CN213594557U - Wire protection device of satellite reaction flywheel - Google Patents
Wire protection device of satellite reaction flywheel Download PDFInfo
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- CN213594557U CN213594557U CN202022095462.XU CN202022095462U CN213594557U CN 213594557 U CN213594557 U CN 213594557U CN 202022095462 U CN202022095462 U CN 202022095462U CN 213594557 U CN213594557 U CN 213594557U
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Abstract
A wire protection arrangement for a satellite reaction flywheel, the satellite reaction flywheel comprising: the device comprises a base (1), a support frame (2), a motor (3), a rotor (4), a shell cover (5), a control assembly (6) and a lead (7); the support frame (2) is arranged on the base, is an inverted U-shaped elastic support frame and is provided with a central hole; the motor (3) is fixedly arranged on the support frame and has a gap with the base, a motor shaft is inserted into the central hole, the rotor (4) is fixedly arranged on the motor shaft, and the motor drives the rotor to rotate; the shell cover (5) covers the support frame, and the lower end of the shell cover is fixed on the base; the control component (6) is arranged at the upper end of the shell cover and is connected with the motor through a lead (7) to control the rotating speed of the motor; the lead protection device of the satellite reaction flywheel is provided with a longitudinal through hole (8) on the shell cover, and a lead enters from the lower end of the longitudinal through hole after being connected with a motor, penetrates out from the upper end of the longitudinal through hole and then is connected with a control assembly.
Description
Technical Field
The utility model relates to a technical field of spacecraft control specifically relates to a wire protection device of satellite reaction flywheel.
Background
A reaction flywheel is an actuator used to control the attitude of a spacecraft, the spacecraft comprising: satellites, earth observation platforms, space vehicles, space telescopes, and the like. Because the attitude control actuator is used in an aircraft, the attitude control actuator is required to be small in size, light in weight, long in service life, low in power consumption and high in reliability.
In order to reduce the vibration and the overall weight of the reaction flywheel, and to make the reaction flywheel relatively simple to manufacture, the applicant developed and applied chinese patent application No. 2019205469305 entitled reaction flywheel, which comprises: the device comprises a base, a support frame, a motor, a rotor, a shell cover and a control assembly; a control assembly for controlling the rotational speed of the motor is positioned in the base; the support frame is arranged on the base, is an inverted U-shaped elastic support frame and is provided with a central hole; the motor is fixedly arranged on the support frame and has a gap with the base, a motor shaft is inserted into the central hole, the rotor is fixedly arranged on the motor shaft, and the motor drives the rotor to rotate; the shell cover is arranged outside the supporting frame and is installed on the base. However, because the control assembly is located within the base on which the support frame is mounted, the center of gravity of the reaction flywheel is relatively high, and may not be stable, particularly at high rotor speeds, thereby causing vibrations during rotation.
Therefore, through long-term thinking and repeated tests, the applicant develops a novel satellite reaction flywheel, and the control assembly is arranged above the support frame, so that the gravity center of the reaction flywheel can be reduced, the rotor rotates more stably, and vibration generated in the rotating process is reduced. However, new problems are also introduced: because control assembly installs the back in the support frame top, the connection of motor and control assembly just needs to be realized through the wire, if directly erect the wire between motor and control assembly, the wire is very damaged, causes the unable rotational speed of control assembly control motor to lead to the reaction flywheel product malfunctioning.
Disclosure of Invention
For overcoming the defects of the prior art, the to-be-solved technical problem of the utility model is to provide a wire protection device of satellite reaction flywheel, its wire that can protect the motor guarantees the rotational speed that control assembly can control the motor all the time to improve the reliability of reaction flywheel product.
