Generator rotor magnetic pole simulation test device

Abstract

The invention discloses a generator rotor magnetic pole simulation test device, and belongs to the technical field of generators, the generator rotor magnetic pole simulation test device comprises a base and a plurality of support plates, the support plates are uniformly and circumferentially distributed on the side wall of the base, the support plates are used for installing a generator stator, and a fixing frame is rotatably installed on the base and used for installing a generator rotor. A driving motor with an output end fixedly connected with the rotating shaft of the mounting frame is arranged on the base, and drives the fixing frame to rotate; a stop lever and a mounting frame are vertically and fixedly mounted on the top wall of the supporting plate; according to the scheme, the stop lever and the heat conduction pipe are arranged; when the driving mechanism drives the heat conduction pipe to rotate, the high-temperature part on the heat conduction pipe can make contact with the part, away from the generator stator, of the stop lever, so that the temperature of the stop lever can be uniform, the temperature of the contact part of the stop lever and the generator stator is prevented from rising, and the hardness of the stop lever is guaranteed; deformation of the stop lever is prevented, shaking of the generator stator is prevented, and the detection precision is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of generators, and more specifically, to a simulation test device for generator rotor magnetic poles. Background Art

[0002] During the operation of a generator set, the rotation of the rotor magnetic poles causes the rotor magnetic poles to alternately sweep across the stator tooth grooves, thereby being subjected to periodic alternating suction forces from the stator tooth grooves. Since the rotor magnetic poles can be fixed to the surface of the rotor bracket through magnetic pole fixing members, the periodic alternating suction forces will form fatigue loads on the magnetic pole fixing members, easily resulting in the failure of the rotor magnetic pole fixation after long-term operation of the generator set, and further causing the phenomenon of the rotor magnetic poles jumping out.

[0003] The Chinese patent with the authorization announcement number: CN108132192B discloses a simulation test device for generator rotor magnetic poles, which can test the protection reliability of the rotor magnetic pole fixation, and can obtain the service life of the magnetic pole fixing members, and has a simple structure, a fast test speed, and a short detection period.

[0004] The above patent still has the following deficiencies:

[0005] During the test, since heat is generated when current passes through the stator windings and rotor conductors, this heat will not only cause the temperature of the stator and rotor themselves to rise, but also be transferred to the stator mounting base, thereby causing the temperature of the mounting base to rise; as the test time increases, the temperature of the mounting base continues to rise, which will cause the hardness of the mounting base to decrease, thus affecting the fixing effect on the generator stator. When the stator is intermittently subjected to an attractive force and exerts pressure on the mounting base, the mounting base will deform, and then the fixing effect of the mounting base on the generator stator will become worse, and ultimately may cause the generator stator to shake, resulting in an increase in detection error.

[0006] Therefore, a simulation test device for generator rotor magnetic poles is proposed. Summary of the Invention

[0007] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a simulation test device for generator rotor magnetic poles, which can reduce the detection error and improve the stability during the detection process.

[0008] To solve the above problems, the present invention adopts the following technical solutions.

[0009] A simulation test device for generator rotor magnetic poles includes a base and a plurality of support plates. The support plates are evenly distributed in a circumferential manner on the side wall of the base. The support plates are used for installing the generator stator. A fixing frame is rotatably installed on the base. The fixing frame is used for installing the generator rotor. A driving motor with an output end fixedly connected to the rotating shaft of the mounting frame is provided on the base, and the fixing frame is driven to rotate by the driving motor;

[0010] A stop bar and a mounting bracket are vertically and fixedly installed on the top wall of the support plate;

