CN114323517A - Generator environment test system dragged by rigid shaft - Google Patents
Generator environment test system dragged by rigid shaft Download PDFInfo
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- CN114323517A CN114323517A CN202111522822.2A CN202111522822A CN114323517A CN 114323517 A CN114323517 A CN 114323517A CN 202111522822 A CN202111522822 A CN 202111522822A CN 114323517 A CN114323517 A CN 114323517A
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- 238000012360 testing method Methods 0.000 title claims abstract description 41
- 210000001503 joint Anatomy 0.000 claims abstract description 4
- 230000007613 environmental effect Effects 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 10
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 239000012774 insulation material Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 18
- 239000011810 insulating material Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The application belongs to the field of generator environment tests, and particularly relates to a generator environment test system dragged by a rigid shaft. The system comprises a generator (1), a motor (5), a rigid shaft sleeve (6) and a fan cover (8), wherein the generator (1) is in butt joint with the motor (5) through flange plates, an output shaft of the motor (5) and a driving shaft of the generator (1) respectively extend into shaft holes in two end faces of the rigid shaft sleeve (6), the fan cover (8) is provided with a closed space, one end of the closed space is open, and the fan cover (8) is fixed on the flange plate at the end part of the motor (5) through the open end, so that the motor (5) is accommodated in the closed space of the fan cover (8). This application design is simple and convenient, and the cost is lower, and it is convenient to dismantle, can test in the place of difference, utilizes the thermal-insulated effect of fan housing, can accomplish high rotational speed generator's high low temperature work vibration test smoothly.
Description
Technical Field
The application belongs to the field of generator environment tests, and particularly relates to a generator environment test system dragged by a rigid shaft.
Background
The generator needs to complete the related vibration test in the running state before leaving factory, in the prior art, the Chinese utility model with the publication number of CN211452775U provides a motor dragging system for the generator vibration test, which comprises a driving motor, a transmission shaft, a belt wheel shaft and a transmission belt wheel, the pulley shaft is connected with the driving motor through the transmission shaft in a transmission way, the transmission pulley is connected with the pulley shaft, the transmission belt wheel can be connected with a generator to be tested, a first flexible coupling is arranged between the transmission shaft and the driving motor, a second flexible coupling is arranged between the transmission shaft and the pulley shaft, the transmission shaft is of a hollow structure, the belt wheel shaft is connected with a bearing seat, the driving motor, the bearing seat and the generator to be tested are arranged on the same test table, and the generator is subjected to vibration test under the action of the driving shaft motor by the method.
The method that the multistage flexible coupling and the transmission belt wheel are arranged between the generator and the driving shaft motor is adopted, the structure is complex, the transmission belt wheel is connected with the generator through the transmission belt, the generator shaft is dragged to rotate through the friction force of the transmission belt and limited by the friction force of the transmission belt, the problem that deformation is inconsistent under different rotating speeds exists in the technology, and the damage of resonance is easily caused when the technology spans a first-order critical rotating speed.
Disclosure of Invention
In order to solve the technical problem, the application provides a generator environmental test system that rigid axle drags mainly includes generator, motor, rigid axle sleeve and fan housing, and the generator passes through the ring flange butt joint with the motor, and the output shaft of motor and the drive shaft of generator stretch into respectively in the shaft hole of two terminal surfaces of rigid axle sleeve, the fan housing has an enclosure space, enclosure space one end opening, the fan housing is fixed on the ring flange of motor tip through this open end to make the motor hold in the enclosure space of fan housing, the same temperature incasement is arranged in to the fan housing that contains the motor and generator, and the fan housing passes through the air-supply line and links to each other with the outer fan of temperature case, and the fan housing exhausts outside the temperature case through going out the tuber pipe, and the motor passes through the air-supply line or goes out the outer variable frequency power supply of tuber pipe connection temperature case.
Preferably, the end part of the generator is provided with a generator end flange, the end part of the motor is provided with a motor end flange, and the generator end flange and the motor end flange are fixed through a support.
Preferably, the surfaces of the generator end flange plate opposite to the motor end flange plate are provided with spigots, and when two ends of the support are in butt joint with the two spigots, the concentricity precision of the two flange plates is not more than 0.02.
Preferably, the rigid shaft sleeve is made of aluminum alloy, and a groove is formed in the outer side of the rigid shaft sleeve.
Preferably, the fan cover is connected with the flange plate at the motor end through a mounting screw at the motor end, and vacuum sealing mud covers the joint of the mounting screw at the motor end.
Preferably, a heat insulating material is disposed outside the wind shield.
Preferably, the fan cover is connected with the air inlet pipe through an air inlet hoop, and the outside of the air inlet hoop is covered with vacuum sealing mud.
