A wind turbine coupling centering and positioning bracket

Abstract

The present invention discloses a wind turbine coupling centering and positioning bracket in the field of wind turbine coupling mounting brackets, comprising a bracket base, a first base and a second base being slidably connected to the bracket base; a first gantry is provided on the first base, and a second gantry is provided on the second base; a centering axis support mechanism is provided on the first gantry and the second gantry, a first centering device capable of being raised and lowered along the first gantry is provided on the side of the first gantry, and a second centering device capable of being raised and lowered along the second gantry is provided on the side of the second positioning gantry; a coupling mounting structure for mounting a coupling is provided between the first gantry and the second gantry. The present invention utilizes the bracket to carry the first centering device and the second centering device, and can effectively exert the centering accuracy of the first centering device and the second centering device on the basis of maintaining the stable position of the shaft, thereby improving the accuracy of centering and positioning of the coupling.

Description

Technical Field

[0001] The invention relates to the field of a wind generator coupling mounting bracket, in particular to a wind generator coupling centering and positioning bracket. Background Art

[0002] During the installation of wind turbines, the wind turbine coupling centering and positioning bracket is a device used in wind turbine generator sets to ensure that the coupling remains correctly aligned during installation and operation.

[0003] During the operation of a wind turbine, if the coupling is misaligned, additional vibration will be generated. This vibration will not only affect the normal operation of the generator, but may also cause damage to the equipment. The centering bracket can ensure the precise centering of the coupling, thereby reducing vibration and ensuring stable operation of the equipment. Misaligned couplings will cause additional stress on components such as shafts, bearings, and gears, and long-term operation may cause fatigue and damage to these components. The centering bracket can effectively prevent this damage and extend the service life of the equipment.

[0004] Precise alignment can ensure that the energy transfer of wind turbines is more efficient. If the coupling is not aligned, energy will be lost during the transfer process, reducing the power generation efficiency. The alignment bracket can ensure the high efficiency of energy transfer, thereby improving the power generation efficiency of wind turbines.

[0005] At present, the alignment of wind turbine couplings mainly adopts a simple laser alignment method, which is prone to operational errors during actual operation. Therefore, how to ensure the alignment stability of wind turbine couplings has become an urgent problem to be solved in the field of wind turbine coupling mounting brackets. Summary of the invention

[0006] The purpose of the present invention is to overcome the problem that in the prior art, when using laser alignment technology to align the coupling, there is a large operating error, which makes it impossible to give full play to the accuracy advantage of laser alignment, resulting in errors in the alignment of the shafts on both sides of the coupling. A wind turbine coupling alignment and positioning bracket is provided. By using the bracket to carry the first centering device and the second centering device, the centering accuracy of the first centering device and the second centering device can be effectively exerted on the basis of maintaining the stability of the shaft position, thereby improving the accuracy of the coupling alignment and positioning.

[0007] The purpose of the present invention is mainly achieved through the following technical solutions:

[0008] A wind turbine coupling centering and positioning bracket comprises a bracket base, a first base and a second base are slidably connected to the bracket base, and the first base and the second base are symmetrically distributed with the center line of the bracket base as a reference;

[0009] A first gantry is provided on the first base, a second gantry is provided on the second base, and the first gantry is directly opposite to the second gantry;

[0010] The first gantry and the second gantry are both provided with a centering axis support mechanism, the first gantry side is provided with a first centering device capable of being raised and lowered along the first gantry, and the second gantry side is provided with a second centering device capable of being raised and lowered along the second gantry;

[0011] A coupling installation structure for installing a coupling is provided between the first gantry and the second gantry.

[0012] Furthermore, the centering axis support mechanism includes an upper limit slide plate, a load-bearing limit slide plate is provided below the upper limit slide plate, the upper limit slide plate and the load-bearing limit slide plate are both located in the first gantry or the second gantry and can slide vertically, and a gap is left between the upper limit slide plate and the load-bearing limit slide plate;

[0013] The sides of the first gantry and the second gantry are both provided with limiting sliding holes, and a centering structure that can be freely extended and retracted is provided in the limiting sliding holes. The upper end of the centering structure is fixed to the upper limit sliding plate, and the lower end of the centering structure is fixed to the load-bearing limiting sliding plate. The telescopic length of the upper end of the centering structure is the same as the telescopic length of the lower end.

[0014] Further, the centering structure includes an upper alignment end head, the upper alignment end head is fixed to the upper limit slide plate, a centering telescopic assembly is provided below the upper alignment end head, a lower alignment end head is fixedly connected below the centering telescopic assembly, and the lower alignment end head is fixed to the load-bearing limit slide plate;

[0015] When the two ends of the centering telescopic assembly are telescoped, the center distance between the upper alignment end head and the centering telescopic assembly and the center distance between the lower alignment end head and the centering telescopic assembly are the same;

[0016] The first centering device or the second centering device is fixed on the centering telescopic assembly.

[0017] Further, the centering telescopic assembly includes an intermediate sleeve, an upper alignment rod is provided above the intermediate sleeve, the upper end of the upper alignment rod is fixed to the upper alignment end head, and the lower end thereof is inserted into the intermediate sleeve, and a lower alignment rod is provided below the intermediate sleeve, the lower end of the lower alignment rod is fixed to the lower alignment end head, and the upper end thereof is inserted into the intermediate sleeve;

[0018] A gear is provided in the center of the middle sleeve, and upper racks and lower racks are symmetrically distributed on both sides of the gear, and the upper racks and lower racks are meshed with the gear;

[0019] The upper end of the upper rack is fixed to the upper alignment rod, and the lower end of the lower rack is fixed to the lower alignment rod;

[0020] An upper half ring plate is provided on a side of the upper alignment rod avoiding the upper rack, and a lower half ring plate is provided on a side of the lower alignment rod avoiding the lower rack.

