Full-automatic hydraulic high-strength positioning tool for wind power bearing

Abstract

The invention discloses a full-automatic hydraulic type high-strength positioning tool for a wind power bearing, and relates to the technical field of bearing installation, the full-automatic hydraulic type high-strength positioning tool comprises a workbench, a hydraulic station and a plurality of clamping mechanisms, the wind power bearing is placed on the workbench, the multiple clamping mechanisms are arranged on the workbench, and the clamping mechanisms are used for clamping and assembling the wind power bearing; the hydraulic station is connected with the multiple clamping mechanisms and provides power for the multiple clamping mechanisms. When the wind power bearing is assembled, the wind power bearing is placed on the workbench, the hydraulic station is used for providing power for the multiple clamping mechanisms, the multiple clamping mechanisms clamp and assemble the wind power bearing at the same time, the clamping mechanisms are hydraulically driven, the clamping pressure is hydraulically controlled, and it is ensured that the pressure can be maintained after hot sleeving and air cooling of the wind power bearing; and meanwhile, the hydraulic station ensures that the oil pressure input at each point is balanced, and the pressing and pressure maintaining work of the bearing is automatically completed, so that the assembly precision and the assembly efficiency of the wind power bearing are improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of bearing installation, in particular to a full-automatic hydraulic high-strength positioning tool for wind power bearings. BACKGROUND

[0002] Wind power generation is a clean energy technology that utilizes wind power to drive windmill blades to rotate and converts kinetic energy into electric energy through a generator. The principle is based on wind energy capture and energy conversion, and it has the characteristics of no pollution and renewable. The equipment mainly consists of wind turbines, generators, control systems and the like, and is often clustered to form a wind farm. The global installed capacity of wind power continues to grow, which is an important way to respond to climate change and replace fossil energy.

[0003] At present, the existing wind power bearings are prone to rebound during the air cooling process after being hot-mounted, and the rebound will cause gaps in the bearings, increase the wear between components, produce abnormal vibration and noise, and even reduce the operation stability and service life of the entire wind power equipment. At the same time, the current bearing installation process relies heavily on manual operation, which not only has high labor intensity, but also is greatly affected by human factors, and it is difficult to meet the demand for large-scale and high-efficiency production. SUMMARY

[0004] In order to improve the assembly precision and efficiency of wind power bearings, the application provides a full-automatic hydraulic high-strength positioning tool for wind power bearings.

[0005] The full-automatic hydraulic high-strength positioning tool for wind power bearings provided by the application adopts the following technical scheme:

[0006] A full-automatic hydraulic high-strength positioning tool for wind power bearings, comprising a workbench, a hydraulic station and a plurality of clamping mechanisms, the wind power bearing is placed on the workbench, the plurality of clamping mechanisms are arranged on the workbench at equal intervals along the circumference of the wind power bearing, the clamping mechanism is used for clamping and assembling the wind power bearing, the hydraulic station is connected with the plurality of clamping mechanisms, and the hydraulic station provides power for the plurality of clamping mechanisms.

[0007] By adopting the above technical scheme, when the wind power bearing is assembled, the wind power bearing is placed on the workbench, the hydraulic station is used to provide power for the plurality of clamping mechanisms, and the plurality of clamping mechanisms simultaneously clamps and assembles the wind power bearing. In this way, the clamping mechanism is hydraulically driven, the clamping pressure is controlled through the hydraulic pressure, the wind power bearing can be pressure-maintained after air cooling after being hot-mounted, the gap caused by the rebound of the bearing is prevented, at the same time, the hydraulic station ensures that the oil pressure input at each point is balanced, and the bearing pressing and pressure-maintaining work is automatically completed, thereby improving the assembly precision and efficiency of the wind power bearing.

[0008] Preferably, the clamping mechanism comprises a support base, a connecting rod, a hydraulic cylinder, two mechanical claws and two pressing blocks, the support base is arranged on the workbench, the connecting rod is arranged on the support base, the two mechanical claws are rotatably arranged at the upper and lower ends of the connecting rod, the two ends of the hydraulic cylinder are rotatably connected with the same end of the two mechanical claws, the hydraulic cylinder is connected with the hydraulic station, the end of the mechanical claw away from the hydraulic cylinder is provided with a sliding groove, and the two pressing blocks are adjustably arranged in the two sliding grooves.

