CN115773275A - Fan for synchronous motor test - Google Patents
Fan for synchronous motor test Download PDFInfo
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- CN115773275A CN115773275A CN202211660195.3A CN202211660195A CN115773275A CN 115773275 A CN115773275 A CN 115773275A CN 202211660195 A CN202211660195 A CN 202211660195A CN 115773275 A CN115773275 A CN 115773275A
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- fan
- synchronous motor
- connecting block
- blade
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The invention provides a fan for a synchronous motor test, and belongs to the field of motor fans. The fan for the test of the synchronous motor comprises a synchronous motor rotor support, wherein threaded holes are uniformly formed in the synchronous motor rotor support, a fan base is installed on the synchronous motor rotor support through bolts, upper and lower threaded holes in the side surface of the fan base are in clearance connection with fan adjusting blades through connecting bolts, a mounting seat is fixed on the synchronous motor rotor support on the right side of the fan base through bolts, connecting blocks are arranged on the bottom of each fan adjusting blade and the mounting seat, and the connecting blocks at the bottom of the fan adjusting blades are connected with the connecting blocks on the mounting seat through connecting rods. The invention can realize that the fan is not disassembled and assembled so as to adjust the angle of the fan blade; the same fan can adopt different fan blade angles; the angle of the fan blade can be automatically adjusted, and the operation is quick; the angle can be directly changed without waiting for manufacturing of a fan with a new angle, so that the test period is shortened; and a fan with a new angle does not need to be manufactured again, so that the cost is saved.
Description
Technical Field
The invention relates to a fan for a synchronous motor test, and belongs to the field of motor fans.
Background
In a synchronous motor test, shaft movement, unsatisfactory cooling effect, poor wind path effect and other adverse conditions often occur, the performance is often improved by changing the inclination angle of fan blades, the changes of wind pressure, wind path and the like are controlled by controlling the blade angle, but the blades are necessarily frequently disassembled and assembled in the changing process, and under the condition of using a normal fan, if the blades with different angles need to be replaced, a drawing needs to be taken out again, the production needs to be organized again, the production needs to be carried out, the 8230, and the production needs to wait for a long time in the production process. And the problem does not necessarily reach the expected effect after the replacement, and the angle is likely to need to be replaced again, so that the operation is repeated, a large amount of time is wasted, the construction period is seriously influenced, and the produced redundant fans are wasted.
The fan for the test capable of adjusting the angle is invented aiming at the phenomena, the fan is not required to be frequently disassembled and assembled, the working efficiency is improved, waste is avoided, and the cost is greatly saved.
Disclosure of Invention
The invention aims to solve the problems in the prior art and further provides a fan for testing a synchronous motor.
The purpose of the invention is realized by the following technical scheme:
the utility model provides a fan for synchronous machine is experimental, including fan adjustment flabellum, the fan base, the connecting rod, the mount pad, connecting bolt and connecting bolt, evenly be provided with the screw hole on the synchronous machine rotor support, through bolt installation fan base on synchronous machine rotor support, through connecting bolt and fan adjustment flabellum clearance connection in the upper and lower threaded hole of fan base side, through bolt fixed mounting seat on the synchronous machine rotor support on fan base's the right side, the bottom of fan adjustment flabellum is provided with connecting block one, be provided with connecting block two on the mount pad, be connected through the connecting rod between the connecting block one of fan adjustment flabellum bottom and the connecting block two on the mount pad.
The invention relates to a fan for testing a synchronous motor, wherein a notch is arranged in the middle of the side surface of a fan base, threaded holes are formed in the upper part and the lower part of the notch, a protrusion matched with the notch of the fan base is arranged on a fan adjusting blade, through holes are formed in the upper part and the lower part of the protrusion, the through hole in the protrusion of the fan adjusting blade is aligned with the threaded hole in the notch of the fan base, a connecting bolt is inserted into the through hole in the protrusion of the fan adjusting blade and the threaded hole in the notch of the fan base, the connecting bolt penetrates through the fan adjusting blade and the fan base, the fan adjusting blade is hinged with the fan base by screwing the connecting bolt, the connecting bolt is in clearance connection with the fan adjusting blade, and the fan adjusting blade rotates freely.
The fan for the synchronous motor test is characterized in that a gap is formed in the middle position of the first connecting block and the second connecting block, threaded holes are formed in the first connecting block and the second connecting block from top to bottom, the connecting rod is inserted into the gap, the through hole in one end of the connecting rod is aligned with the threaded hole in the second connecting block and then fixed through the connecting bolt, and the connecting rod is in clearance fit with the connecting bolt.
