism of the gravity center correction device for integral installation of a top-mounted wind turbine generator set according to the present invention;

[0031] Figure 5 It is a partially cutaway stereoscopic view of a gravity center correction device for integral installation of a top-mounted wind turbine generator set according to the present invention;

[0032] Figure 6 It is a partial three-dimensional diagram of the auxiliary mechanism of the gravity center correction device for integral installation of a top-mounted wind turbine generator set according to the present invention;

[0033] Figure 7 It is a structural schematic diagram of another angle of the center of gravity correction device used for the overall installation of a top-mounted wind turbine generator set according to the present invention;

[0034] Figure 8 The invention is a gravity center correction device for the overall installation of a top-mounted wind turbine generator set. Figure 1 The enlarged stereogram at A in the middle;

[0035] Fig. 9 The invention is a gravity center correction device for the overall installation of a top-mounted wind turbine generator set. Figure 3 Enlarged stereogram of point B in the middle.

[0036] In the figure:

[0037] 1. Correction mechanism; 101. Support frame; 102. Bottom plate; 103. I-shaped steel; 104. Placement table; 105. I-shaped block; 106. Fixed frame; 107. U-shaped ring; 108. Wire rope; 109. Hook; 110. Servo electric cylinder; 111. Hollow block; 112. Rectangular column; 113. Block with groove; 114. Connecting block; 115. Controller; 116. Limit rod; 117. Cylindrical block; 1 18. Inclination sensor; 119. First reinforcing plate; 120. Second reinforcing plate; 2. Auxiliary mechanism; 201. Auxiliary block; 202. Rectangular hole; 203. Rubber scraper; 204. Partition plate; 205. Rubber strip; 206. U-shaped block with hole; 207. Nozzle; 208. Stable seat; 209. First multi-way pipe; 210. Hose; 211. High-pressure fan; 212. Second multi-way pipe; 213. Filter. DETAILED DESCRIPTION

[0038] 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 implementation regulations 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 creative work are within the scope of protection of the present invention.

[0039] Example 1: Please refer to Figure 1-Figure 9 As shown, the present invention provides a technical solution: a gravity center correction device for overall installation of a top-mounted wind turbine generator set, comprising a correction mechanism 1, on which an auxiliary mechanism 2 is arranged;

[0040] The auxiliary mechanism 2 includes eight auxiliary blocks 201, four rectangular holes 202, four stable seats 208 and two high-pressure fans 211. The bottom of each auxiliary block 201 is bonded with a rubber scraper 203. The eight auxiliary blocks 201 are divided into four groups. Two symmetrical partitions 204 are fixed to the top of one auxiliary block 201 in each group. The eight partitions 204 are divided into four groups. The opposite sides of each group of partitions 204 are bonded with rubber strips 205. A U-shaped block 206 with a hole is fixed to the top of each auxiliary block 201. The interior of each U-shaped block 206 with a hole is threadedly connected with a nozzle 207. The eight nozzles 207 are divided into four groups. The air inlet ends of each group of nozzles 207 are connected. A first multi-channel tube 209 is installed, and a hose 210 is installed at the air inlet end of each first multi-channel tube 209. A second multi-channel tube 212 is installed at the air outlet end of each high-pressure fan 211. A filter 213 is installed at the air inlet end of each high-pressure fan 211. The opposite end of each group of auxiliary blocks 201 is movably sleeved inside each rectangular hole 202, and the opposite side of each group of auxiliary blocks 201 is in contact with each other. The eight rubber scrapers 203 are divided into four groups, and the opposite side of each group of rubber scrapers 203 is in contact with each other. The opposite side of each group of partitions 204 is in contact with the two sides of the inner wall of each rectangular hole 202, and the top of each group of partitions 204 is in contact with the top of the inner wall of each rectangular hole 202. The bottom of each group of partitions 204 is in contact with the top of the inner wall of each rectangular hole 202, the bottom of each rubber strip 205 is on the same horizontal plane with the bottom of each partition 204, and the top of each rubber strip 205 is on the same horizontal plane with the top of each partition 204. The air inlet end of each first multi-way tube 209 is fixedly sleeved inside each stable seat 208. The four hoses 210 are divided into two groups. The air inlet end of each group of hoses 210 is connected to the two air outlet ends of each second multi-way tube 212. The deviation correction mechanism 1 includes two support frames 101. The bottom of each support frame 101 is fixed with a bottom plate 102. The tops of the two support frames 101 are fixedly sleeved inside each stable seat 208. Two symmetrical I-shaped steels 103 are fixed in the middle, four stabilizing seats 208 are divided into two groups, each group of stabilizing seats 208 is respectively installed on the top of each I-shaped steel 103, two high-pressure fans 211 are installed at the bottom of the inner wall of the placement table 104, the telescopic end of each servo electric cylinder 110 is movably sleeved between the inside of each group of rubber scrapers 203, and the telescopic end of each servo electric cylinder 110 is movably sleeved between the grooves at the opposite ends of each group of auxiliary blocks 201. The eight rubber strips 205 are divided into four groups, and the opposite side of each group of rubber strips 205 is respectively in contact with the telescopic end surface of each servo electric cylinder 110, and the two high-pressure fans 211 are electrically connected to the controller 115.