[0009] By adopting the above technical scheme, the hydraulic station provides hydraulic oil into the hydraulic cylinder, the hydraulic cylinder drives the two mechanical claws to rotate on the connecting rod, the two mechanical claws drive the two pressing blocks to move towards each other, and the two pressing blocks move to abut against the upper and lower sides of the wind power bearing, so that the wind power bearing can be clamped and assembled.

[0010] Preferably, the top end of the support base is adjustably provided with a lifting seat, and the connecting rod is connected with the lifting seat.

[0011] By adopting the above technical scheme, the lifting seat is adjusted to lift, and the lifting seat drives the connecting rod to move up and down, so that the two mechanical claws can move up and down, and the clamping mechanism can be suitable for different working conditions.

[0012] Preferably, a plurality of fixing holes are arranged on the mechanical claw at intervals along the length direction of the mechanical claw, a fixing member is arranged in the fixing hole of the mechanical claw, and the fixing member is detachably fixedly connected with the pressing block through the mechanical claw.

[0013] By adopting the above technical scheme, the fixing member is used to fix the pressing block, after the fixing member is unlocked, the pressing block can slide in the sliding groove of the mechanical claw, and then the fixing member is inserted into other fixing holes and fixedly connected with the pressing block again, so that the position of the pressing block can be adjusted, and the clamping mechanism can be suitable for wind power bearings of different diameters.

[0014] Preferably, a limiting strip is arranged on the pressing block along the sliding direction of the pressing block, a limiting groove is arranged in the mechanical claw and communicated with the sliding groove, the limiting strip is slidably arranged in the limiting groove, a support frame is arranged in the limiting groove of the mechanical claw, an accommodating groove is arranged in the limiting strip, the support frame is arranged in the accommodating groove, a locking mechanism is arranged in the support frame, a rotating shaft is rotatably arranged on the mechanical claw, a handle is arranged at the top end of the rotating shaft, a locking block is arranged at the bottom end of the rotating shaft and in the support frame, and the locking block is rotatably arranged and locks the pressing block through the locking mechanism.

[0015] By adopting the above technical scheme, when the compression block is adjusted, the compression block slides in the sliding groove, the compression block drives the limiting strip to slide in the limiting groove, and the support frame slides in the accommodating groove, so that the movement of the compression block can be guided and limited, and the movement of the compression block is more stable. When the compression block is adjusted, the handle is rotated, the handle drives the locking block to rotate in the support frame through the rotating shaft, the locking block triggers the locking mechanism and locks the compression block, so that the compression block can be quickly locked.

[0016] Preferably, the locking mechanism comprises two fixed racks and a movable rack, the two fixed racks are fixedly arranged on the opposite two side walls of the limiting strip displacement accommodating groove, the support frame is provided with a moving groove on the side wall close to the two fixed racks, and the two movable racks are slidably arranged in the two moving grooves.

[0017] By adopting the above technical scheme, after the locking block rotates, the locking block drives the two movable racks to move away from each other, the two movable racks move and contact the two fixed racks, the movable rack and the fixed rack are engaged and locked, so that the compression block can be locked.

[0018] Preferably, the two ends of the movable rack extend to the outside of the support frame, the two ends of the movable rack are provided with elastic members, the two elastic members are located on the two sides of the support frame, and the two ends of the elastic member are fixedly connected with the two movable racks.

[0019] By adopting the above technical scheme, when the locking block is unlocked, the two elastic members drive the two movable racks to move towards each other, so that the movable rack and the fixed rack are separated, and then the compression block can be adjusted.

[0020] Preferably, the top wall of each movable rack extending out of the two ends of the support frame is fixedly provided with a positioning block, and the two positioning blocks abut against the opposite two side walls of the support frame.

[0021] By adopting the above technical scheme, when the movable rack moves in the moving groove, the movable rack drives the two positioning blocks to move synchronously, and the two positioning blocks abut against the outer side wall of the support frame, so that the movement of the movable rack can be positioned, and the movement of the movable rack is more stable.

