Avionics hub rotating wheel test tool

Abstract

The invention provides an avionics hub rotating wheel test tool, and relates to the technical field of test tools, the avionics hub rotating wheel test tool comprises a fixed plate, the inner side of the fixed plate is provided with a clamping groove, the clamping groove is internally provided with a tool plate, and the center of the tool plate is provided with a hole for a feedback rod to pass through. An exhaust hole, a constant-pressure cavity oil inlet hole, a guide vane closing through hole and a guide vane through hole are respectively formed in the surface of the tool plate, and the positions of the exhaust hole, the constant-pressure cavity oil inlet hole, the guide vane closing through hole and the guide vane through hole are matched with the test shaft; the tool is arranged at the upper end of a test shaft, is butted with four pipelines in the shaft by utilizing a plurality of reserved through holes, and is connected with a test pump station through sealing treatment, so that the leakage data of the rotating wheel can be recorded without disassembling all equipment of water power and a generator set; therefore, manpower and material resources can be greatly reduced, and the difficulty and risk of the test process are reduced accordingly.

Description

Technical Field

[0001] The present invention relates to the technical field of test tooling, and in particular to an avionics hub runner test tooling. Background Art

[0002] The current traditional maintenance mode of hydropower stations generally does not start from the goal of system maintenance, and there are problems such as low maintenance efficiency, high maintenance cost, repeated waste of maintenance resources, and poor maintenance results. Without disassembling the internal piston of the axial flow propeller runner, maintenance personnel have no effective means to monitor the internal equipment operating conditions of the turbine generator unit runner, which brings great difficulties to the equipment to achieve intelligent maintenance, dynamic analysis, intelligent diagnosis, and early warning judgment of equipment operation risks.

[0003] The planned maintenance period for the axial-flow propeller turbines at Caojie Navigation and Power Hub is generally 8-10 years. In order to timely and accurately grasp the operating conditions of the equipment, the hydropower station generally purchases equipment that increases the frequency of maintenance of the turbine generator sets, resulting in a large amount of waste of manpower and material resources.

[0004] The original test platform required the dismantling of all the hydropower and generator sets, and then the hoisting of the runner to the installation room for maintenance, and then the oil pressure action test. The total weight of the generator rotor of the Caojie Navigation and Power Hub is about 420 tons, the total weight of the turbine is about 560 tons, and the runner diameter is 9.5 meters. The dismantling and hoisting of these equipment is difficult, and it is easy to cause personnel safety accidents during the process. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an avionics hub runner test fixture, which can check the operating condition of the turbine runner without lifting the movable cylinder axial flow propeller runner out of the pit for dismantling.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] The avionics hub rotor test tooling comprises a fixing plate, a card slot is provided on the inner side of the fixing plate, a tooling plate is arranged inside the card slot, a hole for passing a feedback rod is provided at the center of the tooling plate, an exhaust hole, a constant pressure chamber oil inlet hole, a guide vane closing through hole and a guide vane opening through hole are respectively provided on the surface of the tooling plate, and the positions of the exhaust hole, the constant pressure chamber oil inlet hole, the guide vane closing through hole and the guide vane opening through hole are matched with the test shaft, and docking sockets are provided on the outer sides of the exhaust hole, the constant pressure chamber oil inlet hole, the guide vane closing through hole and the guide vane opening through hole, and each of the docking sockets is used to connect the experimental pump station, and a plurality of grooves are provided on the surface of the fixing plate, and locking components for quickly fixing the tooling plate are installed inside the grooves.

[0008] Preferably, the exhaust hole, the constant pressure chamber oil inlet hole, the guide vane closing hole and the guide vane opening hole are all provided with expansion grooves at the bottom, and a sealing ring is installed inside each of the expansion grooves to prevent leakage.

[0009] Preferably, an extension slip ring is arranged on the outer side of the tooling plate, and the extension slip ring is movably arranged inside the slot. A plurality of mounting grooves are opened on the upper surface of the extension slip ring, and a roller is arranged inside each of the mounting grooves.

[0010] Preferably, a mating thread is provided on the upper surface of the tooling plate, a fixed pressure plate is movably installed on the outer side of the tooling plate, a mating screw hole is opened on the inner wall of the fixed pressure plate, the mating screw hole is mated with the mating thread, and a first handrail is installed on the upper end of the fixed pressure plate.

[0011] Preferably, the locking assembly comprises a rotating shaft, which is rotatably mounted inside the groove, each rotating shaft body is fixedly mounted with a rotating disk, and each rotating disk has a locking claw fixedly mounted on the outer side thereof.

