CN102435182B - A kind of high speed rotor and use the control-moment gyro of this rotor - Google Patents
A kind of high speed rotor and use the control-moment gyro of this rotor Download PDFInfo
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- CN102435182B CN102435182B CN201210000872.9A CN201210000872A CN102435182B CN 102435182 B CN102435182 B CN 102435182B CN 201210000872 A CN201210000872 A CN 201210000872A CN 102435182 B CN102435182 B CN 102435182B
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Abstract
The present invention relates to a kind of high speed rotor and use the control-moment gyro of this rotor, high speed rotor comprises housing and is located at the wheel body in housing, wheel body with two angular contact ball bearings be oppositely arranged for support rotating is assemblied on housing, the axial outside of two angular contact ball bearings is respectively equipped with bearing gland, on wheel body, coaxial rotation is equipped with pull bar, two bearings gland is fixedly assemblied in the corresponding end of described pull bar and in the two and housing secure fit respectively, and another axis along wheel body coordinates with the activity of housing guiding; When the operating ambient temperature of control-moment gyro raises or declines, lead the gland that coordinates by the activity relative to housing to compensate the line expansion value difference between housing and wheel body with housing, thus can ensure two angular contact ball bearings preload stable, and then control-moment gyro can be made to be applicable in the relatively large working environment of temperature range, the problem that the temperature range that the high speed rotor solving existing control-moment gyro is suitable for is narrow.
Description
Technical field
The present invention relates to technical field of bearings, especially a kind of high speed rotor and use the control-moment gyro of this rotor.
Background technology
Control-moment gyro is widely used topworks in the attitude control system of space industry, and high speed rotor is the core rotary part of control-moment gyro.High speed rotor housing and the wheel body be located in housing, wherein wheel body is operationally assemblied on the housing of high speed rotor by pair of horns contact ball bearing as rotary support rotation, and preload by applying axial location by loaded ring and the bearing gland be fixedly assemblied on described housing to two angular contact ball bearings, thus ensure that the axle cording of high speed rotor has suitable rigidity, and then ensure the smooth operation of high speed rotor.Wherein said wheel body is due to needs operationally High Rotation Speed, and therefore its material requirements is comparatively strict, and this just makes the linear expansion coefficient of the housing of wheel body and high speed rotor produce difference.But, the working environment of high speed rotor generally has the temperature difference, this is then unavoidable makes wheel body and housing all produce to expand with heat and contract with cold, and due to the difference of material, line swell value between wheel body and housing is not etc., described bearing gland is again fixedly be assemblied on described housing, therefore in the course of work, from low temperature, normal temperature is to high temperature, different harmomegathus amounts between the wheel body caused by the change of temperature and housing change causing the preloading of bearing, cause fluctuation and the instability of bearing dynamic friction torque, be unfavorable for the normal work of bearing, the inefficacy of bearing can be caused time serious, thus cause the inefficacy of control-moment gyro high speed rotor and control-moment gyro, therefore the temperature range that current control-moment gyro is suitable for is narrower, then cannot be suitable in the environment that some temperature difference are larger.
Summary of the invention
The object of the present invention is to provide a kind of high speed rotor, the problem that the temperature range be suitable for the high speed rotor solving existing control-moment gyro is narrow; The present invention also aims to provide the control-moment gyro using above-mentioned high speed rotor simultaneously.
In order to solve the problem, high speed rotor of the present invention is by the following technical solutions: a kind of high speed rotor, comprise housing and be located at the wheel body in described housing, described wheel body is rotated by the sway brace being located at its axial both sides and is assemblied on described housing, described sway brace is coordinated with housing into rotation by corresponding angular contact ball bearing, the axial outside of two angular contact ball bearings is respectively equipped with the bearing gland holding out against its outer ring, on wheel body, concentric gap is equipped with pull bar, described two bearings gland is fixedly assemblied in the corresponding end of described pull bar and in the two and housing secure fit respectively, another coordinates with the activity of housing guiding along the axis of wheel body when pull bar expands with heat and contract with cold.
