Generator air gap uniformity detection device

Abstract

The utility model provides a generator air gap uniformity detection device, which relates to the technical field of air gap detection and comprises a positioning box, guide columns are slidably mounted in the middles of two sides of the positioning box, top plates are fixedly mounted at the top ends of the two guide columns, a driving assembly is arranged on the inner wall of the positioning box and connected with the guide columns in a matched manner, and the top plates are fixedly mounted at the top ends of the guide columns. A worker rotates the lead screw, the lead screw is matched with the lead screw thread sleeve to move forwards, the lead screw drives the movable plate to move forwards, at the moment, the shovel plate can be driven to move forwards, and due to the fact that the shovel plate is arranged from thin to thick, when the shovel plate moves forwards, the shovel plate can be driven to move forwards. The shovel plate can drive the two guide columns to move away from each other. The surfaces of the two top plates are attached to the rotor and the positioning surface respectively to measure the distance between the two top plates, so that the generator air gap is tested, and due to the fact that the positioning box is rectangular, the device can test any position of the generator air gap.

Description

Technical Field

[0001] The utility model relates to the technical field of air gap detection, in particular to a generator air gap uniformity detection device. Background Art

[0002] In a generator, the size of the air gap between the rotor and the stator determines the size of the magnetic flux. If the air gap is uneven, the induced electromotive force and current generated in the rotor winding will be reduced, so the air gap is a particularly important parameter indicator in the generator. The uniformity of the air gap will directly affect the stability of the generator, so it is necessary to detect the air gap of the generator, such as patent application number CN201811288924.0, a wind turbine air gap measurement device, including a protective cylinder, a rotor installed inside the stator, a radial air gap between the inner wall of the stator and the outer wall of the rotor, and an axial air gap between the inner end face of the stator and the end face of the rotor; a detection slide is provided on the stator, and the detection slide and the detection slider can be slidably assembled, and the sliding direction is the axial direction of the stator; a radial eddy current sensor is installed in the detection slider, and a plurality of first sensing strips are provided on the circumference of the rotor; the stator The two ends are respectively assembled and fixed to one end of the first rotating shaft and the second rotating shaft, and the other ends of the first rotating shaft and the second rotating shaft respectively pass through the first partition plate and the fourth partition plate and then extend out of the protective tube; the end of the detection slider away from the rotor is installed in the detection sliding hole, the detection sliding hole is arranged on the sliding ring and extends into the power block, there are at least two power blocks and the power blocks are connected and fixed by connecting arc plates, thereby forming a sliding ring, and the inner side of the sliding ring is in contact with the outer wall of the stator; a power screw hole is arranged on the power block, and the above device can only detect the position of the fixed generator air gap, and cannot objectively detect the generator air gap. Utility Model Content

[0003] The main purpose of the utility model is to provide a generator air gap uniformity detection device, which can effectively solve the problem that the background technology can only detect the fixed position of the generator air gap and cannot objectively detect the generator air gap.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a generator air gap uniformity detection device, including a positioning box, guide columns are slidably installed in the middle of both sides of the positioning box, top plates are fixedly installed on the top of the two guide columns, and a driving assembly is arranged on the inner wall of the positioning box, and the driving assembly is cooperatively connected with the guide columns.

[0005] Preferably, a scale is provided on one side of the positioning box.

[0006] Preferably, a mounting hole is provided on the surface of the top plate, and an internal thread is provided on the inner wall of the mounting hole.

[0007] Preferably, an external thread is provided on the side surface of the top end of the guide column, the top end of the guide column is arranged in the mounting hole, and the external thread is meshed and connected with the internal thread.

[0008] Preferably, the driving assembly comprises a moving plate, a slide groove, and a screw rod, wherein the moving plate is slidably mounted on the inner surface of the positioning box, the slide groove is provided on the inner surface of the positioning box, the screw rod is mounted on the positioning box via a screw rod sleeve, and one end of the screw rod is rotatably mounted on the surface of the moving plate. A turntable is fixedly mounted on the other end of the screw rod.

[0009] Preferably, sliding blocks are fixedly mounted on both side surfaces of the movable plate, and the sliding blocks are slidably mounted inside the sliding grooves.