[0012] Preferably, an adjusting screw hole is provided at the lower end of the locking claw, an adjusting screw is threadedly arranged inside the adjusting screw hole, a knob is fixedly mounted at the bottom of the adjusting screw, a locking plate is fixedly mounted at the top of the adjusting screw, and a through hole is provided inside the locking plate.

[0013] Preferably, a rotation groove is provided on the upper surface of the fixing plate, a rotation rod is rotatably installed inside the rotation groove, a worm sleeve is provided on the outer surface of the rotation rod, and a second handrail is fixedly installed on the upper end of the rotation rod.

[0014] Preferably, a half worm gear is fixedly mounted on the outer side of each rotating disk, and the outer side of the half worm gear is threadedly matched with the worm sleeve.

[0015] Preferably, each rotating disk is provided with an extension groove, a limiting slide rail is fixedly mounted on the inner wall of the extension groove, a movable slide seat is slidably mounted inside the limiting slide rail, and a connecting rotating rod is mounted in the middle of the movable slide seat.

[0016] Preferably, the connecting rotating rod body is rotatably connected to a connecting rotating plate, a positioning rod is fixedly installed at the bottom of the connecting rotating plate, a plurality of positioning holes are opened on the surface of the fixed plate, and each of the positioning rod bodies passes through an adjacent positioning hole.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. This tool is installed on the upper end of the test shaft, and multiple through holes are reserved to connect with the four pipes in the shaft, and it is sealed to connect it to the experimental pump station. There is no need to dismantle all the equipment of the hydropower and generator sets to record the runner leakage data, which can greatly reduce human and material resources, and reduce the difficulty and risk of the test process.

[0019] 2. Rollers are arranged inside each mounting groove, and the extended slip ring is movably arranged inside the slot, so that the angle between the fixed plate and the tooling plate can be rotated, thereby ensuring that the positioning rod on the fixed plate can be aligned with the hole position on the flange, so that the present application can adjust the fixing angle according to the flange hole position, avoiding hole position deviation when testing different wheels.

[0020] 3. By holding the second handrail and rotating the rotating rod, the worm sleeve and the outer half worm wheel are meshed and transmitted, so that the half worm wheel rotates, and the rotating disk rotates outward with the rotating shaft as the center, so that several locking claws are flipped to the lower end of the flange, and the locking and fixing operation is performed to achieve quick installation. Similarly, by rotating the rotating rod in the opposite direction, several locking claws can be reset to achieve the effect of quick disassembly.

[0021] 4. A movable positioning rod is provided inside the rotating disk, and when the locking claw is flipped downward to lock, the limiting slide rail will flip downward accordingly, so that the movable slide inside the limiting slide rail slides downward, and cooperates with the rotating connection between it and the positioning rod, so that the positioning rod can be inserted downward, so that the positioning rod is inserted into the flange hole, thereby realizing the limiting fixation of the position of the fixed plate and avoiding the subsequent position displacement during locking. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 It is a bottom-up structural schematic diagram of the present invention;

[0024] Figure 3 It is a schematic diagram of the top view of the structure of the present invention;

[0025] Figure 4 yes Figure 3 Schematic diagram of the cross-section structure at AA in the middle;

[0026] Figure 5 yes Figure 4 The enlarged structural diagram at a in the middle;

[0027] Figure 6 yes Figure 4 The enlarged structural diagram at b in the middle;

[0028] Figure 7 It is a side structural schematic diagram of the present invention;

[0029] Figure 8 yes Figure 7 Schematic diagram of the cross-section structure at BB in the middle;

[0030] Fig. 9 yes Figure 8 The enlarged structural diagram at c in the middle.

[0031] In the figure: 1, fixed plate; 101, slot; 2, tooling plate; 201, matching thread; 202, fixed pressure plate; 203, first handrail; 204, matching screw hole; 205, placement groove; 206, roller; 207, extension slip ring; 3, groove; 4, locking assembly; 401, rotating shaft; 402, rotating disk; 4021, half worm gear; 4022, extension slot; 4023, limit slide rail; 403, locking claw; 4031, adjustment screw hole; 4032, adjustment screw Rod; 4033, locking plate; 4034, perforation; 4035, knob; 404, positioning hole; 405, positioning rod; 406, rotating groove; 407, rotating rod; 4071, worm sleeve; 4072, second handrail; 408, connecting rotating plate; 409, connecting rotating rod; 410, movable slide; 5, hole; 6, exhaust hole; 7, constant pressure chamber oil inlet hole; 8, guide vane closing hole; 9, guide vane opening hole; 10, docking card seat; 11, expansion slot; 12, sealing ring. DETAILED DESCRIPTION