[0011] A hydraulic rod is horizontally and fixedly installed on the side wall of the mounting bracket, and a ejector rod is installed at the output end of the hydraulic rod; an installation groove is formed in the ejector rod, a sleeve is horizontally rotatably installed in the installation groove, an extension rod is slidably inserted into the sleeve, and an elastic member is jointly installed between the end face of the extension rod and the inner wall of the sleeve. Place the generator stator between the ejector rod and the stop bar, and then start the hydraulic rod, and the stop bar and the ejector rod can drive the sleeve and the extension rod to apply pressure to the generator stator. When the elastic member does not deform, the generator stator can be clamped and fixed. Therefore, when the elastic member deforms, the fixing effect will be improved; an activity groove is formed in the end face of the extension rod, and a ball is movably embedded in the activity groove, and the sleeve is provided with an adjustment mechanism cooperating with the extension rod; by adjusting the angle between the extension rod and the ejector rod through the adjustment mechanism, the contact position between the ball and the generator stator can be changed, and then the ball can rotate during the adjustment process to prevent the temperature of a certain part of the ball from being too high, which plays a role in ensuring the hardness of the ball, so that the generator stator can be firmly clamped, which plays a role in reducing the detection error, and during the adjustment process, the part in contact with the ball can also be exposed to the air, which plays a role in facilitating the normal heat dissipation of the generator stator;

[0012] At the same time, under the action of the adjustment mechanism, the applicable range of the device can be expanded, and generator stators of different sizes can be fixed, which plays a role in improving the applicable range of the device.

[0013] A jack is formed in the stop bar, a heat conduction pipe is rotatably inserted into the jack, and the support plate is provided with a driving mechanism for driving the heat conduction pipe to rotate;

[0014] During the working process, the generator stator contacts the stop bar. At this time, the heat generated by the generator stator is transferred to the stop bar through heat exchange. Similarly, the stop bar transfers the heat to the heat conduction pipe. Therefore, the temperature of the part of the heat conduction pipe close to the generator stator rises;

[0015] When the driving mechanism drives the heat conduction pipe to rotate, the part with a higher temperature on the heat conduction pipe can be made to contact the part of the stop bar away from the generator stator, and then the temperature of the stop bar can be made uniform, preventing the temperature of the contact part between the stop bar and the generator stator from rising, ensuring the hardness of the stop bar. Therefore, when the generator stator applies pressure to the stop bar, the stop bar can be prevented from deforming, and the generator stator can be prevented from shaking, improving the detection accuracy; air holes communicating with the jack are formed on the outer wall of the stop bar, and the air holes are uniformly distributed on the surface of the stop bar. Therefore, the contact area between the heat conduction pipe and the outside air can be increased, improving the cooling effect on the heat conduction pipe, and further improving the heat absorption effect of the heat conduction pipe on the stop bar.

[0016] Further, a cavity is formed in the base, small holes for cooperating with the fixing frame are uniformly formed in the top wall of the cavity, and an air pump with an output end communicating with the cavity is provided on the base.

[0017] The air pump supplies air to the cavity, so the gas in the cavity is discharged through the small holes. At this time, the environment where the generator housing is located during the operation of the wind turbine can be simulated, reducing the test error.

[0018] Further, the driving mechanism includes a conduit embedded in the support plate. The conduit is communicated with the heat-conducting pipe, and one end of the conduit far away from the support plate extends into the cavity; and an impeller is fixedly installed in the heat-conducting pipe.

[0019] Part of the gas in the cavity is discharged into the heat-conducting pipe through the conduit and then flows along the heat-conducting pipe. During this process, the gas flowing in the heat-conducting pipe impacts the impeller, so that the impeller can drive the heat-conducting pipe to rotate;

[0020] At the same time, the air flow flowing upward along the heat-conducting pipe can also absorb the heat of the heat-conducting pipe, so as to cool the heat-conducting pipe in time, ensuring that the heat-conducting pipe can absorb the heat of the stop lever in time.