[0022] In summary, the present application has at least one of the following beneficial technical effects:

[0023] 1. Utilize the clamping mechanism, when assembling wind power bearing, place the wind power bearing on the workbench, use the hydraulic station to provide power for multiple clamping mechanisms, multiple clamping mechanisms simultaneously clamp and assemble the wind power bearing, the clamping mechanism is driven by hydraulic pressure, the clamping pressure is controlled by hydraulic pressure, which ensures that the wind power bearing can be pressure maintained after air cooling after heat shrinkage, prevents the bearing from rebounding to generate gap, at the same time, the hydraulic station ensures that the oil pressure input of each point is balanced, automatically completes the bearing pressing and pressure maintaining work, thereby improving the assembly precision and assembly efficiency of the wind power bearing;

[0024] 2. With the help of the lifting seat, the lifting seat is adjusted, the connecting rod is lifted and moved, so that the two mechanical claws can be lifted and moved, so that the clamping mechanism can be suitable for different working conditions;

[0025] 3. By fixing the fixing piece to the pressing block, after unlocking the fixing piece, the pressing block can slide in the sliding groove of the mechanical claw, and then the fixing piece is inserted into other fixing holes and fixedly connected with the pressing block again, so that the position of the pressing block can be adjusted, so that the clamping mechanism can be suitable for wind power bearings of different diameters. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is the overall structure schematic diagram of the positioning tool in embodiment 1 of the application;

[0027] Figure 2 It is the partial structure schematic diagram of the positioning tool in embodiment 1 of the application;

[0028] Figure 3 It is the partial structure schematic diagram of the positioning tool in embodiment 2 of the application;

[0029] Figure 4 It is the partial structure exploded view of the positioning tool in embodiment 2 of the application;

[0030] Figure 5 It is the partial structure sectional view of the positioning tool in embodiment 2 of the application, which highlights the locking mechanism;

[0031] Figure 6 It is the partial structure sectional view of the positioning tool in embodiment 2 of the application, which highlights the supporting frame;

[0032] The figure marks: 1, workbench; 2, hydraulic station; 3, clamping mechanism; 31, support seat; 32, connecting rod; 33, hydraulic cylinder; 34, mechanical claw; 35, pressing block; 4, wind power bearing; 5, wind power main shaft; 6, sliding groove; 7, lifting seat; 8, fixing hole; 9, fixing piece; 10, limiting strip; 11, limiting groove; 12, support frame; 13, containing groove; 14, locking mechanism; 141, fixed rack; 142, movable rack; 15, rotating shaft; 16, handle; 17, locking block; 18, moving groove; 19, elastic piece; 20, positioning block. DETAILED DESCRIPTION

[0033] The following will be described in detail in combination with the accompanying drawings. Figures 1-6 The application is further described in detail.

[0034] The embodiment of the application discloses a kind of wind power bearing full-automatic hydraulic high-strength positioning tool.

[0035] Embodiment 1:

[0036] Refer to Figure 1 A kind of wind power bearing full-automatic hydraulic high-strength positioning tool includes workbench 1, hydraulic station 2 and three clamping mechanisms 3, wind power main shaft 5 is installed on workbench 1, wind power bearing 4 is set on wind power main shaft 5 and is located on workbench 1.Three clamping mechanisms 3 are all installed on workbench 1, three clamping mechanisms 3 are equidistantly arranged along the circumference of wind power bearing 4, and hydraulic station 2 is connected with three clamping mechanisms 3 by pipeline.

[0037] In the assembly link of wind power bearing 4, first, the wind power bearing 4 to be assembled is set on wind power main shaft 5 and stably placed on workbench 1.The core power of assembly comes from hydraulic station 2, and hydraulic station 2 provides continuous and stable power output for three clamping mechanisms 3, to ensure that uniform force can be applied to the bearing from multiple directions when clamping.

[0038] Hydraulic control mode can accurately adjust clamping pressure, and after the heat shrinkage operation of wind power bearing 4 is completed, the clamping mechanism 3 can still maintain the set pressure to keep pressure when entering the air cooling stage.It can effectively offset the rebound trend of the bearing due to thermal expansion and contraction during cooling, thereby preventing gaps between the bearing and related components.

[0039] At the same time, hydraulic station 2 ensures that the oil pressure input at each point is balanced, automatically completes the bearing pressing and pressure maintaining work, and greatly improves the automation degree of assembly.Three clamping mechanisms 3 work cooperatively, which can simultaneously complete the multi-position clamping and assembly operation of wind power bearing 4, saving the tedious steps and waiting time in manual operation.Moreover, the response speed of hydraulic drive is fast, the action of clamping mechanism 3 is coordinated and smooth, which shortens the assembly cycle of single wind power bearing 4, effectively improves the overall assembly efficiency, and better meets the demand of large-scale production of wind power equipment.