[0032] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] like Figures 1 to 9 As shown, the avionics hub runner test fixture comprises a fixing plate 1, a card slot 101 is provided on the inner side of the fixing plate 1, a fixture plate 2 is arranged inside the card slot 101, a hole 5 for passing the feedback rod is provided at the center of the fixture plate 2, an exhaust hole 6, a constant pressure chamber oil inlet hole 7, a guide vane closing through hole 8 and a guide vane opening hole 9 are respectively provided on the surface of the fixture plate 2, the exhaust hole 6, the constant pressure chamber oil inlet hole 7, the guide vane closing through hole 8 and the guide vane opening through hole 9 are respectively provided, the positions of the exhaust hole 6, the constant pressure chamber oil inlet hole 7, the guide vane closing through hole 8 and the guide vane opening through hole 9 are all matched with the test shaft, the exhaust hole 6, the constant pressure chamber oil inlet hole 7, the guide vane closing through hole 8 and the guide vane opening through hole 9 are all provided with a docking card seat 10 on the outer side, each docking card seat 10 is used to connect the experimental pump station, a plurality of grooves 3 are provided on the surface of the fixing plate 1, and a locking assembly 4 for quickly fixing the fixture plate 2 is installed inside the groove 3.

[0034] In this embodiment, the exhaust hole 6, the constant pressure chamber oil inlet hole 7, the guide vane closing hole 8 and the guide vane opening hole 9 are all provided with expansion grooves 11 at the bottom, and a sealing ring 12 is installed inside each expansion groove 11 to prevent leakage.

[0035] When in use, the exhaust hole 6, the constant pressure chamber oil inlet hole 7, the guide vane closing hole 8 and the guide vane opening hole 9 on the tooling plate 2 are connected to the internal pipeline of the test shaft, and the sealing ring 12 is used to improve the sealing performance of each connecting pipeline.

[0036] An extension slip ring 207 is disposed on the outside of the tooling plate 2 and is movably disposed inside the slot 101 . A plurality of placement grooves 205 are formed on the upper surface of the extension slip ring 207 , and a roller 206 is disposed inside each placement groove 205 .

[0037] It should be noted that a mating thread 201 is provided on the upper surface of the tooling plate 2, a fixed pressure plate 202 is movably installed on the outer side of the tooling plate 2, a mating screw hole 204 is opened on the inner wall of the fixed pressure plate 202, the mating screw hole 204 is threadably mated with the mating thread 201, and a first handrail 203 is installed on the upper end of the fixed pressure plate 202.

[0038] Before installation, since the upper end rod of the runner is connected by a flange, but the flange is usually welded to the runner equipment, the hole position on the flange will change. Therefore, although the channel inside the tooling plate 2 can correspond to the test shaft pipeline, there will be a certain position deviation between the flange hole position. In order to adapt to different flange hole positions, a roller 206 is provided inside each mounting groove 205, and an extended slip ring 207 is movably provided inside the slot 101, so that the angle between the fixed plate 1 and the tooling plate 2 can be rotated, thereby ensuring that the positioning rod 405 on the fixed plate 1 can be aligned with the hole position on the flange, so that the present application can adjust the fixing angle according to the flange hole position to avoid hole position deviation when testing different runners;

[0039] After alignment, in order to avoid movement between the fixing plate 1 and the tooling plate 2 during subsequent tests, the first armrest 203 is held and the fixing pressure plate 202 is rotated so that the mating screw hole 204 is threadedly mated with the mating thread 201, and the mating pressure plate 202 presses the fixing plate 1 downward, so that the position between the fixing plate 1 and the tooling plate 2 is locked, so as to improve the stability of subsequent tests.

[0040] In this embodiment, the locking assembly 4 includes a rotating shaft 401 rotatably mounted inside the groove 3 , each rotating shaft 401 has a rotating disk 402 fixedly mounted on its shaft body, and each rotating disk 402 has a locking claw 403 fixedly mounted on its outer side.

[0041] Among them, an adjusting screw hole 4031 is opened at the lower end of the locking claw 403, an adjusting screw 4032 is threadedly arranged inside the adjusting screw hole 4031, a knob 4035 is fixedly installed at the bottom of the adjusting screw 4032, a locking plate 4033 is fixedly installed on the top of the adjusting screw 4032, and a through hole 4034 is opened inside the locking plate 4033.