[0021] Further, the adjusting mechanism includes a partition fixedly installed at the output end of the hydraulic rod. A bidirectional threaded rod is horizontally and rotatably inserted into the side wall of the partition, and sliders are threadedly installed on the bidirectional threaded rod;

[0022] A U-shaped clamping sleeve is slidably installed on the outer wall of the sleeve. The opening of the clamping sleeve faces downward, and a connecting rod is rotatably installed between the clamping sleeve and the slider; a stepping motor is fixedly installed on the partition, a gear is installed at the output end of the stepping motor, and a toothed ring meshing with the gear is fixedly sleeved on the bidirectional threaded rod.

[0023] By rotating the bidirectional threaded rod, the two sliders can approach or move away from each other. During the movement of the sliders, the clamping sleeve is driven to move through the connecting rod. During the process that the side wall of the clamping sleeve pushes the sleeve to move, the clamping sleeve slides along the surface of the sleeve, and under the action of the connecting rod, both the clamping sleeve and the sleeve rotate, so that the included angle between the sleeve and the top rod can be changed, that is, the included angle between the extension rod and the top rod is changed;

[0024] By using the stepping motor and the meshing toothed ring and gear to drive the bidirectional threaded rod to rotate, the stability during the rotation process can be improved, so that the ball moves uniformly on the surface of the motor stator, playing a role in preventing the motor stator from shaking. And during the movement of the slider, the elastic member is always in a compressed state, so as to ensure the fixing effect on the generator stator.

[0025] Further, an air cavity is formed in the elastic member, and an air pipe extending into the movable groove is inserted into the side wall of the air cavity.

[0026] During the reciprocating rotation of the bidirectional threaded rod driving the sleeve, the extension rod will gradually extend from the sleeve and then retract into the sleeve. Therefore, the elastic member is intermittently compressed and restored, that is, the air chamber intermittently inhales and exhales through the trachea and the movable groove;

[0027] During the process of the air chamber inhaling and exhaling, it can drive the air flow around the ball, the extension rod and the elastic member, and thus can timely dissipate heat for the ball, the extension rod and the elastic member, ensuring the hardness of the ball, the extension rod and the sleeve, preventing the generator stator from shaking, and playing a role in reducing the detection error.

[0028] Furthermore, through holes matching the air holes are uniformly formed on the surface of the heat conduction tube.

[0029] During the rotation of the heat conduction tube, when the through hole communicates with the air hole; part of the gas flowing along the heat conduction tube will pass through the through hole and the air hole and be discharged. At this time, the gas discharged from the air hole impacts the surface of the generator stator, and thus can accelerate the air flow rate on the surface of the generator stator, thereby improving the heat dissipation effect of the generator stator and reducing the heat transferred from the generator stator to the stop lever during the detection process, that is, playing a role in improving the temperature reduction effect on the stop lever

[0030] Furthermore, an elastic strip is commonly installed between the side walls of the two extension rods, and a buffer pad made of elastic material is fixedly installed on the elastic strip.

[0031] Since the generator stator is arc-shaped, when the ball at the end of the extension rod contacts the generator stator, the convex part on the arc-shaped surface of the generator stator will contact the buffer pad. As the extension rod slides on the surface of the generator stator, the buffer pad gradually receives resistance. At the same time, the buffer pad pushes the elastic strip to deform. Therefore, the elastic strip applies pressure to the generator stator through the buffer pad, thereby improving the fixing effect on the generator during the working process, reducing the probability of the generator stator shaking, and playing a role in improving the detection accuracy.

[0032] Furthermore, the buffer pad is of a hollow structure, and nitrogen gas is filled in the buffer pad.

[0033] The heat generated by the generator stator is transferred to the buffer pad and the nitrogen gas through heat exchange, so that the nitrogen gas can be heated and expanded and drive the elastic buffer pad to expand, increasing the pressure on the generator stator and further improving the fixing effect on the generator stator.

[0034] Furthermore, a gantry is installed on the support plate, and an image acquisition module, a judgment module and an alarm module are arranged on the bottom wall of the horizontal section of the gantry;

[0035] The image acquisition module sends the collected data to the judgment module;

[0036] The judgment module makes a judgment on the received data and sends the judgment result to the alarm module.

