CN217805340U - Satellite reaction flywheel module and spacecraft attitude control actuating mechanism - Google Patents
Satellite reaction flywheel module and spacecraft attitude control actuating mechanism Download PDFInfo
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- CN217805340U CN217805340U CN202221017204.2U CN202221017204U CN217805340U CN 217805340 U CN217805340 U CN 217805340U CN 202221017204 U CN202221017204 U CN 202221017204U CN 217805340 U CN217805340 U CN 217805340U
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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Abstract
The application discloses satellite reaction flywheel module and spacecraft appearance accuse actuating mechanism, the motor, the bearing assembly, the wheel body constitutes a quality wholly, and arrange a set of isolator subassembly in through the support in, in vibration, the impact environment, the quality wholly produces the displacement, the flywheel utilizes the load that the isolator decay transmitted to the bearing from the base this moment, when the wheel body contacted upper and lower dog, the holistic kinetic energy of quality turned into the material elastic potential energy and further reduced the load that the bearing bore, and then reached the purpose that reduces the requirement to the anti mechanical ability of bearing. When the wheel body is static or works normally, a small gap is kept between the wheel body and the stop block, in a vibration environment, the wheel body collides with the stop block to convert kinetic energy into elastic potential energy of the stop block material, and other part of energy is dissipated through material damping; the requirement of the flywheel bearing assembly on the mechanical resistance can be reduced.
Description
Technical Field
The application relates to the technical field of aerospace, in particular to a satellite reaction flywheel module and a spacecraft attitude control actuating mechanism.
Background
Spacecraft such as satellites, airships and the like rely on the attitude control actuating mechanism to adjust the attitude, and with the rapid development of commercial aerospace, the requirements on the attitude control actuating mechanism are increased on the basis of long service life and high reliability, and the spacecraft is miniaturized, light in weight and low in power consumption.
The spacecraft attitude control actuating mechanism comprises a reaction flywheel, a control moment gyroscope, a magnetic torquer and the like, wherein the reaction flywheel is an important choice for attitude control, a novel structural scheme is adopted on the premise of ensuring high precision and high stability, the requirements of the reaction flywheel on the size and the performance of a core component are reduced, and the manufacturing and launching cost of the spacecraft is further reduced.
Therefore, how to reduce the load born by the flywheel bearing in the vibration environment, and further reduce the requirement on the mechanical resistance of the bearing, and achieve the purpose of reducing the manufacturing and launching cost of the flywheel is a technical problem to be continuously solved.
SUMMERY OF THE UTILITY MODEL
The main purpose of this application provides a satellite reaction flywheel module and spacecraft attitude control actuating mechanism, through reducing the load that the flywheel bearing bore in the vibration environment, and then reduces the anti mechanical properties requirement of counter bearing, reaches the purpose that reduces flywheel manufacturing and launching cost.
In order to achieve the above object, the present application provides the following techniques:
this application first aspect a satellite reaction flywheel module includes:
the flywheel shell is used as a mounting shell of the satellite reaction flywheel module;
the vibration isolator assembly is fixedly arranged inside the flywheel shell;
the bracket is horizontally arranged and is fixed in the flywheel shell through the vibration isolator assembly;
the motor is fixedly arranged on the bracket;
the wheel body is fixedly arranged on the motor and driven to rotate by the motor;
the stop block assembly is arranged in the flywheel shell and limits the axial displacement of the wheel body;
and the control assembly is arranged in the flywheel shell and used for providing power and controlling the wheel body to move.
As an optional embodiment of the present application, optionally, the flywheel housing comprises:
the base is fixedly arranged on the fixing surface and used for transmitting the load applied from the outside;
the shell is installed on the top of the base in a matching mode;
the bottom plate is installed at the bottom of the base in a matching mode;
the control assembly is horizontally and fixedly arranged on the bottom surface of the base.
As an optional embodiment of the present application, optionally, the stent comprises:
the mounting hole is arranged on the bracket;
the vibration isolator assembly is matched to penetrate through the mounting hole, and the support is fixedly mounted on the top surface of the base.
As an optional embodiment of the present application, optionally, the stent further comprises:
the spokes are uniformly arranged on the side surface of the bracket in a circumferential and horizontal manner;
the mounting holes are formed in the spokes.