[0040] Referring to Figure 2 Specifically, the clamping mechanism 3 comprises a support seat 31, a connecting rod 32, a hydraulic cylinder 33, two mechanical claws 34 and two pressing blocks 35. The support seat 31 is fixedly installed on the workbench 1, and the support seat 31 is threadedly installed on the lifting seat 7. The connecting rod 32 is threadedly installed on the top end of the lifting seat 7. The two mechanical claws 34 are rotatably installed on the upper and lower ends of the connecting rod 32 through bolts and nuts. The hydraulic cylinder 33 is installed on the same end of the two mechanical claws 34, and the upper and lower ends of the hydraulic cylinder 33 are rotatably connected with the two mechanical claws 34 through bolts and nuts. The end of each mechanical claw 34 away from the hydraulic cylinder 33 is provided with a sliding groove 6, and the two pressing blocks 35 are slidably installed in the sliding grooves 6 of the two mechanical claws 34.

[0041] When the assembly program is started, the hydraulic station 2 rapidly delivers hydraulic oil into the corresponding hydraulic cylinder 33. With the continuous injection of hydraulic oil, the pressure inside the hydraulic cylinder 33 gradually rises, thereby driving the piston rod to produce linear displacement, so that the two mechanical claws 34 rotate on the connecting rod 32 according to the preset trajectory. With the rotation of the mechanical claw 34, the two pressing blocks 35 connected thereto begin to move smoothly towards each other, thereby clamping and assembling the wind power bearing 4. The clamping action realized by hydraulic transmission not only has stable power output, but also has high coordination of the two mechanical claws 34, which can ensure that the clamping force applied to the bearing is uniformly distributed, thereby laying a solid foundation for subsequent assembly steps.

[0042] Five fixing holes 8 are equally and spacedly formed on the side of the mechanical claw 34 away from the hydraulic cylinder 33 along the length direction of the mechanical claw 34, and a fixing member 9 is arranged in each of the adjacent three fixing holes 8. In the present application, the fixing member 9 can be a bolt, which passes through the mechanical claw 34 and is threadedly fixed with the pressing block 35.

[0043] The operator can rotate the lifting seat 7 to drive the connecting rod 32 to move vertically. Since the two mechanical claws 34 are installed on the connecting rod 32, the lifting of the connecting rod 32 will synchronously drive the mechanical claws 34 and the pressing blocks 35 to synchronously lift, thereby quickly adjusting the working height of the clamping mechanism 3.

[0044] When it is necessary to replace the wind power bearing 4 of different diameters for assembly, the fixing member 9 is only rotated to be taken out of the current fixing hole 8 to complete unlocking. At this time, the pressing block 35 can slide along the sliding groove 6 on the mechanical claw 34, and the operator slides the pressing block 35 to the appropriate position according to the diameter size of the bearing to be assembled, and then inserts the fixing member 9 into the corresponding other fixing hole 8 and tightens the fixing member 9 to make the pressing block 35 and the mechanical claw 34 re-form a firm connection. In this way, without large-scale disassembly and recombination of the clamping mechanism 3, the clamping mechanism 3 can be quickly adapted to bearings of different diameters, which reduces the downtime when replacing the assembly workpiece, reduces the equipment maintenance cost, and significantly improves the flexibility and working efficiency of the assembly.

[0045] The implementation principle of the wind power bearing full-automatic hydraulic high-strength positioning tool of the embodiment of the application is as follows: when the assembly program is started, the hydraulic station 2 rapidly delivers hydraulic oil into the corresponding hydraulic cylinder 33. With the continuous injection of the hydraulic oil, the pressure inside the hydraulic cylinder 33 gradually increases, and then drives the piston rod to produce linear displacement, so that the two mechanical claws 34 rotate on the connecting rod 32 according to the preset trajectory. With the rotation of the mechanical claw 34, the two pressing blocks 35 connected with the mechanical claw 34 begin to move stably towards each other, and then the wind power bearing 4 is clamped and assembled. The hydraulic control mode can accurately adjust the clamping pressure. After the wind power bearing 4 completes the hot fitting operation and enters the air cooling stage, the clamping mechanism 3 can still maintain the set pressure for pressure retention. The rebound trend of the bearing due to thermal expansion and cold contraction during the cooling process can be effectively offset, so as to prevent the gap between the bearing and the related parts. The three clamping mechanisms 3 work cooperatively, and can simultaneously complete the clamping and assembly operation of multiple parts of the wind power bearing 4, thereby saving the tedious steps and waiting time in manual operation.

