CN115370730A

CN115370730A - Integrated rotating part

Info

Publication number: CN115370730A
Application number: CN202210951848.7A
Authority: CN
Inventors: 赵雁; 王雅梦; 戴天任; 谢鹏飞; 张振潮; 郑向凯; 景淯鹏; 柴灵芝
Original assignee: Luoyang Bearing Research Institute Co Ltd
Current assignee: Luoyang Bearing Research Institute Co Ltd
Priority date: 2022-08-09
Filing date: 2022-08-09
Publication date: 2022-11-22
Also published as: WO2024031781A1

Abstract

The invention relates to the technical field of rotary scanning, and aims to provide an integrated rotary component to solve the technical problems of heavier mass and larger volume of the rotary component caused by disordered structural arrangement of the rotary component in the prior art. The integrated rotating part comprises a bearing assembly, an angle resolving assembly, a motor assembly and a shell assembly, wherein the shell assembly is provided with a fixed disc; the bearing assembly comprises a central rotating shaft and a flange plate arranged at the left end of the central rotating shaft, the flange plate forms a movable plate rotating relative to a fixed plate, the fixed plate and the movable plate are arranged on the central axis at intervals left and right and are parallel to each other, and an installation space is formed between the fixed plate and the movable plate; the motor assembly comprises a motor stator and a motor rotor, the angle resolving assembly comprises a static part and a rotating part, the motor stator, the motor rotor, the static part and the rotating part are arranged in a stacking mode in the radial extending direction based on the central axis, the rotating part, the motor rotor and the movable disc are fixedly connected, and the static part, the motor stator and the fixed disc are fixedly connected.

Description

Integrated rotating part

Technical Field

The invention relates to the technical field of rotary scanning, in particular to an integrated rotary component.

Background

In the field of satellite, aerospace and other industries, a rotating component is used as a common connecting component and applied to various devices provided with scanners, for example, a rotating component which is assembled in a launching satellite and can drive a scanning lens to rotate, and the rotating component can drive the scanning lens connected to the rotating component to realize a multi-angle variable measurement state; the launching of the rocket or weapon equipment also needs to be equipped with a radar component capable of monitoring the real-time position and the launching state of the equipment such as the weapon, the rocket and the like after launching, the radar component also belongs to one type of scanner, a rotating part with higher precision is also arranged in the radar component, and a signal receiver and a receiving disc are connected and fixed on the rotating part, so that the capturing and the real-time monitoring of the equipment after launching are realized.

In the prior art, people are in order to obtain high accuracy, high reliability's scanning mechanism, not only will innovate the lens subassembly, rotating part's performance also needs continuous improvement and progress, chinese utility model patent with grant bulletin No. CN207008187U discloses a scanning mechanism for optical remote sensing instrument, the scanning mechanism that this patent mentions includes scanning lens subassembly and connects the rotating part on the scanning lens subassembly, wherein, rotating part includes the axle subassembly and the drive shaft subassembly that move about of putting in scanning lens subassembly left and right sides separately, it all connects through its own rotation semi-axis and lens subassembly transmission to move about axle subassembly and drive shaft subassembly, the drive shaft subassembly includes motor element and the rolling bearing of connecting on the rotation semi-axis and controlling the interval and arranging, the axle subassembly is including connecting on the rotation semi-axis and the angle of controlling the arrangement and resolving the subassembly, the angle resolves the subassembly for circle synchronous shaft subassembly inductor, drive the rotation of rotation semi-axis in the drive shaft through the motor, and then drive the cooperation of moving about the opposite side of drive shaft subassembly, make the synchronous inductor work of circle, realize the angle and the orientation switching of subassembly.

