A fan impeller dynamic balance testing device

Abstract

The utility model relates to fan impeller dynamic balance test technical field especially, it relates to a fan impeller dynamic balance test device, including base, still include: fixed base, the fixed base left and right symmetrical setting has two, the bottom side of base is opened and has removed the groove, the sliding connection of removal groove has the connecting seat a, the bottom side of connecting seat a and base is fixedly connected with two fixed bases respectively, two fixed bases upside fixedly connect with two connecting plates, the interval between two screw rods b is adjusted through the length adjustment of fan impeller left and right sides screw hole, and the fan impeller is inserted on two screw rods b through the screw hole, and the fan impeller is fixed on screw rod b through the nut on screw rod b, so as to adapt to different models fan impeller, solved the existing device when fixing the impeller rotating shaft of different specifications, the operation is more complicated, and the time is longer, makes the test efficiency lower problem.

Description

Technical Field

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

[0002] The impeller is a core component of fluid machinery such as centrifugal fans and axial fans. Its design, material and operating status directly affect the performance (efficiency, air pressure, air volume, noise) and lifespan of the fan.

[0003] Chinese Utility Model Patent Application No. 202122745046.4 discloses a high-speed rotating dynamic balancing testing device for impellers. The device includes a worktable and a placement platform mounted on top of the worktable. A balance shaft is mounted on the top of the worktable via a connecting block. The balance shaft has a groove at a horizontal position parallel to the placement platform. A test roller is mounted on top of the balance shaft. The test roller is hollow and contains an impeller fixing mechanism. A limiting component is fixedly mounted on the outside of the test roller. The impeller fixing mechanism includes a control component, a clamping mechanism, and a limiting mechanism. The control component passes through the clamping and limiting mechanisms, and the clamping mechanism is located on the side of the limiting component away from the bottom of the control component. This high-speed rotating dynamic balancing testing device for impellers can operate the internal parts of the clamping and limiting mechanisms via the control component, thereby stably fixing impellers of different diameters. The operation is simple and convenient.

[0004] The dynamic balancing testing equipment described above is cumbersome and time-consuming when fixing impeller shafts of different specifications during the testing process, resulting in low testing efficiency. Utility Model Content

[0005] To address the problems mentioned in the background section, this invention provides a dynamic balancing testing device for wind turbine impellers.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a wind turbine impeller dynamic balancing testing device, including a base, and further comprising:

[0007] The base has two fixed seats arranged symmetrically on the left and right. A movable groove is opened on the upper side of the base. A connecting seat a is slidably connected in the movable groove. Two fixed seats are fixedly connected to the connecting seat a and the upper side of the base. Two connecting plates are fixedly connected to the upper side of the two fixed seats. Two rotating shafts are rotatably connected in the left side plate of the two connecting plates. Two fixed brackets are fixedly connected to the opposite side of the two rotating shafts. Two connecting seats b are slidably connected in the fixed brackets. A screw b is fixedly connected to the right connecting seat b. Two nuts are engaged on the screw b.

[0008] The moving mechanism is used to drive the connecting seat a to move to the left;

[0009] An adjusting mechanism is used to drive the two connecting seats b to move away from each other.

[0010] Preferably, the moving mechanism includes a servo motor a and a screw a. The servo motor a is fixedly connected to the inner wall of the right side of the moving groove, the screw a is rotatably connected to the moving groove, the output shaft of the servo motor a is fixedly connected to the screw a, and the connecting seat a meshes with the screw a.

[0011] Preferably, the connecting plate has two slots on its front and rear sides.

[0012] Preferably, a limiting groove is provided on the upper side of the base, a limiting block is fixedly connected to the lower side of the fixed seat, and the limiting block is slidably connected in the limiting groove.

[0013] Preferably, the adjusting mechanism includes a servo motor b and a bidirectional lead screw. The servo motor b is fixedly connected to the front side of the fixed frame, and the bidirectional lead screw is rotatably connected inside the fixed frame. The output shaft of the servo motor b extends into the fixed frame and is fixedly connected to the bidirectional lead screw. The two connecting seats b respectively engage with the threaded grooves on the bidirectional lead screw with opposite directions of rotation.