Described two bearings gland respectively with being interval with loaded ring and disk spring and being held out against the outer ring of corresponding angles contact ball bearing by corresponding loaded ring and disk spring of corresponding angular contact ball bearing.
Described two bearings gland is fixedly assemblied on pull bar respectively by the step surface and set nut being located at described pull bar corresponding end, the medial surface of bearing gland coordinates with the step surface of pull bar corresponding end is spacing, the lateral surface cooperation spacing with corresponding set nut of bearing gland.
Control-moment gyro of the present invention is by the following technical solutions: a kind of control-moment gyro, comprise housing and rotation and be assemblied in high speed rotor in described housing, described high speed rotor comprises housing and is located at the wheel body in described housing, described wheel body is rotated by the sway brace being located at its axial both sides and is assemblied on described housing, described sway brace is coordinated with housing into rotation by corresponding angular contact ball bearing, the axial outside of two angular contact ball bearings is respectively equipped with the bearing gland holding out against its outer ring, on wheel body, concentric gap is equipped with pull bar, described two bearings gland is fixedly assemblied in the corresponding end of described pull bar and in the two and housing secure fit respectively, another coordinates with the activity of housing guiding along the axis of wheel body when pull bar expands with heat and contract with cold.
Described two bearings gland respectively with being interval with loaded ring and disk spring and being held out against the outer ring of corresponding angles contact ball bearing by corresponding loaded ring and disk spring of corresponding angular contact ball bearing.
Described two bearings gland is fixedly assemblied on pull bar respectively by the step surface and set nut being located at described pull bar corresponding end, the medial surface of bearing gland coordinates with the step surface of pull bar corresponding end is spacing, the lateral surface cooperation spacing with corresponding set nut of bearing gland.
Be arranged in the pull bar two ends on wheel body and and housing secure fit in two bearings gland because its two bearings gland is fixedly assemblied in coaxial rotation by high speed rotor of the present invention respectively, another axis along wheel body coordinates with the activity of housing guiding; Therefore, when the operating ambient temperature of control-moment gyro raises or declines, lead the gland that coordinates by the activity relative to housing to compensate the line expansion value difference between housing and wheel body with housing, thus can ensure two angular contact ball bearings preload stable, and then control-moment gyro can be made to be applicable in the relatively large working environment of temperature range, the problem that the temperature range that the high speed rotor solving existing control-moment gyro is suitable for is narrow.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment 1 of high speed rotor;
Fig. 2 is the structural representation of the embodiment 1 of control-moment gyro;
Fig. 3 is the structural representation of the high speed rotor in Fig. 2.
Embodiment
The embodiment 1 of high speed rotor, as shown in Figure 1, there is housing 1, housing 1 is respectively fitted with bearing seat in relative both sides, diaxon bearing is made up of the urceolus 2-1 of Flange joint on housing and the coaxial core cylinder 2-2 be fixedly assemblied in urceolus 2-1 respectively, and the outer end of the core cylinder 2-2 of each bearing seat is all connected with the bolt that turns edge in its urceolus outer end, diaxon bearing is provided with bearing gland 3 respectively at outer end place, angular contact ball bearing 4 is had in mounted inside, two angular contact ball bearings 4 being positioned at diaxon bearing are oppositely arranged, the respective outer ring of two angular contact ball bearings 4 holds out against respectively by the loaded ring 5 be located between itself and corresponding bearing gland and disk spring 10, thus making that two angular contact bearings 4 have certain preload force separately, the size of this preload force regulates setting by the position of regulating shaft pressure cap 3, wheel body 6 is provided with in housing 1, wheel body 6 with two angular contact ball bearings 4 for support rotating is assemblied on housing 1, specifically, the axial both sides of wheel body 6 are respectively equipped with cylindrical support arm, wheel body 6, by the cooperation spin-ended with the inner ring of corresponding angular contact ball bearing of its sway brace, is provided with end ring 7 between the inner of angular contact ball bearing 4 and the sway brace of wheel body, wheel body 6 is coaxially equipped with pull bar 8, pull bar 8 passes the axial two ends of wheel body 6 and is rotatably assorted with wheel body 6, the two ends of pull bar 8 are each passed through corresponding bearing gland and are coordinated with the medial surface block of corresponding bearing gland by the step surface being located at its corresponding end, the two ends of pull bar 8 are equipped with external thread section, two bearings gland 3 is fixed on pull bar respectively by the set nut 9 of the correspondence of Screw assembly on the thread segment of pull bar, one in two bearings gland is fixedly assemblied on housing by corresponding bearing seat, another outer peripheral face is slidably matched along the axis of wheel body with the internal face of corresponding bearing seat, thus achieve this bearing gland and coordinate in wheel body guiding activity axially with housing.
