Strong-wind-resistant flange automatic tightening device of wind power generation tower

Abstract

The invention relates to the technical field of wind power generation equipment, in particular to a wind power generation tower strong-wind-resistant flange automatic tightening device which comprises a flange assembly, a rope, a fixing assembly and a tightening assembly. The flange assembly comprises a first flange plate, a second flange plate and a gasket. Three first connecting holes which are uniformly distributed in the circumferential direction are formed in one side, far away from the tower body, of the gasket; one rope is arranged in each first connecting hole in a penetrating mode, and the ropes are fixedly connected with the gaskets through the fixing assemblies; the end, away from the gasket, of the rope is arranged in the tightening assembly. The tightening assembly is used for controlling the rope to be in a tightened or loosened state. According to the wind power generation tower, the tower body can be supported with different strengths according to different wind directions and wind speeds, and the technical effect of improving the stability and safety of the wind power generation tower under the strong wind condition is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of wind power generation equipment, and in particular to an automatic tightening device for a strong wind resistant flange of a wind power generation tower. Background Art

[0002] As a representative of clean energy, wind power generation has been widely used around the world. As a key structure that supports wind blades and converts wind energy into electrical energy, the safety and stability of wind power towers are of vital importance. With the continuous advancement of technology, a variety of patented technologies have emerged to improve the wind resistance of towers. However, these technologies face problems such as complex structure, high manufacturing cost and unsatisfactory safety factor in actual application, which restricts the further development of wind power generation.

[0003] At present, the reinforcement technologies for wind power towers mainly include increasing the wall thickness, using high-strength materials, and adding external support structures. Although these solutions have improved the stability of the tower to a certain extent, they also bring challenges such as increased costs, increased construction difficulty, and difficulty in modifying existing towers. In particular, when faced with extreme wind speed conditions, the effects of these traditional reinforcement methods are often limited and it is difficult to meet the needs of high safety standards.

[0004] Therefore, there is an urgent need for a new technical solution that can simplify the processing process, reduce costs, and significantly improve the tower's ability to resist strong winds and safety factor. Summary of the invention

[0005] In order to improve the defect of the existing wind power tower that the ability to resist strong winds is weak, the present application provides an automatic tightening device for the strong wind resistance flange of the wind power tower.

[0006] The present application provides an automatic tightening device for the anti-strong wind flange of a wind power tower, which adopts the following technical solution: An automatic tightening device for the strong wind resistant flange of a wind power generation tower is arranged on a tower body, comprising: a flange assembly, a rope, a fixing assembly and a tightening assembly; the flange assembly comprises a first flange plate, a second flange plate and a gasket; the first flange plate is fixedly sleeved on the tower body, the second flange plate is also fixedly sleeved on the tower body, and the gasket is annular and arranged between the first flange plate and the second flange plate; three first connecting holes uniformly distributed in the circumferential direction are opened on the side of the gasket away from the tower body; a rope is passed through each of the first connecting holes, and the rope is fixedly connected to the gasket through the fixing assembly; the end of the rope away from the gasket is arranged in the tightening assembly; the tightening assembly is used to control the rope to be in a tightened or relaxed state.

[0007] By adopting the above technical scheme, the tower body can be limited by gaskets, ropes and tightening components; when the wind speed in a certain direction around the tower body increases, the rope closest to the direction can be tightened by the tightening component, and the ropes in other directions can be loosened by the tightening component, thereby improving the tower body's ability to resist strong winds; by setting the first flange and the second flange, the gasket can be fixed between the first flange and the second flange while connecting the tower structure; by setting the first connecting hole, the rope can be passed through the first connecting hole; by setting the fixing component, one end of the rope can be fixedly connected to the gasket; by setting the tightening component, the rope can be controlled to be in a tightened or loosened state.

[0008] Optionally, it also includes a wind speed and direction sensor and a controller. The wind speed and direction sensor is ring-shaped and fixedly arranged on the tower body. The wind speed and direction sensor and the tightening assembly are electrically connected to the controller.

[0009] By adopting the above technical solution, the wind speed and wind direction signals can be received by the wind speed and wind direction sensor, and the signals can be transmitted to the controller. When the wind speed in a certain direction exceeds the preset value, the wind speed and wind direction sensor can transmit the control signal to the controller, so that the tightening assembly corresponding to the rope close to the direction tightens the rope, and the remaining ropes are loosened through the tightening assembly, thereby improving the tower body's ability to resist strong winds.