[0021] Furthermore, the load-bearing and limiting slide plate comprises a load-bearing plate, on which a shaft limiting pad for bearing the shaft body is disposed, and the shaft limiting pad is detachably and fixedly connected to the load-bearing plate;

[0022] A stabilizing bracket is provided below the bearing plate and is fixed to the bearing plate. A plurality of telescopic support rods are provided below the stabilizing bracket, one end of the telescopic support rod is fixed to the stabilizing bracket and the other end thereof is fixed to the first gantry or the second gantry.

[0023] Furthermore, the stabilizing bracket includes a stabilizing base, a horizontal connecting plate passing through the stabilizing base is provided on the stabilizing base, a plurality of vertical support rods perpendicular to the horizontal connecting plate are provided on the horizontal connecting plate, one end of the vertical support rod is fixed to the bottom of the bearing plate, and the other end thereof is fixed to the horizontal connecting plate, connecting shafts are provided on two opposite sides of the horizontal connecting plate, an oblique support rod is fixedly connected to the connecting shaft, and the oblique support rod is fixed to the bottom surface of the bearing plate.

[0024] Furthermore, a lifting base is provided at the bottom of the coupling mounting structure, and the lifting base is fixed to the bracket base;

[0025] The coupling installation structure comprises a structural body, in which an adsorption fixing groove is arranged, and in which a side clamping assembly capable of clamping the coupling is arranged.

[0026] Furthermore, a contact pad is provided inside the adsorption fixed groove, and a plurality of adsorption ports are provided on the side of the contact pad, each of the adsorption ports is connected to a negative pressure chamber, and the negative pressure chamber is connected to a branch connecting pipe, a main connecting pipe is provided in the structural body, and the branch connecting pipes are connected to the main connecting pipe, and a negative pressure fan is provided on the side of the structural body, and the main connecting pipe is connected to the negative pressure fan.

[0027] Furthermore, a pneumatic ring cavity is further provided in the main body of the structure, and the pneumatic ring cavity is sleeved outside the adsorption fixing groove, and a plurality of obliquely inserted movable rods are obliquely inserted circumferentially on the inner wall of the adsorption fixing groove, and one end of the obliquely inserted movable rod extends into the adsorption fixing groove, and the other end thereof extends into the pneumatic ring cavity;

[0028] The end of the obliquely inserted movable rod is provided with a contact terminal;

[0029] An air compressor is arranged on the side of the structural main body, and the air compressor is communicated with the air pressure ring cavity.

[0030] Furthermore, a top load-bearing telescopic rod is provided between the upper limit slide and the first gantry or the second gantry, one end of the top load-bearing telescopic rod is fixed to the first gantry or the second gantry, and the other end thereof is fixed to the upper limit slide;

[0031] The top load-bearing telescopic rod includes an upper rod shell and a lower rod shell, the upper rod shell and the lower rod shell are in docking contact, a partition plate is provided at the end of the upper rod shell, an insertion rod is provided in the upper rod shell, the upper end of the insertion rod is fixed to the upper rod shell, and the lower end of the insertion rod is inserted into the lower rod shell, a limiting sleeve is provided in the lower rod shell, the insertion rod is inserted into the limiting sleeve, a return spring is provided on the outer sleeve of the limiting sleeve, one end of the return spring is fixed to the lower rod shell, and the other end of the return spring is fixed to the partition plate.

[0032] In summary, the present invention has the following beneficial effects compared with the prior art:

[0033] (1) The support base is used to build a support foundation. The first base and the second base symmetrically distributed on the support base are used to correspond to the positions of the shafts that need to be docked by the coupling. The centering shaft support mechanism on the first gantry corresponds to one of the shafts, and the second gantry corresponds to the other shaft. The centering shaft support mechanism is used to support the bottom of the shaft, thereby achieving the purpose of assisting in adjusting the position of the shaft, so that the shafts on both sides of the coupling can be successfully docked.

[0034] (2) The telescopic length of the upper end of the centering structure is the same as that of the lower end thereof. When the first centering device and the second centering device are both located on the centering structure, the first centering device and the second centering device can be adjusted in position by following the sliding of the centering shaft support mechanism. The axis position can also be reflected in combination with the diameter of the shaft. When the centering structure eliminates the fixed deviation of the upper limit slide and the load-bearing limit slide, the axis position of the shaft can be accurately fed back, thereby facilitating the correspondence between the coupling and the shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0036] Figure 1 It is a schematic diagram of the structure of the present invention;

[0037] Figure 2 It is a side view of the present invention;

[0038] Figure 3It is a partial cross-sectional view of the centering structure of the present invention;

[0039] Figure 4 This is a schematic diagram of the structure of the stable support of the present invention;

[0040] Figure 5 It is a cross-sectional view of the installation structure of the coupling of the present invention;

[0041] Figure 6 This is a schematic diagram of the top load-bearing telescopic rod structure of the present invention;

[0042] The reference numerals represent: 1. first upper calibration terminal; 2. upper limit slide plate; 3. second upper calibration terminal; 4. first gantry; 5. centering structure; 6. first centering device; 7. first lower calibration terminal; 8. load-bearing limit slide plate; 9. second lower calibration terminal; 10. limit slide hole; 11. first base; 12. first calibrator; 13. coupling mounting structure; 14. lifting base; 15. bracket base; 16. second calibrator; 17. second base; 18. second gantry; 19. second centering device; 20. top load-bearing telescopic rod; 22. installation limit slide block; 51. upper alignment terminal; 52. centering telescopic assembly; 521. upper alignment rod; 522. upper half ring plate; 523. intermediate sleeve; 524. upper rack; 525. gear; 52 6. Lower rack; 527. Lower half ring plate; 528. Lower alignment rod; 53. Lower alignment terminal; 81. Load-bearing plate; 82. Shaft limiting pad; 83. Stable bracket; 831. Vertical support rod; 832. Oblique support rod; 833. Horizontal connecting plate; 834. Connecting shaft; 835. Stable base; 84. Telescopic support rod; 131. Structural body; 132. Air compressor; 133. Main connecting pipe; 134. Negative pressure fan; 135. Branch connecting pipe; 136. Negative pressure chamber; 137. Adsorption port; 138. Contact pad; 139. Air pressure ring chamber; 1310. Obliquely inserted movable rod; 1311. Contact terminal; 201. Upper rod housing; 202. Insertion rod; 203. Return spring; 204. Partition plate; 205. Lower rod housing; 206. Limit sleeve. DETAILED DESCRIPTION