[0046] Embodiment 2

[0047] With reference to Figure 3 , Figure 4 , Figure 5 and Figure 6 , the difference between the embodiment and the embodiment 1 is that the pressing block 35 is fixedly installed with a limiting strip 10. The limiting strip 10 is located at the middle part of the pressing block 35, and the limiting strip 10 is installed along the length direction of the pressing block 35. A limiting groove 11 is formed in the mechanical claw 34, the limiting groove 11 is formed along the length direction of the mechanical claw 34, the limiting groove 11 is communicated with the sliding groove 6, and the limiting strip 10 is slidably installed in the limiting groove 11 in a matched manner. When the pressing block 35 slides in the sliding groove 6, the limiting strip 10 slides in the limiting groove 11. The limiting strip 10 and the limiting groove 11 limit the sliding of the pressing block 35, so that the pressing block 35 slides more stably and does not deviate.

[0048] The mechanical claw 34 is fixedly installed with a support frame 12 with a square cross section in the limiting groove 11. The limiting strip 10 is provided with a receiving groove 13 along the length direction thereof. The opposite sidewalls of the support frame 12 abut against the opposite inner sidewalls of the receiving groove 13. When the limiting strip 10 slides in the limiting groove 11, the support frame 12 slides in the receiving groove 13. The support frame 12 cooperates with the receiving groove 13 to further limit the sliding of the pressing block 35.

[0049] The mechanical claw 34 is rotatably installed with a rotating shaft 15. The top end of the rotating shaft 15 is fixedly installed with a handle 16. The bottom end of the rotating shaft 15 extends into the support frame 12. The bottom end of the rotating shaft 15 is fixedly installed with a locking block 17 in a strip shape. The support frame 12 is installed with a locking mechanism 14. The locking mechanism 14 comprises two fixed racks 141 and a movable rack 142.

[0050] The support strip is provided with a moving groove 18 on the opposite sidewalls close to the inner walls of the receiving groove 13. The two fixed racks 141 are fixedly installed on the opposite sidewalls of the limiting strip 10 in the receiving groove 13. The two fixed racks 141 are located in the two moving grooves 18. The two movable racks 142 are slidably installed in the two moving grooves 18 of the support frame 12 along the width direction of the receiving groove 13. The locking block 17 is located between the two movable racks 142.

[0051] The two ends of the movable rack 142 extend out of the support frame 12. The two ends of the movable rack 142 are fixedly installed with a positioning block 20 on the top wall. The two positioning blocks 20 abut against the opposite outer sidewalls of the support frame 12. The movable rack 142 is installed with an elastic element 19 on the two ends thereof outside the support frame 12. In this application, the elastic element 19 can be selected as a tension spring. The two ends of the elastic element 19 are fixedly connected with the two movable racks 142.

[0052] The implementation principle of the embodiment 2 is that when the pressing block 35 is adjusted to the required position, the operator only needs to rotate the handle 16 to quickly complete the locking operation. The handle 16 transmits the torque through the rotating shaft 15 fixedly connected therewith to drive the locking block 17 inside the support frame 12 to rotate. After the locking block 17 rotates, it pushes the two movable racks 142 to move away from each other along the moving grooves 18 in the support frame 12. When the movable rack 142 moves in the moving groove 18, the two positioning blocks 20 fixedly installed on the two sides thereof move synchronously to effectively position the moving stroke of the movable rack 142. With the movement of the movable rack 142, the ends thereof gradually contact the two fixed racks 141 on the mechanical claw 34 and achieve precise meshing of the teeth in the continuous movement to form a firm meshing locking. This meshing locking mode utilizes the biting action between the teeth to withstand a larger external force, ensuring that the pressing block 35 does not displace during the clamping of the bearing and ensuring the reliability of clamping.

[0053] When it is necessary to unlock to readjust the position of the pressing block 35, the handle 16 is turned in the opposite direction, the locking block 17 is turned and the pushing force on the movable rack 142 is released. At this time, the two elastic members 19 installed in the support frame 12 release the stored elastic potential energy, pull the two movable racks 142 to move towards each other, and make the teeth of the movable rack 142 and the fixed rack 141 gradually separate, so that the locking state is released, and the operator can easily push the pressing block 35 to adjust the position. Only by turning the handle 16, the stable locking and unlocking of the pressing block 35 can be achieved, and the whole process does not need complicated operation steps, greatly improves the locking efficiency, and meets the production demand of rapid assembly.