[0010] Optionally, the tightening assembly includes a fixed box, a hydraulic cylinder, a limit block and a positioning component; the fixed box is an internal hollow structure, and a second connecting hole is opened on the top side close to the tower body, and the end of the rope away from the gasket enters the fixed box through the second connecting hole; the hydraulic cylinder is horizontally arranged and fixedly arranged in the fixed box, the limit block is fixedly connected to the piston rod of the hydraulic cylinder, and the hydraulic cylinder is electrically connected to the controller; the end of the rope away from the gasket is fixedly connected to the limit block through the fixed assembly; the positioning component is also arranged in the control box, and the positioning component is used to position the rope in a tightened state or a relaxed state.

[0011] By adopting the above technical scheme, when it is necessary to tighten the rope, the piston rod of the hydraulic cylinder can be shortened to drive the limit block to move in the direction away from the tower body until the rope is in a tightened state, and then the rope is positioned in the tightened state by the positioning component; when it is necessary to relax the rope, the piston rod of the hydraulic cylinder can be extended to drive the limit block to move in the direction close to the tower body until the rope is in a relaxed state, and then the rope is positioned in the relaxed state by the positioning component; by setting the fixed box, structural support can be provided for other components such as the hydraulic cylinder, the limit block and the positioning component; by setting the hydraulic cylinder, the limit block can be driven to move; by setting the limit block, the limit block can be connected to the end of the rope away from the gasket, so that when the limit block moves under the action of the hydraulic cylinder, the end of the rope away from the gasket can be driven to move as well, and then the rope can be adjusted to a tightened or relaxed state; by setting the positioning component, the rope can be positioned in a tightened or relaxed state.

[0012] Optionally, the tightening assembly also includes a driving component; the positioning component includes a first positioning block and a second positioning block; the driving component is used to drive the first positioning block and the second positioning block to move up and down in the vertical direction, the first positioning block is located on the side close to the hydraulic cylinder, and the second positioning block is located on the side away from the hydraulic cylinder; a positioning groove is provided on the limit block, and the first positioning block and the second positioning block can both be engaged in the positioning groove, when the first positioning block is engaged in the positioning groove, the rope is in a tightened state, and when the second positioning block is engaged in the positioning groove, the rope is in a relaxed state.

[0013] By adopting the above technical scheme, when the piston rod of the hydraulic cylinder is shortened, the limit block is driven to move, and the rope is in a tightened state at the same time, the first positioning block is located directly above the limit block, and the first positioning block is driven downward by the driving component, so that the first positioning block can be inserted into the positioning groove, thereby positioning the limit block, and the rope can be positioned in the tightened state; when the piston rod of the hydraulic cylinder is extended, the limit block is driven to move, and the rope is in a relaxed state at the same time, the limit block is moved to directly below the second positioning block, and the second positioning block is mobilized to move downward by the driving component, so that the second positioning block can be inserted into the positioning groove, thereby positioning the limit block, and the rope can be positioned in the relaxed state; by setting the first positioning block and the second positioning block, and providing the positioning groove on the limit block, the rope can be positioned in the tightened or relaxed state; by setting the driving component, the first positioning block and the second positioning block can be driven to move up and down in the vertical direction.

[0014] Optionally, the positioning groove passes through the limit block in the vertical direction, and a first limit groove and a second limit groove are provided on the bottom wall of the fixed box; the first limit groove is located directly below the first positioning block, and its size is adapted to the size of the first positioning block, and when the first positioning block is engaged in the positioning groove, the bottom end of the first positioning block is engaged in the first limit groove; the second limit groove is located directly below the second positioning block, and its size is adapted to the size of the second positioning block, and when the second positioning block is engaged in the positioning groove, the bottom end of the second positioning block is engaged in the second limit groove.

[0015] By adopting the above technical solution, when the piston rod of the hydraulic cylinder is shortened, the limit block is driven to move, and the rope is in a tightened state. At this time, the first positioning block is located directly above the limit block, and the first positioning block is driven downward by the driving component to penetrate the first positioning block into the positioning groove, and the bottom of the first positioning block passes through the limit block and penetrates into the first limiting groove, so that the limit block can be positioned, and the rope can be positioned in a tightened state; when the piston rod of the hydraulic cylinder is extended, the limit block is driven to move, and the rope is in a relaxed state, the limit block is moved to directly below the second positioning block, and the second positioning block is mobilized to move downward by the driving component, and the second positioning block can be penetrated into the positioning groove, and the bottom of the second positioning block passes through the limit block and penetrates into the second limiting groove, so that the limit block is positioned, and the rope can be positioned in a relaxed state; by providing the first limiting groove and the second limiting groove on the bottom wall of the fixed box, the first positioning block and the second positioning block can not only be clamped in the positioning groove when positioning, but also can be correspondingly clamped in the first limiting groove and the second limiting groove, thereby improving the overall stability of the device.