[0043] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0044] Example:

[0045] like Figure 1 to Figure 6As shown, this embodiment relates to a wind turbine coupling centering and positioning bracket, including a bracket base 15, on which a first base 11 and a second base 17 are slidably connected, and the first base 11 and the second base 17 are symmetrically distributed with respect to the center line of the bracket base 15;

[0046] A first gantry 4 is disposed on the first base 11, and a second gantry 18 is disposed on the second base 17, wherein the first gantry 4 faces the second gantry 18;

[0047] The first gantry 4 and the second gantry 18 are both provided with a centering axis support mechanism, the first gantry 4 is provided with a first centering device 6 capable of being raised and lowered along the first gantry 4, and the second gantry is provided with a second centering device 19 capable of being raised and lowered along the second gantry 18.

[0048] A coupling installation structure 13 for installing a coupling is provided between the first gantry 4 and the second gantry 18 .

[0049] Since the coupling is an intermediate connecting piece used for transmission and connection of two rotating shafts, the shafts on both sides need to be axially symmetrical when installing the coupling so that the coupling can maintain the rotation of the shafts normally. In order to ensure long-term stable operation, the centering positioning of the coupling is particularly important, because the coupling can maintain the rotation of the shaft more stably under strict centering conditions, and if there is a problem of axis deviation, it will generate a torque that affects the rotation of the shaft, causing the shaft to deform or be damaged during long-term rotation.

[0050] In this embodiment, the bracket base 15 is used to build a supporting foundation. The first base 11 and the second base 17 symmetrically distributed on the bracket base 15 are used to correspond to the positions of the shafts that need to be docked by the coupling. The centering axis support mechanism on the first gantry 4 corresponds to one of the shafts, and the second gantry 18 corresponds to the other shaft. The centering axis support mechanism is used to support the bottom of the shaft, thereby achieving the purpose of assisting in adjusting the position of the shaft, so that the shafts on both sides of the coupling can be successfully docked.

[0051] The coupling installation structure 13 in this embodiment can complete the bearing of the coupling between the first gantry 4 and the second gantry 18, thereby achieving the purpose of completing the installation of the coupling.

[0052] In the present embodiment, since accurate alignment of the shaft and the coupling is required, a first calibrator 12 is provided on the first base 11, and a second calibrator 16 is provided on the second base 17. The first calibrator 12 and the second calibrator 16 are both level measuring instruments. By measuring the horizontal positions of the first base 11 and the second base 17 at different positions, the inclination angle of the bracket base 15 can be fed back, so that the first base 11 and the second base 17 can be made horizontal by adjusting the bracket base 15, or the centering axis support mechanism on the first gantry 4 and the second gantry 18 can be adaptively adjusted according to the result of the horizontal position measurement, so that the environmental adaptability of the present embodiment is enhanced. A first centering device 6 is provided on the side of the first gantry 4, and a second centering device 19 is provided on the side of the second gantry 18. Both the first centering device 6 and the second centering device 19 adopt laser centering, which provides centering guidance for the docking at the coupling by reflecting the axial position of the shafts on the first gantry 4 and the second gantry 18, so as to avoid position deviation in the shaft docking at the coupling, resulting in operational error and damage to the shaft rotation.

[0053] The centering shaft support mechanism on the first gantry 4 realizes the axial position feedback of the shaft in the first gantry 4 through the lifting and lowering of the first centering device 6 when supporting the shaft, and matches it with the coupling through laser alignment. The centering support mechanism and the second centering device 19 on the second gantry 18 also realize the position matching of the shaft and the coupling in the same way, so that the coupling can achieve effective shaft alignment during installation. When the two shafts are coaxially arranged, the synchronous centering setting of the shafts on both sides can be achieved through the mutual correspondence between the first centering device 6 and the second centering device 19, so that the positions of the shafts can be matched while matching the coupling.

[0054] In this embodiment, the first centering device 6, the second centering device 19, the first calibrator 12 and the second calibrator 16 are of models that can be configured on a large scale using the existing technology, so that this embodiment can be mass-produced.

[0055] This embodiment is actually used to carry the first centering device 6, the second centering device 19, the first calibrator 12 and the second calibrator 16, and can carry the shafts on both sides of the coupling, so as to assist in completing the centering positioning of the coupling and the shafts on both sides of the coupling, and effectively avoid the problem of centering position deviation when the shaft and the coupling are connected, thereby ensuring the stability of the shaft and the coupling during long-term use.

[0056] Further, the centering axis support mechanism includes an upper limit slide plate 2, a load-bearing limit slide plate 8 is provided below the upper limit slide plate 2, the upper limit slide plate 2 and the load-bearing limit slide plate 8 are both located in the first gantry 4 or the second gantry 18 and can slide vertically, and a gap is left between the upper limit slide plate 2 and the load-bearing limit slide plate 8;

[0057] The sides of the first gantry 4 and the second gantry 18 are both provided with limiting sliding holes 10, and a centering structure 5 that can be freely extended and retracted is provided in the limiting sliding holes 10. The upper end of the centering structure 5 is fixed to the upper limit sliding plate, and the lower end of the centering structure 5 is fixed to the load-bearing limiting sliding plate 8. The telescopic length of the upper end of the centering structure 5 is the same as the telescopic length of the lower end.

