CN112039244B - Control moment gyro frame rotor assembly of precise support and assembling method - Google Patents
Control moment gyro frame rotor assembly of precise support and assembling method Download PDFInfo
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- CN112039244B CN112039244B CN202010808269.8A CN202010808269A CN112039244B CN 112039244 B CN112039244 B CN 112039244B CN 202010808269 A CN202010808269 A CN 202010808269A CN 112039244 B CN112039244 B CN 112039244B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
- H02K1/30—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures using intermediate parts, e.g. spiders
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
Abstract
The invention relates to a control moment gyro frame rotor assembly of a precise support and an assembling method. The frame is an integral octagonal structure formed by eight webs; the rotor is positioned in the frame, one end face of the rotor is connected with the outer end face of the frame web through a sliding end connecting plate, the other end face of the rotor is connected with the outer end face of the frame web through a fastening end connecting plate, the radial direction and the axial direction of the fastening end connecting plate are both rigidly connected, and the radial direction and the axial direction of the sliding end connecting plate are elastically connected; the rotor is driven by the motor to rotate continuously; the left sealing cover and the right sealing cover are assembled to form a sealed space, and the frame is fixed in the sealed space; the air suction nozzle is fastened on the left sealing cover and used for sucking the sealing space into a vacuum system. The invention effectively improves the frame supporting precision.
Description
Technical Field
The invention relates to a precisely supported control moment gyroscope frame rotor assembly, which is particularly suitable for improving the running stability of a shafting and the mechanical resistance and the thermal stability of a control moment gyroscope and belongs to the technical field of control moment gyroscopes.
Background
The control moment gyroscope is a key executing mechanism for realizing attitude control of the satellite. The technical research of the large-torque high-precision control moment gyro is developed for the requirements of quick maneuvering, quick stability and accurate pointing of the spacecraft in the future, the key technologies of high-speed bearing stable operation and precise support are broken through, the long service life and high quality of the control moment gyro are realized, and the reliability of the satellite in-orbit operation is improved.
The frame rotor assembly is a key component of the control moment gyro and mainly comprises a rotor and a frame. The rotor rotates at a high speed at a rated rotating speed to establish angular momentum; the frame assembly is used to support the rotor and provide a sealed, clean vacuum environment for the rotor. The design of the frame component with the precise supporting function has important significance for controlling the moment gyro to work stably on the rail and have long service life. The existing control moment gyroscope frame vacuumization deformation can reduce the supporting precision, change the preload of the bearing, cause the instability of the bearing, large power consumption and influence the service life of the whole machine. Meanwhile, the rotor is connected with the frame by adopting a scheme that one end of the rotor is fastened and the other end of the rotor slides, and the rotor has the defects of weaker resistance to mechanical property, poorer stability of a high-speed shaft system and the like.
Disclosure of Invention
The technical problem solved by the invention is as follows: the defects of the prior art are overcome, the control moment gyro frame rotor assembly of the precise support is provided, the frame support precision is effectively improved, the shafting operation stability is improved, and the mechanical resistance and the thermal stability of the control moment gyro are improved.
The technical scheme of the invention is as follows: a precisely supported control moment gyro frame rotor assembly comprises a left sealing cover, an air suction nozzle, a right sealing cover, a sliding end connecting plate, a frame, a rotor, a motor and a fastening end connecting plate; wherein:
the frame is an integrated octagonal structure formed by eight webs, the first web and the eighth web are sequentially connected end to end, the first web and the fifth web are parallel to each other, through holes are formed in the middle positions of the first web and the fifth web and are marked as shaft holes for being connected with two ends of a rotor through bearings, the rotor is located in the frame, one end face of the rotor is connected with the outer end face of the web of the frame through a sliding end connecting plate, the other end face of the rotor is connected with the outer end face of the web of the frame through a fastening end connecting plate, the radial direction and the axial direction of the fastening end connecting plate are rigidly connected, and the radial direction and the axial direction of the sliding end connecting plate are elastically connected; the rotor is driven by the motor to rotate continuously; the left sealing cover and the right sealing cover are assembled to form a sealed space, and the frame is fixed in the sealed space; the air suction nozzle is fastened on the left sealing cover and used for sucking the sealed space into a vacuum system, after the frame rotor assembly is vacuumized, the left sealing cover and the right sealing cover bear atmospheric pressure, the frame is used for supporting the rotor, and the vacuumizing deformation of the sealing covers does not influence the supporting precision of the frame, so that the precise support of the frame on the rotor is realized.