The invention relates to a fan for testing a synchronous motor.
The invention relates to a fan for testing a synchronous motor, wherein the position of a threaded hole of a mounting seat fixed on a rotor bracket of the synchronous motor is as follows: one end of the connecting rod is fixed in a threaded hole of a first connecting block on the fan adjusting fan blade, and the other end of the connecting rod is fixed in a middle threaded hole of a second connecting block on the mounting seat.
When the threaded hole of the first connecting block at the bottom of the fan adjusting blade is connected with the threaded hole in the middle of the mounting seat through the connecting rod, the fan adjusting blade is adjusted to be at an initial angle, namely an included angle between the fan adjusting blade and a synchronous motor rotor support is 45 degrees.
The invention relates to a fan for testing a synchronous motor, wherein n fan adjusting fan blades are arranged on one side of a rotor support of the synchronous motor, and 2n fan adjusting fan blades are symmetrically arranged on two sides of the rotor support.
The fan for the synchronous motor test can realize the adjustment of the fan blade angle without dismounting the fan; the same fan can adopt different fan blade angles; the angle of the fan blade can be automatically adjusted, and the operation is quick; the angle can be directly changed without waiting for manufacturing of a fan with a new angle, so that the test period is shortened; and a fan with a new angle does not need to be manufactured again, so that the cost is saved.
Drawings
Fig. 1 is a schematic structural view of a fan for testing a synchronous motor according to the present invention.
Fig. 2 is an overall schematic view of the fan for testing the synchronous motor according to the present invention.
FIG. 3 is a schematic view of fan blades of the fan for testing the synchronous motor according to the present invention.
FIG. 4 is a schematic view of a fan base of the fan for testing the synchronous motor according to the present invention.
FIG. 5 is a schematic view of a connecting rod of the fan for testing the synchronous motor according to the present invention.
FIG. 6 is a schematic view of a connection block of the fan for testing the synchronous motor according to the present invention.
In the figures, the reference numbers are:
1 is fan adjusting fan blade;
2 is a fan base;
3 is a connecting rod;
4 is a mounting seat;
5 is a connecting bolt;
and 6 is a connecting bolt.
Detailed Description
The invention will be described in further detail below with reference to the accompanying drawings: the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed embodiment is given, but the scope of the present invention is not limited to the following embodiments.
The first embodiment is as follows: as shown in fig. 1-6, the fan for the synchronous motor test related in this embodiment includes fan adjusting blades, a fan base, a connecting rod, a mounting seat, a connecting bolt and a connecting bolt, wherein screw holes are uniformly formed in a synchronous motor rotor support, the fan base is installed on the synchronous motor rotor support through the bolt, upper and lower screw holes in the side surface of the fan base are in clearance connection with the fan adjusting blades through the connecting bolt, the mounting seat is fixed through the bolt on the synchronous motor rotor support on the right side of the fan base, a first connecting block is arranged at the bottom of the fan adjusting blades, a second connecting block is arranged on the mounting seat, and the first connecting block at the bottom of the fan adjusting blades is connected with the second connecting block on the mounting seat through the connecting rod.
The invention relates to a fan for testing a synchronous motor, wherein a notch is arranged in the middle of the side surface of a fan base, threaded holes are formed in the upper part and the lower part of the notch, a protrusion matched with the notch of the fan base is arranged on a fan adjusting blade, through holes are formed in the upper part and the lower part of the protrusion, the through hole in the protrusion of the fan adjusting blade is aligned with the threaded hole in the notch of the fan base, a connecting bolt is inserted into the through hole in the protrusion of the fan adjusting blade and the threaded hole in the notch of the fan base, the connecting bolt penetrates through the fan adjusting blade and the fan base, the fan adjusting blade is hinged with the fan base by screwing the connecting bolt, the connecting bolt is in clearance connection with the fan adjusting blade, and the fan adjusting blade rotates freely.
The fan for the synchronous motor test is characterized in that a gap is formed in the middle position of the first connecting block and the second connecting block, threaded holes are formed in the first connecting block and the second connecting block from top to bottom, the connecting rod is inserted into the gap, the through hole in one end of the connecting rod is aligned with the threaded hole in the second connecting block and then fixed through the connecting bolt, and the connecting rod is in clearance fit with the connecting bolt.