However, the scanning mechanism in the above patent has the internal moving shaft assembly and the driving shaft assembly which are separately arranged, and the internal components thereof are arranged at left and right intervals, so that the overall volume and size of the scanning mechanism are large, two sets of assemblies need to be respectively and fixedly installed on two sides of the lens assembly during installation, the installation process is complicated, and meanwhile, the position correspondence and the precision of the two sets of assemblies need to be ensured to meet the use requirements. Because the rotary half shaft in the two-shaft component is not directly connected in a transmission manner and is only fixedly matched with the lens component, the scanning mechanism has higher assembly difficulty, the situation that the driving shaft and the moving shaft cannot synchronously run easily occurs, and the internal structure of the scanning mechanism is more complex, so that the scanning mechanism is not suitable for satellite components with small calibers, small-size systems and light-weight requirements. According to the working principle and working condition requirements of the high-precision scanning and rotating mechanism, the rotating component is used for driving the scanning lens and other structures connected with the front end to rotate, and the orientation and the angle of the lens need to realize the key technical requirements of accurate positioning, rotary stopping, flexibility, long-term stability and the like. However, other rotating parts and scanning mechanisms in the prior art have the technical problems that the total mass of the rotating parts is heavy and the precision is reduced due to the large size and the disordered arrangement of the internal driving part and the rotating part, and the actual operation switching speed of the lens is low when the rotating parts operate due to the large size and the disordered arrangement of the internal driving part and the rotating part, so that the lubricating and sealing effects of the rotating parts are influenced, and the service life of the rotating parts is shortened.

Disclosure of Invention

The invention aims to provide an integrated rotating component to solve the technical problems of heavier mass and larger volume of the rotating component caused by disordered structural arrangement of the rotating component in the prior art.

In order to achieve the purpose, the technical scheme of the integrated rotating component provided by the invention is as follows:

an integrated rotating component comprises a bearing assembly, an angle resolving assembly and a motor assembly, and further comprises a shell assembly, wherein the shell assembly is provided with a fixed disc; the bearing assembly comprises a central rotating shaft capable of rotating relative to a fixed disc and a flange plate arranged at the left end of the central rotating shaft, the central axis of the central rotating shaft is defined to extend along the left-right direction, the flange plate forms a movable disc rotating relative to the fixed disc, the fixed disc and the movable disc are arranged on the central axis at intervals left and right and are parallel to each other, and an installation space for integrally assembling the bearing assembly, the angle resolving assembly and the motor assembly is formed between the fixed disc and the movable disc; the motor assembly comprises a motor stator and a motor rotor, the angle resolving assembly comprises a static part and a rotating part, the motor stator, the motor rotor, the static part and the rotating part are arranged in a stacking mode according to a set sequence in the radial extending direction based on the central axis, the rotating part, the motor rotor and the moving disk of the left end are fixedly connected, and the static part, the motor stator and the fixed disk of the right end are fixedly connected.

Has the advantages that: the motor assembly, the angle calculating assembly and the shell assembly are sequentially arranged, assembled and fixed at intervals in an outward-radiating laminated posture by taking the bearing assembly as a center, the motor rotor, the motor stator and the rotating part and the stationary part of the angle calculating assembly of the motor assembly are arranged in a laminated manner in the radial direction of the central rotating shaft, the radial extension directions of the assemblies are all positioned on the same plane, the assemblies are integrated into a laminated rotating part structure, and by arranging the laminated rotating part, the space utilization rate in the rotating part is greatly improved, the internal structure of the rotating part is assembled more compactly, the volume of the rotating part is reduced, the total weight of the rotating part is reduced, and the development requirements of miniaturization and light weight of equipment such as a satellite and the like in China are met. Compared with the rotating part in the prior art, which has the advantages of larger structure volume and heavier total mass due to disordered internal structure arrangement, and lower actual running speed during running, the rotating part in the invention has the advantages of compact structure after assembly, reduced mass, reduced rotating moment of the central rotating shaft, capability of controlling the rotating part to rotate rapidly, and reduced rotational inertia.