The sliding end connecting plate consists of an inner ring, an outer ring and N spokes connected between the inner ring and the outer ring, wherein N is more than or equal to 6;
the inner ring and the outer ring are coaxially arranged and staggered with a certain distance, the inner ring is fixedly connected with the end face of the rotor, and the outer ring is fixedly connected with the amplitude plate of the frame; the end face of the rotor and the web of the frame have a certain height difference H1, the inner ring of the sliding end connecting plate is higher than the outer ring, the height difference is H2, H2 is H1, and no residual stress is generated after the sliding end connecting plate, the frame and the rotor are assembled.
The radial and axial rigidity ratio of the sliding end connecting plate is more than or equal to 10.
The sliding end connecting plate is made of stainless steel materials, and the heat treatment process is hardening and tempering.
The fastening end connecting plate is a cylindrical thin plate and is fixedly connected with the end face of the rotor and the amplitude plate of the frame;
the left sealing cover and the right sealing cover are of hemispherical shell structures, and are combined to form a spherical shell after assembly.
The thermal expansion coefficient of the left sealing cover, the right sealing cover and the frame material is more than 2 times of that of the rotor material.
And the shaft holes on the first web and the fifth web of the frame are formed by one-time boring machining or grinding machining.
The coaxiality of the shaft holes in the first web and the fifth web is not less than 0.05mm, and the smoothness of the shaft holes is better than 0.8; the coaxiality of the shaft holes in the third web and the seventh web is not less than 0.05mm, and the smoothness of the shaft holes is better than 0.16; the perpendicularity between the axes of the shaft holes in the first web plate and the fifth web plate and the axes of the shaft holes in the third web plate and the seventh web plate is not less than 0.1 mm.
The assembling method of the precisely supported control moment gyro frame component comprises the following steps:
(s1) attaching the motor to the rotor;
(s2) loading the rotor into the frame; one end face of the rotor is connected with the outer end face of the frame web through a fastening end connecting plate;
(s3), measuring the height difference H1 between the other end face of the rotor and the outer end face of the frame web; grinding the height difference H2 between the inner ring and the outer ring of the sliding end connecting plate to make H2 equal to H1, and then fixedly connecting the end face of the other end of the rotor with the outer end face of the frame web plate through the sliding end connecting plate;
(s4) welding the suction nozzle to the left sealing cover.
(s5) attaching the left boot seal to the frame and the right boot seal to the frame. And welding a gap formed by the left sealing cover and the right sealing cover.
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention provides a scheme that a frame rotor assembly adopts double-end fastening support and elastic compensation: the fastening end connecting plate fixedly connects one end of the rotor with the frame, and the sliding end connecting plate fixedly connects the other end of the rotor with the frame. The sliding end connecting plate has the characteristics of large radial rigidity and small axial rigidity, and the characteristic of large radial rigidity enables the frame rotor to form a high-rigidity supporting system, a closed and stable pre-loading force system is formed, and the running stability and the mechanical resistance of the shaft system can be improved;
(2) the sliding end connecting plate has the characteristic of small axial rigidity, can realize temperature compensation of the frame rotor in high and low temperature environments, and improves the reliability of the temperature compensation of the sliding end of the long-span shafting in the high and low temperature environments.
(3) The frame is designed in a high-rigidity and light-weight mode, the frame is arranged in the sealing cover, the sealing cover bears atmospheric pressure, the sealing cover is vacuumized and deformed, supporting precision of the frame is not affected, and the frame is used for supporting the rotor to rotate and guaranteeing precise supporting of the frame to the rotor.
(4) The frame is integrally formed, the machining precision of the shaft hole of the frame can be effectively guaranteed, the detection is convenient, and the supporting precision of the frame is not influenced by repeated assembly and disassembly in the assembling process.
Drawings
FIG. 1 is a perspective view of a frame rotor assembly according to an embodiment of the present invention;
FIG. 2 is a schematic view of the hidden left seal cover according to the embodiment of the present invention;
FIG. 3 is a view illustrating the inner structure of the right sealing cover according to the embodiment of the present invention;
FIG. 4(a) is an outline view of a frame according to an embodiment of the present invention;
FIG. 4(b) is a schematic diagram of the frame of FIG. 4(a) rotated by a certain angle according to an embodiment of the present invention;
FIG. 5(a) is a schematic diagram of a sliding end connecting plate according to an embodiment of the present invention;
FIG. 5(b) is a schematic view of the thickness direction of the sliding end connecting plate according to the embodiment of the present invention;
FIG. 6 is an external view of a fastening end connecting plate according to an embodiment of the present invention.