[0037] Furthermore, the image acquisition module is used to acquire the projection of the generator stator on the surface of the support plate, and send the distance value between the edge of the projection of the generator stator on the surface of the support plate and the edge of the top wall of the support plate to the judgment module;

[0038] The judgment module is used to judge the position information of the generator stator:

[0039] When D - d = 0, the alarm module does not work;

[0040] When D - d ≠ 0, the alarm module works, prompting the user that the position of the generator stator has changed and needs to be corrected in time, so as to ensure the accuracy of the detection result;

[0041] Among them,

[0042] D is the distance value, a preset value, between the edge of the projection of the generator stator on the surface of the support plate and the edge of the top wall of the support plate before the start of the test;

[0043] d is the distance value between the edge of the projection of the generator stator on the surface of the support plate and the edge of the top wall of the support plate detected in real time during the test process.

[0044] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0045] (1) In this solution, by setting the stop bar and the heat conduction tube; when the driving mechanism drives the heat conduction tube to rotate, the higher temperature part on the heat conduction tube can be in contact with the part of the stop bar far from the generator stator, so that the temperature of the stop bar can be made uniform, preventing the temperature of the contact part between the stop bar and the generator stator from rising, ensuring the hardness of the stop bar. Therefore, when the generator stator applies pressure to the stop bar, the stop bar can be prevented from deforming, and the generator stator can be prevented from shaking, improving the detection accuracy;

[0046] (2) In this solution, by setting the sleeve, the elastic member, the extension rod and the adjustment mechanism; by adjusting the angle between the extension rod and the ejector rod through the adjustment mechanism, the contact part between the ball and the generator stator is changed, and then the ball can be rotated during the adjustment process to prevent a certain part of the ball from having too high a temperature, ensuring the hardness of the ball, so that the generator stator can be firmly clamped, playing a role in reducing the detection error. And during the adjustment process, the part in contact with the ball can also be exposed to the air, facilitating the normal heat dissipation of the generator stator; at the same time, under the action of the adjustment mechanism, the applicable range of the device can be expanded, and generator stators of different sizes can be fixed, playing a role in improving the applicable range of the device. Brief Description of the Drawings

[0047] Figure 1Schematic diagram of the overall structure of the present invention;

[0048] Figure 2 Schematic diagram of the bottom view structure of the present invention;

[0049] Figure 3 For the present invention Figure 1 Enlarged schematic diagram of part A in the present invention;

[0050] Figure 4 Schematic diagram of the sectional structure of the support plate and the base of the present invention;

[0051] Figure 5 Schematic diagram of the combined sectional structure of the sleeve and the extension rod of the present invention;

[0052] Figure 6 Schematic diagram of the combined structure of the slider, the ferrule and the connecting rod of the present invention;

[0053] Figure 7 Working flow chart of the image acquisition module, the judgment module and the alarm module of the present invention.

[0054] Explanation of the reference numerals in the figure:

[0055] 1. Base; 2. Support plate; 3. Fixed frame; 4. Driving motor; 5. Stop bar; 6. Mounting frame; 7. Hydraulic rod; 8. Thrust rod; 9. Sleeve; 10. Extension rod; 11. Elastic member; 12. Ball; 13. Heat conduction tube; 14. Air hole; 15. Air pump; 16. Duct; 17. Impeller; 18. Partition plate; 19. Bi-directional threaded rod; 20. Slider; 21. Ferrule; 22. Connecting rod; 23. Stepper motor; 24. Gear; 25. Gear ring; 26. Air cavity; 27. Air pipe; 28. Through hole; 29. Elastic strip; 30. Buffer pad; 31. Gantry; 32. Image acquisition module; 33. Judgment module; 34. Alarm module. Detailed implementation manners

[0056] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0057] Embodiment 1:

[0058] Please refer to Figures 1 to 7, A generator rotor pole simulation test device, comprising a base 1 and a plurality of support plates 2. The support plates 2 are evenly distributed in a circumferential manner on the side wall of the base 1. The support plates 2 are used for installing the generator stator. A fixing frame 3 is rotatably installed on the base 1. The fixing frame 3 is used for installing the generator rotor. A driving motor 4 with an output end fixedly connected to the rotating shaft of the mounting frame 6 is provided on the base 1. The fixing frame 3 is driven to rotate by the driving motor 4;

[0059] On the top wall of the support plate 2, a stop rod 5 and a mounting frame 6 are vertically and fixedly installed;

[0060] On the side wall of the mounting frame 6, a hydraulic rod 7 is horizontally and fixedly installed. On the output end of the hydraulic rod 7, a top rod 8 is installed; an installation groove is formed on the top rod 8. A sleeve 9 is horizontally rotatably installed in the installation groove. An extension rod 10 is slidably inserted into the sleeve 9. An elastic member 11 is jointly installed between the end face of the extension rod 10 and the inner wall of the sleeve 9. Place the generator stator between the top rod 8 and the stop rod 5, and then start the hydraulic rod 7. The sleeve 9 and the extension rod 10 can be driven by the stop rod 5 and the top rod 8 to apply pressure to the generator stator. When the elastic member 11 does not deform, the generator stator can be clamped and fixed. Therefore, when the elastic member 11 deforms, the fixing effect will be improved; an activity groove is formed on the end face of the extension rod 10. A ball 12 is movably embedded in the activity groove. And an adjustment mechanism cooperating with the extension rod 10 is provided on the sleeve 9; the included angle between the extension rod 10 and the top rod 8 is adjusted through the adjustment mechanism, so that the contact position between the ball 12 and the generator stator can be changed. Furthermore, the ball 12 can rotate during the adjustment process, preventing the temperature of a certain part of the ball 12 from being too high, playing a role in ensuring the hardness of the ball 12, so that the generator stator can be firmly clamped, playing a role in reducing the detection error. And during the adjustment process, the part in contact with the ball 12 can also be exposed to the air, playing a role in facilitating the normal heat dissipation of the generator stator;

[0061] At the same time, under the action of the adjustment mechanism, the applicable range of the device can be expanded, and generator stators of different sizes can be fixed, playing a role in improving the applicable range of the device.

[0062] A heat conduction tube 13 is rotatably inserted into a jack formed on the stop rod 5. And a driving mechanism for driving the heat conduction tube 13 to rotate is provided on the support plate 2;

[0063] During the working process, the generator stator contacts the stop rod 5. At this time, the heat generated by the generator stator is transferred to the stop rod 5 through heat exchange. Similarly, the stop rod 5 transfers the heat to the heat conduction tube 13. Therefore, the temperature of the part of the heat conduction tube 13 close to the generator stator rises;

[0064] When the driving mechanism drives the heat conduction tube 13 to rotate, the part with a higher temperature on the heat conduction tube 13 can be brought into contact with the part of the stop lever 5 far from the generator stator. As a result, the temperature of the stop lever 5 can be made uniform, preventing the temperature of the contact part between the stop lever 5 and the generator stator from rising, ensuring the hardness of the stop lever 5. Therefore, when the generator stator applies pressure to the stop lever 5, the stop lever 5 can be prevented from deforming, the generator stator from shaking, and the detection accuracy can be improved. Air holes 14 communicating with the jacks are formed in the outer wall of the stop lever 5, and the air holes 14 are evenly distributed on the surface of the stop lever 5. Therefore, the contact area between the heat conduction tube 13 and the outside air can be increased, the cooling effect on the heat conduction tube 13 can be improved, and further the heat absorption effect of the heat conduction tube 13 on the stop lever 5 and the active heat dissipation effect of the stop lever 5 can be improved.