As an optional embodiment of the present application, optionally, the isolator assembly comprises:
the lower vibration isolation block is arranged on the upper surface of the base;
the upper vibration isolation block is arranged on the upper surface of the bracket, and the lower end of the upper vibration isolation block is sequentially matched with and penetrates into the mounting hole and the lower vibration isolation block;
the metal sleeve is sequentially penetrated into the upper vibration isolation block and the lower vibration isolation block in a matching manner;
and the locking bolt sequentially penetrates into the metal sleeve and the base, and the vibration isolator assembly is fixed on the base through the locking bolt.
As an optional embodiment of the present application, optionally, the electric machine comprises:
the bearing assembly is vertically and fixedly arranged on the upper surface of the bracket; the wheel body is installed on the bearing assembly in a matching mode;
the stator is coaxially arranged with the bearing assembly and is vertically and fixedly arranged on the upper surface of the bracket;
the rotor is coaxially arranged with the bearing assembly and is vertically and fixedly arranged on the lower surface of the wheel body;
the stator is coaxially positioned in the rotor, and the motor is started to drive the wheel body to rotate through the rotor.
As an optional embodiment of the present application, optionally, the stopper assembly comprises:
the upper stop block is arranged on the inner side surface of the shell;
the lower stop block is arranged on the inner side surface of the base and corresponds to the upper stop block up and down;
the edge of the wheel body is positioned between the upper stop block and the lower stop block.
As an alternative embodiment of the present application, optionally, a working clearance is left between the upper surface of the wheel body and the upper stop 8, and between the lower surface of the wheel body and the lower stop.
As an optional embodiment of the present application, optionally, the method further includes:
the first shoulder is arranged on the inner side surface of the shell;
the second shoulder is arranged on the inner side surface of the base and corresponds to the first shoulder up and down;
the upper stop block is arranged on the first shoulder, and the lower stop block is arranged on the second shoulder; and at least two pairs of upper stop blocks and lower stop blocks are uniformly arranged on the circumference.
The second aspect of the application provides a spacecraft attitude control actuating mechanism, which comprises the satellite reaction flywheel module.
Compared with the prior art, this application can bring following technological effect:
1. the application provides a satellite reaction flywheel, includes: the flywheel shell is used as a mounting shell of the satellite reaction flywheel module; the vibration isolator assembly is fixedly arranged inside the flywheel shell; the bracket is horizontally arranged and is fixed in the flywheel shell through the vibration isolator assembly; the motor is fixedly arranged on the bracket; the wheel body is fixedly arranged on the motor and driven to rotate by the motor; the stop block assembly is arranged in the flywheel shell and limits the axial displacement of the wheel body; and the control assembly is arranged in the flywheel shell and used for providing a power supply and controlling the wheel body to move. The motor, the bearing assembly and the wheel body form a whole mass, the whole mass is arranged on a group of vibration isolator assemblies through a support, the whole mass generates displacement in vibration and impact environments, at the moment, the flywheel attenuates load transmitted from the base to the bearing by using the vibration isolators, when the wheel body contacts with the upper stop block and the lower stop block, the kinetic energy of the whole mass is converted into elastic potential energy of materials, the load borne by the bearing is further reduced, and the purpose of reducing the requirement on the mechanical capacity of the bearing is further achieved.
2. When the wheel body is static or works normally, a small gap is kept between the wheel body and the stop block, in a vibration environment, the wheel body collides with the stop block to convert kinetic energy into elastic potential energy of the stop block material, and other part of energy is dissipated through material damping; the requirement of the flywheel bearing assembly on the mechanical resistance can be reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:
fig. 1 shows an exploded view of an embodiment of the present invention.
Fig. 2 shows a view of the full-section structure of the present invention.
Figure 3 shows an exploded view of the isolator assembly of the present invention.
Detailed Description
In order to make the technical solutions of the present application better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the accompanying drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances in order to facilitate the description of the embodiments of the application herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
In addition, the term "plurality" shall mean two as well as more than two.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example 1
According to the technology, the motor, the bearing assembly and the wheel body form a whole mass, the whole mass is arranged on the vibration isolator assemblies through the support, the whole mass generates displacement in vibration and impact environments, at the moment, the flywheel attenuates load transmitted to the bearing from the base by using the vibration isolators, when the wheel body contacts the upper stop block and the lower stop block, the whole kinetic energy of the mass is converted into elastic potential energy of materials, the load borne by the bearing is further reduced, and the purpose of reducing the requirement on the mechanical capacity of the bearing is further achieved.