The fan for the synchronous motor test is characterized in that n threaded holes are formed in the second connecting block, wherein n is an odd number, and one threaded hole is formed in the first connecting block.
The invention relates to a fan for testing a synchronous motor, wherein the position of a threaded hole of a mounting seat fixed on a rotor bracket of the synchronous motor is as follows: one end of the connecting rod is fixed in a threaded hole of the first connecting block on the fan adjusting fan blade, and the other end of the connecting rod is fixed in a middle threaded hole of the second connecting block on the mounting seat.
When the threaded hole of the first connecting block at the bottom of the fan adjusting blade is connected with the threaded hole in the middle of the mounting seat through the connecting rod, the fan adjusting blade is adjusted to be at an initial angle, namely an included angle between the fan adjusting blade and a rotor support of the synchronous motor is 45 degrees.
The invention relates to a fan for testing a synchronous motor, wherein n fan adjusting fan blades are arranged on one side of a rotor support of the synchronous motor, and 2n fan adjusting fan blades are symmetrically arranged on two sides of the rotor support.
Example two: as shown in fig. 1 to 6, in the fan for testing the synchronous motor according to the present embodiment, screw holes are formed in a rotor holder of the synchronous motor for mounting a fan base and a mounting base. The fan base is connected to the rotor support through bolts, and meanwhile, the mounting seat is installed on the rotor support through bolts. Screw holes are arranged at the upper part and the lower part of the gap of the fan base. And aligning the through holes of the fan adjusting fan blades with the threaded holes at the notches of the fan base. The attachment bolts are inserted through the fan adjustment blades and the fan base. The fan adjusting fan blades are hinged to the mounting base through tightening the connecting bolts, and the connecting bolts are in clearance connection with the adjusting fan blades to ensure free rotation. The bottom position of the fan adjusting fan blade is provided with a connecting block for connection. The middle position of the connecting block is a vacancy for inserting the connecting rod. And threaded holes are present at corresponding positions of the connection block. After the through hole of the connecting rod is aligned with the threaded hole of the connecting block, the connecting bolt is installed. The connecting rod is in clearance fit with the connecting bolt so as to ensure that the connecting rod can freely rotate under the condition of being sleeved on the connecting bolt. The other side of the connecting rod is also connected with the mounting seat through the connecting bolt. Also, the connecting rod is in clearance fit, so that the connecting rod can rotate freely under the condition that the connecting rod is sleeved on the connecting bolt. One end of the connecting bolt is fixed on the mounting seat, and the other end of the connecting bolt is fixed on the connecting block of the adjusting fan blade, so that all the parts can be ensured not to rotate randomly and be completely fixed.
Because the mounting seat has different mounting holes. When the installation angle is required to be adjusted, the connecting bolt on the installation seat can be screwed off. The connecting bolt is retightened after aligning the connecting rod to the mounting hole of which the angle is desired to be adjusted. Thereby realizing the adjustment of the fan blade angle.
The rotor support of the synchronous motor has n fan blades on one side, and has 2n fan blades on two sides symmetrically, and only the structural characteristics of one fan blade are explained here. The qualitative requirement on the number of the fan blades and the distribution of the fan blades is not made.
The fan blade angle adjusting device is mainly used for the condition that the fan blade angle needs to be adjusted in the synchronous motor experiment process.
The synchronous motor is an effective technical means for controlling axial movement by adjusting the angle of the fan blades. In many cases, blade angle adjustment is required to control shaft play. Meanwhile, the adjustment of the angle of the fan blades is an effective technical means for controlling the cooling capacity of the cooling system of the synchronous motor.
In example three: as shown in fig. 1 to 6, the test process of the fan for testing the synchronous motor according to the present embodiment is briefly described as follows:
if the axial shift phenomenon occurs in the test process of the synchronous motor, the axial shift phenomenon needs to be improved by adjusting the angle of the fan blades. In the past, fan blades at different angles are required to be manufactured again, the fan blades on the original motor are detached after the manufacture is finished, and new fan blades are replaced again. Workers are cumbersome to operate and each time a fan blade is manufactured, it is necessary to wait for the fan blade for a full manufacturing cycle. And each test can only verify whether the axial channeling phenomenon can be improved by one angle. And sometimes the angle needs to be changed for a plurality of times, even 4 or 5 times. Every time the angle is changed, a great deal of time is wasted, and the disassembly and the assembly are troublesome. The construction period is seriously influenced frequently. And the fan blades with failed test results can cause inventory waste.