Detailed Description
The invention is further illustrated by the following examples.
As shown in fig. 1, 2 and 3, the invention provides a precision-supported control moment gyro frame rotor assembly, which comprises a left sealing cover 1, an air suction nozzle 2, a right sealing cover 3, a sliding end connecting plate 4, a frame 5, a rotor 6, a motor 7 and a fastening end connecting plate 8; the left sealing cover 1 and the right sealing cover 3 are of hemispherical shell structures, and are assembled to form a spherical shell after being combined.
As shown in fig. 4(a) and 4(b), the frame 5 is an integral octagonal structure formed by eight webs, the first web and the eighth web are sequentially connected end to end, wherein the first web and the fifth web are parallel to each other, and through holes are formed in the middle positions of the first web and the fifth web, which are marked as shaft holes, and are used for being connected with two ends of the rotor 6 through bearings, the rotor 6 is located in the frame 5, one end face of the rotor 6 is connected with the outer end face of the web of the frame 5 through a sliding end connecting plate 4, the other end face of the rotor 6 is connected with the outer end face of the web of the frame 5 through a fastening end connecting plate 8, the radial direction and the axial direction of the fastening end connecting plate 8 are both rigidly connected, the radial direction of the sliding end connecting plate 4 is rigidly connected, and the axial direction is elastically connected; the motor 7 is fastened on the rotor 6 through a screw, and the rotor 6 continuously rotates under the driving of the motor 7; the left sealing cover 1 and the right sealing cover 3 are assembled to form a sealed space, and the frame 5 is fixed in the sealed space; the air suction nozzle 2 is fastened on the left sealing cover 1 and used for sucking the sealed space into a vacuum system, after the frame rotor assembly is vacuumized, the left sealing cover 1 and the right sealing cover 3 bear atmospheric pressure, the frame is used for supporting the rotor, and the vacuumizing deformation of the sealing covers does not influence the supporting precision of the frame, so that the precise supporting of the frame on the rotor is realized.
As shown in fig. 5(a) and 5(b), the sliding end connecting plate adopts a leaf spring type elastic design, which has the advantages that: the radial rigidity is large, the axial rigidity is small, and the axial micro-deformation can be realized while the radial high-rigidity support is provided. Specifically, the sliding end connecting plate 4 consists of an inner ring, an outer ring and N spokes connected between the inner ring and the outer ring, wherein N is more than or equal to 6;
the inner ring and the outer ring are coaxially arranged and staggered with a certain distance, the inner ring is fixedly connected with the end face of the rotor 6, and the outer ring is fixedly connected with the amplitude plate of the frame 5; the end face of the rotor 6 and the web of the frame 5 have a certain height difference H1, the frame rotor has errors in the processes of part processing and assembling, so that H1 is an uncertain value, the inner ring of the sliding end connecting plate 4 is higher than the outer ring, the height difference is H2, and H2 is H1 by grinding the height of the inner ring, so that no residual stress exists after the sliding end connecting plate 4 is assembled with the frame 5 and the rotor 6. The ratio of the radial rigidity to the axial rigidity of the sliding end connecting plate 4 can be adjusted by optimizing the length, the width and the thickness of the spokes, and the ratio of the radial rigidity to the axial rigidity of the sliding end connecting plate 4 is more than or equal to 10 as a preferable scheme. The sliding end connecting plate 4 is made of stainless steel materials, and in order to ensure that the connecting plate has certain elasticity in the axial direction, the thermal treatment process is hardening and tempering. In a specific embodiment of the invention, the sliding end connecting plate is in a hollow design, an inner ring and an outer ring of the connecting plate are connected through 6 spokes, the inner ring is fixedly connected with the rotor, and the outer ring is fixedly connected with the frame.
The characteristic that the radial rigidity of the connecting plate at the sliding end is large enables the frame rotor to form a high-rigidity supporting system, a closed and stable pre-loading force system is formed, and the running stability and the mechanical resistance of the shaft system can be improved. The sliding end connecting plate has the characteristic of small axial rigidity, temperature compensation of the frame rotor assembly in high and low temperature environments can be realized, and the reliability of temperature compensation of the sliding end of the long-span shafting in the high and low temperature environments is improved.