Preferably, the fan housing is connected with the air outlet pipe through an air outlet hoop, and the outside of the air outlet hoop is covered with vacuum sealing mud.
The motor of this application passes through motor end flange dish and links to each other with the vibration support, and the motor shaft passes through rigid shaft sleeve and links to each other with the generator shaft, finally realizes the transmission of the generator end motion and power of waiting to try on from the motor end, and the fan housing passes through the generator end flange dish and links to each other with the support, finally realizes the isolation of motor end temperature and ambient temperature, makes the generator can accomplish environmental test under the operating condition smoothly.
Drawings
FIG. 1 is a schematic diagram of a generator and motor connection of a rigid shaft generator environment testing system according to the present application.
FIG. 2 is a schematic illustration of the experimental environment of the embodiment of FIG. 1 of the present application.
Fig. 3 is a schematic view of the rigid bushing structure of the embodiment of fig. 1 of the present application.
The wind power generation device comprises a generator 1, a generator 2, a generator end flange plate 3, a support 4, a motor end flange plate 5, a motor 6, a rigid shaft sleeve 7, a motor shaft 8, a wind cover 8, vacuum mud sealing 9, a heat insulating material 10, an air inlet clamp 11, a variable frequency power supply 12, a fan 13, a temperature box 14, an air outlet clamp 15, an air inlet pipe 16, an air outlet pipe 17, a motor end mounting screw 18 and a generator end mounting screw 19.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the accompanying drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all embodiments of the present application. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application, and should not be construed as limiting the present application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application. Embodiments of the present application will be described in detail below with reference to the drawings.
The application provides a generator environmental test system that rigid shaft drags, is the environmental test system who carries out high low temperature test under generator rigid shaft drags, adopts and carries out rigid connection with the axle sleeve between generator and the motor, guarantees the transmission efficiency between motor and the generator, makes it more simple and convenient in the design. The generator and the motor are arranged in the same test box, the motor environment is isolated from the test environment by adopting a ventilation isolation method, the motor environment test device is suitable for various rotating speeds, various temperature and humidity environment conditions, the test is more flexible, and the cost is lower. The test requirements of the generator to be tested are as follows:
the scheme of this application provides a generator environmental test system that rigid shaft drags to solve the environmental test problem in the upper table, make it can satisfy generator operating condition environmental test's under the demand.
In order to achieve the above purpose, the generator environment testing system dragged by the rigid shaft of the present application, as shown in fig. 1-3, includes a generator 1, a motor 5, a rigid shaft sleeve 6 and a wind shield 8, the generator 1 and the motor 5 are butted by a flange, an output shaft of the motor 5 and a driving shaft of the generator 1 respectively extend into shaft holes at two end surfaces of the rigid shaft sleeve 6, the wind shield 8 has a closed space, one end of the closed space is opened, the fan cover 8 is fixed on a flange plate at the end part of the motor 5 through the opened end, therefore, the motor 5 is accommodated in the closed space of the fan housing 8, the fan housing 8 containing the motor 5 and the generator 1 are arranged in the same temperature box 14, the fan housing 8 is connected with a fan 13 outside the temperature box 14 through an air inlet pipe 16, the fan housing 8 exhausts air to the outside of the temperature box 14 through an air outlet pipe 17, and the motor 5 is connected with a variable frequency power supply 12 outside the temperature box 14 through the air inlet pipe or the air outlet pipe.
In this embodiment, the motor 5 can be in transmission connection with the rigid shaft sleeve 6 through the motor shaft 7, and the rigid shaft sleeve 6 is connected with the generator 1 to be tested, so that the transmission of motion and force from the end of the motor 5 to the end of the generator 1 to be tested is finally realized, and the generator can smoothly complete the environmental test in a working state.
In this embodiment, the generator 1 and the motor 5 are respectively connected with the rigid shaft sleeve 6, and are connected and fastened, so that the disassembly is convenient.
In some optional embodiments, the end of the generator 1 is provided with a generator end flange 2, the end of the motor 5 is provided with a motor end flange 4, and the generator end flange 2 and the motor end flange 4 are fixed by a bracket 3.
In some optional embodiments, the faces of the generator-end flange 2 opposite to the motor-end flange 4 are provided with the spigots, and when the two ends of the bracket 3 are butted on the two spigots, the concentricity precision of the two flanges is not more than 0.02, so that the possibility of eccentricity is reduced.
In some optional embodiments, as shown in fig. 3, the rigid shaft sleeve 6 is made of aluminum alloy, so that the weight is reduced, the groove is formed in the outer side, the dynamic balance characteristic of the structure is ensured, especially under the condition of high rotating speed, the shearing force and the bending moment are reduced, the safety and the reliability of the whole test system are improved, and the smooth performance of the generator environment test is guaranteed.
