Centering adjusting device for high-speed shaft of wind turbine generator

Abstract

The utility model relates to the technical field of wind turbine generator shaft adjustment, in particular to a wind turbine generator high-speed shaft centering adjustment device which comprises an installation base, a gear box is installed on the top of the installation base, a rotatable rotating shaft is inserted into the side face of the gear box in a penetrating mode, and two positioning rods are installed at the two ends of the top of the installation base respectively. Fixing assemblies connected with the corresponding positioning rods are installed at the corners of the bottoms of the two sides of the gearbox, tooth grooves are formed in the positions, located on the positioning rods, of the top of the mounting base, the four fixing assemblies are connected with the corresponding tooth grooves in a clamped mode, and supporting plates are installed on the two sides of the gearbox; a first adjusting set and a second adjusting set are installed on the top of the installation base and located below the two supporting plates respectively, the positions of the Y axis and the Z axis of the gearbox can be adjusted through proper adjustment of the first adjusting set and the second adjusting set, and therefore the position of a rotating shaft on the gearbox can be adjusted; and therefore, quick centering adjustment of the rotating shaft can be realized.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine shaft adjustment technology, and in particular to a high-speed shaft alignment adjustment device for wind turbines. Background Technology

[0002] As the core equipment of a wind power generation system, wind turbines drive the rotor to rotate using wind power and efficiently convert wind energy into electrical energy through the principle of electromagnetic induction. In the field of wind power generation, the precise alignment of the high-speed shaft of the wind turbine is crucial. This is not only the key to ensuring stable operation of the unit and improving power generation efficiency, but also a core element in extending the service life of the equipment. With the increasing maturity of wind power equipment technology, laser alignment instruments have become the mainstream measurement tool for adjusting the high-speed shaft alignment of wind turbines. Through the high efficiency of the transmitter, receiver and data processing system, it can achieve high-precision detection of shaft deviation, providing reliable data support for subsequent adjustment work.

[0003] However, during the operation and maintenance of wind turbine generator sets, the alignment adjustment of the gearbox rotating shaft and the high-speed shaft mainly focuses on the Y-axis (vertical direction) and Z-axis (horizontal direction). Traditional adjustment devices adopt a distributed drive structure. When adjusting the Y-axis and Z-axis, it is necessary to operate the drive equipment in different directions to push the gearbox. This design not only significantly increases the manufacturing cost of the equipment, but also reduces the efficiency of high-speed shaft alignment calibration. Therefore, this application proposes a wind turbine generator high-speed shaft alignment adjustment device. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a high-speed shaft alignment adjustment device for wind turbine units to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-speed shaft alignment adjustment device for a wind turbine, comprising a mounting base, a gearbox mounted on the top of the mounting base, and a rotatable rotating shaft inserted through the side of the gearbox. Two positioning rods are mounted at both ends of the top of the mounting base, and fixing components connected to the corresponding positioning rods are mounted at the corners of the bottom sides of the gearbox. Gear grooves are formed on the top of the mounting base at the positioning rods, and four fixing components are respectively engaged with the corresponding gear grooves. Support plates are mounted on both sides of the gearbox, and a first adjustment group and a second adjustment group are respectively mounted on the top of the mounting base below the two support plates, and the first adjustment group and the second adjustment group are respectively connected to the corresponding support plates.

[0006] Optionally, the fixing components include a positioning block, a positioning frame, and a nut. The positioning block is installed at the corner of the bottom side of the gearbox, and a through slot is provided on the positioning block. The slot on the positioning block is fitted onto the corresponding positioning rod. The positioning frame is set as an inverted U-shape, and a through opening is provided at the center of the top of the positioning frame. The positioning frame is mounted on the positioning block, and the through opening on the positioning frame is fitted onto the corresponding positioning rod. Teeth that are adapted to the gear groove are provided at the bottom of both ends of the positioning frame, and the teeth at the bottom of both ends of the positioning frame are engaged with the corresponding gear groove. A nut is threaded onto the positioning rod and abuts against the top of the positioning frame.

[0007] Optionally, multiple gaskets are stacked between the bottom of the positioning block and the top of the mounting base, each gasket having a notch on one side, and each notch on the gasket fitting onto the positioning rod.