[0041] In this embodiment, when two of the servo electric cylinders 110 (such as Figure 1As shown, when the two servo electric cylinders 110 on the left or the two servo electric cylinders 110 on the right are in use, the telescopic ends of the servo electric cylinders 110 will be moved out from the inside of the servo electric cylinders 110 and exposed to the environment. If the dust in the environment is large, the telescopic end surfaces of the two servo electric cylinders 110 exposed to the environment will be adhered to dust. When the upper-mounted wind turbine generator set is installed and operated as a whole, the corresponding high-pressure fan 211 is first started by the controller 115. The started high-pressure fan 211 will, with the cooperation of the filter sheet 213 connected thereto, inhale the filtered air in the environment, and then transport it to the inside of the second multi-channel tube 212 connected thereto, and then transport it to the inside of the corresponding two hoses 210 respectively, and then transport it to the inside of the corresponding two first multi-channel tubes 209, and then transport it to the inside of the corresponding nozzle 207, and then through Through the cooperation of the corresponding partition 204, the rectangular hole 202 and the rubber strip 205, the gas sprayed by the nozzle 207 cleans the lubricating oil with dust on the surface of the telescopic end of the servo electric cylinder 110, and finally the controller 115 is used to control the telescopic ends of the two servo electric cylinders 110 that were previously paused to start resetting. When the telescopic ends of the two servo electric cylinders 110 start to reset, the telescopic ends of each servo electric cylinder 110 that starts to reset will be scraped off the lubricating oil with dust adhering to its surface with the cooperation of the corresponding group of auxiliary blocks 201 and the corresponding group of rubber scrapers 203. That is, the double cleaning mechanism is used to ensure that the surface of the telescopic end moved back to the servo electric cylinder 110 is free of dust, thereby reducing the heat dissipation obstruction of the servo electric cylinder 110 and improving the sealing performance of the servo electric cylinder 110, which not only improves the use effect of the center of gravity correction device, but also improves the service life of the center of gravity correction device.

[0042] Embodiment 2: According to Figure 1-Figure 5 and Figure 7-Figure 9As shown, the deviation correction mechanism 1 includes two support frames 101, each support frame 101 is fixed with a bottom plate 102 at the bottom, two symmetrical I-shaped steels 103 are fixed between the tops of the two support frames 101, a placement table 104 is fixed between the opposite sides of the two I-shaped steels 103, and each I-shaped steel 103 is provided with an I-shaped block 105 on both sides, each I-shaped block 105 is installed with a fixing frame 106, and each fixing frame 106 is fixed with a U-shaped ring 107 on the top, and the U-shaped ring 107 are provided with steel wire ropes 108, one end of each steel wire rope 108 is provided with a hook 109, and a servo electric cylinder 110 is installed on the top of each I-shaped steel 103, wherein the telescopic ends of two servo electric cylinders 110 are movable through the top of one of the I-shaped steels 103, and the telescopic ends of the other two servo electric cylinders 110 are movable through the top of another I-shaped steel 103, and two hollow blocks 111 are fixed on the top of each I-shaped block 105, and each I-shaped steel 103 is provided with a servo electric cylinder 110. Two symmetrical rectangular columns 112 are fixed on the top, and each rectangular column 112 is movably sleeved inside each hollow block 111, and a grooved block 113 is fixed to the bottom of each I-shaped block 105. A connecting block 114 is fixed to the bottom of the telescopic end of each servo electric cylinder 110, and each connecting block 114 is installed inside each grooved block 113. A controller 115 is placed on the top of one I-shaped steel 103, and a limiting rod 116 is movably passed through the top of each I-shaped steel 103. The bottom of each limiting rod 116 is fixed to the top of each grooved block 113, and a cylindrical block 117 is installed on the top of each limiting rod 116. An inclination sensor 118 is installed in the middle position of the bottom of the placing platform 104, and a plurality of first reinforcing plates 119 are fixed inside the placing platform 104. A plurality of second reinforcing plates 120 are fixed on each I-shaped steel 103. The four servo electric cylinders 110 and the inclination sensors 118 are electrically connected to the controller 115.