[0042] During the locking process, due to the different usage conditions of the flange, the bottom of the flange will have different heights. In order to prevent some locking claws 403 from failing to lock into place, the height of the locking plate 4033 is achieved by rotating the knob 4035 and then adjusting the screw 4032 and the adjusting screw hole 4031, so that the locking plate 4033 can lock the flange, thereby avoiding the situation where the locking strength is insufficient due to the uneven surface of the flange.

[0043] In the present application, a rotating groove 406 is provided on the upper surface of the fixed plate 1, a rotating rod 407 is rotatably installed inside the rotating groove 406, a worm sleeve 4071 is provided on the outer surface of the rotating rod 407, and a second handrail 4072 is fixedly installed on the upper end of the rotating rod 407;

[0044] A half worm gear 4021 is fixedly mounted on the outer side of each rotating disk 402 , and the outer side of the half worm gear 4021 is threadedly matched with the worm sleeve 4071 .

[0045] When installing this tooling, in order to be able to quickly disassemble or install this application, by holding the second armrest 4072 and rotating the rotating rod 407, the worm sleeve 4071 and the outer half worm wheel 4021 are engaged with each other, so that the half worm wheel 4021 rotates, and the rotating disk 402 rotates outward with the rotating shaft 401 as the center, so that the multiple locking claws 403 are flipped to the lower end of the flange, and the locking and fixing operation is performed to achieve quick installation. Similarly, by rotating the rotating rod 407 in the opposite direction, the multiple locking claws 403 can be reset to achieve the effect of quick disassembly.

[0046] In the specific configuration, each rotating disk 402 is provided with an extension slot 4022, a limited slide rail 4023 is fixedly installed on the inner wall of the extension slot 4022, a movable slide seat 410 is slidably installed inside the limited slide rail 4023, and a connecting rotating rod 409 is installed in the middle of the movable slide seat 410;

[0047] The connecting rotating rod 409 is rotatably connected to the connecting rotating plate 408 , and a positioning rod 405 is fixedly installed at the bottom of the connecting rotating plate 408 . A plurality of positioning holes 404 are opened on the surface of the fixing plate 1 , and the rod of each positioning rod 405 passes through the adjacent positioning holes 404 .

[0048] In order to ensure that there will be no positional deviation when the tool is installed, a movable positioning rod 405 is provided inside the rotating disk 402. When the locking claw 403 is flipped downward for locking, the limiting slide rail 4023 will flip downward accordingly, so that the movable slide 410 inside the limiting slide rail 4023 slides downward and cooperates with the rotating connection between it and the positioning rod 405, so that the positioning rod 405 can be inserted downward, and the positioning rod 405 is inserted into the flange hole, thereby realizing the limiting fixation of the position of the fixed plate 1 and avoiding positional deviation during subsequent locking.

[0049] Working principle of the avionics hub rotor test fixture:

[0050] When installing this fixture, firstly, the operating oil and the constant pressure oil of the runner in the test shaft are discharged to below the connection part between the bushing and the test shaft through the oil filter to facilitate the subsequent connection;

[0051] Then, remove the oil receiver seat and the upper end of the test shaft in turn, and clean the inner cavity of the bushing and four operating oil pipes, including the exhaust pipe, oil filling pipe, guide vane closing pipe and guide vane opening pipe;

[0052] After completion, clean the feedback rod and the tooling, and check the integrity of the sealing ring 12, then use a crane to lift the tooling to the upper end of the feedback rod, where the feedback rod passes through the hole 5, and adjust the levelness of the tooling;

[0053] During the installation of this tool, the staff can use copper rods or sleepers to knock the tool body so that the tool can be installed smoothly;

[0054] When the tooling is hoisted to the bushing, it is necessary to observe the flange boss at the bottom of the tooling. According to the needs, a roller 206 is arranged inside each placement groove 205, and the extended slip ring 207 is movably arranged inside the slot 101, so that the angle between the fixed plate 1 and the tooling plate 2 can be rotated, thereby ensuring that the positioning rod 405 on the fixed plate 1 can be aligned with the hole position on the flange;

[0055] Then, by holding the second handrail 4072 and rotating the rotating rod 407, the worm sleeve 4071 and the outer half worm wheel 4021 are meshed and driven, so that the half worm wheel 4021 rotates, and the rotating disk 402 rotates outward with the rotating shaft 401 as the center, so that the locking claws 403 are turned to the lower end of the flange for locking and fixing, and the tooling is installed on the upper end of the test shaft;

[0056] After installation, the docking card seat 10 is used to connect the exhaust hole 6, the constant pressure chamber oil inlet hole 7, the guide vane closing hole 8 and the guide vane opening hole 9 to the experimental pump station, thereby completing the installation steps.

