Elastic supporting support for gear box of wind generating set

Abstract

The utility model provides an elastic supporting support for a gearbox of a wind generating set, and relates to the technical field of wind power generation equipment. The support comprises a first support and a second support which are arranged in a split mode, a first elastic supporting fixing hole and a first weight reducing groove are formed in the opposite sides of the first support, and a second elastic supporting fixing hole and a second weight reducing groove are formed in the opposite sides of the second support. The first elastic support fixing hole and the second elastic support fixing hole are butted to form a round hole after the first support and the second support are connected; a cross beam and first reinforcing ribs are arranged in the first weight reduction groove, the cross beam extends in the axial direction of the round hole, the first reinforcing ribs are arranged on the two opposite sides of the cross beam respectively, and the first reinforcing ribs extend in the radial direction of the round hole; longitudinal beams and second reinforcing ribs are arranged in the second weight reduction grooves, the longitudinal beams are perpendicular to the transverse beams in the extending direction, the second reinforcing ribs are arranged on the two opposite sides of the longitudinal beams, and the extending direction of the second reinforcing ribs is perpendicular to the extending direction of the first reinforcing ribs, so that it is guaranteed that the support meets the strength requirement while the material consumption of the support is reduced; the material utilization rate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation equipment, in particular to an elastic support bracket for a gear box of a wind power generator set. Background Art

[0002] As a core component of the wind turbine's transmission system, the wind turbine gearbox elastic support mount secures the wind turbine gearbox to the main nacelle base via a connecting shaft. It primarily withstands the impact loads generated by the gearbox's torque arm swinging around the main shaft. With the increasing demand for cost reduction in wind turbines, the demand for lightweight wind turbine gearbox elastic support mounts is becoming increasingly urgent.

[0003] The design of the existing wind turbine gearbox elastic support bracket, as a core component of the wind turbine, mainly relies on the experience of designers, and usually has the problem of redundant rigidity and strength, resulting in low material utilization. Utility Model Content

[0004] The utility model provides an elastic support bracket for a gear box of a wind generator set, which is used to solve the problem in the prior art that the elastic support bracket for the gear box of a wind generator set has redundant rigidity, resulting in low material utilization.

[0005] The utility model provides an elastic support support for a gearbox of a wind turbine generator set, comprising a first support and a second support which are separately arranged. A first elastic support fixing hole and a first weight-reducing groove are provided on opposite sides of the first support, and a second elastic support fixing hole and a second weight-reducing groove are provided on opposite sides of the second support. The first elastic support fixing hole and the second elastic support fixing hole are butted together to form a circular hole after the first support and the second support are connected.

[0006] A crossbeam and a first reinforcing rib are provided in the first weight-reducing groove, the crossbeam extending along the axial direction of the circular hole, and the first reinforcing ribs are respectively provided on opposite sides of the crossbeam, and the first reinforcing ribs extend along the radial direction of the circular hole;

[0007] A longitudinal beam and a second reinforcing rib are provided in the second weight-reducing groove. The extension directions of the longitudinal beam and the cross beam are perpendicular to each other. The second reinforcing ribs are provided on opposite sides of the longitudinal beam. The extension direction of the second reinforcing rib is perpendicular to the extension direction of the first reinforcing rib.

[0008] According to the elastic support bracket for the gear box of a wind turbine generator set provided by the utility model, third weight-reducing grooves are respectively provided on opposite sides of the longitudinal beam.

[0009] According to an elastic support bracket for a gearbox of a wind turbine generator set provided by the present invention, the longitudinal beam is provided with a fourth weight-reducing groove, and the notch of the fourth weight-reducing groove faces the end surface of the second bracket away from the first bracket.

[0010] According to the elastic support bracket for a gearbox of a wind turbine generator set provided by the present invention, the bottom shape of the first weight-reducing groove is consistent with the arc-shaped cylindrical shape of the first elastic support fixing hole; and / or,

[0011] The shape of the bottom of the second weight-reducing groove is consistent with the arc-shaped cylindrical shape of the second elastic support fixing hole.

[0012] According to an elastic support mount for a gearbox of a wind turbine generator set provided by the present invention, the first weight-reducing groove is divided into a first groove body and a second groove body by the crossbeam, and a plurality of the first reinforcing ribs are respectively provided in the first groove body and the second groove body.