[0016] Optionally, the positioning component also includes a third positioning block, and the third positioning block is located between the first positioning block and the second positioning block; the third positioning block can also be snapped into the positioning groove, and when the third positioning block is snapped into the positioning groove, the rope is in a normal state.

[0017] By adopting the above technical solution, when the tower body is in an environment without wind or with low wind speed, the piston rod of the hydraulic cylinder can be moved to drive the limit block to move below the third positioning block. At this time, the rope is neither in a tightened state nor in a relaxed state, but in a normal state. Then, the third positioning block is mobilized to move downward by the driving component, and the third positioning block is inserted into the positioning groove, so that the limit block can be positioned and the rope can be positioned in a normal state. Through the setting of the third positioning block, the rope can be flexibly switched between the normal state, the tightened state and the relaxed state. This optimized design improves the stability and reliability of the device, and further enhances the wind resistance of the wind power tower under extreme wind conditions.

[0018] Optionally, a third limiting groove is provided on the bottom wall of the fixed box, and the third limiting groove is located between the first limiting groove and the second limiting groove, and is located directly below the third positioning block, and its size is adapted to the size of the third positioning block. When the third positioning block is snapped into the positioning groove, the bottom end of the third positioning block is inserted into the third limiting groove.

[0019] By adopting the above technical solution, when the piston rod of the hydraulic cylinder drives the limit block to move below the third positioning block, the third positioning block is mobilized to move downward by the driving component, so that the third positioning block can be inserted into the positioning groove, and at the same time, the bottom of the third positioning block passes through the limit block and into the third limit groove, thereby positioning the limit block and positioning the rope in a normal state; by opening the third limit groove on the bottom wall of the fixed box, when the rope is in a normal state, the third positioning block can not only be inserted into the positioning groove, but also can be inserted into the third limit groove at the same time, thereby further improving the overall stability of the device.

[0020] Optionally, the driving component includes a telescopic rod and a positioning plate; the telescopic rod is an electric telescopic rod, and its fixed end is fixedly connected to the top wall in the fixed box, and the telescopic rod is also electrically connected to the controller; the positioning plate is fixedly connected to the movable end at the bottom of the telescopic rod, and the tops of the first positioning block, the second positioning block and the third positioning block are all fixedly connected to the positioning plate.

[0021] By adopting the above technical solution, the positioning plate can be driven to move up and down by the telescopic rod, thereby driving the first positioning block, the second positioning block and the third positioning block to move up and down; the effect of driving the three positioning blocks to move up and down by one telescopic rod is achieved; through the coordinated action of the driving component and the positioning component, the rope can be quickly switched between different states, thereby improving the flexibility and response speed of the device.

[0022] Optionally, the fixing assembly includes a fixing block, a fixing nut, a fixing washer and a fixing plate; a fixing block fixedly connected to the gasket is provided on one side of each of the first connecting holes away from the tower body; a fixing block is also fixedly connected to one side of each of the limit blocks; a first connecting hole is provided on the top surface of the fixing block, the first connecting hole passes through the fixing block in a vertical direction, and the rope can be passed through the first connecting hole; the fixing block is a cavity structure, two fixing plates are slidably arranged in the fixing block in a horizontal direction, a second connecting hole is provided on the side wall of one side of the fixing block, the second connecting hole passes through the fixing block in a horizontal direction; a third connecting hole is provided on the fixing plate; the sizes of the second connecting hole and the third connecting hole are matched, and the axial directions coincide; the fixing nut is passed through the second connecting hole and the third connecting hole, the rope passed through the first connecting hole is located between the two fixing plates, and the fixing nut and the fixing washer are used to fix the rope between the two fixing plates.

[0023] By adopting the above technical solution, both ends of the rope can be passed through the first communicating holes on the corresponding fixing blocks, and then fixed by the corresponding fixing nuts and fixing washers.

[0024] Optionally, a fourth connecting hole is opened on the top surface of the fixed block, and the rope can be passed not only through the first connecting hole, but also through the fourth connecting hole; the ropes passed through the first connecting hole and the fourth connecting hole are both located between the two fixed plates.

