A new fan impeller dynamic balance detection device

Abstract

This utility model relates to the field of novel dynamic balancing testing devices for wind turbine impellers. It discloses a novel dynamic balancing testing device for wind turbine impellers, including a testing machine. Four support legs are fixedly connected to the bottom of the testing machine, and a fixed base is fixedly connected to the top of the testing machine. An impeller is mounted on the top of the fixed base. A housing is fixedly connected inside the testing machine, and a detector is slidably connected to the outside of the housing. A telescopic mechanism is provided inside the housing, which can adjust the displacement of the detector, adapting to impellers of different sizes and lengths, exhibiting wide adaptability and easy installation. In this utility model, the testing machine is stably placed by the support legs. A hydraulic cylinder inside the housing drives a connecting rod, which in turn drives a gear to rotate. The gear meshes with racks inside and outside the housing, causing the racks fixed to the detector to slide, thereby adjusting the detector's displacement to adapt to different impellers and completing the dynamic balancing test.

Description

Technical Field

[0001] This utility model relates to the field of novel dynamic balancing testing devices for wind turbine impellers, and in particular to a novel dynamic balancing testing device for wind turbine impellers. Background Technology

[0002] The new type of wind turbine impeller dynamic balancing testing device is used in the manufacturing, installation and operation and maintenance of impellers. By monitoring the vibration signal and centrifugal force deviation during rotation, it can accurately identify uneven mass distribution, quantitatively analyze its location and magnitude, and provide data support for correction, so as to achieve low vibration and high efficiency operation of wind turbines. It is widely used in power, chemical, metallurgical and other fields.

[0003] The device consists of a detection actuator, a sensing system, a data processing unit, and auxiliary components. The detection actuator fixes the impeller or positioning sensor through a mechanical structure. The sensing system integrates three types of sensors to collect vibration, displacement, and speed signals. The data processing unit generates unbalance information through chip filtering and analysis. The auxiliary components include drive, calibration, and interaction devices to ensure automated operation.

[0004] Traditional wind turbine impeller dynamic balancing testing devices have poor adaptability, are limited by specific dimensions, have resource redundancy of "one machine, one use", and are prone to positioning deviations when adjusting dimensions. They are also susceptible to local interference, which can lead to signal distortion and affect the accuracy of testing. Rigid contact can easily scratch the impeller and cannot adapt to hub deformation, which may damage the equipment and reduce the stability of testing.

[0005] To address this issue, a novel dynamic balancing testing device for wind turbine impellers is proposed. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a novel dynamic balancing testing device for wind turbine impellers, aiming to improve the problems of poor adaptability, inflexible adjustment, resource redundancy due to limitations of specific dimensions, easy deviation in adjustment, and signal distortion affecting accuracy in the existing technology of traditional dynamic balancing testing devices for wind turbine impellers.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a novel wind turbine impeller dynamic balancing testing device, comprising a testing machine, four legs fixedly connected to the bottom of the testing machine, a fixed base fixedly connected to the top of the testing machine, an impeller disposed on the top of the fixed base, a housing fixedly connected inside the testing machine, a detector slidably connected to the outside of the housing, a telescopic mechanism disposed inside the housing, the telescopic mechanism being adjustable to adjust the displacement of the detector, adapting to impellers of different sizes and lengths, having wide adaptability and being easy to install, and a clamping mechanism disposed on the top of the fixed base, the clamping mechanism being used to fix the impeller to ensure the stability of the impeller and prevent it from swaying left and right;

[0008] The telescopic mechanism includes a hydraulic cylinder, which is fixedly connected inside the housing. Two connecting rods are fixedly connected to the output end of the hydraulic cylinder, and a gear is rotatably connected between the two connecting rods. A rack is fixedly connected inside the housing, and a rack is slidably connected outside the housing.

[0009] As a further description of the above technical solution: the detector is externally fixedly connected to the outside of the rack two.

[0010] As a further description of the above technical solution: the gear meshes with the second rack and the first rack.

[0011] As a further description of the above technical solution: the clamping mechanism includes a fixed plate, a clamp is rotatably connected to the outside of the fixed plate, a bracket is fixedly connected to the top of the fixed base, a drive motor is fixedly connected to the top of the bracket, and a turntable is provided on the top of the testing machine.

[0012] As a further description of the above technical solution: the output end of the drive motor is fixedly connected inside the fixed plate.

[0013] As a further description of the above technical solution: the external part of the clamp is slidably connected to the inside of the turntable.

[0014] As a further description of the above technical solution: the inside of the clamp abuts against the outside of the impeller.

[0015] As a further description of the above technical solution: the turntable is rotatably connected to the outside of the fixed plate.