[0013] According to an elastic support support for a gearbox of a wind turbine generator set provided by the utility model, the first support and the second support are connected by a stud bolt, wherein the stud bolt includes a screw, a first nut and a second nut, the first support is provided with a first screw hole, the second support is provided with a second screw hole, the screw is passed through the first screw hole and the second screw hole, the first nut is threadedly connected to the portion of the screw extending out of the first screw hole, and the second nut is threadedly connected to the portion of the screw extending out of the second screw hole.

[0014] According to the utility model, an elastic support support for a gearbox of a wind turbine generator set further includes a pad, two of which are respectively arranged on opposite sides of the first weight-reducing groove, and the first nut presses the pad onto the end surface of the first support.

[0015] According to the elastic support bracket of the gear box of a wind turbine generator set provided by the utility model, a washer is provided between the pad and the first nut.

[0016] According to an elastic support support for a gearbox of a wind turbine generator set provided by the utility model, the first support and the second support are respectively provided with a lifting hole; and / or, the first support is provided with a first positioning hole, and the second support is provided with a second positioning hole, and a positioning bolt is passed through the first positioning hole and the corresponding second positioning hole to connect the first support and the second support.

[0017] According to the elastic support bracket of the gear box of a wind turbine generator set provided by the utility model, a positioning washer is provided between the positioning bolt and the first bracket.

[0018] The utility model provides an elastic support support for the gearbox of a wind turbine generator set, wherein the first support is provided with a first weight-reducing groove, the second support is provided with a second weight-reducing groove, a cross beam and a first reinforcing rib are arranged in the first weight-reducing groove, and a longitudinal beam and a second reinforcing rib are arranged in the second weight-reducing groove, thereby reducing the material consumption of the first support and the second support while ensuring that the strength of the first support and the second support meets the requirements, thereby improving material utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a three-dimensional diagram of the elastic support bracket of the gear box of the wind turbine generator set provided by the present invention.

[0021] Figure 2 It is a three-dimensional diagram of the first support provided by the utility model.

[0022] Figure 3 It is a three-dimensional diagram of the second support provided by the utility model.

[0023] Figure 4 It is a bottom view of the second support provided by the utility model.

[0024] Figure 5 This is a schematic diagram of the assembly of the wind turbine gearbox elastic support bracket and the wind turbine gearbox provided by the utility model.

[0025] Reference numerals:

[0026] 10. First support; 11. First elastic support fixing hole; 12. First weight-reducing groove; 13. Crossbeam; 14. First reinforcing rib; 15. First screw hole; 16. First positioning hole; 17. First lifting hole; 20. Second support; 21. Second elastic support fixing hole; 22. Second weight-reducing groove; 23. Longitudinal beam; 24. Second reinforcing rib; 25. Third weight-reducing groove; 26. Fourth weight-reducing groove; 27. Second screw hole; 28. Second positioning hole; 29. ​​Second lifting hole; 30. Round hole; 41. Screw; 42. First nut; 43. Second nut; 50. Backing plate; 60. Washer; 61. Positioning bolt; 62. Positioning washer

[0027] 110. Base; 120. Connecting shaft; 130. Torque arm; 140. Baffle; 150. Stud bolt; 160. Gasket; 170. Bushing-type elastic support. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will provide a clear and complete description of the technical solutions of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] The terms "first" and "second" in the specification and claims of this utility model may explicitly or implicitly refer to one or more of these features. In the description of this utility model, unless otherwise specified, "plurality" means two or more. Furthermore, "and / or" in the specification and claims refers to at least one of the connected items, and the character " / " generally indicates an "or" relationship between the connected items.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0031] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0032] The following combination Figures 1-4 The utility model describes an elastic support bracket for a gear box of a wind turbine generator set.

[0033] The present invention provides a wind turbine gearbox elastic support. Figure 1 As shown, it includes a first support 10 and a second support 20 that are separately provided. Figure 2 and Figure 3As shown, the first support 10 is provided with a first elastic support fixing hole 11 and a first weight-reducing groove 12 on the opposite side, and the second support 20 is provided with a second elastic support fixing hole 21 and a second weight-reducing groove 22 on the opposite side. Figure 1 As shown, the first elastic support fixing hole 11 and the second elastic support fixing hole 21 are connected to form a circular hole 30. A crossbeam 13 and a first reinforcing rib 14 are provided in the first weight-reducing groove 12. The crossbeam 13 extends axially along the circular hole 30. First reinforcing ribs 14 are provided on opposite sides of the crossbeam 13. The first reinforcing ribs 14 extend radially along the circular hole 30. A longitudinal beam 23 and a second reinforcing rib 24 are provided in the second weight-reducing groove 22. The longitudinal beam 23 and the crossbeam 13 extend perpendicularly to each other. Second reinforcing ribs 24 are provided on opposite sides of the longitudinal beam 23. The second reinforcing ribs 24 extend perpendicularly to the first reinforcing ribs 14.