[0058] In this embodiment, the upper limit slide plate 2 is used to contact the top point of the shaft, and the load-bearing limit slide plate 8 is used to contact the bottom point of the shaft. The weight bearing of the load-bearing limit slide plate 8 can effectively complete the bottom support of the shaft, so that the longitudinal position of the shaft can be adjusted to achieve the purpose of lifting or lowering the shaft, so that the shafts on both sides of the coupling can be in a suitable docking position. Since the specifications of the upper limit slide plate 2 are fixed and the specifications of the load-bearing limit slide plate 8 are also fixed, the upper limit slide plate 2 and the load-bearing limit slide plate 8 can effectively feedback the length of the shaft diameter by contacting the top point and the bottom point of the shaft, and the first centering device 6 is located on the side of the first gantry 4, and the second centering device 19 is located on the second gantry On the side of 18, the upper end of the centering structure 5 in the centering axis support mechanism is fixed to the upper limit slide plate, and the lower end of the centering structure 5 is fixed to the load-bearing limit slide plate 8. The telescopic length of the upper end of the centering structure 5 is the same as the telescopic length of the lower end. When the first centering device 6 and the second centering device 19 are both located on the centering structure 5, they can follow the sliding of the centering axis support mechanism to achieve position adjustment of the first centering device 6 and the second centering device 19, and can also reflect the axis position in combination with the diameter of the shaft. When the centering structure 5 eliminates the fixed deviation of the upper limit slide plate 2 and the load-bearing limit slide plate 8, it can accurately feedback the axis position of the shaft, thereby facilitating the correspondence between the coupling and the shaft.

[0059] The stable support of the load-bearing and limiting slide plate 8 can effectively adjust the position of the shaft, thereby achieving overall alignment of the coupling and the shaft and reducing the generation of operating errors.

[0060] Further, the centering structure 5 includes an upper alignment end head 51, the upper alignment end head 51 is fixed to the upper limit slide plate 2, a centering telescopic component 52 is provided below the upper alignment end head 53, a lower alignment end head 53 is fixedly connected below the centering telescopic component 52, and the lower alignment end head 53 is fixed to the load-bearing limit slide plate 8;

[0061] When both ends of the centering telescopic component 52 are telescoped, the center distance between the upper alignment end 51 and the centering telescopic component 52 and the center distance between the lower alignment end 53 and the centering telescopic component 52 are the same;

[0062] The first centering device 6 or the second centering device 19 is fixed on the centering telescopic assembly 52 .

[0063] In this embodiment, the upper alignment end head 51 in the centering structure 5 is fixed to the upper limit slide 2, and the lower alignment end head 53 is fixed to the load-bearing limit slide 8, so that the upper alignment end head 51 can slide synchronously with the upper limit slide 2, and the lower alignment end head 53 can slide synchronously with the load-bearing limit slide 8, so that the spacing between the upper limit slide 2 and the load-bearing limit slide 8 can be reflected by the upper alignment end head 51 and the lower alignment end head 53, and by eliminating the spacing error in the initial state, the diameter of the shaft can be reflected, and the position of the axis can be fed back through the first centering device 6 or the second centering device 19.

[0064] Further, the centering telescopic assembly 52 includes an intermediate sleeve 523, an upper alignment rod 521 is provided above the intermediate sleeve 523, the upper end of the upper alignment rod 521 is fixed to the upper alignment end 51, and the lower end thereof is inserted into the intermediate sleeve 523, and a lower alignment rod 528 is provided below the intermediate sleeve 523, the lower end of the lower alignment rod 528 is fixed to the lower alignment end 53, and the upper end thereof is inserted into the intermediate sleeve 523;

[0065] A gear 525 is disposed in the center of the middle sleeve 523, and an upper rack 524 and a lower rack 526 are symmetrically distributed on both sides of the gear 525, and the upper rack 524 and the lower rack 526 are meshed with the gear 525;

[0066] The upper end of the upper rack 524 is fixed to the upper alignment rod 521, and the lower end of the lower rack 526 is fixed to the lower alignment rod 528;

[0067] An upper half ring plate 522 is provided on a side of the upper alignment rod 521 avoiding the upper rack 524 , and a lower half ring plate 527 is provided on a side of the lower alignment rod 528 avoiding the lower rack 526 .

[0068] The intermediate sleeve 523 is used to accommodate part of the upper alignment rod 521 and part of the lower alignment rod 528, and realizes synchronous adjustment of the upper alignment rod 521 and the lower alignment rod 528 through the engagement of the upper rack 524 and the lower rack 526 with the gear 525, so that the synchronous movement distances of the upper alignment end 51 and the lower alignment end 53 are the same, so that the position of the intermediate sleeve 523 can be parallel to the axial position of the shaft between the upper limit slide 2 and the load-bearing limit slide 8, thereby feeding back the specific position of the axis and assisting in the centering operation.

[0069] When the gear 525 rotates, the upper rack 524 and the lower rack 526 can rise or fall synchronously under the drive of the gear 525, and the movement distance of the upper rack 524 is the same as the movement distance of the lower rack 526, thereby realizing synchronous adjustment. In this way, it is only necessary to eliminate the mechanical error of the equipment itself through adjustment in the initial stage, and the shaft diameter size of different shafts can be fed back through the contact between the upper limit slide 2 and the load-bearing limit slide 8 and the shaft.

[0070] The upper half ring plate 522 ensures that the upper alignment rod 521 does not deviate from the axis during the extension and retraction process by providing side support, thereby enhancing the side support of the upper alignment rod 521 to keep it in a vertical state;

[0071] The lower half ring plate 527 ensures that the lower alignment rod 528 will not produce axial deviation during the extension and retraction process through side support, thereby strengthening the side support of the lower alignment rod 528 to keep it in a vertical state.

[0072] In this embodiment, the bottom of the first base 11 and the bottom of the second base 17 are both provided with an installation limit slider 22, and the installation limit slider 22 is a wedge-shaped structure. The first base 11 and the second base 17 are detachably fixed by sliding the installation limit slider 22 into the bracket base 15, so that the first base 11 and the second base 17 can stably support the first gantry 4 and the second gantry 18. When it is necessary to perform coupling centering and positioning operations, first install and fix the bracket base 15, and fix the first base 11 and the second base 17 to the bottom of the shaft. By setting up the first gantry 4 and the second gantry 18, the bottom of the shaft is supported by the load-bearing limit slide 8. The horizontal positions of the bracket base 15, the first base 11 and the second base 17 are fed back by telescoping the first calibrator 12 and the second calibrator 16. The feedback of the first calibrator 12 and the second calibrator 16 are taken into consideration of mechanical errors. At this time, the shaft is supported by the load-bearing limit slide 8, and the first centering device 6 and the second centering device 19 are used to center the shaft and the coupling. On the basis of eliminating mechanical errors, the centering operation can be effectively completed. The coupling mounting structure 13 is used to effectively complete the positioning of the coupling and realize the installation operation of the coupling and the shaft, thereby helping to avoid the hazards to the operation of the wind turbine caused by the centering position deviation.