As shown in fig. 1 and 2, a satellite reaction flywheel module according to a first aspect of the present application includes:
the flywheel shell is used as a mounting shell of the satellite reaction flywheel module; the satellite reaction flywheel is in a revolving body structure, so that the flywheel shell is correspondingly in a circular shell structure. Will be applied to the satellite reaction flywheel module installation casing with this application. The specific structure of the flywheel housing will be described in detail below.
The vibration isolator component 2 is fixedly arranged inside the flywheel shell; a wheel body 7 is arranged in the flywheel shell, and the wheel body 7 is driven by a motor to rotate. And the motor is fixedly mounted on the bracket 3. In vibration and impact environments, the mass of the integral flywheel module integrally generates displacement. In order to reduce vibration and shock, a vibration isolator assembly 2 is installed inside the flywheel housing, and vibration and shock are prevented by confining the wheel body in the vibration isolator assembly 2. In vibration and impact environments, the flywheel can attenuate load transmitted from the base to the bearing by using the vibration isolator, and when the wheel body contacts the upper stop block and the lower stop block, the kinetic energy of the whole mass is converted into elastic potential energy of materials to further reduce the load borne by the bearing, so that the aim of reducing the requirement on the mechanical resistance of the bearing is fulfilled.
The bracket 3 is horizontally arranged and is fixed in the flywheel shell through the vibration isolator assembly 2; as shown in fig. 3, the body of the bracket 3 is a circular plate structure, and spokes are arranged around the body, and mounting holes are formed in the spokes for horizontally and fixedly mounting the bracket 3 in the flywheel housing. In this embodiment, the fastening is performed by fastening the fastening member of the vibration isolator assembly 2 by the fastening bolts 2-01, and the fastening bolts 2-01 fasten the vibration isolator assembly 2 to the bracket 3 and fasten the bracket 3 to the base 1 of the flywheel housing.
The motor is fixedly arranged on the bracket 3; the flywheel wheel body 7 needs to rotate and is driven by a motor arranged on the bracket 3.
The wheel body 7 is fixedly arranged on the motor, and the wheel body 7 is driven to rotate by the motor; the wheel 7 may be fixed to a stator or rotor of an electric motor, which is activated and which acts to rotate the wheel 7. The wheel body 7 is ensured to rotate with precision by means of the bearing assembly 5 of the motor.
The stop block assembly is arranged in the flywheel shell and limits the axial displacement of the wheel body 7; in order to further reduce the requirement of the flywheel bearing assembly on the mechanical resistance, a stop block assembly is further arranged in the flywheel housing. When the flywheel bearing assembly is static or normally works, a small gap is kept between the wheel body 7 and the stop block, kinetic energy is converted into elastic potential energy of the stop block material by the collision of the wheel body 7 and the stop block in a vibration environment, and in addition, partial energy is dissipated through material damping, so that the requirement of the flywheel bearing assembly on mechanical property resistance can be reduced. Therefore, in a vibration environment, the small axial displacement of the wheel body 7 can be limited, the wheel body collides with the stop block, and the stop block converts the kinetic energy into the elastic potential energy of the stop block material.
And the control assembly 10 is arranged in the flywheel shell and is used for providing power and controlling the wheel body 7 to move. A control assembly 10 is mounted on the base 1 and functions to provide power and control the movement of the wheels. The connection manner and lines of the control assembly 10 and the electronic devices electrically connected therewith are not limited herein.
The fixed connection mode of the motor and the fixed connection mode of the wheel body 7 can adopt bolt fixing and the like, and the embodiment is not limited.
As an optional embodiment of the present application, optionally, the flywheel housing comprises:
the base 1 is fixedly arranged on the fixed surface and used for transmitting the load applied from the outside;
the shell 6 is installed at the top of the base 1 in a matching mode;
the bottom plate 11 is arranged at the bottom of the base 1 in a matching way;
the control assembly 10 is horizontally and fixedly installed on the bottom surface of the base 1.
As shown in fig. 2, the base 1 is a lower half structure of a circular shell, and has an upper opening for connecting the upper shell 6, and the two are fixedly connected by bolts or the like. The bottom of the base 1 is open and is matched with a round bottom plate 11 for bottom sealing.