[0034] The first elastic support fixing hole 11, the second elastic support fixing hole 21, the first weight-reducing groove 12, and the second weight-reducing groove 22 are all through-grooves. The first elastic support fixing hole 11 extends from one side of the first support 10 to the opposite side, while the second elastic support fixing hole 21 extends from one side of the second support 20 to the opposite side. The first elastic support fixing hole 11 and the second elastic support fixing hole 21 mate to form a circular hole 30. The first weight-reducing groove 12 is located on the side of the first support 10 away from the second support 20, while the second weight-reducing groove 22 is located on the side of the second support 20 away from the first support 10.

[0035] The crossbeam 13 extends axially along the circular hole 30 and is located directly in the center of the first weight-reducing slot 12, dividing the first weight-reducing slot 12 into a left and right portion. The longitudinal beam 23 extends radially along the circular hole 30 and is located directly in the center of the second weight-reducing slot 22, dividing the second weight-reducing slot 22 into a front and rear portion. The top end surface of the crossbeam 13 is flush with the end surface of the first support 10 facing away from the second support 20, while the bottom end surface of the longitudinal beam 23 is flush with the end surface of the second support 20 facing away from the first support 10.

[0036] The embodiment of the present invention provides an elastic support support for the gearbox of a wind turbine generator set, wherein the first support 10 is provided with a first weight-reducing groove 12, and the second support 20 is provided with a second weight-reducing groove 22. A cross beam 13 and a first reinforcing rib 14 are arranged in the first weight-reducing groove 12, and a longitudinal beam 23 and a second reinforcing rib 24 are arranged in the second weight-reducing groove 22, thereby reducing the material usage of the first support 10 and the second support 20 while ensuring that the strength of the first support 10 and the second support 20 meets the requirements, thereby improving material utilization.

[0037] like Figure 1 、 Figure 3 and Figure 4 As shown, third weight-reducing grooves 25 are respectively provided on two opposite sides of the longitudinal beam 23 .

[0038] like Figure 3 As shown, the third weight-reducing groove 25 has a bottom wall, a first side wall, a second side wall, and a third side wall, and the first side wall, the second side wall, and the third side wall are arranged around the circumference of the bottom wall. The first side wall and the third side wall are arranged opposite to each other, and the opposite side of the second side wall is open, and the open end is located at the bottom end face of the longitudinal beam 23. As a result, a gap is formed between the second side wall and the bottom of the second weight-reducing groove 22. The second reinforcing rib 24 extends from the bottom of the second weight-reducing groove 22 to the end of the second side wall and is arranged vertically. The second reinforcing ribs 24 located on both sides of the longitudinal beam 23 are located in corresponding positions.

[0039] The elastic support bracket for the gearbox of the wind turbine generator set provided by the present invention further reduces the material usage of the second bracket 20 by arranging third weight-reducing grooves 25 on opposite sides of the longitudinal beam 23 .

[0040] like Figure 4 As shown, the longitudinal beam 23 is provided with a fourth weight-reducing groove 26 , the notch of which faces the end surface of the second support 20 away from the first support 10 , that is, the notch of the fourth weight-reducing groove 26 faces the contact surface between the second support 20 and the base 110 .

[0041] like Figure 4 As shown, the fourth weight-reducing groove 26 is in the shape of a waist-shaped blind hole. Two fourth weight-reducing grooves 26 are symmetrically provided on the longitudinal beam 23. By providing the fourth weight-reducing grooves 26 on the longitudinal beam 23, the material usage of the second support 20 is further reduced, thereby improving the material utilization rate.

[0042] like Figure 2 and Figure 3 As shown, the bottom shape of the first weight-reducing groove 12 is consistent with the arc-shaped cylindrical shape of the first elastic support fixing hole 11; and / or, the bottom shape of the second weight-reducing groove 22 is consistent with the arc-shaped cylindrical shape of the second elastic support fixing hole 21.

