Dynamic balance detection equipment for generator rotor

Abstract

The utility model relates to the technical field of generator rotor detection, in particular to dynamic balance detection equipment for a generator rotor, which comprises a test platform provided with a transmission motor. A transmission shaft; the end portion of the transmission shaft is fixedly connected with a coupler, the test platform is provided with a rapid locking device, and the rapid locking device is provided with an auxiliary supporting device. According to the utility model, the effect of rapidly braking the transmission shaft is realized through the rapid locking device by utilizing the friction force of extrusion, so that the purpose of braking the generator rotor under inertia rotation is realized, an operator can conveniently and rapidly disassemble and replace the rotor after rapid locking and braking, the blanking speed of the detected rotor is improved, and the working efficiency is improved. Therefore, the purpose of improving the overall rotor detection rate is achieved, the rotor is temporarily supported through the auxiliary supporting device in the mounting or dismounting period, and the purpose of conveniently mounting and dismounting the rotor can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of generator rotor detection, in particular to a dynamic balance detection device for a generator rotor. Background Art

[0002] The generator rotor is the rotating part of the generator, which is mainly composed of conductive rotor winding, magnetic iron core, rotor shaft extension, guard ring, center ring and fan. After the production and processing of the generator rotor is completed, dynamic balancing test equipment is needed to perform dynamic balancing test on the rotor to ensure the stable use of the rotor.

[0003] The existing testing equipment utilizes a test motor and a belt-driven rotating shaft to drive the rotor installed thereon to rotate, and the other end of the rotor is connected to the dynamic balancing testing equipment through a coupling to test the generator rotor. The larger the generator rotor being tested, the longer the downtime required after the test. The operator can only perform subsequent rotor testing after waiting for the generator rotor to stop. There is a problem of waiting for the stop time after each rotor test, which will lead to the problem of low overall generator rotor testing efficiency. At the same time, the larger the generator rotor, the greater its gravity. The traditional generator rotor installation method is manual alignment installation. During the installation, the operator needs to continuously hold the rotor. The larger rotor is not convenient for the operator to install and disassemble it during the test. In view of this, we propose a dynamic balancing testing device for the generator rotor. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a dynamic balance detection device for a generator rotor, which solves the problems raised in the above background technology. To achieve the above purpose, the utility model is implemented through the following technical solutions: a dynamic balance detection device for a generator rotor, including a test platform, a transmission motor is installed on the test platform, the output shaft of the transmission motor is connected to a transmission shaft through a pulley and a belt drive, the end of the transmission shaft is fixedly connected to a coupling, a quick locking device is arranged on the test platform, an auxiliary support device is arranged on the quick locking device, the quick locking device is used to automatically brake the transmission shaft after detection, and at the same time drive the auxiliary support device to adaptively support the generator rotor.

[0005] Preferably, the rapid locking device includes a fixed ring seat and a driving device, one end of the fixed ring seat is fixedly connected to the test platform, the other end of the fixed ring seat is rotatably connected to a turntable, the inner wall of the turntable is fixedly connected to an extrusion block, the interior of the fixed ring seat is fixedly connected to a limiting column, the end of the limiting column is elastically connected to a chuck via a spring, the interior of the chuck is fixedly connected to a sliding column, one end of the sliding column is rotatably connected to a rolling ball, and the other end of the sliding column is fixedly connected to a protrusion.

[0006] Preferably, the surface of the sliding column is slidably connected to the inside of the limiting column, and the surface of the protrusion is slidably connected to the inner wall of the rotating disk.

[0007] Preferably, the driving device comprises an electric push rod, the electric push rod is installed on the test platform, the output shaft of the electric push rod is connected to a driving base, and a rack is fixedly connected to the driving base.

[0008] Preferably, the surface of the rack engages with the surface of the turntable, and the surface of the rack is slidably connected to the test platform.

[0009] Preferably, the auxiliary support device includes a rotating screw seat, the end of which is rotatably connected to the driving base, the internal thread of the rotating screw seat is connected to an adjusting rod, the end of the adjusting rod is fixedly connected to a support plate, and the end of the support plate is fixedly connected to a limiting rod.

[0010] Preferably, a rotating handle is fixedly connected to the rotating screw seat, and the surface of the limiting rod is slidably connected in the driving base.