[0065] As Figure 4 shown, a cavity is formed in the base 1, small holes matching with the fixing frame 3 are evenly formed in the top wall of the cavity, and an air pump 15 with an output end communicating with the cavity is arranged on the base 1.

[0066] The cavity is supplied with gas by the air pump 15, so the gas in the cavity is discharged through the small holes. At this time, the environment where the generator housing is located during the operation of the wind turbine can be simulated, reducing the test error.

[0067] As Figure 4 shown, the driving mechanism includes a conduit 16 embedded in the support plate 2. The conduit 16 is communicated with the heat conduction tube 13, and one end of the conduit 16 far from the support plate 2 extends into the cavity. An impeller 17 is fixedly installed in the heat conduction tube 13.

[0068] Part of the gas in the cavity is discharged into the heat conduction tube 13 through the conduit 16 and then flows along the heat conduction tube 13. During this process, the gas flowing in the heat conduction tube 13 impacts the impeller 17, so that the heat conduction tube 13 can be driven to rotate by the impeller 17;

[0069] At the same time, the air flow flowing upward along the heat conduction tube 13 can also absorb the heat of the heat conduction tube 13, so as to cool the heat conduction tube 13 in time, ensuring that the heat conduction tube 13 can absorb the heat of the stop lever 5 in time.

[0070] As Figure 3 、 Figure 6 shown, the adjusting mechanism includes a partition plate 18 fixedly installed at the output end of the hydraulic rod 7. A bidirectional threaded rod 19 is horizontally and rotatably inserted into the side wall of the partition plate 18, and a slider 20 is threadedly installed on the bidirectional threaded rod 19;

[0071] A U-shaped clamping sleeve 21 is slidably mounted on the outer wall of the sleeve 9. The opening of the clamping sleeve 21 faces downward, and a connecting rod 22 is rotatably mounted between the clamping sleeve 21 and the slider 20; a stepper motor 23 is fixedly mounted on the partition plate 18, a gear 24 is mounted on the output end of the stepper motor 23, and a gear ring 25 meshing with the gear 24 is fixedly sleeved on the bidirectional threaded rod 19.

[0072] By rotating the bidirectional threaded rod 19, the two sliders 20 can move closer to or away from each other. During the movement of the slider 20, the clamping sleeve 21 is driven to move through the connecting rod 22. During the process that the side wall of the clamping sleeve 21 pushes the sleeve 9 to move, the clamping sleeve 21 slides along the surface of the sleeve 9, and under the action of the connecting rod 22, both the clamping sleeve 21 and the sleeve 9 rotate, so as to change the included angle between the sleeve 9 and the ejector rod 8, that is, change the included angle between the extension rod 10 and the ejector rod 8, and adjust the contact part between the ball 12 and the generator stator;

[0073] By using the stepper motor 23 and the meshing gear ring 25 and gear 24 to drive the bidirectional threaded rod 19 to rotate, the stability during the rotation process can be improved, so that the ball 12 moves uniformly on the surface of the generator stator, playing a role in preventing the generator stator from shaking. And during the movement of the slider 20, the elastic member 11 is always in a compressed state, so as to ensure the fixing effect on the generator stator.

[0074] As Figure 5 shown, an air cavity 26 is formed in the elastic member 11, and an air pipe 27 extending into the movable groove is inserted on the side wall of the air cavity 26.

[0075] During the process that the bidirectional threaded rod 19 drives the sleeve 9 to rotate reciprocally, the extension rod 10 will gradually extend from the sleeve 9 and then retract into the sleeve 9. Therefore, the elastic member 11 is intermittently compressed and restored, that is, the air cavity 26 intermittently inhales and exhales air with the movable groove through the air pipe 27;

[0076] During the process of the air cavity 26 inhaling and exhaling air, it can drive the air flow around the ball 12, the extension rod 10 and the elastic member 11, and then can timely dissipate heat for the ball 12, the extension rod 10 and the elastic member 11, ensuring the hardness of the ball 12, the extension rod 10 and the sleeve 9, preventing the generator stator from shaking, and playing a role in reducing the detection error.