[0073] On this basis, the load-bearing and limiting slide plate 8 comprises a load-bearing plate 81, on which a shaft limiting pad 82 for bearing the shaft body is disposed, and the shaft limiting pad 82 is detachably and fixedly connected to the load-bearing plate 81;

[0074] A stabilizing bracket 83 is provided below the supporting plate 81, and the stabilizing bracket 83 is fixed to the supporting plate 81. A plurality of telescopic support rods 84 are provided below the stabilizing bracket 83, and one end of the telescopic support rod 84 is fixed to the stabilizing bracket 83, and the other end thereof is fixed to the first gantry 4 or the second gantry 18.

[0075] In this embodiment, the bearing plate 81 is used to bear the weight of the shaft body, and the shaft limiting pad 82 is used to support the shaft body and prevent the shaft from deflecting on the bearing plate 81, thereby playing a limiting role. The specifications of the bearing plate 81 and the shaft limiting pad 82 are fixed, and the errors occurring during the centering operation can be eliminated by calculation. The shaft limiting pad 82 and the bearing plate 81 are detachably fixed, so that shaft limiting pads 82 of different specifications can be replaced to accommodate shaft bodies of different diameters.

[0076] The axis positions fed back by the first centering device 6 and the second centering device 19 on the centering structure 5 in this embodiment are for the convenience of the centering operation. Before the centering operation, it is still necessary to perform pre-calculations based on the specific conditions of this embodiment, the coupling and the shaft body, so as to further avoid the influence of errors on the connection between the coupling and the shaft.

[0077] Furthermore, the stabilizing bracket 83 includes a stabilizing base 835, on which a horizontal connecting plate 833 penetrating the stabilizing base 835 is provided, on which a plurality of vertical support rods 831 perpendicular to the horizontal connecting plate 833 are provided, one end of the vertical support rod 831 is fixed to the bottom of the supporting plate 81, and the other end thereof is fixed to the horizontal connecting plate 833, and connecting shafts 834 are provided on two opposite sides of the horizontal connecting plate 833, to which an oblique support rod 832 is fixedly connected, and the oblique support rod 832 is fixed to the bottom surface of the supporting plate 81.

[0078] In this embodiment, a supporting base is formed by a stable base 835, and a telescopic support rod 84 is used as the supporting base of the stable base 835. The point supporting force of the telescopic support rod 84 is evenly distributed to the horizontal connecting plate 833 by means of a horizontal connecting plate 833 penetrating the stable base 835, so that the supporting force is evenly dispersed, thereby achieving the effect of reducing local shear stress. By connecting the vertical support rod 831 and the horizontal connecting plate 833, the load-bearing plate 81 is effectively directly supported, and the telescopic oblique support rod 832 can form a triangular support state with the horizontal connecting plate 833, thereby enhancing the overall stable supporting capacity of the stable bracket 83. The connecting shaft 834 is at the end of the horizontal connecting rod, and uses its own cylindrical shape to effectively reduce the risk of breakage at the connection position, thereby improving the overall stability of the stable bracket 83.

[0079] In this embodiment, the supporting effect of the telescopic support rod 84 on the stabilizing bracket 83 is used to effectively support the supporting plate 81, and the telescopic ability of the telescopic support rod 84 can effectively change the height of the supporting plate 81, thereby assisting in adapting to the centering relationship between the alignment shaft and the coupling, which is beneficial to the centering operation.

[0080] On the basis of combining with the centering structure 5, the bearing plate 81 slides under the action of the telescopic support rod 84, and the lower alignment rod 528 slides on the side of the first gantry 4 or the second gantry 18 under the action of the lower alignment end 53. At this time, the upper limit slide plate 2 is adjusted to contact the apex of the shaft body. Under the action of the centering structure 5, the sliding distance of the upper limit slide plate 2 is the same as the sliding distance of the bearing limit slide plate 8. When the upper limit slide plate 2 contacts the apex of the shaft body, the first centering device 6 or the second centering device 19 on the intermediate sleeve 523 can feedback the position of the plane where the axis is located. Since the first gantry 4, the second gantry 18 and the coupling mounting structure 13 are all located on the bracket base 15, it is possible to ensure that there is only a height difference between the shaft body and the coupling during installation through preset adjustment, and the distance difference in the horizontal direction can be eliminated. At this time, the first centering device 6 and the second centering device 19 ensure that the axis of the shaft body and the axis of the coupling are in the same horizontal plane, that is, at the same height, so that the centering position is accurate.

[0081] A first upper calibration end 1 and a second upper calibration end 3 are provided on two opposite sides of the upper limit slide plate 2, and a first lower calibration end 7 and a second lower calibration end 9 are provided on two opposite sides of the supporting plate 81. The first upper calibration end 1 is aligned with the first lower calibration end 7, and the second upper calibration end 3 is aligned with the second lower calibration end 9. The first upper calibration end 1, the second upper calibration end 3, the first lower calibration end 7 and the second lower calibration end 9 all adopt the distance measuring equipment in the prior art. By measuring the distance between the first upper calibration end 1 and the first lower calibration end 7, and the distance between the second upper calibration end 3 and the second lower calibration end 9, it is determined whether the supporting plate 81 and the upper limit slide plate 2 are parallel. If the supporting plate 81 and the upper limit slide plate 2 are parallel, the result error of the centering operation is within a reasonable range. If there is an angle between the supporting plate 81 and the upper limit slide plate 2, the centering operation may have a large error, which needs to be reviewed and adjusted through other technical means.