[0011] It can be seen from the above technical solutions that the dynamic balance detection device for a generator rotor provided in the embodiments of this specification has at least the following beneficial effects:

[0012] (1) The utility model uses the friction force of extrusion through the rapid locking device to achieve the effect of rapid braking of the transmission shaft, thereby achieving the purpose of braking the generator rotor under inertial rotation. After rapid locking and braking, it is convenient for the operator to quickly disassemble and replace the rotor, thereby improving the rotor unloading rate after inspection, thereby achieving the purpose of improving the overall rotor inspection rate. The auxiliary support device temporarily supports the rotor during installation or disassembly, thereby achieving the purpose of convenient installation and disassembly of the rotor.

[0013] (2) The utility model realizes the effect of height adjustment of the adjusting rod by rotating the screw seat. The height adjustment of the adjusting rod realizes the effect of adjusting the distance between the rotor on the support plate and the axis of the coupling, thereby meeting the purpose of moving and aligning rotors of different diameters. The applicability and practicality of the test platform for dynamic balancing detection of generator rotors of different models and sizes are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2This is a schematic diagram of the structure of the fixed ring seat in the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the rapid locking device in the utility model;

[0018] Figure 4 This is a structural schematic diagram of the sliding column in the utility model;

[0019] Figure 5 It is a structural schematic diagram of the auxiliary support device in the utility model.

[0020] In the figure: 1. test platform; 2. transmission motor; 3. transmission shaft; 4. coupling; 5. quick locking device; 51. fixed ring seat; 52. turntable; 53. extrusion block; 54. limit column; 55. chuck; 56. slide column; 57. rolling ball; 58. bump; 6. auxiliary support device; 61. rotating screw seat; 62. adjustment rod; 63. support plate; 64. limit rod; 7. driving device; 71. electric push rod; 72. driving base; 73. rack. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in 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 in 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.

[0022] Example 1

[0023] See also Figure 1-Figure 5 As shown, a dynamic balancing detection device for a generator rotor comprises a test platform 1, a transmission motor 2 is installed on the test platform 1, the output shaft of the transmission motor 2 is connected to a transmission shaft 3 through a pulley and a belt drive, the end of the transmission shaft 3 is fixedly connected to a coupling 4, a quick locking device 5 is arranged on the test platform 1, an auxiliary supporting device 6 is arranged on the quick locking device 5, the quick locking device 5 is used to automatically brake the transmission shaft 3 after detection, and at the same time drive the auxiliary supporting device 6 to adaptively support the generator rotor, the operator respectively installs the two ends of the generator rotor to two corresponding couplings 4, drives the transmission shaft 3 to drive the generator rotor on the coupling 4 to rotate by starting the transmission motor 2, and performs dynamic balancing detection on the rotor by using the detection device on the other end of the coupling 4 during rotation.

[0024] In this embodiment, the rapid locking device 5 includes a fixed ring seat 51 and a driving device 7. One end of the fixed ring seat 51 is fixedly connected to the test platform 1, and the other end of the fixed ring seat 51 is rotatably connected to a turntable 52. The inner wall of the turntable 52 is fixedly connected to an extrusion block 53. The interior of the fixed ring seat 51 is fixedly connected to a limit column 54, and the end of the limit column 54 is elastically connected to a chuck 55 through a spring. The spring is set to elastically position the sliding column 56 as a whole to ensure that it does not contact the transmission shaft 3 under normal conditions, thereby not affecting the effect of the normal rotation test of the rotor, and at the same time, the elastic force can be used to achieve the movement reset work of the sliding column 56. The interior of the chuck 55 is fixedly connected to a sliding column 56, one end of the sliding column 56 is rotatably connected to a rolling ball 57, and the other end of the sliding column 56 is fixedly connected to a protrusion 58, such as Figure 3 As shown, inclined surfaces are provided at both ends of the extrusion block 53, which facilitates sliding connection on the protrusion 58. The surface of the slide post 56 is slidably connected to the inside of the limit post 54, and the surface of the protrusion 58 is slidably connected to the inner wall of the turntable 52. The extrusion block 53 is driven by the turntable 52 to extrude the protrusion 58. After the protrusion 58 is subjected to force, the sliding post 56 drives the rolling ball 57 to lock the transmission shaft 3. The friction force of the extrusion is used to achieve the effect of rapid braking of the transmission shaft 3, and then achieve the purpose of braking the generator rotor under inertial rotation. After rapid locking and braking, it is convenient for the operator to quickly disassemble and replace the rotor, improve the material discharge rate of the rotor after detection, and then achieve the purpose of improving the overall rotor detection rate.