[0025] By adopting the above technical solution, the rope can be passed not only in the first connecting hole but also in the fourth connecting hole, thereby increasing the contact area between the rope and the fixing plate and improving the stability of the rope fixing.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the arrangement of flange components, ropes, fixing components and tightening components, the tower body can be limited by gaskets, ropes and tightening components; when the wind speed in a certain direction around the tower body increases, the rope closest to the direction can be tightened through the tightening component, and the ropes in other directions can be loosened through the tightening component, thereby improving the tower body's ability to resist strong winds; 2. Through the setting of the wind speed and direction sensor and the controller, the wind speed and direction sensor can receive the wind speed and direction signals and transmit the signals to the controller. When the wind speed in a certain direction exceeds the preset value, the wind speed and direction sensor can transmit the control signal to the controller, so that the corresponding tightening assembly connected to the rope close to the direction tightens the rope, and the other ropes loosen the ropes through the tightening assembly; 3. Through the arrangement of the fixed box, the hydraulic cylinder, the limit block and the positioning component, when the rope needs to be tightened, the piston rod of the hydraulic cylinder can be shortened to drive the limit block to move in the direction away from the tower body until the rope is in a tightened state, and then the rope is positioned in the tightened state through the positioning component; when the rope needs to be loosened, the piston rod of the hydraulic cylinder can be extended to drive the limit block to move in the direction close to the tower body until the rope is in a loosened state, and then the rope is positioned in the loosened state through the positioning component. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 yes Figure 1 A partial enlarged schematic diagram of part A; Figure 3 is a partial cross-sectional schematic diagram of a collection component in an embodiment of the present application; Figure 4 It is a partial cross-sectional schematic diagram of the fixing component in the embodiment of the present application.

[0028] Explanation of the accompanying drawings: 1. tower body; 2. first flange; 3. second flange; 4. gasket; 41. bolt hole; 42. first connecting hole; 5. rope; 6. fixing assembly; 61. fixing block; 611. first connecting hole; 612. second connecting hole; 613. fourth connecting hole; 62. fixing nut; 63. fixing washer; 64. fixing plate; 65. third connecting hole; 7. tightening assembly; 71. fixing box; 711. first limiting groove; 712. second limiting groove; 713. third limiting groove; 72. hydraulic cylinder; 73. limiting block; 731. positioning groove; 74. first positioning block; 75. second positioning block; 76. third positioning block; 77. telescopic rod; 78. positioning plate; 8. wind speed and direction sensor. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-4 This application is described in further detail.

[0030] The present application discloses an automatic tightening device for the anti-strong wind flange of a wind power tower. Figure 1 and Figure 2, an automatic tightening device for the anti-strong-wind flange of a wind power generation tower is arranged on a tower body 1, comprising a flange assembly, a rope 5, a fixing assembly 6 and a tightening assembly 7; the flange assembly comprises a first flange 2, a second flange 3 and a gasket 4; the first flange 2 is fixedly sleeved on the tower body 1, and the second flange 3 is also fixedly sleeved on the tower body 1, and the gasket 4 is annular and arranged between the first flange 2 and the second flange 3; a side of the gasket 4 close to the tower body 1 is provided with a plurality of bolt holes 41 evenly distributed along its circumference, and the bolt holes 41 are used for passing bolts to fix the gasket 4 between the first flange 2 and the second flange 3, and a side of the gasket 4 away from the tower body 1 is provided with three first connecting holes 42 evenly distributed along the circumference; a rope 5 is passed through each first connecting hole 42, and the rope 5 is fixedly connected to the gasket 4 through the fixing assembly 6; an end of the rope 5 away from the gasket 4 is arranged in the tightening assembly 7; the tightening assembly 7 is used to control the rope 5 to be in a tightened or relaxed state.

[0031] When the wind speed in a certain direction around the tower body 1 increases, the rope 5 closest to the direction can be tightened by the tightening assembly 7, and the ropes 5 in other directions can be loosened by the tightening assembly 7, thereby improving the tower body 1's ability to resist strong winds.

[0032] Reference Figure 1 A wind speed and direction sensor 8 and a controller are provided on the tower body 1. The wind speed and direction sensor 8 is ring-shaped and fixedly arranged at a position near the top of the tower body 1. The wind speed and direction sensor 8 and the tightening assembly 7 are electrically connected to the controller; the wind speed and direction sensor 8 is used to receive signals of wind speed and wind direction in the environment where the tower body 1 is located, and transmit the signals to the controller. When the wind speed in a certain direction exceeds a preset value, the wind speed and direction sensor 8 can transmit a control signal to the controller, so that the tightening assembly 7 corresponding to the rope 5 close to the direction tightens the rope 5, and the remaining ropes 5 are loosened by the tightening assembly 7, thereby improving the strong wind resistance of the tower body 1.