[0082] The first upper calibration terminal 1, the second upper calibration terminal 3, the first lower calibration terminal 7 and the second lower calibration terminal 9 are used as protective measuring instruments in the present application, which can effectively reduce the probability of errors in the present application through the application of distance measuring instruments in the prior art, thereby increasing the safety and stability of the installation of the wind turbine generator coupling.

[0083] Furthermore, a lifting base 14 is provided at the bottom of the coupling mounting structure 13, and the lifting base 14 is fixed to the bracket base 15;

[0084] The coupling installation structure 13 comprises a structural body 131 , in which an adsorption fixing groove is arranged, and in which a side clamping assembly capable of clamping the coupling is arranged.

[0085] In this embodiment, the lifting base 14 is used to adjust the height of the coupling installation structure 13, thereby completing the centering operation of the shaft body and the coupling.

[0086] The structural body 131 is used to bear the weight of the coupling, the adsorption fixing groove prevents the coupling from falling out through negative pressure adsorption, and the side clamping assembly is used to stabilize the posture of the coupling.

[0087] Furthermore, a contact pad 138 is provided inside the adsorption fixed groove, and a plurality of adsorption ports 137 are provided on the side of the contact pad 138, each adsorption port 137 is connected to a negative pressure chamber 136, and the negative pressure chamber 136 is connected to a branch connecting pipe 135, a main connecting pipe 133 is provided inside the structural body 131, and the branch connecting pipes 135 are connected to the main connecting pipe 133, and a negative pressure fan 134 is provided on the side of the structural body 131, and the main connecting pipe 133 is connected to the negative pressure fan 134.

[0088] The contact pad 138 is used to support the adsorption port 137, and the adsorption port 137 is connected to the negative pressure chamber 136 and the main connecting pipe 133 through the branch connecting pipe 135. The main connecting pipe 133 is connected to the negative pressure fan 134. The negative pressure state is formed in the negative pressure chamber 136 through the negative pressure fan 134, so that the adsorption port 137 can use the negative pressure to form an adsorption effect on the coupling.

[0089] In this embodiment, the stability of the coupling on the coupling mounting structure 13 needs to be guaranteed to avoid alignment problems caused by the coupling position deviation when the coupling and the shaft body are docked. Therefore, the adsorption fixing groove is required to achieve the function of stable fixation on the basis of protecting the coupling, and the use of negative pressure can effectively avoid contact damage to the coupling surface.

[0090] Furthermore, a gas pressure ring cavity 139 is further provided in the structural main body 131, and the gas pressure ring cavity 139 is sleeved outside the adsorption fixing groove, and a plurality of obliquely inserted movable rods 1310 are obliquely inserted circumferentially on the inner wall of the adsorption fixing groove, and one end of the obliquely inserted movable rod 1310 extends into the adsorption fixing groove, and the other end thereof extends into the gas pressure ring cavity 139;

[0091] The end of the obliquely inserted movable rod 1310 is provided with a contact terminal 1311;

[0092] An air compressor 132 is disposed on the side of the structural body 131 , and the air compressor 132 is communicated with the air pressure ring cavity.

[0093] In this embodiment, the air pressure ring cavity 139 in the structural body 131 can connect all the oblique movable rods 1310, so as to balance the external force on the oblique movable rods 1310, so that the oblique movable rods 1310 can be extended or retracted synchronously, so that the oblique movable rods 1310 can act on the surface of the coupling with the same force. The negative pressure fan 134 and the air compressor 132 in this application are independent of each other. In order to avoid surface damage to the coupling, when the suction port 137 can stabilize the coupling, the oblique movable rods 1310 are avoided from being extended through the air compressor 132. When the suction port 137 cannot effectively stabilize the coupling, the position of the coupling is stabilized by the oblique movable rods 1310, so that the stability of the coupling docking can be effectively guaranteed on the basis of ensuring that the surface of the coupling is intact.

[0094] In this embodiment, by combining negative pressure adsorption and the arrangement of the air pressure ring cavity 139, an initial pressure value is set so that the obliquely inserted movable rod 1310 can be maintained in the structural body 131 by its own gravity, and will not fall into the air pressure ring cavity 139 or be pressed out of the structural body 131 into the adsorption fixing groove. When the coupling needs to be supported laterally, the air pressure in the air pressure ring cavity 139 is increased, and the obliquely inserted movable rod 1310 can extend and support the coupling. When support is not required, the air pressure is reduced, and the obliquely inserted movable rod 1310 will retract into the structural body 131. This embodiment can also use the existing technology to set a limiting protrusion on the obliquely inserted movable rod 1310, and use the limiting protrusion to clamp the obliquely inserted movable rod 1310 within a certain range of movement, thereby limiting the sliding range of the obliquely inserted movable rod 1310 and preventing the obliquely inserted movable rod 1310 from falling off or falling out.

[0095] Furthermore, a top load-bearing telescopic rod 20 is provided between the upper limit slide 2 and the first gantry 4 or the second gantry 18, one end of the top load-bearing telescopic rod 20 is fixed to the first gantry 4 or the second gantry 18, and the other end thereof is fixed to the upper limit slide 2;

[0096] The top load-bearing telescopic rod 20 includes an upper rod shell 201 and a lower rod shell 205, the upper rod shell 201 and the lower rod shell 205 are in docking contact, a partition plate 204 is provided at the end of the upper rod shell 201, an insertion rod 202 is provided in the upper rod shell 201, the upper end of the insertion rod 202 is fixed to the upper rod shell 201, and the lower end thereof is inserted into the lower rod shell 205, a limiting sleeve 206 is provided in the lower rod shell 205, the insertion rod 202 is inserted into the limiting sleeve 206, a return spring 203 is provided on the outer sleeve of the limiting sleeve 206, one end of the return spring 203 is fixed to the lower rod shell 205, and the other end thereof is fixed to the partition plate 204.