[0010] Preferably, a shovel plate is fixedly mounted on the front surface of the movable plate, and the shovel plate is located between two guide pillars.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] (1) Insert the positioning box between the rotor and the stator, and move the top plate to the appropriate position. At this time, the staff rotates the screw rod to make the screw rod cooperate with the screw rod sleeve to move forward, so that the screw rod drives the moving plate to move forward. At this time, the shovel plate can be driven to move forward. Because the shovel plate is set from thin to thick, when the shovel plate moves forward, the shovel plate will drive the two guide columns to move away from each other. Make the surfaces of the two top plates fit the rotor and the positioning surface respectively. At this time, take the positioning box out of the rotor and the inside of the electronics, and measure the distance between the two top plates. In this way, the generator air gap can be tested. Because the positioning box is set in a rectangular shape, the device can test any position of the generator air gap, which improves the detection efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of a generator air gap uniformity detection device of the utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of a positioning box of a generator air gap uniformity detection device of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of a movable plate of a generator air gap uniformity detection device of the utility model;

[0016] Figure 4 This is a schematic diagram of the top plate structure of a generator air gap uniformity detection device of the utility model;

[0017] Figure 5 The utility model is a schematic diagram of the guide column structure of a generator air gap uniformity detection device.

[0018] In the figure: 1. positioning box; 2. top plate; 3. guide column; 4. scale; 5. drive assembly; 501. shovel plate; 502. moving plate; 503. screw; 504. screw sleeve; 505. turntable; 506. slider; 507. slide groove; 6. mounting hole; 7. internal thread; 8. external thread. DETAILED DESCRIPTION

[0019] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figure 1 , 2 As shown in FIG. 3 , a generator air gap uniformity detection device includes a positioning box 1, guide columns 3 are slidably installed in the middle of both sides of the positioning box 1, top plates 2 are fixedly installed on the top of the two guide columns 3, and a driving component 5 is provided on the inner wall of the positioning box 1, and the driving component 5 is connected with the guide columns 3.

[0021] like Figure 1 As shown, a scale 4 is provided on one side of the positioning box 1 , and the scale 4 allows the staff to observe the depth of the positioning box 1 .

[0022] like Figure 1 , 4 As shown in Figures 5 and 6, a mounting hole 6 is provided on the surface of the top plate 2, an internal thread 7 is provided on the inner wall of the mounting hole 6, an external thread 8 is provided on the side of the top end of the guide column 3, the top end of the guide column 3 is set in the mounting hole 6, and the external thread 8 is meshed with the internal thread 7. By setting the top end of the guide column 3 in the mounting hole 6 and the external thread 8 is meshed with the internal thread 7, it is convenient for the staff to replace the top plate 2, and different top plates 2 can be replaced according to the usage.

[0023] like Figure 2 , 3As shown, the driving assembly 5 includes a moving plate 502, a slide groove 507, and a screw rod 503. The moving plate 502 is slidably installed on the inner surface of the positioning box 1. The slide groove 507 is opened on the inner surface of the positioning box 1. The screw rod 503 is installed on the positioning box 1 through a screw rod sleeve 504. One end of the screw rod 503 is rotatably set on the surface of the moving plate 502. A turntable 505 is fixedly installed on the other end of the screw rod 503, and sliders 506 are fixedly installed on both side surfaces of the moving plate 502. The sliders 506 are slidably installed in the slide grooves 507. A shovel plate 501 is fixedly installed on the front surface of the moving plate 502, and the shovel plate 501 is located between the two guide columns 3. The positioning box 1 is inserted between the rotor and the stator, and the top plate 2 is moved to a suitable position. At this time, the staff rotates the screw rod 503 to make the screw rod 503 cooperate with the screw rod screw sleeve 504 to move forward, so that the screw rod 503 drives the moving plate 502 to move forward. Because the moving plate 502 is slidably installed on the inner surface of the positioning box 1, the slide groove 507 is opened on the inner surface of the positioning box 1, the screw rod 503 is installed on the positioning box 1 through the screw rod screw sleeve 504, and one end of the screw rod 503 is rotatably set on the surface of the moving plate 502. A turntable 505 is fixedly installed at the other end of the screw rod 503, and sliders 506 are fixedly installed on both sides of the moving plate 502. The sliders 506 are slidably installed inside the slide slots 507. A shovel plate 501 is fixedly installed on the front surface of the moving plate 502. The shovel plate 501 is located between the two guide pillars 3. At this time, the shovel plate 501 can be driven to move forward. Because the shovel plate 501 is set from thin to thick, when the shovel plate 501 moves forward, the shovel plate 501 will drive the two guide pillars 3 to move away from each other. The surfaces of the two top plates 2 are respectively attached to the rotor and the positioning surface. At this time, the positioning box 1 is taken out from the rotor and the inside of the electronic device. At this time, the distance between the two top plates 2 is measured, so as to test the generator air gap. Because the positioning box 1 is set in a rectangular shape, the device can test any position of the generator air gap, thereby improving the detection efficiency of the device.