Preferably, the bearing assembly comprises a balance bearing fixed on the central rotating shaft, and the balance bearing comprises an inner ring fixed on the central rotating shaft and an outer ring fixedly connected with the fixed disc; the bearing assembly also comprises a bearing seat fixed on the outer ring of the balance bearing, and the bearing seat extends left and right and covers the outer ring of the bearing. The rotation stability of the central rotating shaft in the installation space is ensured through the balance bearing, the bearing seat covers and fixes the bearing outer ring, the contact area between the bearing outer ring and the outer end part is increased, and the outer ring of the balance bearing is conveniently connected and fixed with other parts.

Preferably, two balance bearings are arranged on the central rotating shaft at intervals, and both the two balance bearings are angular contact ball bearings; and the bearing seat fixes the outer rings of the two balance bearings. The two angular contact ball bearings are fixed at intervals, so that the adjustable angle and the rotation range of the central rotating shaft are both increased, the stability after the lens assembly is connected and arranged is facilitated, and the rotation range is enlarged.

Preferably, the bearing assembly further comprises an inner spacer ring and an outer spacer ring which are arranged between the two balance bearings, and a dynamic seal assembly arranged on the periphery of the central rotating shaft, wherein the dynamic seal assembly comprises a sealing gasket and a locking nut, and the sealing gasket and the locking nut are respectively arranged at the outer ends of the two balance bearings so as to dynamically seal the left end and the right end of the two bearings in a rotating fit manner with the central rotating shaft. The sealing gasket and the locking nut of the dynamic sealing assembly can ensure the sealing performance of the internal lubrication of the balance bearing, and prevent the lubricant filled on the bearing from flowing out through the rotation of the central rotating shaft.

Preferably, the dynamic seal assembly further comprises a gland arranged between the bearing seat and the central rotating shaft, the gland is fixedly connected with the bearing seat and is of a saw-toothed structure, and the gland extends to the outer end of the balance bearing so as to be matched with the sealing gasket and the locking nut in a labyrinth seal mode. The serrated gland can form a labyrinth matching sealing structure at the outer end of the bearing, so that the tightness effect of the dynamic seal is improved.

Preferably, the sealing fit position of the gland is provided with an anti-overflow coating. The anti-scattering coating further prevents the lubricant injected on the bearing from overflowing.

Preferably, the angle calculating assembly is arranged between the motor assembly and the bearing assembly, and the static part, the rotating part, the motor stator and the motor rotor are sequentially arranged from the periphery of the rotating shaft to the outside in the radial direction of the central rotating shaft. The angle calculating component is arranged between the motor assembly and the bearing assembly, so that the angle stage component is positioned between the output torque of the motor and the transmission position of the central rotating shaft, the measurement and calculation of the angle calculating component and the accuracy of the measurement result are facilitated, and the measurement error caused by the offset of the angle calculating component on one side is prevented.

Preferably, the central rotating shaft is of a hollow shaft structure, the flange plate is provided with a sinking groove, the sinking groove corresponds to a central hole of the central rotating shaft, and the sinking groove is used for being fixedly connected with the lens component. The hollow structure reduces the weight of the central rotating shaft, and is beneficial to reducing the weight and increasing the speed of the central rotating shaft.

Preferably, all be equipped with the bolt perforation on deciding dish and the movable disk, all wear to be equipped with fixing bolt in the bolt perforation, fixing bolt is used for with each connection structure that corresponds on movable disk and the deciding dish detachably fixed assembly. Wear to establish through fixing bolt and make each connection structure homoenergetic quick installation and dismantlement on price fixing and driving disk, do benefit to runner assembly's high-speed joint and arrange and subsequent dismantlement maintenance.

Preferably, the shell assembly comprises a sealing shell and an annular sealing plate, the sealing shell is of a cylindrical structure with an opening facing the left, a bottom plate of the sealing shell forms the fixed plate, the sealing shell is fixedly connected to the right end of the central rotating shaft, an inner cavity of the sealing shell and the flange plate enclose the installation space, the annular sealing plate is fixed to an opening at the left end of the sealing shell so that the installation space is closed, and a detachable sealing cover arranged facing the central rotating shaft is arranged on the sealing shell. The cylindrical sealing shell can coat each connecting component in the inner cavity to protect each connecting component, and the annular sealing plate can seal the cylinder opening of the sealing shell to ensure the sealing property of the installation space; the connection of bobbin base subassembly and the inside condition of observing sealed shell are convenient for in the setting of removable sealed lid.