[0033] Reference Figure 3 The tightening assembly 7 includes a fixed box 71, a hydraulic cylinder 72, a limit block 73 and a positioning component; the fixed box 71 is an internal hollow structure, and a second connecting hole is opened on the top side close to the tower body 1, and the end of the rope 5 away from the gasket 4 enters the fixed box 71 through the second connecting hole; the hydraulic cylinder 72 is horizontally arranged and fixedly arranged in the fixed box 71, the limit block 73 is fixedly connected to the piston rod of the hydraulic cylinder 72, and the hydraulic cylinder 72 is electrically connected to the controller; the end of the rope 5 away from the gasket 4 is fixedly connected to the limit block 73 through the fixed assembly 6; the positioning component is also arranged in the control box, and the positioning component is used to position the rope 5 in a tightened state or a relaxed state.

[0034] When the rope 5 needs to be tightened, the piston rod of the hydraulic cylinder 72 can be shortened to drive the limit block 73 to move in the direction away from the tower body 1 until the rope 5 is in a tightened state, and then the rope 5 is positioned in the tightened state by the positioning component; when the rope 5 needs to be loosened, the piston rod of the hydraulic cylinder 72 can be extended to drive the limit block 73 to move in the direction close to the tower body 1 until the rope 5 is in a relaxed state, and then the rope 5 is positioned in the relaxed state by the positioning component.

[0035] Reference Figure 3 The tightening assembly 7 also includes a driving component; the positioning component includes a first positioning block 74 and a second positioning block 75; the driving component is used to drive the first positioning block 74 and the second positioning block 75 to move up and down in the vertical direction, the first positioning block 74 is located on the side close to the hydraulic cylinder 72, and the second positioning block 75 is located on the side away from the hydraulic cylinder 72; a positioning groove 731 is provided on the limit block 73, and the first positioning block 74 and the second positioning block 75 can be clamped in the positioning groove 731. When the first positioning block 74 is clamped in the positioning groove 731, the rope 5 is in a tightened state, and when the second positioning block 75 is clamped in the positioning groove 731, the rope 5 is in a relaxed state.

[0036] When the piston rod of the hydraulic cylinder 72 is shortened, the limit block 73 is driven to move, and the rope 5 is in a tightened state at the same time, the first positioning block 74 is located directly above the limit block 73, and the first positioning block 74 is driven downward by the driving component to insert the first positioning block 74 into the positioning groove 731, so that the limit block 73 can be positioned, and the rope 5 can be positioned in the tightened state; when the piston rod of the hydraulic cylinder 72 is extended, the limit block 73 is driven to move, and the rope 5 is in a relaxed state at the same time, the limit block 73 is moved to directly below the second positioning block 75, and the second positioning block 75 is mobilized by the driving component to move downward, and the second positioning block 75 can be inserted into the positioning groove 731, so that the limit block 73 is positioned, and the rope 5 can be positioned in the relaxed state.

[0037] Reference Figure 3 The positioning groove 731 penetrates the limiting block 73 in the vertical direction, and a first limiting groove 711 and a second limiting groove 712 are provided on the bottom wall of the fixed box 71; the first limiting groove 711 is located directly below the first positioning block 74, and its size is adapted to the size of the first positioning block 74. When the first positioning block 74 is clamped in the positioning groove 731, the bottom end of the first positioning block 74 is clamped in the first limiting groove 711; the second limiting groove 712 is located directly below the second positioning block 75, and its size is adapted to the size of the second positioning block 75. When the second positioning block 75 is clamped in the positioning groove 731, the bottom end of the second positioning block 75 is clamped in the second limiting groove 712.

[0038] When the piston rod of the hydraulic cylinder 72 is shortened, the limit block 73 is driven to move, and the rope 5 is in a tightened state. At this time, the first positioning block 74 is located directly above the limit block 73, and the first positioning block 74 is driven downward by the driving component to allow the first positioning block 74 to be inserted into the positioning groove 731. At the same time, the bottom of the first positioning block 74 passes through the limit block 73 and enters the first limiting groove 711, so that the limit block 73 can be positioned, and the rope 5 can be positioned in the tightened state; when the piston rod of the hydraulic cylinder 72 is extended, the limit block 73 is driven to move, and the rope 5 is in a relaxed state. At this time, the limit block 73 moves to directly below the second positioning block 75, and the second positioning block 75 is mobilized by the driving component to move downward, so that the second positioning block 75 can be inserted into the positioning groove 731. At the same time, the bottom of the second positioning block 75 passes through the limit block 73 and enters the second limiting groove 712, so that the limit block 73 is positioned, and the rope 5 can be positioned in the relaxed state.