As shown in fig. 6, the fastening end connecting plate 8 is a cylindrical thin plate, and is fixedly connected with the end face of the rotor 6 and the web of the frame 5; the fastening end connecting plate is respectively connected with the rotor and the other end face of the frame through screws.
Preferably, the web of the frame 5 is provided with lightening holes. The lightening holes are square, triangular or round. In a specific embodiment of the invention, the web plate of the frame is provided with 16 triangular lightening holes, so that the high-rigidity and light-weight design is realized.
Preferably, the shaft holes of the first web and the fifth web of the frame 5 are formed by one-time boring or grinding.
Preferably, the coaxiality of the shaft holes in the first web and the fifth web is not less than 0.05mm, and the smoothness of the shaft holes is better than 0.8; the coaxiality of the shaft holes in the third web and the seventh web is not less than 0.05mm, and the smoothness of the shaft holes is better than 0.16; the perpendicularity between the axes of the shaft holes in the first web plate and the fifth web plate and the axes of the shaft holes in the third web plate and the seventh web plate is not less than 0.1 mm.
Preferably, the thermal expansion coefficient of the materials of the left sealing cover 1, the right sealing cover 3 and the frame 5 is more than 2 times of that of the rotor 6. The left sealing cover and the right sealing cover are connected with the frame through welding.
The left sealing cover, the air suction nozzle and the right sealing cover form a sealing system, the spherical shell is assembled, air is sucked through the air suction nozzle to form a vacuum system, and a sealed and clean vacuum environment is provided for the rotor assembly. The frame is located inside left sealed cowling and the right sealed cowling. After the frame rotor assembly is vacuumized, the left sealing cover and the right sealing cover bear atmospheric pressure, the frame is used for supporting the rotor, and the vacuumizing deformation of the sealing covers does not influence the supporting precision of the frame, so that the precise supporting of the frame on the rotor is realized.
The assembling method of the precisely supported control moment gyro frame component comprises the following steps:
s1, fixedly connecting the motor 7 to the rotor 6;
s2, mounting the rotor 6 in the frame 5; one end face of the rotor 6 is connected with the outer end face of the frame 5 through a fastening end connecting plate 8;
s3, measuring the height difference H1 between the other end face of the rotor 6 and the outer end face of the web plate of the frame 5; grinding the height difference H2 between the inner ring and the outer ring of the sliding end connecting plate 4 to make H2 equal to H1, and then fixedly connecting the end face of the other end of the rotor 6 with the outer end face of the web of the frame 5 through the sliding end connecting plate 4;
s4, welding the suction nozzle 2 on the left sealing cover 1.
s5 fastens the left boot seal 1 to the frame 5 and the right boot seal 3 to the frame 5. And welding the seam formed by the left sealing cover 1 and the right sealing cover 3.
Example (b):
as shown in figure 1, the precision supporting frame rotor assembly comprises a left sealing cover 1, an air suction nozzle 2, a right sealing cover 3, a sliding end connecting plate 4, a frame 5, a rotor 6, a motor 7 and a fastening end connecting plate 8.
As shown in fig. 2, the suction nozzle 2 is fastened to the left sealing cap 1 by screws, and the left sealing cap 1 and the right sealing cap 3 are connected to the frame 5 by welding. The sliding end connecting plate 4 is respectively connected with the upper end of the rotor 6 and the upper end of the frame 5 through screws, and the sliding end connecting plate 4 is respectively connected with the upper end of the rotor 6 and the upper end of the frame 5 through screws. The fastening end connecting plate 8 is connected with the lower end of the rotor 6 and the lower end of the frame 5 through screws respectively. The motor rotor 7 is fastened on the rotor 6 through screws, and the motor stator 8 is fastened at the lower end of the frame 5 through screws.
As shown in fig. 2, the frame 5 is an integral octagonal structure, and a through hole is formed in the middle of the upper end and the lower end for mounting the rotor. The frame has 16 triangle-shaped lightening holes on the width plate, realizes high rigidity lightweight design. The shaft holes at the upper end and the lower end of the frame are bored or ground at one time, so that the processing precision of the frame can be effectively guaranteed, and the frame is convenient to inspect. Repeated disassembly and assembly in the assembly process does not affect the supporting precision of the frame.