[0008] Optionally, the top of the positioning block and both sides of the slot are provided with rod slots, and the bottom ends of the horizontal part of the positioning frame are fixedly connected with insert rods, and the two insert rods are respectively movably inserted into the two rod slots on the corresponding positioning block.

[0009] Optionally, the first adjustment group includes two hydraulic rods and two support blocks. The two hydraulic rods are mounted on the mounting base, and the two support blocks are respectively mounted on the telescopic ends of the two hydraulic rods. The top of the support block is set as a slope one, and grooves are opened at both ends of the bottom of the two support plates. The top of the two grooves is set as a slope two, and the inclination of the slope two is adapted to the inclination of the slope one. The top of the support block is set with a storage groove, and multiple rotatable rollers are installed at equal intervals in the storage groove. The top of each roller extends out of the storage groove and contacts the slope two at the top of the groove.

[0010] Optionally, the second adjustment group has the same structure as the first adjustment group, and the second adjustment group and the first adjustment group are symmetrically distributed on both sides of the gearbox.

[0011] The beneficial effects of this utility model are:

[0012] By controlling the extension and retraction of the hydraulic rods in the first and second adjustment groups, the position adjustment on the Y and Z axes of the gearbox can be achieved;

[0013] By controlling the extension of the hydraulic rod in the first adjustment group and simultaneously controlling the retraction of the hydraulic rod in the second adjustment group (or the hydraulic rod in the first adjustment group retracts and the hydraulic rod in the second adjustment group extends), the support plate on one side of the gearbox is squeezed by the support block at the top of the hydraulic rod in the first adjustment group. In conjunction with the second adjustment group on the other side of the gearbox, the gearbox can move in the Y-axis direction, thereby realizing the adjustment of the rotation axis in the Y-axis direction.

[0014] When the gearbox moves in the Y-axis direction, the slots on the bottom positioning blocks on both sides of the gearbox will move on the positioning rod. After adjustment, the positioning frame is placed on the positioning rod and positioning block, and the teeth on both sides of the bottom are engaged with the corresponding tooth grooves. Finally, the positioning frame is fixed in position by connecting the nut to the positioning rod. The engagement of the positioning frame with the tooth grooves can prevent the fixed block from moving in the Y-axis, thereby improving the stability of the gearbox after adjustment.

[0015] By controlling the hydraulic rods in the first and second adjustment groups to extend and retract synchronously, the support blocks on the extension and retraction ends of the hydraulic rods push the support plates to move, thereby lifting the support plates on both sides of the gearbox, thus adjusting the position of the gearbox on the Z-axis, and thus realizing the adjustment of the rotation axis in the Z-axis direction;

[0016] After the gearbox moves in the Z-axis direction, a gap is created between the bottom of the positioning block and the top of the mounting base. Then, an appropriate number of shims are placed between them according to the size of the gap. By adding different numbers of shims, the height of the gearbox Z-axis can be adjusted. Attached Figure Description

[0017] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the connection between the mounting base and the fixing component of this utility model;

[0020] Figure 3 This is an enlarged structural diagram of point A in this utility model;

[0021] Figure 4 This is a schematic diagram of the connection between the hydraulic rod and the support block of this utility model;

[0022] Figure 5 This is a schematic diagram of the positioning block and positioning frame of this utility model;

[0023] Figure 6 This is a cross-sectional structural diagram of the support plate of this utility model;

[0024] In the diagram: 1. Mounting base; 11. Positioning rod; 12. Gear groove; 2. Gearbox; 21. Rotating shaft; 22. Support plate; 221. Groove; 3. Fixing assembly; 31. Positioning block; 32. Slot; 33. Positioning frame; 331. Tooth; 34. Through port; 35. Nut; 36. Washer; 37. Rod groove; 38. Insert rod; 4. Hydraulic rod; 5. Support block; 51. Roller. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] Please see Figures 1-6 This utility model provides a technical solution: a high-speed shaft alignment adjustment device for a wind turbine, including a mounting base 1, a gearbox 2 mounted on the top of the mounting base 1, and a rotatable rotating shaft 21 inserted through the side of the gearbox 2. Two positioning rods 11 are mounted at both ends of the top of the mounting base 1. Fixing components 3 connected to the corresponding positioning rods 11 are mounted at the corners of the bottom of both sides of the gearbox 2. Gear grooves 12 are opened on the top of the mounting base 1 at the positioning rods 11. The four fixing components 3 are respectively engaged with the corresponding gear grooves 12. Support plates 22 are mounted on both sides of the gearbox 2. A first adjustment group and a second adjustment group are respectively mounted on the top of the mounting base 1 and below the two support plates 22. The first adjustment group and the second adjustment group are respectively connected to the corresponding support plates 22. Through the connection between the fixing components 3 and the positioning rods 11, the gearbox 2 can be fixed on the top of the mounting base 1.