[0039] Reference Figure 3 The positioning component also includes a third positioning block 76, which is located between the first positioning block 74 and the second positioning block 75; the third positioning block 76 can also be snapped into the positioning groove 731, and when the third positioning block 76 is snapped into the positioning groove 731, the rope 5 is in a normal state; when the environment in which the tower body 1 is located is in a windless state or a state with a low wind speed, the piston rod of the hydraulic cylinder 72 can be moved to drive the limit block 73 to move below the third positioning block 76. At this time, the rope 5 is neither in a tightened state nor in a relaxed state, but in a normal state. Then, the third positioning block 76 is mobilized to move downward by the driving component, and the third positioning block 76 is inserted into the positioning groove 731, so that the limit block 73 can be positioned, and the rope 5 is positioned in a normal state.

[0040] Reference Figure 3 The third limiting groove 713 is formed on the bottom wall of the fixed box 71, and the third limiting groove 713 is located between the first limiting groove 711 and the second limiting groove 712, and is located directly below the third positioning block 76, and its size is adapted to the size of the third positioning block 76. When the third positioning block 76 is engaged in the positioning groove 731, the bottom end of the third positioning block 76 is inserted into the third limiting groove 713; when the piston rod of the hydraulic cylinder 72 drives the limiting block 73 to move below the third positioning block 76, the third positioning block 76 is moved downward by the driving component, so that the third positioning block 76 can be inserted into the positioning groove 731, and at the same time, the bottom of the third positioning block 76 passes through the limiting block 73 and enters the third limiting groove 713, thereby positioning the limiting block 73 and positioning the rope 5 in a normal state.

[0041] Reference Figure 3The driving component includes a telescopic rod 77 and a positioning plate 78; the telescopic rod 77 is an electric telescopic rod 77, and its fixed end is fixedly connected to the top wall in the fixed box 71, and the telescopic rod 77 is also electrically connected to the controller; the positioning plate 78 is fixedly connected to the movable end at the bottom of the telescopic rod 77, and the tops of the first positioning block 74, the second positioning block 75 and the third positioning block 76 are all fixedly connected to the positioning plate 78; the telescopic rod 77 is used to drive the positioning plate 78 to move up and down, and drive the first positioning block 74, the second positioning block 75 and the third positioning block 76 to move up and down; the effect of driving the three positioning blocks to move up and down by one telescopic rod 77 is achieved; through the coordinated action of the driving component and the positioning component, the rope 5 can be quickly switched between different states, thereby improving the flexibility and response speed of the device.

[0042] Reference Figure 1 and Figure 4 The fixing assembly 6 includes a fixing block 61, a fixing nut 62, a fixing washer 63 and a fixing plate 64; a first connecting hole 611 is provided on the top surface of the fixing block 61, and the first connecting hole 611 passes through the fixing block 61 in the vertical direction, and the rope 5 can be inserted into the first connecting hole 611; the fixing block 61 is a cavity structure, and two fixing plates 64 are slidably arranged in the fixing block 61 in the horizontal direction, and a second connecting hole 612 is provided on the side wall of one side of the fixing block 61, and the second connecting hole 612 passes through the fixing block 61 in the horizontal direction; a third connecting hole 65 is provided on the fixing plate 64; the second connecting hole 612 and the third connecting hole 65 are provided. The sizes of the through holes 65 are matched, and the axial directions coincide; the fixing nut 62 is passed through the second connecting hole 612 and the third connecting hole 65, and the rope 5 passed through the first connecting hole 611 is located between the two fixing plates 64, and the fixing nut 62 and the fixing washer 63 are used to fix the rope 5 between the two fixing plates 64; a fourth connecting hole 613 is opened on the top surface of the fixing block 61, and the rope 5 can be passed not only through the first connecting hole 611, but also through the fourth connecting hole 613; the rope 5 passed through the first connecting hole 611 and the fourth connecting hole 613 are both located between the two fixing plates 64.

[0043] When fixing the rope 5, first pass the rope 5 through the first connecting hole 611 on the fixing block 61, and then through the fourth connecting hole 613, and then pass the fixing nut 62 through the second connecting hole 612 on the fixing block 61 and the third connecting hole 65 on the two fixing plates 64, and finally, put the fixing washer 63 on the fixing nut 62, so that the two fixing plates 64 clamp the rope 5 located between the two fixing plates 64.