[0097] A top bearing telescopic rod 20 is provided between the upper limit slide 2 and the first gantry 4 or the second gantry 18, and such a design is intended to achieve a stable and adjustable connection relationship between the two to adapt to different usage requirements and working conditions. One end of the top bearing telescopic rod 20 is fixedly connected to the first gantry 4 or the second gantry 18 to ensure that it forms a solid whole with the gantry, and the other end is fixedly connected to the upper limit slide 2, thereby organically combining the slide with the gantry, so that the slide can move stably along a predetermined track or direction during operation, and through the telescopic effect of the top bearing telescopic rod 20, the position of the slide can be flexibly adjusted to meet the requirements of different spatial parameters such as height and distance, thereby improving the applicability and flexibility of the entire device.

[0098] The top bearing telescopic rod 20 is mainly composed of an upper rod housing 201 and a lower rod housing 205, which are butt-jointed to form a relatively closed and relatively telescopic cavity structure. This butt-jointing method not only ensures the integrity of the telescopic rod, but also provides basic spatial conditions for its telescopic action, so that the telescopic rod can change its length within a certain range, thereby driving the upper limit slide plate 2 to make corresponding displacement adjustments.

[0099] A partition plate 204 is provided at the end of the upper rod housing 201, and the partition plate 204 serves to separate and limit the internal space of the upper rod housing 201, providing a support and positioning basis for the installation and layout of subsequent components. A plug rod 202 is also provided inside the upper rod housing 201, and the upper end of the plug rod 202 is fixedly connected to the upper rod housing 201. This fixing method allows the plug rod 202 and the upper rod housing 201 to form an integral structure, which can jointly withstand external forces; the lower end of the plug rod 202 is inserted into the lower rod housing 205, so that the two can work together during the extension and retraction process and maintain a stable connection relationship.

[0100] The lower rod housing 205 is provided with a limiting sleeve 206. After the insertion rod 202 is inserted into the limiting sleeve 206, the limiting sleeve 206 can guide the insertion rod 202 to ensure that the insertion rod 202 moves along the correct direction and path during the extension process, avoiding deviation, jamming and other phenomena, and ensuring the normal operation of the top bearing telescopic rod 20. The limiting sleeve 206 is provided with a return spring 203 on the outer sleeve. One end of the return spring 203 is fixed to the lower rod housing 205, and the other end is fixed to the partition plate 204. Such an installation method enables the return spring 203 to generate a corresponding elastic force during the extension of the telescopic rod. When the lower rod housing 205 is subjected to an external force and moves downward, the return spring 203 will be stretched. When the external force disappears, the elastic force of the return spring 203 can assist the lower rod housing 205 to automatically return to the initial position, which can reduce the frequency and intensity of human operation to a certain extent, reduce the risk of operating errors, and extend the service life of the top bearing telescopic rod 20.

[0101] Therefore, the top load-bearing telescopic rod 20 can not only realize the stable connection and flexible extension and retraction between the upper limit slide plate 2 and the gantry, but also has the automatic resetting function, so as to ensure that the upper limit slide plate 2 can effectively contact the shaft surface, thereby forming a clamping effect with the load-bearing limit slide plate 8, so as to achieve the purpose of feedback of the centering status of the shafts on both sides of the coupling through the first centering device 6 and the second centering device 19.

[0102] The top load-bearing telescopic rod 20 in this embodiment can serve as the supporting basis of the upper limit slide plate 2 with telescopic connectivity on the top of the upper limit slide plate 2, so as to achieve the purpose of preventing the upper limit slide plate 2 from being affected in its position adjustment due to its own gravity. When the upper limit slide plate 2 is driven by the upper alignment end 51 to slide, the top load-bearing telescopic rod 20 can be used to better complete the upward sliding of the upper limit slide plate 2, and the sliding range of the upper limit slide plate 2 can also be limited by the length of the top load-bearing telescopic rod 20 itself, so as to avoid the contact between the upper limit slide plate 2 and the load-bearing limit slide plate 8 when there is no axis between the upper limit slide plate 2 and the load-bearing limit slide plate 8, thereby ensuring that the present embodiment can maintain sufficient accuracy during use.

[0103] In the actual application of this embodiment, the bracket base 15 is first installed at the construction site, and the bracket base 15 spans the coupling and the ends of the shaft body on both sides of the coupling. At this time, the first base 11 and the second base 17 are slidably installed, so that the ends of the shaft body can be effectively sleeved in the first gantry 4 or the second gantry 18. Since the ends of the shaft body and the coupling are both above the bracket base 15, the positions of the first gantry 4 and the second gantry 18 on the bracket base 15 are determined, so the centering axis support mechanism can adjust the positions of the shaft body and the coupling accordingly, so that the only variable of the centering operation can be limited to the height adjustment, and the shaft body end is supported by the load-bearing limit slide plate 8 in the centering axis support mechanism, and the height of the stable bracket 83 is supported and adjusted by the telescopic support rod 84 to reach the corresponding position, and the horizontal height of the axis of the shaft body is fed back by adjusting the spacing between the upper limit slide plate 2 and the load-bearing limit slide plate 8, so as to achieve the purpose of aligning the shaft body and the coupling, and stably realize the accuracy of the centering operation.

[0104] Before adjusting the position of the load-bearing and limiting slide plate 8, the height of the coupling mounting structure 13 is adjusted by the lifting base 14 at the bottom of the coupling mounting structure 13, so that the coupling is at a suitable height, and then the load-bearing and limiting slide plate 8 is used to adjust the shaft body to a suitable height.