[0043] In this embodiment, when the top-mounted wind turbine generator set is assembled and fixed on the deviation correction device, the crane is first used to move the hoisting device (composed of a balance beam, an upper hanger, a steel wire rope and other structures) connected thereto to the top of the deviation correction device, and then the four hooks 109 are used to connect the hoisting device to the deviation correction device, and then the crane, the deviation correction device and the hoisting device are used to slowly lift the top-mounted wind turbine generator set placed on the deviation correction device. When the top-mounted wind turbine generator set is lifted, the controller 115 is used to start the inclination sensor 118. When the inclination sensor 118 is started, the inclination sensor 118 can measure the inclination angle of the suspended top-mounted wind turbine generator set, and directly transmit the measured angle data to the controller 115 in the form of an electrical signal. When the controller 115 receives the angle data, the controller 115 directly compares the received angle data with the angle threshold value set in advance by the controller 115. When the angle data received by the controller 115 is higher than the angle threshold value set in advance by the controller 115, it means that the suspended top-mounted wind turbine generator set has a rightward tilt in the center of gravity (such as Figure 1 As shown, the force on the two steel wire ropes 108 on the left side is reduced, and the force on the two steel wire ropes 108 on the right side is increased). At this time, the controller 115 will simultaneously start the corresponding two servo electric cylinders 110 (such as Figure 1 As shown, there are two servo electric cylinders 110 on the right side. Then, each servo electric cylinder 110 is started, and the corresponding I-shaped steel 103 cooperates to drive the connecting block 114 connected thereto to move vertically downward. Each moving connecting block 114 also drives the grooved block 113 to move vertically downward with the cooperation of the corresponding hollow block 111, the corresponding rectangular column 112, the corresponding I-shaped steel 103, the corresponding limiting rod 116 and the corresponding cylindrical block 117. At the same time, each moving grooved block 113 also cooperates with the I-shaped block 105, the corresponding fixing frame 106 and the corresponding U-shaped ring 107 connected thereto, so that the other ends of the corresponding two steel wire ropes 108 move downward, that is, the corresponding two steel wire ropes 108 (such as Figure 1 As shown, the force on the two steel wire ropes 108 on the right side is gradually increased to make the other two steel wire ropes 108 (such as Figure 1As shown in the figure, the force on the two left wire ropes 108 is relatively reduced, so that the center of gravity of the suspended top-mounted wind turbine generator set gradually returns to the horizontal position. When the angle data received by the controller 115 is the same as the angle threshold value set in advance by the controller 115, the controller 115 will simultaneously suspend the two servo electric cylinders 110 and the inclination sensor 118, and then use the cooperation of the crane, the lifting device and the correction device to quickly connect the bottom flange of the top-mounted wind turbine generator set in a horizontal state with the tower flange of the foundation transition section, which not only improves the construction efficiency, but also improves the construction efficiency. Similarly, when the angle data received by the controller 115 is lower than the angle threshold value set in advance by the controller 115, it means that the center of gravity of the suspended top-mounted wind turbine generator set is tilted to the left. At this time, the controller 115 will also start the corresponding two servo electric cylinders 110 to adjust the force of the corresponding two steel wire ropes 108. When the center of gravity of the suspended top-mounted wind turbine generator set is in a horizontal position, the controller 115 will directly suspend the corresponding two servo electric cylinders 110 and the inclination sensor 118.