[0077] As Figure 5 shown, through holes 28 matching with the air holes 14 are uniformly formed on the surface of the heat conduction pipe 13.

[0078] During the rotation of the heat conduction tube 13, when the through hole 28 communicates with the air hole 14; part of the gas flowing along the heat conduction tube 13 will pass through the through hole 28 and the air hole 14 and be discharged. At this time, the gas discharged from the air hole 14 impacts the surface of the generator stator, which can accelerate the air flow rate on the surface of the generator stator, thereby improving the heat dissipation effect of the generator stator and reducing the heat transferred from the generator stator to the blocking rod 5 during the detection process, that is, it plays a role in improving the temperature reduction effect on the blocking rod 5.

[0079] As Figure 3 , Figure 5 shown, an elastic strip 29 is commonly installed between the side walls of the two extension rods 10. A buffer pad 30 made of an elastic material is fixedly installed on the elastic strip 29. The extended surface of the side wall of the buffer pad 30 away from the sleeve 9 is tangent to the end of the ball 12 away from the extension rod 10.

[0080] Since the generator stator is arc-shaped, when the ball 12 at the end of the extension rod 10 contacts the generator stator, the protruding part on the arc-shaped surface of the generator stator will contact the buffer pad 30. As the extension rod 10 slides on the surface of the generator stator, the buffer pad 30 gradually receives resistance. At the same time, the buffer pad 30 pushes the elastic strip 29 to deform. Therefore, the elastic strip 29 applies pressure to the generator stator through the buffer pad 30, thereby improving the fixing effect on the generator stator during operation, reducing the probability of the generator stator shaking, and playing a role in improving the detection accuracy.

[0081] As Figure 5 shown, the buffer pad 30 is of a hollow structure, and nitrogen gas is filled in the buffer pad 30.

[0082] The heat generated by the generator stator is transferred to the buffer pad 30 and nitrogen gas through heat exchange, so that the nitrogen gas expands due to heat and drives the elastic buffer pad 30 to expand, increasing the pressure on the generator stator and further improving the fixing effect on the generator stator.

[0083] As Figure 2 , Figure 7 shown, a gantry 31 is installed on the support plate 2. An image acquisition module 32, a judgment module 33 and an alarm module 34 are provided on the bottom wall of the horizontal section of the gantry 31;

[0084] The image acquisition module 32 sends the collected data to the judgment module 33;

[0085] The judgment module 33 judges the received data and sends the judgment result to the alarm module 34.

[0086] As Figure 1As shown in the figure, the image acquisition module 32 is used to collect the projection of the generator stator on the surface of the support plate 2, and send the distance value between the edge of the projection of the generator stator on the surface of the support plate 2 and the edge of the top wall of the support plate 2 to the judgment module 33;

[0087] The judgment module 33 is used to judge the position information of the generator stator:

[0088] When D - d = 0, the alarm module 34 does not work;

[0089] When D - d ≠ 0, the alarm module 34 works, prompting the user that the position of the generator stator has changed and needs to be corrected in time to ensure the accuracy of the detection result;

[0090] Wherein,

[0091] D is the distance value, a preset value, between the edge of the projection of the generator stator on the surface of the support plate 2 and the edge of the top wall of the support plate 2 before the start of the test;

[0092] d is the distance value between the edge of the projection of the generator stator on the surface of the support plate 2 and the edge of the top wall of the support plate 2 detected in real time during the test.

[0093] The above is only the preferred specific implementation manner of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent replacements or changes, and should be covered by the protection scope of the present invention.