[0054] The above is only an optional embodiment of the present disclosure and is not used to limit the present disclosure. For those skilled in the art, the present disclosure can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A fully automatic hydraulic high-strength positioning fixture for wind turbine bearings, characterized in that: The assembly includes a workbench (1), a hydraulic station (2), and multiple clamping mechanisms (3). The wind turbine bearing (4) is placed on the workbench (1). The multiple clamping mechanisms (3) are arranged at equal intervals along the circumference of the wind turbine bearing (4) on the workbench (1). The clamping mechanisms (3) are used to clamp and assemble the wind turbine bearing (4). The hydraulic station (2) is connected to the multiple clamping mechanisms (3) and provides power to the multiple clamping mechanisms (3).

2. The fully automatic hydraulic high-strength positioning fixture for wind turbine bearings according to claim 1, characterized in that: The clamping mechanism (3) includes a support base (31), a connecting rod (32), a hydraulic cylinder (33), two mechanical claws (34) and two clamping blocks (35). The support base (31) is set on the workbench (1), the connecting rod (32) is set on the support base (31), the two mechanical claws (34) are rotatably set at the upper and lower ends of the connecting rod (32), the two ends of the hydraulic cylinder (33) are rotatably connected to the same end of the two mechanical claws (34) respectively, the hydraulic cylinder (33) is connected to the hydraulic station (2), and the end of the mechanical claw (34) away from the hydraulic cylinder (33) is provided with a sliding groove (6). The two clamping blocks (35) are adjustablely set in the two sliding grooves (6).

3. The fully automatic hydraulic high-strength positioning fixture for wind turbine bearings according to claim 2, characterized in that: The top of the support base (31) is adjustablely provided with a lifting seat (7), and the connecting rod (32) is connected to the lifting seat (7).

4. The fully automatic hydraulic high-strength positioning fixture for wind turbine bearings according to claim 2, characterized in that: The mechanical claw (34) has multiple fixing holes (8) spaced apart along its own length. The mechanical claw (34) is provided with a fixing member (9) in the fixing hole (8). The fixing member (9) passes through the mechanical claw (34) and is detachably and fixedly connected to the clamping block (35).

5. The fully automatic hydraulic high-strength positioning fixture for wind turbine bearings according to claim 2, characterized in that: The clamping block (35) is provided with a limiting strip (10) along its sliding direction. The mechanical claw (34) is provided with a limiting groove (11) communicating with the sliding groove (6). The limiting strip (10) is slidably disposed in the limiting groove (11). The mechanical claw (34) is provided with a support frame (12) located in the limiting groove (11). The limiting strip (10) is provided with a receiving groove (13). The support frame (12) is located in the receiving groove (13). The support frame (12) is provided with a locking mechanism (14). The mechanical claw (34) is rotatably provided with a rotating shaft (15). The top of the rotating shaft (15) is provided with a handle (16). The bottom of the rotating shaft (15) is located in the support frame (12) and is provided with a locking block (17). The locking block (17) rotates and locks the clamping block (35) through the locking mechanism (14).

6. The fully automatic hydraulic high-strength positioning fixture for wind turbine bearings according to claim 5, characterized in that: The locking mechanism (14) includes two fixed racks (141) and a movable rack (142). The two fixed racks (141) are fixedly mounted on the opposite side walls of the displacement receiving groove (13) of the limiting strip (10). The support frame (12) has a moving groove (18) on the side wall near the two fixed racks (141). The two movable racks (142) are slidably mounted in the two moving grooves (18). The locking block (17) is located between the two movable racks (142).

7. The fully automatic hydraulic high-strength positioning fixture for wind turbine bearings according to claim 6, characterized in that: The two ends of the movable rack (142) extend to the outside of the support frame (12). Both ends of the movable rack (142) are provided with elastic elements (19). The two elastic elements (19) are located on both sides of the support frame (12), and the two ends of the elastic elements (19) are respectively fixedly connected to the two movable racks (142).

8. The fully automatic hydraulic high-strength positioning fixture for wind turbine bearings according to claim 7, characterized in that: Each of the moving racks (142) has a positioning block (20) fixedly installed on the top wall of both ends extending outward from the support frame (12), and the two positioning blocks (20) abut against the opposite side walls of the support frame (12).

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