Drawings

Fig. 1 is a schematic structural diagram of a connection between an integrated rotating component and a lens assembly according to embodiment 1 of the present invention;

FIG. 2 is a schematic view of the integrated rotating unit of FIG. 1;

fig. 3 is a left side view of the integrated rotating member of fig. 2.

Description of the reference numerals:

1. a bearing assembly; 2. an angle resolving component; 3. a motor assembly; 4. a housing assembly; 5. a lens assembly; 6. a central rotating shaft; 7. a flange plate; 8. sinking a groove; 9. fixing the bolt; 10. a balance bearing; 11. inner spacing rings; 12. an outer space ring; 13. a gasket; 14. locking the nut; 15. a gland; 16. a bearing seat; 17. pressing a ring; 18. a stationary member; 19. a rotating member; 20. a motor stator; 21. a motor rotor; 22. sealing the housing; 23. an annular seal plate; 24. a sealing cover; 25. an anti-spill coating; 26. and (5) installing space.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the language "comprising one of 8230; \8230;" etc. does not exclude a process, method or the like that comprises such an element.

In the description of the invention, unless expressly stated or limited otherwise, the terms "mounted", "connected" and "connected" when used in this context are to be construed broadly, as for example they may be fixedly connected, releasably connected or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be connected internally or indirectly to each other. The specific meanings of the above-mentioned terms in the present invention can be understood by those skilled in the art through specific situations.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meanings of the above-mentioned terms in the present invention can be understood by those skilled in the art through specific situations.

The present invention will be described in further detail with reference to examples.

The embodiment 1 of the integrated rotating part provided by the invention comprises the following components:

as shown in fig. 1 to fig. 3, the integrated rotating component is connected with the lens assembly 5 in use, so as to be able to be connected and arranged in application scenarios such as satellite, aerospace, etc., the integrated rotating component is a rotating component applied in a ground scanning mechanism in this embodiment, and the lens assembly 5 connected with the rotating component is a high-precision scanning lens assembly for the ground scanning mechanism.

As shown in fig. 1, the integrated rotating component includes a bearing assembly 1, an angle calculating assembly 2, a motor assembly 3, and a housing assembly 4, which are integrally assembled together, a lens assembly 5 is rotatably connected to the bearing assembly 1, and the lens assembly 5 and the rotating component in this embodiment are fixedly connected in the left-right direction, wherein the bearing assembly 1 is located at the center of the rotating component, the motor assembly 3 is fixed at intervals on the radial outer portion of the bearing assembly 1, the angle calculating assembly 2 is assembled in the interval between the bearing assembly 1 and the motor assembly 3, and the housing assembly 4 covers the fixed components to form the integrated rotating component in which the internal components are arranged in a stacked manner in the radial direction of the bearing assembly 1.

More specifically, as shown in fig. 1 and 2, the bearing assembly 1 includes a central rotating shaft 6 and a flange 7 provided at a left end of the central rotating shaft 6, a central axis of the central rotating shaft 6 extends in a left-right direction, the flange 7 constitutes a movable disk rotating with the central rotating shaft 6, the central rotating shaft 6 is assembled as a center of the whole integrated rotating component, and a left end surface of the flange 7 is used for fixedly connecting with the lens assembly 5. As shown in fig. 2, in order to reduce the weight of the central rotating shaft 6 and facilitate the connection of the lens assembly 5, the shaft body of the central rotating shaft 6 is of a hollow structure, a central through hole is formed in the center of the shaft body and penetrates through the shaft body from left to right and extends to the flange 7, a sinking groove 8 is formed in the left end face of the flange 7, the center of the sinking groove 8 is communicated with the through hole of the central rotating shaft 6, and the sinking groove 8 is used for fixedly assembling the lens assembly 5. The bearing assembly 1 further includes a balance bearing 10 fixed on the central rotating shaft 6, and the balance bearing 10 in this embodiment is an angular contact ball bearing, and the angular contact ball bearing connects the central rotating shaft 6 in the rotating component in an angle-adjustable manner.