[0057] Test process:

[0058] 1. Check the sealing of each connecting pipeline;

[0059] 2. Check that the blade exhaust valve is in the open position

[0060] 3. Switch the blade operating handle of the experimental pump station to the middle position;

[0061] 4. Manually start the experimental pump station;

[0062] 5. Open the outlet valve of the paddle;

[0063] 6. Open the outlet valve of the impeller;

[0064] 7. Switch the blade operating handle to the blade opening position;

[0065] 8. Observe and measure the length of the feedback rod in the middle of this tooling position to confirm that the runner blades are in the fully open position;

[0066] 9. After confirming that the impeller blades are in the fully open position, switch the blade operating handle to the blade closing position;

[0067] 10. Observe and measure the length of the feedback rod in the middle of this tooling position to confirm that the runner blades are in the fully closed position;

[0068] 11. Repeat the operation two or three times to exhaust all the air in the wheel operating chamber;

[0069] 12. Confirm that the impeller blades are in the fully open position;

[0070] 13. Switch the blade operating handle of the experimental pump station to the middle position;

[0071] 14. Valve closing test pump station;

[0072] 15. Close the outlet valve of the impeller;

[0073] 16. Disassemble the oil pipe of the impeller blade close to the joint on the side of this tooling;

[0074] 17. Place the oil pipe of the impeller blade close to the joint on the side of this tooling on top of the measuring bottle;

[0075] 18. Manually start the experimental pump station;

[0076] 19. Switch the blade operating handle to the blade opening position;

[0077] 20. Manually control the blade opening pressure to between 6.3 and 6.5 MPa;

[0078] 21. Measure the amount of oil leakage from the measuring bottle of the joint on the side of the tooling when the blade oil pipe is closed for half an hour. The amount of oil leakage from this measuring bottle is the amount of oil leakage from the runner opening cavity.

[0079] 22. Record relevant test data and analyze them;

[0080] 23. On the contrary, measure the leakage of the blade.

[0081] Constant pressure oil metering method:

[0082] 1. Check the sealing of each connecting pipeline;

[0083] 2. Check that the blade exhaust valve is in the open position

[0084] 3. Switch the operating handle of the constant pressure chamber of the blade of the experimental pump station to the closed position;

[0085] 4. Manually start the constant pressure chamber oil pump of the experimental pump station;

[0086] 5. Open the outlet valve of the constant pressure chamber oil pump of the experimental pump station;

[0087] 6. Operate the oil pump until there are no air bubbles in the blade exhaust pipe;

[0088] 7. Manually close the blade exhaust valve;

[0089] 8. Manually control the constant pressure chamber oil pump, observe the outlet pressure gauge pressure to 0.5Mpa, and then turn off the experimental pump station oil pump;

[0090] 9. Close the outlet valve of the constant pressure chamber oil pump of the experimental pump station;

[0091] 10. Observe the outlet pressure gauge and calculate the pressure drop of the constant pressure oil chamber in half an hour;

[0092] 11. Record and analyze relevant test data.

[0093] The following is the unit runner pressure test data analysis table:

[0094]

[0095]

[0096]

[0097] Conclusion: The leakage of the impeller of unit #1 is gradually increasing, indicating that there are large scratches on the piston seal and cylinder body, and A repair is required; the leakage of the impeller of unit #4 is relatively large and can be left untreated for the time being, but the monitoring of related equipment needs to be strengthened during operation; the operating conditions of the impellers of other units are relatively good.

[0098] In the present application, the fixing plate 1 and the tooling plate 2 need to have sufficient strength to ensure that the tooling plate 1 does not deform when the oil pressure is transmitted to the tooling plate 1 during the pressure oil test of the rotating wheel.

[0099] Among them, in accordance with the relevant maintenance requirements of the power industry and combined with the maintenance characteristics of the axial-flow propeller units in hydropower stations, the technical personnel calculated the pressure, analyzed the stress conditions, and then manufactured and processed this tooling based on the structural characteristics of the upper shaft and the rotating shaft of the hydro-generator unit, and according to the shape, material, sealing characteristics and force of the upper shaft and the rotating shaft, and then based on the material characteristics.