[0016] This utility model has the following beneficial effects:

[0017] 1. The testing machine is stably placed by the bottom support legs. The fixed housing inside the testing machine provides installation space for the telescopic mechanism. The hydraulic cylinder of the telescopic mechanism is fixed inside the housing and serves as a power source to drive two connecting rods through the output end. The gears rotatably connected between the connecting rods mesh with rack one fixed inside the housing and rack two sliding outside. The detector is fixed outside rack two. When the hydraulic cylinder drives the connecting rods to move, the gears rotate accordingly. By meshing with rack one and rack two, rack two is driven to slide, thereby enabling the detector to adjust its displacement to adapt to impellers of different sizes and lengths, thus completing the dynamic balance test of the impeller.

[0018] 2. When the drive motor is running, the output end of the drive motor drives the fixed plate to move, which in turn drives the clamp to slide inside the turntable. At the same time, with its own rotatable characteristics, its interior abuts against the outside of the impeller, which helps to clamp and fix the impeller. The rotational connection between the turntable and the fixed plate makes it easy to adjust the position of the clamp to adapt to different impellers. Attached Figure Description

[0019] Figure 1 This is a perspective view of a novel dynamic balancing testing device for wind turbine impellers proposed in this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the housing of a novel wind turbine impeller dynamic balancing testing device proposed in this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of a novel dynamic balancing testing device fixture for wind turbine impellers proposed in this utility model.

[0022] Legend:

[0023] 1. Testing machine; 2. Support leg; 3. Housing; 4. Fixing plate; 5. Drive motor; 6. Detector; 7. Hydraulic cylinder; 8. Connecting rod; 9. Gear; 10. Rack one; 11. Fixture; 12. Support; 13. Clamp; 14. Turntable; 15. Impeller; 16. Rack two. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figure 1 , Figure 2This utility model provides an embodiment of a novel wind turbine impeller dynamic balancing testing device, comprising a testing machine 1. Four support legs 2 are fixedly connected to the bottom of the testing machine 1 to support its stability. A fixed base 11 is fixedly connected to the top of the testing machine 1, and an impeller 15 is mounted on the top of the fixed base 11. The fixed base 11 provides a platform for the impeller 15, clearly defining its placement position and serving as the basis for subsequent testing and fixing of the impeller 15. A housing 3 is fixedly connected inside the testing machine 1, and a detector 6 is slidably connected to the outside of the housing 3. The housing 3 provides installation space for a telescopic mechanism, allowing the detector 6 to slide outside the housing 3 for easy position adjustment to test the impeller. The detector 6 is tested using a telescopic mechanism inside the housing 3. This mechanism can adjust the displacement of the detector 6, adapting to impellers 15 of different sizes and lengths. It has wide adaptability and is easy to install. The telescopic mechanism is the key to adjusting the position of the detector 6. By adjusting the displacement of the detector 6, the device can be used for various specifications of impellers 15, improving the versatility of the device. The simple installation method also lowers the threshold for use. The top of the fixed base 11 is equipped with a clamping mechanism, which is used to fix the impeller 15 to ensure its stability and prevent it from swaying left and right. By fixing the impeller 15, the clamping mechanism eliminates the influence of the impeller 15 swaying on the test results during the test, ensuring the accuracy of the test data.

[0026] The telescopic mechanism includes a hydraulic cylinder 7, which is fixedly connected inside the housing 3. Two connecting rods 8 are fixedly connected to the output end of the hydraulic cylinder 7. The hydraulic cylinder 7 provides power to the telescopic mechanism, driving the connecting rods 8 to move through the output end. It is the power source for the telescopic mechanism to achieve its telescopic function. A gear 9 is rotatably connected between the two connecting rods 8. A rack 10 is fixedly connected inside the housing 3, and a rack 2 slidably connected outside the housing 3. The meshing of the gear 9 and the rack lays the foundation for the displacement adjustment of the detector 6. The detector 6 is fixedly connected to the outside of the rack 2 16. The gear 9 meshes with the rack 2 16 and the rack 10. When the gear 9 rotates, it drives the rack 2 16 to slide by meshing with the rack 10 and the rack 2 16, thereby causing the detector 6 fixed on the rack 2 16 to move and complete the position adjustment of the detector 6.