[0044] The implementation principle of the automatic tightening device for the anti-strong wind flange of a wind power tower in the embodiment of the present application is as follows: The wind speed and direction sensor 8 receives the signal of the wind speed and wind direction of the environment in which the tower body 1 is located. When the wind speed in a certain direction around increases and exceeds the preset value, the wind speed and direction sensor 8 transmits the signal to the controller, and the controller issues an instruction to the tightening component 7 closest to the wind direction to put the rope 5 in a tightened state, driving the piston rod of the hydraulic cylinder 72 in the tightening component 7 to shorten, driving the limit block 73 to move, and at the same time driving the rope 5 in a tightened state. At this time, the first positioning block 74 is located directly above the limit block 73, and the first positioning block 74 is driven downward by extending the telescopic rod 77, so that the first positioning block 74 can be inserted into the positioning groove 731, and at the same time, the bottom of the first positioning block 74 passes through the limit block 73 and penetrates into the first limit groove 711, so that the limit block 73 can be positioned, and the rope 5 can be positioned in the tightened state; at the same time, the controller issues an instruction to other tightening components 7 to put the rope 5 in a relaxed state, driving the piston rod of the hydraulic cylinder 72 in the corresponding tightening component 7 to extend, driving When the limit block 73 moves and drives the rope 5 in a relaxed state, the limit block 73 moves to the bottom of the second positioning block 75, and the second positioning block 75 is moved downward by extending the telescopic rod 77, so that the second positioning block 75 can be inserted into the positioning groove 731, and the bottom of the second positioning block 75 passes through the limit block 73 and into the second limit groove 712, so that the limit block 73 is positioned, and the rope 5 can be positioned in the relaxed state; when the surrounding wind direction is relatively stable and does not reach the preset value, the wind speed and direction The sensor 8 transmits the signal to the controller, and the controller issues an instruction to each group of tightening components 7 to put the rope 5 in a normal state, driving the piston rod of each hydraulic cylinder 72 to move below the third positioning block 76, and the third positioning block 76 is driven downward by extending the telescopic rod 77, so that the third positioning block 76 can be inserted into the positioning groove 731. At the same time, the bottom of the third positioning block 76 passes through the limit block 73 and enters the third limit groove 713, thereby positioning the limit block 73 and positioning the rope 5 in a normal state.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An automatic tightening device for a wind power tower anti-strong wind flange, arranged on a tower body (1), characterized in that: include: A flange assembly, a rope (5), a fixing assembly (6) and a tightening assembly (7); the flange assembly comprises a first flange (2), a second flange (3) and a gasket (4); the first flange (2) is fixedly sleeved on the tower body (1), the second flange (3) is also fixedly sleeved on the tower body (1), the gasket (4) is annular and arranged between the first flange (2) and the second flange (3); three first connecting holes (42) uniformly distributed in the circumferential direction are opened on the side of the gasket (4) away from the tower body (1); a rope (5) is passed through each of the first connecting holes (42), and the rope (5) is fixedly connected to the gasket (4) through the fixing assembly (6); one end of the rope (5) away from the gasket (4) is arranged in the tightening assembly (7); the tightening assembly (7) is used to control the rope (5) to be in a tightened or loosened state.

2. The automatic tightening device for anti-strong-wind flange of a wind power tower according to claim 1 is characterized in that: It also comprises a wind speed and direction sensor (8) and a controller. The wind speed and direction sensor (8) is ring-shaped and is fixedly arranged on the tower body (1). The wind speed and direction sensor (8) and the tightening assembly (7) are both electrically connected to the controller.

3. The automatic tightening device for anti-strong-wind flange of a wind power tower according to claim 2 is characterized in that: The tightening assembly (7) comprises a fixed box (71), a hydraulic cylinder (72), a limit block (73) and a positioning component; the fixed box (71) is an internal hollow structure, and a second connection hole is provided on the top side of the fixed box (71) close to the tower body (1), and the end of the rope (5) away from the gasket (4) enters the fixed box (71) through the second connection hole; the hydraulic cylinder (72) is horizontally arranged and fixedly arranged in the fixed box (71), the limit block (73) is fixedly connected to the piston rod of the hydraulic cylinder (72), and the hydraulic cylinder (72) is electrically connected to the controller; the end of the rope (5) away from the gasket (4) is fixedly connected to the limit block (73) through the fixed assembly (6); the positioning component is also arranged in the control box, and the positioning component is used to position the rope (5) in a tightened state or a relaxed state.

