Tower base of wind generating set

Abstract

The utility model discloses a wind generating set tower base which comprises a tower footing platform and a base cover, a positioning ring matched with the base cover is fixedly arranged in the tower footing platform so as to form a circular-truncated-cone-shaped adjusting area on the tower footing platform, the adjusting area is provided with a fine adjustment assembly matched with a tower barrel, and the fine adjustment assembly is provided with a fine adjustment groove. The fine adjustment assembly comprises three fine adjustment units, the three fine adjustment units are equally arranged in the circumferential direction of the adjustment area, an insertion hole matched with a tower drum is formed in the base cover, and during installation, the tower drum is inserted from the insertion hole to be matched with the fine adjustment assembly. According to the base, the fine adjustment assembly is modularly improved and divided into the bearing base, the adjusting block and the fine adjustment air cylinder, so that the problem that installation and transportation are inconvenient due to the fact that the size of the base is too large can be effectively solved, and after the base is assembled, fine adjustment can be actively conducted on cooperation of the bearing base and the tower drum through the fine adjustment air cylinder; and the use stability can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation, in particular to a tower base of a wind power generator set. Background Art

[0002] The tower base of a wind turbine generator set carries the entire supporting tower and the generator set, so it is required to have a high bearing capacity during design. In addition, because the tower will be subjected to high lateral shear force due to the lateral wind during wind power generation, for the stability of the entire generator set, the tower base is required to have not only longitudinal bearing capacity for the tower tube, but also a certain lateral shock absorbing capacity. Moreover, when the tower is used for a long time, this requires the tower base to have a certain self-adjustment ability. As a result, the volume of the overall base will be larger, which is inconvenient to install and transport. Utility Model Content

[0003] In order to overcome the defects of the prior art, the technical problem to be solved by the utility model is to propose a wind turbine tower base, by adopting a modular idea, the entire adjustment mechanism is modularized, and the assembly, production and transportation of the base are convenient.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a wind turbine tower base, including a tower base platform and a base cover, wherein a positioning ring matched with the base cover is fixedly arranged inside the tower base platform to form a truncated cone-shaped adjustment area on the tower base platform, wherein the adjustment area is provided with a fine-tuning component matched with the tower, wherein the fine-tuning component includes three fine-tuning units, and the three fine-tuning units are equally arranged along the circumference of the adjustment area, and a plug-in hole matched with the tower is provided on the base cover, and during installation, the tower is inserted from the plug-in hole to match with the fine-tuning component; specifically, a wedge-shaped section is arranged at the insertion end of the tower, and the fine-tuning unit includes a bearing seat and an adjustment block arranged radially along the tower base platform and a fine-tuning cylinder, one side of the bearing seat is provided with a fine-tuning groove that cooperates with the adjusting block, and the other side is provided with an arc surface that cooperates with the wedge-shaped section of the tower insertion end, the fine-tuning groove and the adjusting block are slidably connected, and the cross-section of the adjusting block is a right-angled trapezoid, which is convenient for the fine-tuning cylinder to use the adjusting block to support and adjust the tower. After the tower is inserted, the surface of the wedge-shaped section of the tower insertion end is against the arc surface of the bearing seat; the power output end of the fine-tuning cylinder is fixedly connected with the adjusting block, and a positioning block is provided at the other end, and a positioning groove that cooperates with the positioning block is opened on the positioning ring. During assembly, the positioning block is inserted into the positioning groove.

[0006] After installation and assembly, the tower needs to be inserted into the plug hole. In order to ensure accurate and good matching of the tower and the bearing seat, an auxiliary block that cooperates with the tower is also provided on the top of the bearing seat. The auxiliary block and the bearing seat are integrally formed. When the tower is assembled, the inner wall of the auxiliary block is in contact with the wall of the tower.

[0007] During use, considering the firmness problem caused by the limited thickness of the base cover, the base cover needs to be supported to a certain extent. A support groove is also opened on the tower base platform between two adjacent fine-tuning units, and a support block is inserted into the support groove. When installed, the inner surface of the base cover is against the top of the support block.

[0008] After the base has a certain self-adjustment ability through the fine-tuning component, in order to improve the shock absorption ability of the entire wind turbine when in use, a shock absorption platform is also provided on the top of the tower base, and the shock absorption platform is provided with a shock absorption hole that matches the tower tube. After the tower tube is inserted, the surface of the shock absorption hole and the wall of the tower tube are in contact, and the bottom of the shock absorption platform and the top of the tower base are against each other. A shock absorption cavity is provided in the shock absorption platform, and a liquid filling port is provided on the top of the shock absorption platform, so that water can be added to the shock absorption cavity from the liquid filling port after assembly. The stacked tower design can effectively absorb the energy during swinging and vibration and improve the shock absorption ability.