The technical scheme of the utility model is that: the wire protection device for the satellite reaction flywheel comprises: the device comprises a base (1), a support frame (2), a motor (3), a rotor (4), a shell cover (5), a control assembly (6) and a lead (7); the support frame (2) is arranged on the base, is an inverted U-shaped elastic support frame and is provided with a central hole; the motor (3) is fixedly arranged on the support frame and has a gap with the base, a motor shaft is inserted into the central hole, the rotor (4) is fixedly arranged on the motor shaft, and the motor drives the rotor to rotate; the shell cover (5) covers the support frame, and the lower end of the shell cover is fixed on the base; the control component (6) is arranged at the upper end of the shell cover and is connected with the motor through a lead (7) to control the rotating speed of the motor;
the lead protection device of the satellite reaction flywheel is provided with a longitudinal through hole (8) on the shell cover, and a lead enters from the lower end of the longitudinal through hole after being connected with a motor, penetrates out from the upper end of the longitudinal through hole and then is connected with a control assembly.
The utility model discloses be equipped with vertical through-hole on the cap, the lower extreme from vertical through-hole gets into after the wire is connected the motor, wears out from the upper end of vertical through-hole, then links to each other with control assembly, consequently can protect the wire of motor, guarantees the rotational speed that control assembly can control the motor all the time to improve the reliability of reaction flywheel product.
Drawings
Fig. 1 shows a front view of a satellite reaction flywheel according to the invention.
Figure 2 shows a cross-sectional view B-B of the satellite reaction flywheel of figure 1.
Figure 3 shows a transverse cross-sectional view of the satellite reaction flywheel of figure 1.
Detailed Description
As shown in fig. 1-2, the wire protection device for a satellite reaction flywheel comprises: the device comprises a base 1, a support frame 2, a motor 3, a rotor 4, a shell cover 5, a control assembly 6 and a lead 7; the support frame 2 is arranged on the base, is an inverted U-shaped elastic support frame and is provided with a central hole; the motor 3 is fixedly arranged on the support frame and has a gap with the base, a motor shaft is inserted into the central hole, the rotor 4 is fixedly arranged on the motor shaft, and the motor drives the rotor to rotate; the shell cover 5 covers the support frame, and the lower end of the shell cover is fixed on the base; the control assembly 6 is arranged at the upper end of the shell cover and is connected with the motor through a lead 7 to control the rotating speed of the motor;
the lead protection device of the satellite reaction flywheel is provided with a longitudinal through hole 8 on the shell cover, and a lead enters from the lower end of the longitudinal through hole after being connected with a motor, penetrates out from the upper end of the longitudinal through hole and then is connected with a control assembly.
The utility model discloses be equipped with vertical through-hole on the cap, the lower extreme from vertical through-hole gets into after the wire is connected the motor, wears out from the upper end of vertical through-hole, then links to each other with control assembly, consequently can protect the wire of motor, guarantees the rotational speed that control assembly can control the motor all the time to improve the reliability of reaction flywheel product.
Of course, the base may also be provided with an outlet hole 12, the top of the housing cover may be provided with a wire inlet hole, and a wire may be led out from the outlet hole on the base, and then led into the wire inlet hole on the top of the housing cover after the housing cover is outside, and then connected to the control component. This also allows the wires to be routed when the control assembly is above the support frame, but the wires are exposed outside the reaction flywheel, which is relatively likely to cause damage.
Preferably, as shown in fig. 2 and 3, the longitudinal through hole 8 is formed in the inner side wall of the housing cover, and the cross section of the longitudinal through hole is rectangular. The design structure is simple, and the size of the rectangle can be designed according to the number of the wires.
Or, the longitudinal through hole 8 is arranged in the side wall of the shell cover, and the cross section of the longitudinal through hole is circular. The design is more suitable for the condition of a single wire, can limit the activity space of the wire to the maximum extent and better protect the wire.
Or, the longitudinal through hole 8 is arranged on the inner side wall of the shell cover, and the cross section of the longitudinal through hole is in a sector shape larger than 180 degrees. The design is more suitable for the condition of a single wire, and the hole opening is easier.
Furthermore, the base is provided with a groove for accommodating a lead, and the lower end of the longitudinal through hole is communicated with the groove. Therefore, the lead can be well protected and fixed when the lead is led out from the motor and does not reach the longitudinal through hole.
Preferably, the satellite reaction flywheel also comprises an electrical connector 9, mounted on the control assembly, which is electrically powered and in communication with the outside.