[0100] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. Avionics hub rotor test fixture, comprising a fixing plate (1), characterized in that: A slot (101) is provided on the inner side of the fixing plate (1), a tooling plate (2) is arranged inside the slot (101), a hole (5) for passing a feedback rod is provided at the center of the tooling plate (2), an exhaust hole (6), a constant pressure chamber oil inlet hole (7), a guide vane closing hole (8) and a guide vane opening hole (9) are respectively provided on the surface of the tooling plate (2), the exhaust hole (6), the constant pressure chamber oil inlet hole (7), the guide vane closing hole (8) and the guide vane opening hole (9) are all located in a manner matching the test axis, a docking card seat (10) is provided on the outer side of the exhaust hole (6), the constant pressure chamber oil inlet hole (7), the guide vane closing hole (8) and the guide vane opening hole (9), each of the docking card seats (10) is used to connect to the experimental pump station, a plurality of grooves (3) are provided on the surface of the fixing plate (1), and a locking assembly (4) for quickly fixing the tooling plate (2) is installed inside the groove (3).

2. The avionics hub rotor test fixture according to claim 1, characterized in that: The exhaust hole (6), the constant pressure chamber oil inlet hole (7), the guide vane closing hole (8) and the guide vane opening hole (9) are all provided with expansion grooves (11) at the bottom, and a sealing ring (12) for preventing leakage is installed inside each expansion groove (11).

3. The avionics hub rotor test fixture according to claim 1, characterized in that: An extension slip ring (207) is arranged on the outside of the tooling plate (2), and the extension slip ring (207) is movably arranged inside the clamping groove (101). A plurality of placement grooves (205) are opened on the upper surface of the extension slip ring (207), and a roller (206) is arranged inside each placement groove (205).

4. The avionics hub rotor test fixture according to claim 1, characterized in that: The upper surface of the tooling plate (2) is provided with a matching thread (201), a fixed pressure plate (202) is movably installed on the outer side of the tooling plate (2), a matching screw hole (204) is opened on the inner wall of the fixed pressure plate (202), the matching screw hole (204) is threadedly matched with the matching thread (201), and a first handrail (203) is installed on the upper end of the fixed pressure plate (202).

5. The avionics hub rotor test fixture according to claim 1, characterized in that: The locking assembly (4) comprises a rotating shaft (401) which is rotatably mounted inside the groove (3). A rotating disk (402) is fixedly mounted on the shaft body of each rotating shaft (401), and a locking claw (403) is fixedly mounted on the outer side of each rotating disk (402).

6. The avionics hub rotor test fixture according to claim 5, characterized in that: An adjusting screw hole (4031) is provided at the lower end of the locking claw (403), an adjusting screw (4032) is provided with an internal thread of the adjusting screw hole (4031), a knob (4035) is fixedly installed at the bottom of the adjusting screw (4032), a locking plate (4033) is fixedly installed at the top of the adjusting screw (4032), and a through hole (4034) is provided inside the locking plate (4033).

7. The avionics hub rotor test fixture according to claim 5, characterized in that: A rotating groove (406) is provided on the upper surface of the fixed plate (1), a rotating rod (407) is rotatably mounted inside the rotating groove (406), a worm sleeve (4071) is provided on the outer surface of the rotating rod (407), and a second handrail (4072) is fixedly mounted on the upper end of the rotating rod (407).

8. The avionics hub rotor test fixture according to claim 7, characterized in that: A half worm gear (4021) is fixedly mounted on the outer side of each rotating disk (402), and the outer side of the half worm gear (4021) is threadedly matched with the worm sleeve (4071).

9. The avionics hub rotor test fixture according to claim 5, characterized in that: Each rotating disk (402) is provided with an extension groove (4022) inside, a limit slide rail (4023) is fixedly installed on the inner wall of the extension groove (4022), a movable slide seat (410) is slidably installed inside the limit slide rail (4023), and a connecting rotating rod (409) is installed in the middle of the movable slide seat (410).

10. The avionics hub rotor test fixture according to claim 9, characterized in that: The connecting rotating rod (409) is rotatably connected to a connecting rotating plate (408), a positioning plug rod (405) is fixedly installed at the bottom of the connecting rotating plate (408), a plurality of positioning holes (404) are opened on the surface of the fixing plate (1), and the rod body of each positioning plug rod (405) passes through an adjacent positioning hole (404).

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