In some alternative embodiments, the fan cover 8 and the motor end flange 4 are connected by the motor end mounting screws 18, and the joint of the motor end mounting screws 18 is covered with the vacuum sealing mud 9.
In some alternative embodiments, the hood 8 is externally provided with an insulating material 10. In this embodiment, the heat insulating material 10 covers the surfaces of the fan housing 8 and the vacuum mud 9, and keeps the temperature inside the fan housing 8 isolated from the outside temperature.
In some alternative embodiments, the hood 8 is connected to the air inlet pipe 16 through an air inlet clamp 11, and the air inlet clamp 11 is covered with vacuum sealing mud. Similarly, the fan housing 8 is connected with the air outlet pipe 17 through the air outlet hoop 15, and the outside of the air outlet hoop 15 is covered with vacuum sealing mud. This embodiment can ensure that the fan temperature does not leak out in the temperature box.
The test bench has the advantages of simple design, low cost and convenient disassembly, and can be used for testing in different places. The heat insulation effect of the fan cover is utilized, and high-low temperature working tests of the high-speed generator under the condition of 14390rpm/min at the high temperature of 150 ℃ and the low temperature of-55 ℃ are smoothly completed.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (8)
1. A generator environment test system dragged by a rigid shaft is characterized by comprising a generator (1), a motor (5), a rigid shaft sleeve (6) and a fan cover (8), wherein the generator (1) is in butt joint with the motor (5) through a flange, an output shaft of the motor (5) and a driving shaft of the generator (1) respectively extend into shaft holes on two end faces of the rigid shaft sleeve (6), the fan cover (8) is provided with a closed space, one end of the closed space is opened, the fan cover (8) is fixed on the flange on the end part of the motor (5) through the opened end, so that the motor (5) is accommodated in the closed space of the fan cover (8), the fan cover (8) containing the motor (5) and the generator (1) are arranged in a same temperature box (14), and the fan cover (8) is connected with a fan (13) outside the temperature box (14) through an air inlet pipe (16), the fan housing (8) exhausts air to the outside of the temperature box (14) through the air outlet pipe (17), and the motor (5) is connected with the variable frequency power supply (12) outside the temperature box (14) through the air inlet pipe (16) or the air outlet pipe (17).
2. The environmental test system for the generator dragged by the rigid shaft according to claim 1 is characterized in that a generator end flange (2) is arranged at the end part of the generator (1), a motor end flange (4) is arranged at the end part of the motor (5), and the generator end flange (2) and the motor end flange (4) are fixed through a support (3).
3. The environmental test system for the generator dragged by the rigid shaft according to claim 2, wherein the faces of the generator end flange (2) opposite to the motor end flange (4) are provided with spigots, and when the two ends of the bracket (3) are butted on the two spigots, the concentricity precision of the two flanges is not more than 0.02.
4. The rigid shaft generator environment test system as recited in claim 1, characterized in that said rigid shaft sleeve (6) is made of aluminum alloy and has a groove on its outer side.
5. The environmental test system for the generator dragged by the rigid shaft as recited in claim 2, wherein the fan cover (8) is connected with the flange plate (4) at the end of the motor through the mounting screws (18) at the end of the motor, and the joint of the mounting screws (18) at the end of the motor is covered with vacuum sealing mud (9).
6. Rigid shaft generator environmental test system according to claim 1, characterized in that the wind shield (8) is externally provided with a thermal insulation material (10).
7. The environmental test system for rigid shaft generator as defined in claim 1, wherein the air hood (8) is connected to the air inlet pipe (16) by an air inlet clamp (11), and the air inlet clamp (11) is covered with vacuum sealing mud (9).
8. The rigid shaft driven generator environment test system as recited in claim 1, characterized in that the wind shield (8) is connected with the wind outlet pipe (17) through a wind outlet clamp (15), and the outside of the wind outlet clamp (15) is covered with vacuum sealing mud (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111522822.2A CN114323517A (en) | 2021-12-13 | 2021-12-13 | Generator environment test system dragged by rigid shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111522822.2A CN114323517A (en) | 2021-12-13 | 2021-12-13 | Generator environment test system dragged by rigid shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114323517A true CN114323517A (en) | 2022-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111522822.2A Pending CN114323517A (en) | 2021-12-13 | 2021-12-13 | Generator environment test system dragged by rigid shaft |
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| CN (1) | CN114323517A (en) |
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| CN201527331U (en) * | 2009-11-17 | 2010-07-14 | 沈阳华人风电科技有限公司 | Vibration experiment bench for doubly fed wind turbine generator |
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