Claims

1. A generator rotor pole simulation test device, comprising a base (1) and a support plate (2), wherein a fixing frame (3) is rotatably mounted on the base (1); It is characterized in that: A stop rod (5) and a mounting frame (6) are vertically and fixedly mounted on the top wall of the support plate (2); A hydraulic rod (7) is horizontally and fixedly mounted on the side wall of the mounting frame (6), and a top rod (8) is mounted on the output end of the hydraulic rod (7); an installation groove is formed in the top rod (8), a sleeve (9) is horizontally rotatably mounted in the installation groove, an extension rod (10) is slidably inserted into the sleeve (9), an elastic member (11) is jointly mounted between the end face of the extension rod (10) and the inner wall of the sleeve (9), a movable groove is formed in the end face of the extension rod (10), a ball (12) is movably embedded in the movable groove, and an adjustment mechanism cooperating with the extension rod (10) is arranged on the sleeve (9); A jack is formed in the stop rod (5), a heat-conducting tube (13) is rotatably inserted into the jack, and a driving mechanism for driving the heat-conducting tube (13) to rotate is arranged on the support plate (2); Air holes (14) communicating with the jack are formed in the outer wall of the stop rod (5), and the air holes (14) are uniformly distributed on the surface of the stop rod (5).

2. The generator rotor pole simulation test device according to claim 1, characterized in that: A cavity is formed in the base (1), small holes cooperating with the fixing frame (3) are uniformly formed in the top wall of the cavity, and an air pump (15) with an output end communicating with the cavity is arranged on the base (1).

3. The generator rotor pole simulation test device according to claim 2, characterized in that: The driving mechanism comprises a conduit (16) embedded in the support plate (2), the conduit (16) communicates with the heat-conducting tube (13), and the end of the conduit (16) away from the support plate (2) extends into the cavity; and an impeller (17) is fixedly mounted in the heat-conducting tube (13).

4. A generator rotor pole simulation test device according to claim 3, characterized in that: The adjustment mechanism comprises a partition plate (18) fixedly mounted on the output end of the hydraulic rod (7), a bidirectional threaded rod (19) is horizontally rotatably inserted into the side wall of the partition plate (18), and a slider (20) is threadedly mounted on the bidirectional threaded rod (19); A U-shaped clamping sleeve (21) is slidably mounted on the outer wall of the sleeve (9), the opening of the clamping sleeve (21) faces downward, and a connecting rod (22) is jointly rotatably mounted between the clamping sleeve (21) and the slider (20).

5. The generator rotor pole simulation test device according to claim 4, wherein: An air cavity (26) is formed in the elastic member (11), and an air tube (27) extending into the movable groove is inserted into the side wall of the air cavity (26).

6. The generator rotor pole simulation test device according to claim 5, characterized in that: Penetrating holes (28) cooperating with the air holes (14) are uniformly formed in the surface of the heat-conducting tube (13).

7. A generator rotor pole simulation test device according to claim 6, characterized in that: An elastic strip (29) is jointly mounted between the side walls of the two extension rods (10), and a buffer pad (30) made of an elastic material is fixedly mounted on the elastic strip (29).

8. A generator rotor pole simulation test device according to claim 7, characterized in that: The buffer pad (30) is of a hollow structure, and nitrogen gas is filled in the buffer pad (30).

9. The generator rotor pole simulation test device according to claim 8, wherein: A gantry (31) is mounted on the support plate (2), and an image acquisition module (32), a judgment module (33) and an alarm module (34) are arranged on the bottom wall of the horizontal section of the gantry (31); The image acquisition module (32) sends the acquired data to the judgment module (33); The judgment module (33) makes a judgment on the received data and sends the judgment result to the alarm module (34).

10. A generator rotor pole simulation test device according to claim 9, characterized in that: The image acquisition module (32) is used to acquire the projection of the generator stator on the surface of the support plate (2), and send the distance value between the edge of the projection of the generator stator on the surface of the support plate (2) and the edge of the top wall of the support plate (2) to the judgment module (33); The judgment module (33) is used to judge the position information of the generator stator.

Images