[0044] The effect and working principle of the entire mechanism are as follows: when the top-mounted wind turbine generator needs to be installed as a whole, all components of the top-mounted wind turbine generator set are first assembled on a platform consisting of two base plates 102, two support frames 101, two I-shaped steels 103, multiple first reinforcing plates 119, multiple second reinforcing plates 120 and a placement table 104 until the top-mounted wind turbine generator set is assembled. Then, the top-mounted wind turbine generator set is fixed to the platform by using high-strength bolts and bolts. Then, the controller 115 is installed in the control room of the crane. Then, the controller 115 is connected to the power distribution box in the crane cab. Then, the controller 115 is turned on, and the angle threshold (greater than the angle threshold is right-leaning, otherwise left-leaning) and the use procedure are set. When everything is ready, the crane is first used to move the hoisting device connected thereto (consisting of a balance beam, an upper hanger, a steel wire rope and other structures) to the top. The correction device is directly above the correction device, and then the four hooks 109 are used to connect the lifting device and the correction device together. Then, the crane, the correction device and the lifting device are used to slowly lift the top-mounted wind turbine generator set placed on the correction device. When the top-mounted wind turbine generator set is lifted, the controller 115 is used to start the inclination sensor 118. When the inclination sensor 118 is started, the inclination sensor 118 can measure the inclination angle of the lifted top-mounted wind turbine generator set, and directly transmit the measured angle data to the controller 115 in the form of an electrical signal. When the controller 115 receives the angle data, the controller 115 will directly compare the received angle data with the angle threshold value set in advance by the controller 115. When the angle data received by the controller 115 is higher than the angle threshold value set in advance by the controller 115, it means that the lifted top-mounted wind turbine generator set has a rightward tilt of the center of gravity (such as Figure 1 As shown, the force on the two steel wire ropes 108 on the left side is reduced, and the force on the two steel wire ropes 108 on the right side is increased). At this time, the controller 115 will simultaneously start the corresponding two servo electric cylinders 110 (such as Figure 1 As shown, there are two servo electric cylinders 110 on the right side. Then, each servo electric cylinder 110 is started, and the corresponding I-shaped steel 103 cooperates to drive the connecting block 114 connected thereto to move vertically downward. Each moving connecting block 114 also drives the grooved block 113 to move vertically downward with the cooperation of the corresponding hollow block 111, the corresponding rectangular column 112, the corresponding I-shaped steel 103, the corresponding limiting rod 116 and the corresponding cylindrical block 117. At the same time, each moving grooved block 113 also cooperates with the I-shaped block 105, the corresponding fixing frame 106 and the corresponding U-shaped ring 107 connected thereto, so that the other ends of the corresponding two steel wire ropes 108 move downward, that is, the corresponding two steel wire ropes 108 (such as Figure 1As shown, the force on the two steel wire ropes 108 on the right side is gradually increased to make the other two steel wire ropes 108 (such as Figure 1 As shown in the figure, the force on the two left wire ropes 108 is relatively reduced, so that the center of gravity of the suspended top-mounted wind turbine generator set gradually returns to the horizontal position. When the angle data received by the controller 115 is the same as the angle threshold value set in advance by the controller 115, the controller 115 will simultaneously suspend the two servo electric cylinders 110 and the inclination sensor 118, and then use the cooperation of the crane, the lifting device and the correction device to quickly connect the bottom flange of the top-mounted wind turbine generator set in a horizontal state with the tower flange of the foundation transition section, which not only improves the construction efficiency, but also reduces The risk of overall installation of the upper-mounted wind turbine generator set is reduced. Similarly, when the angle data received by the controller 115 is lower than the angle threshold value set in advance by the controller 115, it means that the center of gravity of the upper-mounted wind turbine generator set being lifted is tilted to the left. At this time, the controller 115 will also start the corresponding two servo electric cylinders 110 to adjust the force of the corresponding two steel wire ropes 108. When the center of gravity of the lifted upper-mounted wind turbine generator set is in a horizontal position, the controller 115 will directly suspend the corresponding two servo electric cylinders 110 and the inclination sensor 118. When two of the servo electric cylinders 110 (such as Figure 1As shown, when the two servo electric cylinders 110 on the left or the two servo electric cylinders 110 on the right are in use, the telescopic ends of the servo electric cylinders 110 will be moved out from the inside of the servo electric cylinders 110 and exposed to the environment. If the dust in the environment is large, the telescopic end surfaces of the two servo electric cylinders 110 exposed to the environment will be adhered to dust. When the upper-mounted wind turbine generator set is installed and operated as a whole, the corresponding high-pressure fan 211 is first started by the controller 115. The started high-pressure fan 211 will, with the cooperation of the filter sheet 213 connected thereto, inhale the filtered air in the environment, and then transport it to the inside of the second multi-channel tube 212 connected thereto, and then transport it to the inside of the corresponding two hoses 210 respectively, and then transport it to the inside of the corresponding two first multi-channel tubes 209, and then transport it to the inside of the corresponding nozzle 207, and then through Through the cooperation of the corresponding partition 204, the rectangular hole 202 and the rubber strip 205, the gas sprayed by the nozzle 207 cleans the lubricating oil with dust on the surface of the telescopic end of the servo electric cylinder 110, and finally the controller 115 is used to control the telescopic ends of the two servo electric cylinders 110 that were previously paused to start resetting. When the telescopic ends of the two servo electric cylinders 110 start to reset, the telescopic ends of each servo electric cylinder 110 that starts to reset will be scraped off the lubricating oil with dust adhering to its surface with the cooperation of the corresponding group of auxiliary blocks 201 and the corresponding group of rubber scrapers 203. That is, the double cleaning mechanism is used to ensure that the surface of the telescopic end moved back to the servo electric cylinder 110 is free of dust, thereby reducing the heat dissipation obstruction of the servo electric cylinder 110 and improving the sealing performance of the servo electric cylinder 110, which not only improves the use effect of the center of gravity correction device, but also improves the service life of the center of gravity correction device.