In use procedure, when ambient temperature changes, wheel body and pull bar all expand with heat and contract with cold, due in described two bearings gland with between housing wheel body axially guiding activity coordinate, even if therefore case material is different from the thermal expansivity of wheel body and rod material, the line swell value of housing is different from the line swell value of wheel body and pull bar, activity is assemblied in bearing gland on housing also realizes the axial expansion amount to wheel body compensation by the activity of relative housing, thus keep the stable of the preload force on two angular contact ball bearings, the temperature range that the high speed rotor of control-moment gyro is suitable for is larger.
The embodiment 1 of control-moment gyro, as Figure 2-3, there is housing 101 and rotate the high speed rotor 102 be assemblied in housing 101, high speed rotor 102 has housing 11, housing 11 is respectively fitted with bearing seat in relative both sides, diaxon bearing is made up of the urceolus 12-1 of Flange joint on housing and the coaxial core cylinder 12-2 be fixedly assemblied in urceolus 12-1 respectively, and the outer end of the core cylinder 12-2 of each bearing seat is all connected with the bolt that turns edge in its urceolus outer end, diaxon bearing is provided with bearing gland 13 respectively at outer end place, angular contact ball bearing 14 is had in mounted inside, two angular contact ball bearings 14 being positioned at diaxon bearing are oppositely arranged, the respective outer ring of two angular contact ball bearings 14 holds out against respectively by the loaded ring 15 be located between itself and corresponding bearing gland and disk spring 110, thus making that two angular contact bearings 14 have certain preload force separately, the size of this preload force regulates setting by the position of regulating shaft pressure cap 13, wheel body 16 is provided with in housing 11, wheel body 16 with two angular contact ball bearings 14 for support rotating is assemblied on housing 11, specifically, the axial both sides of wheel body 16 are respectively equipped with cylindrical support arm, wheel body 16, by the cooperation spin-ended with the inner ring of corresponding angular contact ball bearing of its sway brace, is provided with end ring 17 between the inner of angular contact ball bearing 14 and the sway brace of wheel body, wheel body 16 is coaxially equipped with pull bar 18, pull bar 18 passes the axial two ends of wheel body 16 and is rotatably assorted with wheel body 16, the two ends of pull bar 18 are each passed through corresponding bearing gland and are coordinated with the medial surface block of corresponding bearing gland by the step surface being located at its corresponding end, the two ends of pull bar 18 are equipped with external thread section, two bearings gland 13 is fixed on pull bar respectively by the set nut 19 of the correspondence of Screw assembly on the thread segment of pull bar, one in two bearings gland is fixedly assemblied on housing by corresponding bearing seat, another outer peripheral face is slidably matched along the axis of wheel body with the internal face of corresponding bearing seat, thus achieve this bearing gland and coordinate in wheel body guiding activity axially with housing.
In use procedure, when ambient temperature changes, wheel body and pull bar all expand with heat and contract with cold, due in described two bearings gland with between housing wheel body axially guiding activity coordinate, even if therefore case material is different from the thermal expansivity of wheel body and rod material, the line swell value of housing is different from the line swell value of wheel body and pull bar, activity is assemblied in bearing gland on housing also realizes the axial expansion amount to wheel body compensation by the activity of relative housing, thus keep the stable of the preload force on two angular contact ball bearings, the temperature range that the high speed rotor of control-moment gyro is suitable for is larger.