Preferably, the satellite reaction flywheel also includes a cover plate 10 which overlies the control assembly. This can prevent dust and the like from contaminating the control assembly.
Preferably, the cover plate has an inner recess and an outer periphery having a flange, and the upwardly protruding portion of the electrical connector is received in the inner recess of the cover plate. Therefore, the height of the reaction flywheel can be further reduced, the gravity center of a product is reduced, and the stable operation of the reaction flywheel is ensured.
Preferably, a tension plate 11 is mounted on the control assembly, which secures the wires. Through the line ball board, can make the wire of control assembly department fixed reliably, can not cause because of vibration etc. and swing out, damage the wire when serious, cause the rotational speed of the unable control motor of control assembly to lead to the reaction flywheel product malfunctioning.
The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention in any form, and all the technical matters of the present invention are to make any simple modification, equivalent change and modification to the above embodiments, and still belong to the protection scope of the present invention.
Claims (9)
1. A wire protection arrangement for a satellite reaction flywheel, the satellite reaction flywheel comprising: the device comprises a base (1), a support frame (2), a motor (3), a rotor (4), a shell cover (5), a control assembly (6) and a lead (7); the support frame (2) is arranged on the base, is an inverted U-shaped elastic support frame and is provided with a central hole; the motor (3) is fixedly arranged on the support frame and has a gap with the base, a motor shaft is inserted into the central hole, the rotor (4) is fixedly arranged on the motor shaft, and the motor drives the rotor to rotate; the shell cover (5) covers the support frame, and the lower end of the shell cover is fixed on the base; the control component (6) is arranged at the upper end of the shell cover and is connected with the motor through a lead (7) to control the rotating speed of the motor;
the method is characterized in that:
the lead protection device of the satellite reaction flywheel is provided with a longitudinal through hole (8) on the shell cover, and a lead enters from the lower end of the longitudinal through hole after being connected with a motor, penetrates out from the upper end of the longitudinal through hole and then is connected with a control assembly.
2. The cable protection device for a satellite reaction flywheel of claim 1, wherein: the longitudinal through hole (8) is formed in the inner side wall of the shell cover, and the cross section of the longitudinal through hole is rectangular.
3. The cable protection device for a satellite reaction flywheel of claim 1, wherein: the longitudinal through hole (8) is formed in the side wall of the shell cover, and the cross section of the longitudinal through hole is circular.
4. The cable protection device for a satellite reaction flywheel of claim 1, wherein: the longitudinal through hole (8) is formed in the inner side wall of the shell cover, and the cross section of the longitudinal through hole is in a sector shape larger than 180 degrees.
5. The lead protection device for a satellite reaction flywheel according to any one of claims 2 to 4, wherein: the base is provided with a groove for accommodating a lead, and the lower end of the longitudinal through hole is communicated with the groove.
6. The cable protection device for a satellite reaction flywheel of claim 1, wherein: the satellite reaction flywheel also comprises an electrical connector (9) mounted on the control assembly, which is electrically connected and in communication with the outside.
7. The cable protection device for a satellite reaction flywheel of claim 1, wherein: the satellite reaction flywheel also includes a cover plate (10) that overlies the control assembly.
8. The cable protection device for a satellite reaction flywheel of claim 7, wherein: the cover plate has an inner recess with a flange at the outer periphery thereof, and the upwardly protruding portion of the electrical connector is received in the inner recess of the cover plate.
9. The cable protection device for a satellite reaction flywheel of claim 1, wherein: a tension plate (11) is mounted on the control assembly and fixes the lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022095462.XU CN213594557U (en) | 2020-09-22 | 2020-09-22 | Wire protection device of satellite reaction flywheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022095462.XU CN213594557U (en) | 2020-09-22 | 2020-09-22 | Wire protection device of satellite reaction flywheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213594557U true CN213594557U (en) | 2021-07-02 |
Family
ID=76587906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022095462.XU Active CN213594557U (en) | 2020-09-22 | 2020-09-22 | Wire protection device of satellite reaction flywheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213594557U (en) |
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2020
- 2020-09-22 CN CN202022095462.XU patent/CN213594557U/en active Active
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