[0027] like Figure 2 , Figure 3 and Figure 5 As shown, the fixing component 3 includes a positioning block 31, a positioning bracket 33, and a nut 35. The positioning block 31 is installed at the corner of the bottom side of the gearbox 2, and a through slot 32 is provided on the positioning block 31. The slot 32 on the positioning block 31 is fitted onto the corresponding positioning rod 11. The positioning bracket 33 is set in an inverted U-shape, and a through opening 34 is provided at the center of the top of the positioning bracket 33. The positioning bracket 33 is mounted on the positioning block 31, and the through opening 34 on the positioning bracket 33 is fitted onto the corresponding positioning rod 11. At the bottom of both ends of the positioning bracket 33... Each is equipped with teeth 331 that are compatible with the tooth groove 12, and the teeth 331 at the bottom of both ends of the positioning frame 33 are engaged with the corresponding tooth groove 12. The positioning rod 11 is threaded with a nut 35 that abuts against the top of the positioning frame 33. Through the cooperation of the positioning block 31, the positioning frame 33 and the nut 35, the teeth 331 at the bottom of both ends of the positioning frame 33 are engaged with the tooth groove 12 on the mounting base 1 to achieve precise positioning and firm fixation of the gearbox 2 on the mounting base 1, prevent the gearbox 2 from shifting during operation and ensure the stability of the centering adjustment effect.

[0028] like Figure 2 and Figure 3As shown, multiple shims 36 are stacked between the bottom of the positioning block 31 and the top of the mounting base 1. Each shim 36 has a notch on one side, and the notch on each shim 36 is fitted onto the positioning rod 11. The shims 36 are introduced into the bottom of the positioning block 31 in the fixing assembly 3. The height of the gearbox 2 can be adjusted by increasing or decreasing the number of shims 36 according to the actual installation requirements, so as to achieve flexible fine adjustment of the installation height of the gearbox 2, further improve the adaptability of the device to different installation conditions, and ensure the centering accuracy of the rotating shaft 21.

[0029] like Figure 3 and Figure 5 As shown, the top of the positioning block 31 and both sides of the slot 32 are provided with rod slots 37. The bottom ends of the horizontal part of the positioning frame 33 are fixedly connected with insert rods 38, and the two insert rods 38 are respectively movably inserted into the two rod slots 37 on the corresponding positioning block 31. The design of the rod slots 37 and insert rods 38 between the positioning block 31 and the positioning frame 33 enhances the connection stability between the components of the fixing assembly 3, prevents the positioning frame 33 from shifting or shaking during installation and operation, ensures the reliability of the fixing assembly 3, and thus improves the accuracy of the centering adjustment of the entire device.

[0030] like Figure 1 , Figure 4 and Figure 6 As shown, the first adjustment group includes two hydraulic rods 4 and two support blocks 5. The two hydraulic rods 4 are mounted on the mounting base 1, and the two support blocks 5 are respectively mounted on the telescopic ends of the two hydraulic rods 4. The top of the support block 5 is set as an inclined surface one. Both ends of the bottom of the two support plates 22 are provided with grooves 221. The top of the two grooves 221 is set as an inclined surface two, and the inclination of the inclined surface two matches the inclination of the inclined surface one. The top of the support block 5 is provided with a storage groove, and multiple rotatable rollers 51 are installed at equal intervals in the storage groove. The top of each roller 51 is... Both ends extend out of the storage slot and contact the inclined surface at the top of the groove 221. The first adjustment group adopts a combination of hydraulic rod 4, inclined support block 5 and roller 51. The hydraulic rod 4 provides power to adjust the height of the support block 5. The cooperation of the inclined surface at the top of the support block 5 in the first and second adjustment groups can realize the fine adjustment of the gearbox 2 in the Y-axis direction. The setting of the roller 51 reduces the friction between the top of the support block 5 and the bottom groove 221 of the support plate 22, making the adjustment process smoother and more flexible, and enabling precise and efficient adjustment of the position of the gearbox 2.