Claims (6)
1. a high speed rotor, comprise housing and be located at the wheel body in described housing, described wheel body is rotated by the sway brace being located at its axial both sides and is assemblied on described housing, described sway brace is coordinated with housing into rotation by corresponding angular contact ball bearing, the axial outside of two angular contact ball bearings is respectively equipped with the bearing gland holding out against its outer ring, it is characterized in that, on wheel body, concentric gap is equipped with pull bar, described two bearings gland is fixedly assemblied in the corresponding end of described pull bar and in the two and housing secure fit respectively, another coordinates with the activity of housing guiding along the axis of wheel body when pull bar expands with heat and contract with cold.
2. high speed rotor according to claim 1, it is characterized in that, described two bearings gland respectively with being interval with loaded ring and disk spring and being held out against the outer ring of corresponding angles contact ball bearing by corresponding loaded ring and disk spring of corresponding angular contact ball bearing.
3. high speed rotor according to claim 1 and 2, it is characterized in that, described two bearings gland is fixedly assemblied on pull bar respectively by the step surface and set nut being located at described pull bar corresponding end, the medial surface of bearing gland coordinates with the step surface of pull bar corresponding end is spacing, the lateral surface cooperation spacing with corresponding set nut of bearing gland.
4. a control-moment gyro, comprise housing and rotation and be assemblied in high speed rotor in described housing, described high speed rotor comprises housing and is located at the wheel body in described housing, described wheel body is rotated by the sway brace being located at its axial both sides and is assemblied on described housing, described sway brace is coordinated with housing into rotation by corresponding angular contact ball bearing, the axial outside of two angular contact ball bearings is respectively equipped with the bearing gland holding out against its outer ring, it is characterized in that, on wheel body, concentric gap is equipped with pull bar, described two bearings gland is fixedly assemblied in the corresponding end of described pull bar and in the two and housing secure fit respectively, another coordinates with the activity of housing guiding along the axis of wheel body when pull bar expands with heat and contract with cold.
5. control-moment gyro according to claim 4, it is characterized in that, described two bearings gland respectively with being interval with loaded ring and disk spring and being held out against the outer ring of corresponding angles contact ball bearing by corresponding loaded ring and disk spring of corresponding angular contact ball bearing.
6. the control-moment gyro according to claim 4 or 5, it is characterized in that, described two bearings gland is fixedly assemblied on pull bar respectively by the step surface and set nut being located at described pull bar corresponding end, the medial surface of bearing gland coordinates with the step surface of pull bar corresponding end is spacing, the lateral surface cooperation spacing with corresponding set nut of bearing gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210000872.9A CN102435182B (en) | 2012-01-04 | 2012-01-04 | A kind of high speed rotor and use the control-moment gyro of this rotor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210000872.9A CN102435182B (en) | 2012-01-04 | 2012-01-04 | A kind of high speed rotor and use the control-moment gyro of this rotor |
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| CN102435182A CN102435182A (en) | 2012-05-02 |
| CN102435182B true CN102435182B (en) | 2015-10-21 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109883698B (en) * | 2017-12-05 | 2020-12-04 | 洛阳轴承研究所有限公司 | Method and device for measuring pre-tightening force of control moment gyro shafting and adjusting method |
| CN113212807B (en) * | 2021-03-31 | 2023-05-12 | 北京控制工程研究所 | Control moment gyro frame rotor assembly for micro-nano satellite |
| CN113212802B (en) * | 2021-03-31 | 2023-02-03 | 北京控制工程研究所 | Semi-gyro type miniature control moment gyro |
| CN113569349B (en) * | 2021-07-08 | 2023-10-24 | 中国科学院工程热物理研究所 | Analysis method for dynamic characteristics of pull rod rotor in consideration of temperature effect |
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Effective date of registration: 20180511 Address after: 471000 No. 1 axis research road, Jianxi science and Technology Industrial Park, Luoyang, Henan Patentee after: Luoyang Bearing Research Institute Address before: 471039 Fenghua Road 6, hi tech Development Zone, Luoyang, Henan. Patentee before: Zhouyan Science and Technology Co., Ltd., Luoyang |