The utility model provides an experimental fan fixes fan base on synchronous machine rotor support earlier in the use, also fixes the mount pad on rotor support simultaneously, and the mounted position of fan base and the mounted position of mount pad all bore threaded hole in advance on rotor support, has fixed a position in advance. After the fan base is fixed, the fan adjusting fan blades are fixed on the side face of the fan base, one end of a connecting rod is fixed in a middle threaded hole of a connecting block on each fan adjusting fan blade, and the other end of the connecting rod is connected with a mounting seat which is lifted and fixed on the rotor support through a bolt. Wherein the connecting rod is correspondingly installed with the initial installation hole of the installation seat. Therefore, the initial angle of the fan blade which is initially installed is ensured. The test fan is installed; one end of the connecting rod is connected with the adjusting fan blades, and the other end of the connecting rod is connected with the mounting seat. The position of the mounting hole of the connecting rod on the mounting seat, which is close to one end of the mounting seat, is adjusted, namely the angle can be adjusted. When the fan blade is moved towards the mounting hole on one side close to the fan blade, the angle of the fan blade can be increased, and when the fan blade is moved towards the mounting hole on one side far away from the fan blade, the angle of the fan blade can be reduced. The angle of the fan blade can be changed by changing the installation position of the connecting rod.
By means of the invention, the test procedure is changed to replace the fan of the invention in the case of shaft play of the synchronous motor. And (4) testing to measure axial play, and if the axial play is not improved, stopping testing to change the angle of the fan blade, and increasing or decreasing the fixed angle. And (5) testing again. This test measures the shaft play again, and the degree that can lead to the shaft to play certainly changes because of the change of flabellum angle. The fan blade angle can be changed again through the law. Thereby improving the shaft running condition. And when the axial play is improved, the conventional fan blades can be produced according to the angle for installation and replacement. The fan is continuously used for the next test when the synchronous motor generates axial movement.
The test comparison of the two fans shows that the angle of the fan can be freely adjusted, and the time in the experimental process is greatly shortened. An entire manufacturing period for waiting for the fan blade to be manufactured is omitted. And no waste is caused. In addition, the fan blade can be disassembled and assembled frequently, namely, the fan arranged on the rotor support can be adjusted in angle without being disassembled. The operation is convenient.
The above description is only a preferred embodiment of the present invention, and these embodiments are based on different implementations of the present invention, and the scope of the present invention 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 invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. The fan for the synchronous motor test is characterized by comprising fan adjusting fan blades (1), a fan base (2), a connecting rod (3), a mounting seat (4), a connecting bolt (5) and a connecting bolt (6), wherein threaded holes are uniformly formed in a rotor support of the synchronous motor, the fan base (2) is installed on the rotor support of the synchronous motor through bolts, upper and lower threaded holes in the side surface of the fan base (2) are in clearance connection with the fan adjusting fan blades (1) through the connecting bolt (5), the synchronous motor rotor support on the right side of the fan base (2) is fixedly provided with the mounting seat (4) through bolts, the bottom of the fan adjusting fan blades (1) is provided with a first connecting block, the mounting seat (4) is provided with a second connecting block, and the first connecting block at the bottom of the fan adjusting fan blades (1) is connected with the second connecting block on the mounting seat (4) through the connecting rod (3).
2. The fan for the synchronous motor test according to claim 1, wherein a notch is formed in the middle of the side surface of the fan base (2), threaded holes are formed in the upper portion and the lower portion of the notch, the fan adjusting blade (1) is provided with a protrusion matched with the notch of the fan base (2), through holes are formed in the upper portion and the lower portion of the protrusion, the through holes in the protrusion of the fan adjusting blade (1) and the threaded holes in the notch of the fan base (2) are aligned, the connecting bolts (5) are inserted into the through holes in the protrusion of the fan adjusting blade and the threaded holes in the notch of the fan base (2) so that the connecting bolts (5) penetrate through the fan adjusting blade (1) and the fan base (2), the fan adjusting blade (1) and the fan base (2) are hinged by tightening the connecting bolts (5), the connecting bolts (5) are in clearance connection with the fan adjusting blade (1), and the fan adjusting blade (1) can rotate freely.
3. The fan for the synchronous motor test according to claim 1, wherein a gap is formed between the first connecting block and the second connecting block, threaded holes are formed in the first connecting block and the second connecting block from top to bottom, the connecting rod (3) is inserted into the gap, a through hole in one end of the connecting rod (3) is aligned with the threaded holes in the second connecting block and then fixed through the connecting bolt (6), and the connecting rod (3) and the connecting bolt (6) are in clearance fit.