As shown in fig. 2, the inner side surface of the base 1 needs to be provided with components of the flywheel module, so that the inner side surface is provided with structures such as a mounting shaft shoulder, and the like, the control assembly 10 is horizontally and fixedly mounted on the bottom surface of the base 1 through bolts, and a proper station distance is left between the control assembly and the bottom plate 11, so that the internal components are protected, and direct damage is avoided.
As an optional embodiment of the present application, optionally, the support 3 comprises:
the mounting hole 3-01 is arranged on the bracket 3;
the vibration isolator assembly 2 is matched to penetrate through the mounting holes 3-01, and the support 3 is fixedly mounted on the top surface of the base 1.
As shown in fig. 3, each vibration isolator assembly 2 comprises a locking bolt 2-01, and the locking bolt 2-01 is used for matching and limiting the vibration isolator assembly 2 on the bracket 3 and fixedly installing the bracket 3 on the top surface of the base 1 through the installation hole 3-01 on the bracket 3.
As an optional embodiment of the present application, optionally, the bracket 3 further includes:
the spokes are uniformly arranged on the side surface of the bracket 3 in a horizontal mode;
the mounting holes 3-01 are formed in the spokes.
As shown in fig. 1, four sets of vibration isolator assemblies 2 are uniformly arranged on the circumference of the bracket 3, and thus four corresponding mounting holes 3-01 are formed. In particular on the four spoke ends of the body of the support 3.
As an alternative embodiment of the present application, optionally, the vibration isolator assembly 2 comprises:
the lower vibration isolation block 2-04 is arranged on the upper surface of the base 1;
the upper vibration isolation block 2-03 is arranged on the upper surface of the bracket 3, and the lower end of the upper vibration isolation block is sequentially matched with and penetrates through the mounting hole 3-01 and the lower vibration isolation block 2-04;
the metal sleeve 2-02 penetrates through the upper vibration isolation block 2-03 and the lower vibration isolation block 2-04 in a matching manner in sequence;
the locking bolt 2-01 penetrates through the metal sleeve 2-02 and the base 1 in sequence, and the vibration isolator assembly 2 is fixed on the base 1 through the locking bolt 2-01.
As shown in fig. 3, each vibration isolator assembly 2 includes two vibration isolators disposed in a vertically corresponding manner, i.e., an upper vibration isolation block 2-03 and a lower vibration isolation block 2-04, and the bracket 3 is clamped between the upper vibration isolation block 2-03 and the lower vibration isolation block 2-04 to achieve overall vibration and impact isolation.
The upper vibration isolation block 2-03 and the lower vibration isolation block 2-04 are provided with through holes for installation. In order to protect the upper vibration isolation block 2-03 and the lower vibration isolation block 2-04, the upper vibration isolation block 2-03 and the lower vibration isolation block 2-04 are sequentially penetrated through a metal sleeve 2-02 in a matching manner. When the vibration isolator is fixed, the locking bolts 2-01 sequentially penetrate through the metal sleeve 2-02 and the base 1, and the vibration isolator assembly 2 is fixed on the base 1 through the locking bolts 2-01.
As an optional embodiment of the present application, optionally, the motor comprises:
the bearing assembly 5 is vertically and fixedly arranged on the upper surface of the bracket 3; the wheel body 7 is installed on the bearing assembly 5 in a matching way;
a stator 4-01 coaxially disposed with the bearing assembly 5 and vertically fixed on the upper surface of the bracket 3;
the rotor 4-02 is coaxially arranged with the bearing assembly 5 and is vertically and fixedly arranged on the lower surface of the wheel body 7;
the stator 4-01 is coaxially positioned in the rotor 4-02, and the wheel body 7 is driven to rotate by the rotor 4-02 when a motor is started.
As shown in fig. 1 and 2, the motor is fixedly mounted on the upper surface of the bracket 3. In this embodiment, one end of the bearing assembly 5 is fixedly mounted on the upper surface of the bracket 3, and the other end is used for fixedly mounting the wheel body 7. In this embodiment, the rotor 4-02 of the motor drives the wheel body 7 to rotate. Thus, the rotor 4-02 is vertically fixed to the lower surface of the wheel 7.
The stator 4-01 of the motor is arranged on the bracket 3; the bearing assembly 5 is mounted on the bracket 3; the wheel body 7 is arranged on the bearing assembly 5; the rotor 4-02 of the motor is arranged on the wheel body 7, the wheel body 7 is driven to rotate by driving the rotor 4-02 of the motor, and the wheel body 7 ensures the rotation precision by means of the bearing assembly 5.