[0025] Furthermore, the driving device 7 includes an electric push rod 71, which is installed on the test platform 1. The output shaft of the electric push rod 71 is connected to a driving base 72, and a rack 73 is fixedly connected to the driving base 72. The surface of the rack 73 engages with the surface of the turntable 52, and the surface of the rack 73 is slidably connected to the test platform 1. The driving device 7 realizes the effect of automatically driving the turntable 52 to rotate, and then realizes the automatic fast locking and braking of the transmission shaft 3, and then achieves the purpose of improving the overall rotor detection rate.

[0026] Example 2

[0027] See also Figure 5As shown, the auxiliary supporting device 6 includes a rotating screw seat 61, the end of the rotating screw seat 61 is rotatably connected to the driving base 72, the internal thread of the rotating screw seat 61 is connected to the adjusting rod 62, the end of the adjusting rod 62 is fixedly connected to the support plate 63, and the end of the support plate 63 is fixedly connected to the limiting rod 64. By starting the electric push rod 71, the rotating screw seat 61 on the driving base 72 drives the support plate 63 on the adjusting rod 62 to move upward, and the support plate 63 drives the rotor to move upward so that its axis is aligned with the coupling 4. At this time, the operator can directly bolt the coupling 4 to the rotor. During installation, the operator does not need to hold the rotor by hand. The support plate 63 is used to temporarily support the rotor during installation or disassembly, so as to achieve the purpose of convenient installation and disassembly of the rotor.

[0028] Furthermore, a rotating handle is fixedly connected to the rotating screw seat 61, and the surface of the limit rod 64 is slidably connected to the driving base 72. The rotating handle is convenient for the operator to adjust the rotation of the rotating screw seat 61 to achieve the effect of height adjustment of the adjusting rod 62. The height adjustment of the adjusting rod 62 achieves the effect of adjusting the distance between the rotor on the support plate 63 and the axial center of the coupling 4, thereby meeting the purpose of moving and aligning rotors of different diameters. The applicability and practicality of the test platform 1 for dynamic balancing detection of generator rotors of different models and sizes are improved.

[0029] When the dynamic balance detection device of the generator rotor of the utility model is used, the operator installs the two ends of the generator rotor to the two corresponding couplings 4 respectively, drives the transmission shaft 3 to drive the generator rotor on the coupling 4 to rotate by starting the transmission motor 2, and uses the detection device on the other end of the coupling 4 to perform dynamic balance detection on the rotor during rotation. The rotor needs to be installed before detection. The operator places the rotor on the support plate 63, and drives the rotating screw seat 61 on the drive base 72 by starting the electric push rod 71 to drive the support plate 63 on the adjustment rod 62 to move up. The support plate 63 drives the rotor to move up so that its axis is aligned with the coupling 4. At this time, the operator can directly bolt the coupling 4 to the rotor. During installation, the operator does not need to hold the rotor by hand, and the support plate 63 is used to temporarily support the rotor during installation or disassembly, so as to achieve the purpose of convenient installation and disassembly of the rotor. At the same time, since the upward movement distance of the electric push rod 71 is limited, when installing rotors of different diameters, the operator can rotate the rotating screw seat 61, and when the rotating screw seat 61 rotates, it drives the adjusting rod 62 with internal thread connection and linear limit to adjust the height. The height adjustment of the adjusting rod 62 can achieve the effect of adjusting the distance between the rotor on the support plate 63 and the axial center of the coupling 4, thereby meeting the purpose of moving and aligning rotors of different diameters. The applicability and practicality of the test platform 1 for dynamic balancing detection of generator rotors of different models and sizes are improved.