[0009] The beneficial effects of the utility model are:

[0010] In this case, the fine-tuning components are improved through modularization, and are divided into a bearing seat, an adjustment block and a fine-tuning cylinder. This can effectively solve the problem of inconvenience in installation and transportation caused by the large size of the base. After assembly, the base of this case can also actively fine-tune the coordination between the bearing seat and the tower through the fine-tuning cylinder, which can effectively improve the stability during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of a wind turbine tower base provided in a specific embodiment of the utility model;

[0012] Figure 2 It is a schematic diagram of the internal structure of a wind turbine tower base provided in a specific embodiment of the utility model;

[0013] Figure 3 It is a schematic diagram of the principle of a tower base of a wind turbine generator set provided in a specific embodiment of the utility model;

[0014] Figure 4 It is a top view of a tower base platform provided in a specific embodiment of the utility model;

[0015] Figure 5It is a structural schematic diagram of a bearing seat provided in a specific embodiment of the utility model;

[0016] In the figure:

[0017] 1. Tower base platform; 2. Base cover; 4. Tower; 11. Positioning ring; 10. Adjustment area; 101. Fine-tuning assembly; 12. Fine-tuning unit; 21. Plug-in hole; 121. Bearing seat; 122. Adjustment block; 123. Fine-tuning cylinder; 1211. Fine-tuning groove; 1221. Positioning block; 111. Positioning groove; 1212. Auxiliary block; 13. Support groove; 131. Support block; 3. Shock-absorbing platform; 31. Shock-absorbing hole; 32. Shock-absorbing cavity; 33. Liquid filling port. DETAILED DESCRIPTION

[0018] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0019] As shown in the figure, a tower base of a wind turbine generator set includes a tower base platform 1 and a base cover 2. A positioning ring 11 that cooperates with the base cover 2 is fixedly provided on the tower base platform 1 to form a truncated cone-shaped adjustment area 10 on the tower base platform 1. The adjustment area 10 is provided with a fine-tuning component 101 that cooperates with the tower 4. The fine-tuning component 101 includes three fine-tuning units 12. The three fine-tuning units 12 are equally divided along the circumference of the adjustment area 10. A plug-in hole 21 that cooperates with the tower 4 is opened on the base cover 2. During installation, the tower 4 is inserted from the plug-in hole 21 to cooperate with the fine-tuning component 101. By modularizing the adjustment mechanism, the entire self-adjusting structure fine-tuning component 101 is divided into three fine-tuning units 12, which is convenient for the prefabrication of various parts in the early stage, thus greatly reducing the volume of the prefabricated parts of each part, so as to facilitate the later installation and transportation; specifically, a wedge-shaped section is provided at the insertion end of the tower 4, and the fine-tuning unit 12 includes a bearing seat 121, an adjustment block 122 and a fine-tuning cylinder 123 arranged radially along the tower base platform 1, a fine-tuning groove 1211 matched with the adjustment block 122 is provided on one side of the bearing seat 121, and an arc surface matched with the wedge-shaped section of the insertion end of the tower 4 is provided on the other side, the fine-tuning groove 1211 and the adjustment block 122 are slidably connected, and after the tower 4 is inserted, the surface of the wedge-shaped section of the insertion end of the tower 4 is against the arc surface of the bearing seat 121; further, the power output end of the fine-tuning cylinder 123 is fixedly connected with the adjustment block 122, and a positioning block 1221 is provided at the other end, and a positioning ring 11 is provided with a positioning block 1221 The positioning groove 111 is matched. During assembly, the positioning block 1221 is inserted into the positioning groove 111. In this way, during assembly, the cylinder is first assembled using the positioning groove 111, and then the adjustment block 122 and the bearing seat 121 are installed in the adjustment area 10 in sequence along the radial direction of the tower base platform 1. At this point, the installation of one fine-tuning unit 12 is completed, and then three fine-tuning units 12 are installed in sequence along the circumference of the adjustment area 10 in the above order. Then, the base cover 2 and the tower base platform 1 are assembled and fixed, and finally further inserted from the plug hole 21. At the same time, an external controller (not shown) is used to control the fine-tuning cylinder 123 so that the wedge-shaped segment surface of the insertion end of the tower 4 is fully offset against the arc surface of the bearing seat 121, so as to complete the bearing of the tower 4. In this way, through the fine-tuning component 101, a certain self-fine-tuning ability can be played in the process of the tower 4 bearing the longitudinal bearing capacity and the lateral shear force, which is beneficial to the use of the entire wind power equipment and the stability of the entire equipment is also higher.