As an optional embodiment of the present application, optionally, the stopper assembly comprises:
the upper stop block 8 is arranged on the inner side surface of the shell 6;
the lower stop block 9 is arranged on the inner side surface of the base 1 and corresponds to the upper stop block 8 up and down;
the edge of the wheel body 7 is positioned between the upper stop 8 and the lower stop 9.
As shown in fig. 2, the stopper assembly includes the upper stopper 8 and the lower stopper which are disposed up and down, and the edge of the wheel body 7 is located between the upper stopper 8 and the lower stopper 9. In a vibration environment, the wheel body 7 converts kinetic energy into elastic potential energy of the material of the stop block through collision with the stop block, and part of the energy is dissipated through damping of the material. The manner of securing the stop assembly is not limited.
As an alternative embodiment of the present application, optionally, a working clearance is left between the upper surface of the wheel body 7 and the upper stop 8, and between the lower surface of the wheel body 7 and the lower stop 9.
When the flywheel is at rest or in normal operation, a small gap is kept between the wheel body 7 and the stop block, that is, between the upper surface of the wheel body 7 and the upper stop block 8, and between the lower surface of the wheel body 7 and the lower stop block 9, and the distance of the gap can be set according to the design performance and requirements of a user and the flywheel.
As an optional embodiment of the present application, optionally, the method further includes:
the first shoulder is arranged on the inner side surface of the shell 6;
the second shoulder is arranged on the inner side surface of the base 1 and corresponds to the first shoulder up and down;
the upper stop block 8 is arranged on the first shoulder, and the lower stop block 9 is arranged on the second shoulder; and at least two pairs of upper stop blocks 8 and lower stop blocks 9 are uniformly arranged on the circumference.
As shown in fig. 2, in order to install the stopper assembly, shoulder structures for placing the stoppers are provided on the inner side surface of the housing 6 and the inner side surface of the base 1. The shoulder-lifts are fixedly arranged on the corresponding shoulder-lifts structure, and the fixed connection mode is not limited. For example, the upper stop 8 may be fixed to the first shoulder in an embedded manner. In this embodiment, the upper block 8 and the lower block 9 are disposed up and down to form a pair of block assemblies. In this embodiment, as shown in fig. 1, four pairs of stop blocks are uniformly arranged on the circumference of the stop block assembly.
By adopting the embodiment, the motor, the bearing assembly and the wheel body can form a whole mass, the whole mass is arranged on the vibration isolator assemblies through the bracket, the whole mass generates displacement in the vibration and impact environment, the flywheel utilizes the vibration isolators to attenuate the load transmitted from the base to the bearing, when the wheel body contacts the upper stop block and the lower stop block, the kinetic energy of the whole mass is converted into the elastic potential energy of the material to further reduce the load born by the bearing, and further the aim of reducing the requirement on the mechanical capacity of the bearing is fulfilled.
When the wheel body is static or works normally, a small gap is kept between the wheel body and the stop block, in a vibration environment, the wheel body collides with the stop block to convert kinetic energy into elastic potential energy of the stop block material, and other part of energy is dissipated through material damping; the requirement of the flywheel bearing assembly on the mechanical resistance can be reduced.
Example 2
Based on the satellite reaction flywheel provided in embodiment 1, this embodiment correspondingly provides an attitude control actuator for a spacecraft.
The second aspect of the application provides a spacecraft attitude control actuating mechanism, which comprises the satellite reaction flywheel module.
The function and connection relationship of the satellite reaction flywheel in the spacecraft attitude control actuating mechanism are described in detail in this embodiment. The attitude control actuating mechanism of the spacecraft comprises the satellite reaction flywheel, a control moment gyro, a magnetic torquer and the like, and is not detailed in detail.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A satellite reaction flywheel module, comprising:
the flywheel shell is used as a mounting shell of the satellite reaction flywheel module;
the vibration isolator component (2) is fixedly arranged inside the flywheel shell;
the bracket (3) is horizontally arranged and is fixed in the flywheel shell through the vibration isolator assembly (2);
the motor is fixedly arranged on the bracket (3);
the wheel body (7) is fixedly arranged on the motor, and the wheel body (7) is driven to rotate by the motor;
the stop block assembly is arranged in the flywheel shell and limits the axial displacement of the wheel body (7);
and the control assembly (10) is arranged in the flywheel shell and used for providing power and controlling the wheel body (7) to move.