[0043] Compared with the planar groove bottom, the groove bottoms of the first weight-reducing groove 12 and the second weight-reducing groove 22 are both cylindrical and consistent with the curvature of the hole wall of the circular hole 30, so that the thickness of the solid structure part between the groove bottom surface of the first weight-reducing groove 12 and the hole wall of the circular hole 30 is uniform, ensuring the strength of the first support 10 and the second support 20, while reducing the material usage of the first support 10 and the second support 20.

[0044] like Figure 1 and Figure 2 As shown, the first weight-reducing trough 12 is divided into a first trough body and a second trough body by a crossbeam 13 , and a plurality of first reinforcing ribs 14 are respectively provided in the first trough body and the second trough body.

[0045] like Figure 2As shown, three first reinforcing ribs 14 are provided in the first trough body, and three first reinforcing ribs 14 are provided in the second trough body. The first reinforcing ribs 14 in the first trough body and the first reinforcing ribs 14 in the second trough body are provided in correspondence. Specifically, the connection between the first reinforcing ribs 14 and the crossbeam 13 and the connection between the first reinforcing ribs 14 and the groove wall of the first weight-reducing groove 12 are smoothly transitioned through arc surfaces.

[0046] The first support 10 and the second support 20 are fixedly connected by a stud bolt 150. The stud bolt 150 includes a screw rod 41, a first nut 42, and a second nut 43. The first support 10 is provided with a first screw hole 15, and the second support 20 is provided with a second screw hole 27. The screw rod 41 is inserted into the first screw hole 15 and the second screw hole 27. The first nut 42 is threadedly connected to the portion of the screw rod 41 extending from the first screw hole 15, and the second nut 43 is threadedly connected to the portion of the screw rod 41 extending from the second screw hole 27.

[0047] like Figure 2 and Figure 3 As shown, the first support 10 is provided with three first screw holes 15 on opposite sides of the first weight reduction groove 12, and the second support 20 is provided with second screw holes 27 on opposite sides of the second weight reduction groove 22, and the first screw holes 15 and the second screw holes 27 correspond to each other one by one.

[0048] The first support 10 and the second support 20 are respectively provided with a lifting hole. Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, first lifting holes 17 are respectively provided on opposite sides of the first support 10 ; second lifting holes 29 are respectively provided on opposite sides of the second support 20 .

[0049] The first support 10 is provided with a first positioning hole 16, and the second support 20 is provided with a second positioning hole 28. A positioning bolt 61 is passed through the first positioning hole 16 and the corresponding second positioning hole 28 to connect the first support 10 and the second support 20. Optionally, a positioning washer 62 is provided between the positioning bolt 61 and the first support 10.

[0050] like Figure 2 As shown, the first support 10 is provided with two first positioning holes 16, one on each side of the first weight-reducing groove 12. The first positioning holes 16 are staggered relative to the three first screw holes 15 on the same side. The sidewall of the first support 10 is provided with two first lifting holes 17, located on opposite sides of the first support 10. The axes of the first lifting holes 17 are perpendicular to the axes of the first positioning holes 16, providing a mounting position for a lifting ring for the first support 10.

[0051] like Figure 3As shown, the second support 20 is provided with two second positioning holes 28. The two first positioning holes 16 on the first support 10 are arranged corresponding to the two second positioning holes 28 on the second support 20. The side wall of the second support 20 is provided with two second lifting holes 29, which are located on opposite sides of the second support 20. The hole axes of the second lifting holes 29 are perpendicular to the hole axes of the second positioning holes 28, providing a lifting ring installation position for the lifting of the second support 20.

[0052] During assembly, the second support 20 is hoisted onto the wind turbine base 110 through the second hoisting hole 29. Then, the first support 10 is hoisted onto the second support 20 through the first hoisting hole 17, so that the first positioning hole 16 and the second positioning hole 28 are aligned and coaxial. The positioning bolt 61 and positioning washer 62 are inserted between the first positioning hole 16 and the second positioning hole 28 and tightened. At this point, the first screw hole 15 corresponds to the second screw hole 27, the screw rod 41 is inserted into the first screw hole 15 and the second screw hole 27, and the first nut 42 and the second nut 43 are respectively threadedly connected to the opposite ends of the screw rod 41, thereby fixing the first support 10 and the second support 20.

[0053] like Figure 1 As shown, the wind turbine gearbox elastic support further includes pads 50. Two pads 50 are respectively placed on opposite sides of the first weight-reducing groove 12. The first nut 42 presses the pads 50 against the end surface of the first support 10. The pads 50 are steel plates, for example, made of 45 steel.