4. The automatic tightening device for anti-strong-wind flange of a wind power tower according to claim 3 is characterized in that: The tightening assembly (7) also includes a driving component; the positioning component includes a first positioning block (74) and a second positioning block (75); the driving component is used to drive the first positioning block (74) and the second positioning block (75) to move up and down in the vertical direction, the first positioning block (74) is located on a side close to the hydraulic cylinder (72), and the second positioning block (75) is located on a side away from the hydraulic cylinder (72); a positioning groove (731) is provided on the limit block (73), and the first positioning block (74) and the second positioning block (75) can both be engaged in the positioning groove (731), when the first positioning block (74) is engaged in the positioning groove (731), the rope (5) is in a tightened state, and when the second positioning block (75) is engaged in the positioning groove (731), the rope (5) is in a relaxed state.

5. The automatic tightening device for anti-strong-wind flange of a wind power tower according to claim 4 is characterized in that: The positioning groove (731) passes through the limiting block (73) in the vertical direction, and a first limiting groove (711) and a second limiting groove (712) are provided on the bottom wall of the fixed box (71); the first limiting groove (711) is located directly below the first positioning block (74), and its size is adapted to the size of the first positioning block (74); when the first positioning block (74) is engaged in the positioning groove (731), the bottom end of the first positioning block (74) is engaged in the first limiting groove (711); the second limiting groove (712) is located directly below the second positioning block (75), and its size is adapted to the size of the second positioning block (75); when the second positioning block (75) is engaged in the positioning groove (731), the bottom end of the second positioning block (75) is engaged in the second limiting groove (712).

6. The automatic tightening device for anti-strong-wind flange of a wind power tower according to claim 5 is characterized in that: The positioning component also includes a third positioning block (76), and the third positioning block (76) is located between the first positioning block (74) and the second positioning block (75); the third positioning block (76) can also be snapped into the positioning groove (731), and when the third positioning block (76) is snapped into the positioning groove (731), the rope (5) is in a normal state.

7. The automatic tightening device for anti-strong-wind flange of a wind power tower according to claim 6 is characterized in that: A third limiting groove (713) is provided on the bottom wall of the fixed box (71). The third limiting groove (713) is located between the first limiting groove (711) and the second limiting groove (712), and is located directly below the third positioning block (76). The size of the third limiting groove (713) is adapted to the size of the third positioning block (76). When the third positioning block (76) is snap-fitted into the positioning groove (731), the bottom end of the third positioning block (76) is inserted into the third limiting groove (713).

8. The automatic tightening device for the anti-strong-wind flange of a wind power tower according to claim 7 is characterized in that: The driving component comprises a telescopic rod (77) and a positioning plate (78); the telescopic rod (77) is an electric telescopic rod (77), and its fixed end is fixedly connected to the top wall in the fixed box (71), and the telescopic rod (77) is also electrically connected to the controller; the positioning plate (78) is fixedly connected to the movable end at the bottom of the telescopic rod (77), and the tops of the first positioning block (74), the second positioning block (75) and the third positioning block (76) are all fixedly connected to the positioning plate (78).

9. The automatic tightening device for anti-strong-wind flange of a wind power tower according to claim 8, characterized in that: The fixing assembly (6) comprises a fixing block (61), a fixing nut (62), a fixing washer (63) and a fixing plate (64); a first connecting hole (611) is provided on the top surface of the fixing block (61), the first connecting hole (611) passes through the fixing block (61) in a vertical direction, and the rope (5) can be inserted into the first connecting hole (611); the fixing block (61) has a cavity structure, two fixing plates (64) are slidably arranged in the fixing block (61) in a horizontal direction, and a second connecting hole (612) is provided on the side wall of one side of the fixing block (61), the second connecting hole (612) passes through the fixed block (61) in the horizontal direction; a third connecting hole (65) is opened on the fixed plate (64); the sizes of the second connecting hole (612) and the third connecting hole (65) are adapted to each other, and the axial directions coincide with each other; the fixing nut (62) is passed through the second connecting hole (612) and the third connecting hole (65), and the rope (5) passed through the first connecting hole (611) is located between the two fixed plates (64); the fixing nut (62) and the fixing washer (63) are used to fix the rope (5) between the two fixed plates (64).

10. The automatic tightening device for anti-strong-wind flange of a wind power tower according to claim 9, characterized in that: A fourth connecting hole (613) is provided on the top surface of the fixing block (61), and the rope (5) can be passed not only through the first connecting hole (611) but also through the fourth connecting hole (613); the rope (5) passed through the first connecting hole (611) and the fourth connecting hole (613) are both located between the two fixing plates (64).

Images