[0045] Among them, the servo electric cylinder 110, the controller 115 (PLC controller), the inclination sensor 118, the nozzle 207 and the high-pressure fan 211 are all existing technologies, and their models can be selected according to actual conditions, and no further explanation is given here.

[0046] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A gravity center correction device for integral installation of a top-mounted wind turbine generator set, comprising a correction mechanism (1), characterized in that: The deviation-correcting mechanism (1) is provided with an auxiliary mechanism (2); The auxiliary mechanism (2) comprises eight auxiliary blocks (201), four rectangular holes (202), four stable seats (208) and two high-pressure fans (211); the bottom of each auxiliary block (201) is bonded and connected to a rubber scraper (203); the eight auxiliary blocks (201) are divided into four groups; the top of one auxiliary block (201) in each group is fixed with two symmetrical partitions (204); the eight partitions (204) are divided into four groups; the opposite sides of the partitions (204) in each group are bonded and connected to a rubber strip (205); A U-shaped block (206) with a hole is fixed on the top of each block (201), a nozzle (207) is threadedly connected inside each of the U-shaped blocks (206), eight nozzles (207) are divided into four groups, a first multi-way pipe (209) is installed between the air inlet ends of each group of nozzles (207), a hose (210) is installed at the air inlet end of each of the first multi-way pipes (209), a second multi-way pipe (212) is installed at the air outlet end of each of the high-pressure fans (211), and a filter (213) is installed at the air inlet end of each of the high-pressure fans (211); The top of each rubber strip (205) is respectively located at the same horizontal plane as the top of each partition (204); the air inlet end of each first multi-way pipe (209) is respectively fixedly sleeved inside each stable seat (208); the four hoses (210) are divided into two groups, and the air inlet end of each group of hoses (210) is respectively connected to the two air outlet ends of each second multi-way pipe (212); The opposite ends of each group of auxiliary blocks (201) are movably sleeved inside each rectangular hole (202), and the opposite sides of each group of auxiliary blocks (201) are in contact with each other. The eight rubber scrapers (203) are divided into four groups, and the opposite sides of each group of rubber scrapers (203) are in contact with each other. The four stabilizing seats (208) are divided into two groups, each group of stabilizing seats (208) is respectively installed on the top of each I-shaped steel (103), the two high-pressure fans (211) are installed on the bottom of the inner wall of the placement platform (104), each I-shaped steel (103) is provided with an I-shaped block (105) on both sides, each I-shaped block (105) is installed with a fixing frame (106), the top of each fixing frame (106) is fixed with a U-shaped ring (107), the U-shaped ring (107) is provided with a steel wire rope (108), and one end of each steel wire rope (108) is provided with a hook (109), and the top of each I-shaped steel (103) is installed with a servo electric cylinder (110), wherein the telescopic ends of the two servo electric cylinders (110) are movable through the top of one of the I-shaped steels (103).

2. The gravity center correction device for overall installation of a top-mounted wind turbine generator set according to claim 1 is characterized in that: The opposite sides of each group of partitions (204) are in contact with the two sides of the inner wall of each rectangular hole (202), the top of each group of partitions (204) is in contact with the top of the inner wall of each rectangular hole (202), the bottom of each group of partitions (204) is in contact with the top of the inner wall of each rectangular hole (202), and the bottom of each rubber strip (205) is on the same horizontal plane as the bottom of each partition (204).

3. The gravity center correction device for overall installation of a top-mounted wind turbine generator set according to claim 2 is characterized in that: The deviation correction mechanism (1) comprises two support frames (101), a bottom plate (102) is fixed at the bottom of each support frame (101), two symmetrical I-shaped steels (103) are fixed between the tops of the two support frames (101), a placement table (104) is fixed between opposite sides of the two I-shaped steels (103), the four rectangular holes (202) are divided into two groups, each group of rectangular holes (202) is respectively opened on the inner wall of each I-shaped steel (103), wherein the two groups of auxiliary blocks (201) are both installed on one of the I-shaped steels (103), and the two groups of auxiliary blocks (201) are both installed on the other I-shaped steel (103).