[0105] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wind turbine coupling centering and positioning bracket, comprising a bracket base, characterized in that: The support base is slidably connected with a first base and a second base, and the first base and the second base are symmetrically distributed with the center line of the support base as a reference; A first gantry is provided on the first base, a second gantry is provided on the second base, and the first gantry is directly opposite to the second gantry; The first gantry and the second gantry are both provided with a centering axis support mechanism, the first gantry side is provided with a first centering device capable of being raised and lowered along the first gantry, and the second gantry side is provided with a second centering device capable of being raised and lowered along the second gantry; A coupling installation structure for installing a coupling is provided between the first gantry and the second gantry; The centering shaft support mechanism includes an upper limit slide plate, a load-bearing limit slide plate is provided below the upper limit slide plate, the upper limit slide plate and the load-bearing limit slide plate are both located in the first gantry or the second gantry and can slide vertically, and a gap is left between the upper limit slide plate and the load-bearing limit slide plate; The sides of the first gantry and the second gantry are both provided with limiting sliding holes, and a centering structure that can be freely extended and retracted is provided in the limiting sliding holes. The upper end of the centering structure is fixed to the upper limit sliding plate, and the lower end of the centering structure is fixed to the load-bearing limiting sliding plate. The telescopic length of the upper end of the centering structure is the same as the telescopic length of the lower end.

2. A wind turbine coupling centering and positioning bracket according to claim 1, characterized in that: The centering structure includes an upper alignment end head, the upper alignment end head is fixed to the upper limit slide plate, a centering telescopic assembly is provided below the upper alignment end head, a lower alignment end head is fixedly connected below the centering telescopic assembly, and the lower alignment end head is fixed to the load-bearing limit slide plate; When the two ends of the centering telescopic assembly are telescoped, the center distance between the upper alignment end head and the centering telescopic assembly and the center distance between the lower alignment end head and the centering telescopic assembly are the same; The first centering device or the second centering device is fixed on the centering telescopic assembly.

3. A wind turbine coupling centering and positioning bracket according to claim 2, characterized in that: The centering telescopic assembly includes an intermediate sleeve, an upper alignment rod is provided above the intermediate sleeve, the upper end of the upper alignment rod is fixed to the upper alignment end head, and the lower end thereof is inserted into the intermediate sleeve, and a lower alignment rod is provided below the intermediate sleeve, the lower end of the lower alignment rod is fixed to the lower alignment end head, and the upper end thereof is inserted into the intermediate sleeve; A gear is provided in the center of the middle sleeve, and upper racks and lower racks are symmetrically distributed on both sides of the gear, and the upper racks and lower racks are meshed with the gear; The upper end of the upper rack is fixed to the upper alignment rod, and the lower end of the lower rack is fixed to the lower alignment rod; An upper half ring plate is provided on a side of the upper alignment rod avoiding the upper rack, and a lower half ring plate is provided on a side of the lower alignment rod avoiding the lower rack.

4. A wind turbine coupling centering and positioning bracket according to claim 1, characterized in that: The load-bearing and limiting slide plate comprises a load-bearing plate, on which a shaft limiting pad for bearing the shaft body is arranged, and the shaft limiting pad is detachably and fixedly connected to the load-bearing plate; A stabilizing bracket is provided below the bearing plate and is fixed to the bearing plate. A plurality of telescopic support rods are provided below the stabilizing bracket, one end of the telescopic support rod is fixed to the stabilizing bracket and the other end thereof is fixed to the first gantry or the second gantry.

5. A wind turbine coupling centering and positioning bracket according to claim 4, characterized in that: The stabilizing bracket includes a stabilizing base, a horizontal connecting plate passing through the stabilizing base is provided on the stabilizing base, a plurality of vertical supporting rods perpendicular to the horizontal connecting plate are provided on the horizontal connecting plate, one end of the vertical supporting rod is fixed to the bottom of the bearing plate, and the other end thereof is fixed to the horizontal connecting plate, connecting shafts are provided on two opposite side surfaces of the horizontal connecting plate, an oblique supporting rod is fixedly connected to the connecting shaft, and the oblique supporting rod is fixed to the bottom surface of the bearing plate.

6. A wind turbine coupling centering and positioning bracket according to claim 1, characterized in that: A lifting base is provided at the bottom of the coupling mounting structure, and the lifting base is fixed to the bracket base; The coupling installation structure comprises a structural body, in which an adsorption fixing groove is arranged, and in which a side clamping assembly capable of clamping the coupling is arranged.

7. A wind turbine coupling centering and positioning bracket according to claim 6, characterized in that: A contact pad is provided inside the adsorption fixing groove, and a plurality of adsorption ports are provided on the side of the contact pad, each of the adsorption ports is connected to a negative pressure chamber, and the negative pressure chamber is connected to a branch connecting pipe, a main connecting pipe is provided in the structural body, and the branch connecting pipes are connected to the main connecting pipe, and a negative pressure fan is provided on the side of the structural body, and the main connecting pipe is connected to the negative pressure fan.

8. A wind turbine coupling centering and positioning bracket according to any one of claims 6 or 7, characterized in that: The main body of the structure is also provided with an air pressure ring cavity, which is sleeved outside the adsorption fixing groove, and a plurality of obliquely inserted movable rods are obliquely inserted on the inner wall of the adsorption fixing groove in a circumferential direction, one end of the obliquely inserted movable rod extends into the adsorption fixing groove, and the other end thereof extends into the air pressure ring cavity; The end of the obliquely inserted movable rod is provided with a contact terminal; An air compressor is arranged on the side of the structural main body, and the air compressor is communicated with the air pressure ring cavity.

9. The wind turbine generator coupling centering and positioning bracket according to claim 1, characterized in that: A top load-bearing telescopic rod is provided between the upper limit slide and the first gantry or the second gantry, one end of the top load-bearing telescopic rod is fixed to the first gantry or the second gantry, and the other end thereof is fixed to the upper limit slide; The top load-bearing telescopic rod includes an upper rod shell and a lower rod shell, the upper rod shell and the lower rod shell are in docking contact, a partition plate is provided at the end of the upper rod shell, an insertion rod is provided in the upper rod shell, the upper end of the insertion rod is fixed to the upper rod shell, and the lower end of the insertion rod is inserted into the lower rod shell, a limiting sleeve is provided in the lower rod shell, the insertion rod is inserted into the limiting sleeve, a return spring is provided on the outer sleeve of the limiting sleeve, one end of the return spring is fixed to the lower rod shell, and the other end of the return spring is fixed to the partition plate.

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