4. The fan for the synchronous motor test as recited in claim 3, wherein n threaded holes are formed in the second connecting block, wherein n is an odd number, and one threaded hole is formed in the first connecting block.
5. The fan for testing the synchronous motor according to claim 4, wherein the positions of the mounting seat (4) fixed on the threaded holes on the rotor bracket of the synchronous motor are as follows: one end of the connecting rod (3) is fixed in a threaded hole of a first connecting block on the fan adjusting fan blade (1), and the other end of the connecting rod is fixed in a middle threaded hole of a second connecting block on the mounting seat (4).
6. The fan for testing the synchronous motor according to claim 5, wherein when the threaded hole of the first connecting block at the bottom of the fan adjusting blade (1) is connected with the threaded hole in the middle of the mounting seat (4) through the connecting rod (3), an initial angle of the fan adjusting blade (1) is adjusted for the fan, that is, an included angle between the fan adjusting blade (1) and a rotor support of the synchronous motor is 45 degrees.
7. The fan for testing the synchronous motor according to claim 1, wherein n fan adjusting blades (1) are arranged on one side of a rotor frame of the synchronous motor, and 2n fan adjusting blades (1) are symmetrically arranged on two sides of the rotor frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211660195.3A CN115773275B (en) | 2022-12-23 | 2022-12-23 | Fan for synchronous motor test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211660195.3A CN115773275B (en) | 2022-12-23 | 2022-12-23 | Fan for synchronous motor test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115773275A true CN115773275A (en) | 2023-03-10 |
| CN115773275B CN115773275B (en) | 2023-08-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211660195.3A Active CN115773275B (en) | 2022-12-23 | 2022-12-23 | Fan for synchronous motor test |
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| Country | Link |
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| CN (1) | CN115773275B (en) |
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| EP0805924A1 (en) * | 1995-01-25 | 1997-11-12 | Magiview Pty Ltd | An impeller |
| EP1070850A1 (en) * | 1999-07-23 | 2001-01-24 | Maytronics Ltd. | Rotary impeller |
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| CN104632682A (en) * | 2015-02-09 | 2015-05-20 | 浙江富春江水电设备有限公司 | Adjustable water-turbine generator set cooling fan and blade adjusting method thereof |
| CN206801939U (en) * | 2017-03-28 | 2017-12-26 | 天津市永亮水电设备制造有限公司 | A kind of adjustable turbine-generator units cooling fan |
| CN207879681U (en) * | 2017-11-03 | 2018-09-18 | 广州市威鸬鹚信息科技有限公司 | A kind of radiation type efficient motor blower fan |
| US20180335046A1 (en) * | 2017-05-18 | 2018-11-22 | Safran Aircraft Engines | Fan module with variable pitch blades |
| CN208754140U (en) * | 2018-10-17 | 2019-04-16 | 广州市创越机电设备有限公司 | A kind of adjustable permanent magnet synchronous motor |
| CN213099122U (en) * | 2020-07-08 | 2021-05-04 | 合肥市第二人民医院 | Special seat of self-adaptation pharynx swab sample |
| CN215397988U (en) * | 2021-02-22 | 2022-01-04 | 衡水学院 | Primary school's teaching is with fine arts teaching aid of portable mosaic structure |
| CN215632559U (en) * | 2021-09-09 | 2022-01-25 | 张家港市艾尔环保工程有限公司 | Novel hinge access door |
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2022
- 2022-12-23 CN CN202211660195.3A patent/CN115773275B/en active Active
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| DE2253701A1 (en) * | 1971-11-03 | 1973-05-10 | Philips Nv | FAN |
| SU534587A1 (en) * | 1974-12-30 | 1976-11-05 | Свердловский Ордена Трудового Красного Знамени Горный Институт Имени В.В.Вахрушева | Device for rotating blades of an axial fan |
| EP0805924A1 (en) * | 1995-01-25 | 1997-11-12 | Magiview Pty Ltd | An impeller |
| EP1070850A1 (en) * | 1999-07-23 | 2001-01-24 | Maytronics Ltd. | Rotary impeller |
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| CN208754140U (en) * | 2018-10-17 | 2019-04-16 | 广州市创越机电设备有限公司 | A kind of adjustable permanent magnet synchronous motor |
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| Publication number | Publication date |
|---|---|
| CN115773275B (en) | 2023-08-01 |
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