[0014] Preferably, the right side of the connecting seat b on the left side has a through-hole.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention adjusts the distance between two screws b according to the length of the screw holes on the left and right sides of the fan impeller. The fan impeller is inserted into the two screws b through the screw holes, and the fan impeller is fixed to the screws b by the nuts on the screws b. This adapts to different models of fan impellers and solves the problem that the existing device is cumbersome and time-consuming when fixing impeller shafts of different specifications, resulting in low testing efficiency.

[0017] In this invention, a servo motor a drives a screw a to rotate. The rotation of screw a causes the connecting seat a, the right fixed seat, the fixed plate, and the connecting plate to move to the left and closer to the left fixed seat, so that screw b is inserted into the insertion hole. The dynamic balancing test equipment drives the left rotating shaft to rotate through the coupling. The rotation of the left rotating shaft causes the left fixed frame, screw b, and the fan impeller fixed on screw b to rotate, thereby performing a dynamic balancing test. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the movable groove in this utility model;

[0021] Figure 3 This is an enlarged structural diagram of point A in this utility model;

[0022] In the diagram: 1. Base; 2. Movable slot;

[0023] Moving mechanism: 31. Servo motor a; 32. Screw a; 33. Connecting seat a;

[0024] 4. Fixing base; 5. Fixing plate; 6. Connecting plate; 7. Rotating shaft; 8. Slot; 9. Fixing bracket; 10. Screw b; 11. Nut;

[0025] Adjustment mechanism: 121, servo motor b; 122, bidirectional lead screw; 123, connecting seat b;

[0026] 13. Limiting groove; 14. Limiting block; 15. Insertion hole. Detailed Implementation

[0027] 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.

[0028] Example

[0029] Please see Figures 1-3 This utility model provides the following technical solution: a wind turbine impeller dynamic balancing test device, including a base 1, and further comprising:

[0030] There are two fixed seats 4 arranged symmetrically on the left and right. The upper side of the base 1 has a moving groove 2. The moving groove 2 is slidably connected to the connecting seat a33. The connecting seat a33 and the upper side of the base 1 are respectively fixed to two fixed seats 4. The upper side of the two fixed seats 4 is fixed to two connecting plates 6. The left side of the two connecting plates 6 is rotatably connected to two rotating shafts 7. The opposite side of the two rotating shafts 7 is fixed to two fixed brackets 9. The fixed brackets 9 are slidably connected to two connecting seats b123. The right side of the connecting seat b123 is fixed to a screw b10. Two nuts 11 are engaged on the screw b10.

[0031] The moving mechanism is used to drive the connecting seat a33 to move to the left;

[0032] Adjustment mechanism, used to drive the two connecting seats b123 away from each other.

[0033] Specifically, the moving mechanism includes a servo motor a31 and a screw a32. The servo motor a31 is fixed to the inner wall of the right side of the moving groove 2, and the screw a32 is rotatably connected in the moving groove 2. The output shaft of the servo motor a31 is fixed to the screw a32, and the connecting seat a33 meshes with the screw a32.

[0034] Specifically, two slots 8 are provided on the front and rear sides of the connecting plate 6;

[0035] Servo motor a31 drives screw a32 to rotate. The rotation of screw a32 causes connecting seat a33, right fixed seat 4, fixed plate 5 and connecting plate 6 to move to the left and closer to left fixed seat 4, so that screw b10 is inserted into socket 15. The dynamic balancing test equipment drives left rotating shaft 7 to rotate through coupling. The rotation of left rotating shaft 7 drives left fixed frame 9, screw b10 and fan impeller fixed on screw b10 to rotate, so as to perform dynamic balancing test.

[0036] Specifically, a limiting groove 13 is provided on the upper side of the base 1, and a limiting block 14 is fixedly connected to the lower side of the fixed seat 4. The limiting block 14 is slidably connected in the limiting groove 13.

[0037] The movement of the connecting seat a33 causes the right fixed seat 4 to move in the same direction. The movement of the fixed seat 4 causes the limiting block 14 to move within the limiting groove 13, thereby limiting the right fixed seat 4 through the limiting block 14 and the limiting groove 13.

[0038] Specifically, the adjustable distance mechanism includes a servo motor b121 and a bidirectional lead screw 122. The servo motor b121 is fixedly connected to the front side of the fixed frame 9, and the bidirectional lead screw 122 is rotatably connected inside the fixed frame 9. The output shaft of the servo motor b121 extends into the fixed frame 9 and is fixedly connected to the bidirectional lead screw 122. The two connecting seats b123 respectively mesh with the threaded grooves with opposite directions of rotation on the bidirectional lead screw 122.