[0027] Reference Figure 1 , Figure 3The clamping mechanism includes a fixed plate 4, to which a clamp 13 is rotatably connected. The fixed plate 4 provides a mounting base for the clamp 13, which can rotate to better accommodate and fix the impeller 15. A bracket 12 is fixedly connected to the top of the fixed base 11, and a drive motor 5 is fixedly connected to the top of the bracket 12. The bracket 12 supports the drive motor 5 and provides a stable mounting position for it. The drive motor 5 provides power for the operation of the clamping mechanism. A turntable 14 is provided on the top of the testing machine 1, and the output end of the drive motor 5 is fixedly connected to the fixed base 11. Inside the plate 4, the outside of the clamp 13 is slidably connected to the inside of the turntable 14. The turntable 14 provides a platform for the sliding of the clamp 13. The drive motor 5 drives the fixed plate 4 to move through the output end, thereby driving the clamping mechanism to operate. The inside of the clamp 13 abuts against the outside of the impeller 15. The turntable 14 is rotatably connected to the outside of the fixed plate 4. The clamp 13 can slide inside the turntable 14. The action of abutting against the impeller 15 realizes the clamping and fixing of the impeller 15. The rotatable connection between the turntable 14 and the fixed plate 4 makes it easy to adjust the position of the clamp 13 to adapt to different impellers 15.

[0028] Working principle: The testing machine 1 is stably placed by the bottom support legs 2. The housing 3 fixed inside the testing machine 1 provides installation space for the telescopic mechanism. The hydraulic cylinder 7 of the telescopic mechanism is fixed inside the housing 3 and serves as a power source to drive the two connecting rods 8 through the output end. The gear 9 rotatably connected between the connecting rods 8 meshes with the rack 10 fixed inside the housing 3 and the rack 2 slidable outside. The detector 6 is fixed outside the rack 2 16. When the hydraulic cylinder 7 drives the connecting rods 8 to move, the gear 9 rotates accordingly. By meshing with the rack 10 and rack 2 16, the rack 2 16 is driven to slide, thereby enabling the detector 6 to adjust its displacement to adapt to impellers 15 of different sizes and lengths, thus completing the dynamic balance test of the impeller 15.

[0029] When the drive motor 5 is running, the output end of the drive motor 5 drives the fixed plate 4 to move, thereby driving the clamp 13 to slide in the turntable 14. At the same time, with its own rotatable characteristics, its interior abuts against the outside of the impeller 15, thus achieving clamping and fixing of the impeller 15. The rotatable connection between the turntable 14 and the fixed plate 4 makes it easy to adjust the position of the clamp 13 to adapt to different impellers 15.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A new type of fan impeller dynamic balance detection device, comprising a detection machine (1), characterized in that: The bottom of the testing machine (1) is fixedly connected with four support legs (2), the top of the testing machine (1) is fixedly connected with a fixed base (11), the top of the fixed base (11) is provided with an impeller (15), the inside of the testing machine (1) is fixedly connected with a housing (3), the outside of the housing (3) is slidably connected with a detector (6), the inside of the housing (3) is provided with a telescopic mechanism, the telescopic mechanism can adjust the displacement of the detector (6), can adapt to impellers of different sizes and lengths, has wide adaptability and is easy to install, the top of the fixed base (11) is provided with a clamping mechanism, the clamping mechanism is used to fix the impeller (15) to ensure the fixed stability of the impeller and prevent it from swaying left and right; The telescopic mechanism includes a hydraulic cylinder (7), which is fixedly connected inside the housing (3). The output end of the hydraulic cylinder (7) is fixedly connected to two connecting rods (8), and a gear (9) is rotatably connected between the two connecting rods (8). A rack one (10) is fixedly connected inside the housing (3), and a rack two (16) is slidably connected outside the housing (3).

2. A novel fan impeller dynamic balancing detection device according to claim 1, characterized in that: The detector (6) is externally fixedly connected to the outside of the rack (16).

3. The novel fan impeller dynamic balancing detection device according to claim 1, characterized in that: The gear (9) meshes with the second rack (16) and the first rack (10).

4. The novel fan impeller dynamic balancing detection device according to claim 1, characterized in that: The clamping mechanism includes a fixed plate (4), a clamp (13) is rotatably connected to the outside of the fixed plate (4), a bracket (12) is fixedly connected to the top of the fixed base (11), a drive motor (5) is fixedly connected to the top of the bracket (12), and a turntable (14) is provided on the top of the testing machine (1).

5. A novel fan impeller dynamic balancing detection device according to claim 4, characterized in that: The output end of the drive motor (5) is fixedly connected inside the fixed plate (4).

6. A novel fan impeller dynamic balancing detection device according to claim 4, characterized in that: The clamp (13) is externally slidably connected to the inside of the turntable (14).

7. A novel fan impeller dynamic balancing detection device according to claim 4, characterized in that: The inside of the clamp (13) abuts against the outside of the impeller (15).

8. The novel fan impeller dynamic balancing detection device according to claim 4, characterized in that: The turntable (14) is rotatably connected to the outside of the fixed plate (4).

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