[0024] The working principle of this generator air gap uniformity detection device:

[0025] During use, when this device is needed to detect the air gap of the generator, first insert the positioning box 1 between the rotor and the stator, and move the top plate 2 to a suitable position. At this time, the staff rotates the screw rod 503 to make the screw rod 503 cooperate with the screw rod sleeve 504 to move forward, so that the screw rod 503 drives the movable plate 502 to move forward. Because the movable plate 502 is slidably installed on the inner surface of the positioning box 1, the slide groove 507 is opened on the inner surface of the positioning box 1, the screw rod 503 is installed on the positioning box 1 through the screw rod sleeve 504, and one end of the screw rod 503 is rotatably set on the surface of the movable plate 502. A turntable 505 is fixedly installed at the other end of the screw rod 503, and sliders 506 are fixedly installed on both sides of the moving plate 502. The sliders 506 are slidably installed inside the slide slots 507. A shovel plate 501 is fixedly installed on the front surface of the moving plate 502. The shovel plate 501 is located between the two guide pillars 3. At this time, the shovel plate 501 can be driven to move forward. Because the shovel plate 501 is set from thin to thick, when the shovel plate 501 moves forward, the shovel plate 501 will drive the two guide pillars 3 to move away from each other. The surfaces of the two top plates 2 are respectively attached to the rotor and the positioning surface. At this time, the positioning box 1 is taken out from the rotor and the inside of the electronic device. At this time, the distance between the two top plates 2 is measured, so as to test the generator air gap. Because the positioning box 1 is set in a rectangular shape, the device can test any position of the generator air gap, thereby improving the detection efficiency of the device.

[0026] 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 based on 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 scope of protection of the present invention.

Claims

1. A generator air gap uniformity detection device, comprising a positioning box (1), characterized in that: Guide columns (3) are slidably mounted in the middle of both sides of the positioning box (1), and top plates (2) are fixedly mounted on the tops of the two guide columns (3). A driving assembly (5) is arranged on the inner wall of the positioning box (1), and the driving assembly (5) is cooperatively connected with the guide columns (3).

2. A generator air gap uniformity detection device according to claim 1, characterized in that: A scale (4) is provided on one side of the positioning box (1).

3. A generator air gap uniformity detection device according to claim 1, characterized in that: A mounting hole (6) is provided on the surface of the top plate (2), and an internal thread (7) is provided on the inner wall of the mounting hole (6).

4. A generator air gap uniformity detection device according to claim 3, characterized in that: The top side of the guide column (3) is provided with an external thread (8), the top of the guide column (3) is arranged in the mounting hole (6), and the external thread (8) is meshedly connected with the internal thread (7).

5. A generator air gap uniformity detection device according to claim 1, characterized in that; The driving assembly (5) comprises a moving plate (502), a slide groove (507), and a screw rod (503); the moving plate (502) is slidably mounted on the inner surface of the positioning box (1); the slide groove (507) is provided on the inner surface of the positioning box (1); the screw rod (503) is mounted on the positioning box (1) via a screw rod sleeve (504); one end of the screw rod (503) is rotatably mounted on the surface of the moving plate (502); and the other end of the screw rod (503) is fixedly mounted with a turntable (505).

6. A generator air gap uniformity detection device according to claim 5, characterized in that: Slide blocks (506) are fixedly mounted on both side surfaces of the movable plate (502), and the slide blocks (506) are slidably mounted inside the slide grooves (507).

7. A generator air gap uniformity detection device according to claim 6, characterized in that: A shovel plate (501) is fixedly mounted on the front surface of the movable plate (502), and the shovel plate (501) is located between two guide pillars (3).

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