2. The satellite reaction flywheel module of claim 1 wherein the flywheel housing comprises:
the base (1) is fixedly arranged on the fixing surface and used for transmitting the load applied from the outside;
the shell (6) is installed on the top of the base (1) in a matching mode;
the bottom plate (11) is installed at the bottom of the base (1) in a matching mode;
the control assembly (10) is horizontally and fixedly arranged on the bottom surface of the base (1).
3. A satellite reaction flywheel module as claimed in claim 2, characterized in that said support (3) comprises:
the mounting hole (3-01) is formed in the bracket (3);
the vibration isolator assembly (2) is matched to penetrate through the mounting hole (3-01) to fixedly mount the bracket (3) on the top surface of the base (1).
4. A satellite reaction flywheel module as claimed in claim 3, characterized in that said cradle (3) further comprises:
the spokes are uniformly arranged on the side surface of the bracket (3) in a horizontal mode;
the mounting holes (3-01) are formed in the spokes.
5. A satellite reaction flywheel module as claimed in claim 3, characterized in that said isolator assembly (2) comprises:
the lower vibration isolation block (2-04) is arranged on the upper surface of the base (1);
the upper vibration isolation block (2-03) is arranged on the upper surface of the bracket (3), and the lower end of the upper vibration isolation block is sequentially matched with and penetrates through the mounting hole (3-01) and the lower vibration isolation block (2-04);
the metal sleeve (2-02) is sequentially matched and penetrated into the upper vibration isolation block (2-03) and the lower vibration isolation block (2-04);
the locking bolt (2-01) penetrates the metal sleeve (2-02) and the base (1) in sequence, and the vibration isolator assembly (2) is fixed on the base (1) through the locking bolt (2-01).
6. The satellite reaction flywheel module of claim 2 wherein the motor comprises:
the bearing assembly (5) is vertically and fixedly arranged on the upper surface of the bracket (3); the wheel body (7) is matched and installed on the bearing assembly (5);
the stator (4-01) is coaxially arranged with the bearing assembly (5) and is vertically and fixedly arranged on the upper surface of the bracket (3);
the rotor (4-02) is coaxially arranged with the bearing assembly (5) and is vertically and fixedly arranged on the lower surface of the wheel body (7);
the stator (4-01) is coaxially arranged in the rotor (4-02), and the wheel body (7) is driven to rotate by the rotor (4-02) when the motor is started.
7. The satellite reaction flywheel module of claim 2 wherein the stop assembly comprises:
the upper stop block (8) is arranged on the inner side surface of the shell (6);
the lower stop block (9) is arranged on the inner side surface of the base (1) and corresponds to the upper stop block (8) up and down;
the edge of the wheel body (7) is positioned between the upper stop block (8) and the lower stop block (9).
8. A satellite reaction flywheel module as claimed in claim 7, characterized in that a working clearance is left between the upper surface of the wheel (7) and the upper stop (8), and between the lower surface of the wheel (7) and the lower stop (9).
9. The satellite reaction flywheel module of claim 7 further comprising:
the first shoulder is arranged on the inner side surface of the shell (6);
the second shoulder is arranged on the inner side surface of the base (1) and corresponds to the first shoulder up and down;
the upper stop block (8) is arranged on the first shoulder, and the lower stop block (9) is arranged on the second shoulder; and at least two pairs of upper stop blocks (8) and lower stop blocks (9) are uniformly arranged on the circumference.
10. A spacecraft attitude control actuator comprising a satellite reaction flywheel module as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221017204.2U CN217805340U (en) | 2022-04-28 | 2022-04-28 | Satellite reaction flywheel module and spacecraft attitude control actuating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221017204.2U CN217805340U (en) | 2022-04-28 | 2022-04-28 | Satellite reaction flywheel module and spacecraft attitude control actuating mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN217805340U true CN217805340U (en) | 2022-11-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221017204.2U Active CN217805340U (en) | 2022-04-28 | 2022-04-28 | Satellite reaction flywheel module and spacecraft attitude control actuating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217805340U (en) |
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2022
- 2022-04-28 CN CN202221017204.2U patent/CN217805340U/en active Active
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