[0054] To improve the stability of the connection, a washer 60 is provided between the backing plate 50 and the first nut 42. A washer 60 is provided between each first nut 42 and the backing plate 50.

[0055] Optionally, the first support 10 and the second support 20 are cast iron parts. For example, the first support 10 and the second support 20 are both made of QT700-10 high-performance cast iron material.

[0056] The wind turbine gearbox elastic support bracket of the present invention is fixed to the base 110. Figure 5 As shown, the wind turbine gearbox described in the present invention has a connecting shaft 120 and a torque arm 130. Two wind turbine gearbox elastic support brackets are fixedly mounted on the base 110. The torque arm 130 is sandwiched between the two wind turbine gearbox elastic support brackets. The two ends of the connecting shaft 120 are respectively inserted into the circular holes 30 of the two wind turbine gearbox elastic support brackets. Baffles 140 are provided at both ends of the connecting shaft 120. The baffles 140 and the connecting shaft 120 are fixedly connected by studs 150. Gaskets 160 are provided at the ends of the studs 150 and the connecting shaft 120. A bearing-type elastic support 170 is provided between the connecting shaft 120 and the wall of the circular hole 30.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An elastic support for a gearbox of a wind turbine generator set, characterized in that: The invention comprises a first support and a second support which are separately provided, wherein a first elastic support fixing hole and a first weight-reducing groove are provided on opposite sides of the first support, and a second elastic support fixing hole and a second weight-reducing groove are provided on opposite sides of the second support, and the first elastic support fixing hole and the second elastic support fixing hole are butted together to form a circular hole after the first support and the second support are connected; A crossbeam and a first reinforcing rib are provided in the first weight-reducing groove, the crossbeam extends along the axial direction of the circular hole, and the first reinforcing rib extends along the radial direction of the circular hole; A longitudinal beam and a second reinforcing rib are provided in the second weight-reducing groove. The extension directions of the longitudinal beam and the cross beam are perpendicular to each other. The second reinforcing ribs are provided on opposite sides of the longitudinal beam. The extension direction of the second reinforcing rib is perpendicular to the extension direction of the first reinforcing rib.

2. The elastic support for the gearbox of a wind turbine generator set according to claim 1, characterized in that: Third weight-reducing grooves are respectively provided on opposite sides of the longitudinal beam.

3. The elastic support for the gearbox of a wind turbine generator set according to claim 1 or 2, characterized in that: The longitudinal beam is provided with a fourth weight-reducing groove, and the notch of the fourth weight-reducing groove faces the end surface away from the first support.

4. The elastic support for the gearbox of a wind turbine generator set according to claim 1, characterized in that: The bottom shape of the first weight-reducing groove is consistent with the arc-shaped cylindrical shape of the first elastic support fixing hole; and / or, The shape of the bottom of the second weight-reducing groove is consistent with the arc-shaped cylindrical shape of the second elastic support fixing hole.

5. The elastic support for the gearbox of a wind turbine generator set according to claim 1 or 4, characterized in that: The first weight-reducing groove is divided into a first groove body and a second groove body by the crossbeam, and a plurality of the first reinforcing ribs are respectively provided in the first groove body and the second groove body.

6. The elastic support for the gearbox of a wind turbine generator set according to claim 1, characterized in that: The first support and the second support are connected by a stud bolt, wherein the stud bolt includes a screw, a first nut and a second nut, the first support is provided with a first screw hole, the second support is provided with a second screw hole, the screw is passed through the first screw hole and the second screw hole, the first nut is threadedly connected to the part of the screw extending out of the first screw hole, and the second nut is threadedly connected to the part of the screw extending out of the second screw hole.

7. The elastic support for the gearbox of a wind turbine generator set according to claim 6, characterized in that: It also includes a pad, and two of the pads are respectively arranged on opposite sides of the first weight-reducing groove, and the first nut presses the pad onto the end surface of the first support.

8. The elastic support for the gearbox of a wind turbine generator set according to claim 7, characterized in that: A washer is provided between the backing plate and the first nut.

9. The elastic support for the gearbox of a wind turbine generator set according to claim 1, characterized in that: The first support and the second support are respectively provided with a lifting hole, and / or the first support is provided with a first positioning hole, the second support is provided with a second positioning hole, and the positioning bolts are passed through the first positioning hole and the corresponding second positioning hole to connect the first support and the second support.

10. The elastic support for the gearbox of a wind turbine generator set according to claim 9, characterized in that: A positioning washer is provided between the positioning bolt and the first support.

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