[0030] Before the generator rotor is rotated and tested, the electric push rod 71 drives the driving base 72 to move downward and reset as a whole, and the support plate 63 loses the supporting force on the installed rotor. At this time, the effect of not contacting the rotor can facilitate the rotor to be tested without interference. After the test contact, the electric push rod 71 is started, and the output shaft of the electric push rod 71 drives the rack 73 on the driving base 72 to move upward as a whole. Before the support plate 63 moves upward and contacts the rotor surface, the upward movement of the rack 73 engages the rotation of the turntable 52. The rotation of the turntable 52 drives the extrusion block 53 to rotate and squeeze the protrusion 58. The protrusion 58 is squeezed by force and moves toward the axis of the fixed ring seat 51 During the movement of the ball 57 driven by the projection 58 through the slide column 56, the ball 57 moves toward the transmission shaft 3. After it completely contacts the transmission shaft 3, the subsequent moving force is used to squeeze the surface of the transmission shaft 3. Multiple balls 57 simultaneously lock the transmission shaft 3, and the friction force of squeezing is used to quickly brake the transmission shaft 3, thereby achieving the purpose of braking the generator rotor under inertial rotation. After the rapid locking and braking, it is convenient for the operator to quickly disassemble and replace the rotor, improve the material removal rate of the rotor after detection, and then achieve the purpose of improving the overall rotor detection rate. After the rotor stops, the support plate 63 has a short range of upward movement, and after the movement, it achieves the effect of contacting the supporting rotor again, thereby facilitating the operator to labor-savingly disassemble the rotor.

[0031] The above implementation methods are only used to illustrate the embodiments of the present utility model, and are not limitations of the embodiments of the present utility model. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the embodiments of the present utility model. Therefore, all equivalent technical solutions also belong to the scope of the embodiments of the present utility model. The patent protection scope of the embodiments of the present utility model should be limited by the claims.

Claims

1. A dynamic balance detection device for a generator rotor, comprising a test platform (1), Features: A transmission motor (2) is installed on the test platform (1); the output shaft of the transmission motor (2) is connected to a transmission shaft (3) via a pulley and a belt drive; the end of the transmission shaft (3) is fixedly connected to a coupling (4); a quick braking device (5) is provided on the test platform (1); an auxiliary supporting device (6) is provided on the quick braking device (5); the quick braking device (5) is used to automatically brake the transmission shaft (3) after detection, and at the same time drive the auxiliary supporting device (6) to adaptively support the generator rotor.

2. A generator rotor dynamic balance detection device according to claim 1, Features: The rapid locking device (5) comprises a fixed ring seat (51) and a driving device (7), one end of the fixed ring seat (51) is fixedly connected to the test platform (1), the other end of the fixed ring seat (51) is rotatably connected to a turntable (52), the inner wall of the turntable (52) is fixedly connected to an extrusion block (53), the interior of the fixed ring seat (51) is fixedly connected to a limit column (54), the end of the limit column (54) is elastically connected to a chuck (55) via a spring, the interior of the chuck (55) is fixedly connected to a sliding column (56), one end of the sliding column (56) is rotatably connected to a rolling ball (57), and the other end of the sliding column (56) is fixedly connected to a protrusion (58).

3. A generator rotor dynamic balance detection device according to claim 2, Features: The surface of the sliding column (56) is slidably connected to the inside of the limiting column (54), and the surface of the protrusion (58) is slidably connected to the inner wall of the rotating disk (52).

4. A generator rotor dynamic balance detection device according to claim 2, Features: The driving device (7) comprises an electric push rod (71), the electric push rod (71) is installed on the test platform (1), the output shaft of the electric push rod (71) is connected to a driving base (72), and a rack (73) is fixedly connected to the driving base (72).

5. A generator rotor dynamic balance detection device according to claim 4, Features: The surface of the rack (73) engages with the surface of the turntable (52), and the surface of the rack (73) is slidably connected to the test platform (1).

6. A generator rotor dynamic balance detection device according to claim 1, Features: The auxiliary support device (6) comprises a rotating screw seat (61), the end of which is rotatably connected to a driving base (72), the internal thread of the rotating screw seat (61) is connected to an adjusting rod (62), the end of which is fixedly connected to a supporting plate (63), and the end of which is fixedly connected to a limiting rod (64).

7. A generator rotor dynamic balance detection device according to claim 6, Features: A rotating handle is fixedly connected to the rotating screw seat (61), and the surface of the limiting rod (64) is slidably connected in the driving base (72).

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