The sliding end connecting plate 4 is designed in a hollow mode, an inner ring and an outer ring of the connecting plate are connected through 6 spokes, the inner ring is fixedly connected with the rotor 6, and the outer ring is fixedly connected with the frame 5. The sliding end connecting plate 4 has the characteristics of large radial rigidity and small axial rigidity, and can realize small deformation in the axial direction while providing radial high-rigidity support. The characteristic that the radial rigidity of the sliding end connecting plate 4 is large enables the frame rotor assembly to form a high-rigidity supporting system, a closed and stable pre-loading system is formed, and the operation stability and the mechanical resistance of the system can be improved. The sliding end connecting plate 4 has the characteristic of small axial rigidity, so that the temperature compensation of the frame rotor assembly in high and low temperature environments can be realized, and the reliability of the temperature compensation of the sliding end of the long-span shafting in the high and low temperature environments is improved.
The left sealing cover 1, the air suction nozzle 2 and the right sealing cover 3 form a sealing system, a spherical shell is assembled, air is sucked through the air suction nozzle 2 to form a vacuum system, and a sealed and clean vacuum environment is provided for the rotor 6. The frame 5 is located inside the left and right seal covers 1 and 3. After the frame rotor assembly is vacuumized, the left sealing cover 1 and the right sealing cover 3 bear atmospheric pressure, the frame is used for supporting the rotor, and the vacuumizing deformation of the sealing covers does not influence the supporting precision of the frame, so that the precise support of the frame on the rotor is realized.
The assembling method of the frame rotor assembly comprises the following steps:
(1) the motor 7 is fixedly connected to the rotor 6;
(2) the rotor 6 is arranged in the frame 5; the end face of one end of the rotor 6 is connected to the outer end face of the web of the frame 5 by a fastening end connection plate 8. The height difference H1 between the other end face of the rotor 6 and the outer end face of the web of the frame 5 is measured. The difference in height H2 between the inner ring and the outer ring of the sliding end connecting plate 4 is ground so that H2 is H1, and then the other end face of the rotor 6 and the outer end face of the web of the frame 5 are fixedly connected by the sliding end connecting plate 4.
(3) And welding the air suction nozzle 2 on the left sealing cover 1.
(4) And fixedly connecting the left sealing cover 1 with the frame 5, and fixedly connecting the right sealing cover 3 with the frame 5. And welding the seam formed by the left sealing cover 1 and the right sealing cover 3.
Compared with the prior structure, the frame rotor assembly of the invention has the following main effects:
(1) the percentage of the increase of the current value before and after the vacuum pumping is a measure index of the stability of the rotor assembly shafting, and the smaller the percentage is, the more stable the shafting is.
| Item | Structure of the invention | Conventional structure |
| Current value of motor before vacuum pumping | 0.5A | 0.5A |
| Current value of motor after vacuum pumping | 0.5A | 0.8 |
| Percentage increase | ||
| 0 | 60％ |
(2) The dynamic unbalance of the rotor component influences the service life and the vibration noise level of the control moment gyro, and the smaller the dynamic unbalance after mechanics is, the longer the service life of the control moment gyro is and the lower the vibration noise is.
| Item | Structure of the invention | Conventional structure |
| Dynamic unbalance of front rotor assembly | 1g.cm2 | 1g.cm2 |
| Dynamic unbalance of rotor component after mechanics | 1.3g.cm2 | 3g.cm2 |
| Percentage increase | 30％ | 200％ |
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make variations and modifications of the present invention without departing from the spirit and scope of the present invention by using the methods and technical contents disclosed above.