[0031] like Figure 1 As shown, the second adjustment group has the same structure as the first adjustment group, and the second adjustment group and the first adjustment group are symmetrically distributed on both sides of the gearbox 2. The second adjustment group has the same structure as the first adjustment group and is symmetrically distributed, which realizes the synchronous and balanced adjustment of both sides of the gearbox 2 and ensures the stability of the gearbox 2 during the adjustment process.

[0032] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-speed shaft alignment adjustment device for a wind turbine, comprising a mounting base (1), characterized in that, A gearbox (2) is installed on the top of the mounting base (1), and a rotatable rotating shaft (21) is inserted through the side of the gearbox (2). Two positioning rods (11) are installed at both ends of the top of the mounting base (1). Fixing components (3) connected to the corresponding positioning rods (11) are installed at the corners of the bottom of both sides of the gearbox (2). Gear grooves (12) are opened on the top of the mounting base (1) and at the positioning rods (11). The four fixing components (3) are respectively engaged with the corresponding gear grooves (12). Support plates (22) are installed on both sides of the gearbox (2). A first adjustment group and a second adjustment group are respectively installed on the top of the mounting base (1) and below the two support plates (22). The first adjustment group and the second adjustment group are respectively connected to the corresponding support plates (22).

2. The high-speed shaft alignment adjustment device for a wind turbine generator according to claim 1, characterized in that, The fixing component (3) includes a positioning block (31), a positioning frame (33), and a nut (35). The positioning block (31) is installed at the corner of the bottom side of the gearbox (2), and a through slot (32) is provided on the positioning block (31). The slot (32) on the positioning block (31) is fitted onto the corresponding positioning rod (11). The positioning frame (33) is set as an inverted U-shape, and a through opening (34) is provided at the center of the top of the positioning frame (33). The positioning frame (33) is mounted on the positioning block (31), and the through (34) on the positioning frame (33) is fitted onto the corresponding positioning rod (11). The bottom of both ends of the positioning frame (33) is provided with teeth (331) that are compatible with the tooth groove (12), and the teeth (331) at the bottom of both ends of the positioning frame (33) are engaged with the corresponding tooth groove (12). The positioning rod (11) is threaded with a nut (35) that abuts against the top of the positioning frame (33).

3. The high-speed shaft alignment adjustment device for a wind turbine generator according to claim 2, characterized in that, Multiple gaskets (36) are stacked between the bottom of the positioning block (31) and the top of the mounting base (1). Each gasket (36) has a notch on one side, and the notch on each gasket (36) is fitted onto the positioning rod (11).

4. A high-speed shaft alignment adjustment device for a wind turbine according to claim 2, characterized in that, The top of the positioning block (31) and both sides of the slot (32) are provided with rod slots (37). The bottom ends of the horizontal part of the positioning frame (33) are fixedly connected with insert rods (38), and the two insert rods (38) are respectively movably inserted into the two rod slots (37) on the corresponding positioning block (31).

5. A high-speed shaft alignment adjustment device for a wind turbine generator according to claim 1, characterized in that, The first adjustment group includes two hydraulic rods (4) and two support blocks (5). The two hydraulic rods (4) are mounted on the mounting base (1). The two support blocks (5) are respectively mounted on the telescopic ends of the two hydraulic rods (4). The top of the support block (5) is set as a slope one. The bottom ends of the two support plates (22) are provided with grooves (221). The top of the two grooves (221) is set as a slope two. The inclination of the slope two is adapted to the inclination of the slope one. The top of the support block (5) is provided with a storage groove. Multiple rotatable rollers (51) are installed at equal intervals in the storage groove. The top of each roller (51) extends out of the storage groove and contacts the slope two at the top of the groove (221).

6. A high-speed shaft alignment adjustment device for a wind turbine generator according to claim 5, characterized in that, The second adjustment group has the same structure as the first adjustment group, and the second adjustment group and the first adjustment group are symmetrically distributed on both sides of the gearbox (2).

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