[0020] Furthermore, in order to ensure the stability of the fine-tuning cylinder 123 when adjusting with the adjustment block 122, the cross-section of the adjustment block 122 is a right-angled trapezoid; and at the same time, in order to ensure the accurate insertion of the tower 4, an auxiliary block 1212 cooperating with the tower 4 is also provided on the top of the bearing seat 121. The auxiliary block 1212 and the bearing seat 121 are integrally formed. When the tower 4 is assembled, the inner wall of the auxiliary block 1212 is in contact with the wall of the tower 4, so that the auxiliary blocks 1212 of the three bearing seats 121 can cooperate with each other, which can better play the role of guiding during insertion and limiting during later adjustment.

[0021] Preferably, in order to enhance the firmness of the tower base as a whole, a support groove 13 is further provided on the tower base platform 1 between two adjacent fine-tuning units 12, and a support block 131 is inserted into the support groove 13. When installed, the inner surface of the base cover 2 abuts against the top of the support block 131; thus, the support block 131 can be used to

[0022] Preferably, in order to enhance the shock-absorbing capacity of the entire base, a shock-absorbing platform 3 is also provided on the top of the tower base, and a shock-absorbing hole 31 is opened on the shock-absorbing platform 3 to cooperate with the tower 4. After the tower 4 is inserted, the surface of the shock-absorbing hole 31 is in contact with the wall of the tower 4, and the bottom of the shock-absorbing platform 3 is against the top of the tower base. A shock-absorbing cavity 32 is opened in the shock-absorbing platform 3, and a liquid filling port 33 is provided on the top of the shock-absorbing platform 3 so that water can be added to the shock-absorbing cavity 32 from the liquid filling port 33 after assembly; in this way, when the tower is swung due to the lateral shear force, the shock-absorbing platform 3 can be used to absorb part of the energy during the swing, thereby improving the shock-absorbing effect of the base.

[0023] The present invention is described by preferred embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. The present invention is not limited to the specific embodiments disclosed herein, and other embodiments falling within the claims of this application are within the scope of protection of the present invention.

Claims

1. A wind turbine tower base, characterized in that: The tower base platform (1) comprises a tower base platform (1) and a base cover (2); a positioning ring (11) cooperating with the base cover (2) is fixedly provided inside the tower base platform (1) to form a truncated cone-shaped adjustment area (10) on the tower base platform (1); the adjustment area (10) is provided with a fine adjustment component (101) cooperating with a tower; the fine adjustment component (101) comprises three fine adjustment units (12); the three fine adjustment units (12) are equally spaced along the circumference of the adjustment area (10); a plug-in hole (21) cooperating with the tower is provided on the base cover (2); during installation, the tower is inserted through the plug-in hole (21) to cooperate with the fine adjustment component (101).

2. A wind turbine tower base according to claim 1, characterized in that: A wedge-shaped segment is provided at the tower insertion end, the fine-tuning unit (12) comprises a bearing seat (121), an adjustment block (122) and a fine-tuning cylinder (123) radially arranged along the tower base platform (1), one side of the bearing seat (121) is provided with a fine-tuning groove (1211) that cooperates with the adjustment block (122), and the other side is provided with an arc surface that cooperates with the wedge-shaped segment at the tower insertion end, the fine-tuning groove (1211) and the adjustment block (122) are slidably connected, and after the tower is inserted, the surface of the wedge-shaped segment at the tower insertion end abuts against the arc surface of the bearing seat (121); The power output end of the fine-tuning cylinder (123) is fixedly connected to the adjustment block (122), and the other end is provided with a positioning block (1221). The positioning ring (11) is provided with a positioning groove (111) that matches the positioning block (1221). During assembly, the positioning block (1221) is inserted into the positioning groove (111).

3. A wind turbine tower base according to claim 2, characterized in that The cross section of the regulating block (122) is a right-angled trapezoid.

4. A wind turbine tower base according to claim 2, characterized in that: An auxiliary block (1212) cooperating with the tower is also provided on the top of the bearing seat (121); the auxiliary block (1212) and the bearing seat (121) are integrally formed; when the tower is assembled, the inner wall of the auxiliary block (1212) is in contact with the wall of the tower.

5. The wind turbine tower base according to claim 1, characterized in that: A support groove (13) is also provided on the tower base platform (1) between two adjacent fine-tuning units (12), and a support block (131) is inserted into the support groove (13). During installation, the inner surface of the base cover (2) abuts against the top of the support block (131).

6. A wind turbine tower base according to claim 1, characterized in that: A shock absorbing platform (3) is also provided at the top of the tower base. The shock absorbing platform (3) is provided with a shock absorbing hole (31) that matches the tower tube. After the tower tube is inserted, the surface of the shock absorbing hole (31) is in contact with the wall of the tower tube, the bottom of the shock absorbing platform (3) is in contact with the top of the tower base, a shock absorbing cavity (32) is provided in the shock absorbing platform (3), and a liquid filling port (33) is provided at the top of the shock absorbing platform (3) so that water can be added to the shock absorbing cavity (32) from the liquid filling port (33) after assembly.

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