Claims (9)
1. A precisely supported control moment gyro frame rotor assembly is characterized by comprising a left sealing cover (1), an air suction nozzle (2), a right sealing cover (3), a sliding end connecting plate (4), a frame (5), a rotor (6), a motor (7) and a fastening end connecting plate (8); wherein:
the frame (5) is of an integral octagonal structure formed by eight webs, the first web and the eighth web are sequentially connected end to end, the first web and the fifth web are parallel to each other, through holes are formed in the middle positions of the first web and the fifth web and are marked as shaft holes and used for being connected with two ends of a rotor (6) through bearings, the rotor (6) is located in the frame (5), one end face of the rotor (6) is connected with the outer end face of the web of the frame (5) through a sliding end connecting plate (4), the other end face of the rotor (6) is connected with the outer end face of the web of the frame (5) through a fastening end connecting plate (8), the radial direction and the axial direction of the fastening end connecting plate (8) are rigidly connected, the radial direction of the sliding end connecting plate (4) is rigidly connected, and the axial direction of the sliding end connecting plate is elastically connected; the rotor (6) is driven by the motor (7) to rotate continuously; the left sealing cover (1) and the right sealing cover (3) are assembled to form a sealed space, and the frame (5) is fixed in the sealed space; the air suction nozzle (2) is fastened on the left sealing cover (1) and used for sucking air from the sealing space into a vacuum system, after the frame rotor assembly is vacuumized, the left sealing cover (1) and the right sealing cover (3) bear atmospheric pressure, the frame is used for supporting the rotor, and the vacuumizing deformation of the sealing covers does not influence the supporting precision of the frame, so that the precise supporting of the frame on the rotor is realized.
2. A precision supported control moment gyro frame rotor assembly according to claim 1, characterized in that the sliding end connection plate (4) consists of an inner ring, an outer ring and N spokes connecting between the inner and outer rings, N being greater than or equal to 6;
the inner ring and the outer ring are coaxially arranged and staggered with a certain distance, the inner ring is fixedly connected with the end face of the rotor (6), and the outer ring is fixedly connected with the amplitude plate of the frame (5); the end face of the rotor (6) and the web of the frame (5) have a certain height difference H1, the inner ring of the sliding end connecting plate (4) is higher than the outer ring, the height difference is H2, and H2 is H1, so that no residual stress exists after the sliding end connecting plate (4), the frame (5) and the rotor (6) are assembled.
3. A precision supported control moment gyro frame rotor assembly according to claim 1, characterized in that the sliding end web (4) has a radial to axial stiffness ratio of 10 or more.
4. A precision supported control moment gyro frame rotor assembly according to claim 1, characterized in that the sliding end connection plate (4) is made of stainless steel material and the heat treatment process is quenching and tempering.
5. A precision supported control moment gyro frame rotor assembly according to claim 1, characterized in that the fastening end connection plate (8) is a cylindrical thin plate, the fastening end connection plate (8) being fixedly connected to both the end face of the rotor (6) and the web of the frame (5).
6. A precision supported control moment gyro frame rotor assembly in accordance with claim 1, wherein the left (1) and right (3) sealing caps are of hemispherical shell construction, assembled to form a spherical shell.
7. A precision supported control moment gyro frame rotor assembly according to claim 1, characterized in that the thermal expansion coefficient of the left (1), right (3) and frame (5) materials is more than 2 times the thermal expansion coefficient of the rotor (6) materials.
8. A precision supported control moment gyro frame rotor assembly according to claim 1, characterised in that the shaft holes in the first and fifth webs of the frame (5) are bored or ground in one pass.
9. A method of assembling a precision supported control moment gyro frame rotor assembly in accordance with claim 1 including the steps of:
s1, fixedly connecting the motor (7) to the rotor (6);
s2, installing the rotor (6) in the frame (5); the end face of one end of the rotor (6) is connected with the outer end face of the web plate of the frame (5) through a fastening end connecting plate (8);
s3, measuring the height difference H1 between the other end face of the rotor (6) and the outer end face of the web plate of the frame (5); grinding the height difference H2 between the inner ring and the outer ring of the sliding end connecting plate (4) to make H2 equal to H1, and then fixedly connecting the end face of the other end of the rotor (6) with the outer end face of the web of the frame (5) through the sliding end connecting plate (4);
s4, welding the air suction nozzle (2) on the left sealing cover (1);
s5, fixedly connecting the left sealing cover (1) with the frame (5), fixedly connecting the right sealing cover (3) with the frame (5), and welding a gap formed by the left sealing cover (1) and the right sealing cover (3).
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| CN100538270C (en) * | 2007-12-26 | 2009-09-09 | 北京航空航天大学 | Double-frame magnetic suspension control moment gyro |
| KR101929966B1 (en) * | 2014-06-11 | 2018-12-17 | 에스티 일렉트로닉스 (샛콤 앤드 센서 시스템즈) 피티이 리미티드 | Control moment gyroscope module for satellites |
| CN106556385B (en) * | 2016-10-20 | 2019-10-22 | 北京控制工程研究所 | A kind of Novel control moment gyro frame assembly structure |
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