4. The gravity center correction device for overall installation of a top-mounted wind turbine generator set according to claim 3 is characterized in that: The telescopic ends of the other two servo electric cylinders (110) are movably inserted through the top of another I-shaped steel (103); the telescopic ends of each servo electric cylinder (110) are movably sleeved between the inside of each group of rubber scrapers (203); the telescopic ends of each servo electric cylinder (110) are movably sleeved between the grooves at the opposite ends of each group of auxiliary blocks (201); the eight rubber strips (205) are divided into four groups; the opposite sides of each group of rubber strips (205) are in contact with the telescopic end surface of each servo electric cylinder (110); and two hollow blocks (111) are fixed on the top of each I-shaped block (105).

5. The gravity center correction device for overall installation of a top-mounted wind turbine generator set according to claim 4 is characterized in that: Two symmetrical rectangular columns (112) are fixed on the top of each I-shaped steel (103), and each rectangular column (112) is movably sleeved inside each hollow block (111). A grooved block (113) is fixed on the bottom of each I-shaped block (105). A connecting block (114) is fixed on the bottom of the telescopic end of each servo electric cylinder (110), and each connecting block (114) is installed inside each grooved block (113). A controller (115) is placed on the top of one of the I-shaped steels (103), and a limit rod (116) is movably penetrated through the top of each I-shaped steel (103).

6. The gravity center correction device for overall installation of a top-mounted wind turbine generator set according to claim 5, characterized in that: The bottom of each of the limit rods (116) is respectively fixed to the top of each of the grooved blocks (113); a cylindrical block (117) is installed on the top of each of the limit rods (116); an inclination sensor (118) is installed at the middle position of the bottom of the placement platform (104); a plurality of first reinforcing plates (119) are fixed inside the placement platform (104); a plurality of second reinforcing plates (120) are fixed on each of the I-shaped steels (103); the two high-pressure fans (211) are electrically connected to the controller (115); and the four servo electric cylinders (110) and the inclination sensors (118) are electrically connected to the controller (115).

7. A method for using a gravity center correction device for overall installation of a top-mounted wind turbine generator set, characterized in that: The gravity center correction device for the overall installation of a top-mounted wind turbine generator set according to claim 6 is used, comprising the following steps: S1. When the top-mounted wind turbine generator set is assembled and fixed on the deviation correction device, the crane, the lifting device and the deviation correction device are used to slowly lift the top-mounted wind turbine generator set fixed on the deviation correction device, and then the controller (115) and the inclination sensor (118) are used to detect whether the center of gravity of the lifted top-mounted wind turbine generator set is offset; S2. When the angle data received by the controller (115) is higher than the angle threshold value set in advance by the controller (115), the corresponding grooved block (113) is moved by using the cooperation of the controller (115), the servo electric cylinder (110), the I-shaped steel (103), the connecting block (114), the hollow block (111), the rectangular column (112), the limit rod (116) and the cylindrical block (117). Then, the other end of the corresponding steel wire rope (108) is moved by using the cooperation of the movable grooved block (113), the I-shaped block (105), the fixing frame (106) and the U-shaped ring (107) to adjust the center of gravity of the suspended top-mounted wind turbine generator set until the center of gravity of the suspended top-mounted wind turbine generator set is in a horizontal position. S3, when the overall installation of the top-mounted wind turbine generator set is completed, the controller (115), the high-pressure fan (211) and the filter (213) are used to filter the air in the environment and then inhale it, and then the second multi-way pipe (212), the hose (210) and the first multi-way pipe (209) are used to transport the clean air output by the high-pressure fan (211) to the inside of the nozzle (207); S4, then the nozzle (207), the partition (204), the rectangular hole (202) and the rubber strip (205) are used in cooperation, and the air sprayed by the nozzle (207) is used to clean the lubricating oil with dust adhering to the telescopic end surface of the servo electric cylinder (110), and then the controller (115) is used to make the telescopic end of the servo electric cylinder (110) that was previously paused start to reset, and then the auxiliary block (201) and the rubber scraper (203) are used in cooperation to clean the lubricating oil with dust adhering to the telescopic end surface of the servo electric cylinder (110) that is reset.

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