[0039] Specifically, a socket 15 is provided through the right side of the left connector b123;

[0040] The servo motor b121 drives the bidirectional lead screw 122 to rotate, and the rotation of the bidirectional lead screw 122 causes the two connecting seats b123 to move away from each other.

[0041] Adjust the distance between the two screws b10 according to the length of the screw holes on the left and right sides of the fan impeller. Insert the screw holes of the fan impeller into the two screws b10. Fix the fan impeller to the screws b10 with the nuts 11 on the screws b10. This can accommodate different models of fan impellers.

[0042] Working principle and usage process of this utility model:

[0043] In use, this utility model is as follows:

[0044] Adjust the spacing between the two screws b10 according to the length of the screw holes on the left and right sides of the fan impeller. The fan impeller is inserted into the two screws b10 through the screw holes. The fan impeller is fixed to the screws b10 by the nuts 11 on the screws b10. This is to accommodate different models of fan impellers. The servo motor a31 drives the screw a32 to rotate. The rotation of the screw a32 drives the connecting seat a33, the right fixed seat 4, the fixed plate 5 and the connecting plate 6 to move to the left and closer to the left fixed seat 4, so that the screw b10 is inserted into the insertion hole 15. The dynamic balancing test equipment drives the left rotating shaft 7 to rotate through the coupling. The rotation of the left rotating shaft 7 drives the left fixed frame 9, the screw b10 and the fan impeller fixed on the screw b10 to rotate, so as to perform dynamic balancing test.

[0045] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0046] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A dynamic balancing test device for a wind turbine impeller, comprising a base (1), characterized in that, Also includes: Fixed base (4), two fixed bases (4) are symmetrically arranged on the left and right. The upper side of the base (1) is provided with a moving groove (2). A connecting seat a (33) is slidably connected in the moving groove (2). Two fixed bases (4) are fixedly connected to the upper side of the connecting seat a (33) and the base (1). Two connecting plates (6) are fixedly connected to the upper side of the two fixed bases (4). Two rotating shafts (7) are rotatably connected in the left side plate of the two connecting plates (6). Two fixed frames (9) are fixedly connected to the opposite side of the two rotating shafts (7). Two connecting seats b (123) are slidably connected in the fixed frames (9). A screw b (10) is fixedly connected to the right side of the connecting seat b (123). Two nuts (11) are engaged on the screw b (10). The moving mechanism is used to drive the connecting seat a (33) to move to the left; An adjusting mechanism is provided for driving two connecting seats b (123) to move away from each other.

2. The wind turbine impeller dynamic balancing test device according to claim 1, characterized in that: The moving mechanism includes a servo motor a (31) and a screw a (32). The servo motor a (31) is fixed to the inner wall of the right side of the moving groove (2). The screw a (32) is rotatably connected in the moving groove (2). The output shaft of the servo motor a (31) is fixed to the screw a (32). The connecting seat a (33) meshes with the screw a (32).

3. The wind turbine impeller dynamic balancing test device according to claim 1, characterized in that: The connecting plate (6) has two slots (8) on its front and rear sides.

4. The wind turbine impeller dynamic balancing test device according to claim 1, characterized in that: The base (1) has a limiting groove (13) on its upper side, and the fixed seat (4) is fixedly connected to a limiting block (14) on its lower side. The limiting block (14) is slidably connected inside the limiting groove (13).

5. The wind turbine impeller dynamic balancing test device according to claim 1, characterized in that: The adjusting mechanism includes a servo motor b (121) and a bidirectional lead screw (122). The servo motor b (121) is fixedly connected to the front side of the fixed frame (9). The bidirectional lead screw (122) is rotatably connected inside the fixed frame (9). The output shaft of the servo motor b (121) extends into the fixed frame (9) and is fixedly connected to the bidirectional lead screw (122). The two connecting seats b (123) respectively mesh with the threaded grooves on the bidirectional lead screw (122) with opposite directions of rotation.

6. The wind turbine impeller dynamic balancing test device according to claim 1, characterized in that: The right side of the connecting seat b (123) on the left side is provided with a through hole (15).

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