As shown in fig. 2 and 3, the housing assembly 4 of the rotating member houses the central rotating shaft 6, the housing assembly 4 includes a cylindrical seal housing 22 opening to the left and an annular seal plate 23 provided at the radially outer end of the flange 7, the annular seal plate 23 is used for sealing the left end opening of the seal housing 22, a closed mounting space 26 for integrally assembling the bearing assembly 1, the angle resolver assembly 2 and the motor assembly 3 is defined by the surrounding of the flange 7, the annular seal plate 23 and the seal housing 22, and the mounting space 26 extends in a radial direction perpendicular to the central axis. The motor assembly 3 comprises a motor stator 20 and a motor rotor 21, the angle calculating assembly 2 comprises a static part 18 and a rotating part 19, and the motor stator 20, the motor rotor 21, the static part 18, the rotating part 19 and the balance bearing 10 are arranged in a stacking mode in a radial direction of the central axis in the installation space 26 according to a set sequence. As shown in fig. 2 and 3, the right end center of the sealing shell 22 is further provided with a detachable sealing cover 24 corresponding to the central rotating shaft 6, and when the sealing cover 24 is detached, the assembly of the components in the inner cavity of the sealing shell 22 is convenient to connect, assemble, overhaul and observe.

In this embodiment, the sealing housing 22 is fixed and stationary after being assembled outside the central rotating shaft 6, and the flange 7 rotates along with the central rotating shaft 6, so the right end cylindrical bottom plate of the sealing housing 22 constitutes a fixed plate, the flange 7 constitutes a movable plate rotating relative to the fixed plate, the fixed plate and the movable plate are arranged at left and right intervals on the central axis and are parallel to each other, the inner rings of the rotating part 19, the motor rotor 21 and the balance bearing 10 are fixedly connected with the movable plate at the left end, and the outer rings of the static part 18, the motor stator 20 and the balance bearing 10 are fixedly connected with the fixed plate at the right end.

As shown in fig. 2, two balance bearings 10 are provided, the two balance bearings 10 are angular contact ball bearings of the same type, the two balance bearings are arranged on the central rotating shaft 6 at intervals and are mounted back to back, the balance bearing 10 at the left end is arranged close to the flange 7 in an assembling manner, and the balance bearing 10 at the right end is arranged close to the cylinder bottom of the sealed shell 22. The bearing assembly 1 further includes a spacer ring disposed between the two balance bearings 10, a dynamic seal structure disposed outside the left and right ends of the two balance bearings 10, and a bearing seat 16 fixed radially outside the outer ring of the bearing and surrounding and fixing the two outer rings of the bearing. As shown in fig. 2, the spacer includes an inner spacer 11 fixed on the outer periphery of the central rotating shaft 6 and an outer spacer 12 spaced from the inner spacer 11, the inner spacer 11 is supported and fixed between the inner rings of the two balance bearings 10, the outer spacer 12 is supported and fixed between the outer rings of the two balance bearings 10, and the spacer ensures that the two balance bearings 10 are spaced from each other.

As shown in fig. 2, the dynamic seal assembly includes a seal gasket 13, a lock nut 14 and a gland 15, the seal gasket 13 and the lock nut 14 are respectively arranged at the left and right outer ends of the two balance bearings 10 to dynamically seal the left and right ends of the two bearings, the seal gasket 13 is fixedly arranged between the flange 7 and the balance bearing 10 at the left end, and the lock nut 14 is screwed and fixed at the right end of the central rotating shaft 6 to pre-tighten the bearings from the right side; the left end and the right end of the bearing seat 16 extend to the left end and the right end of the two bearings, one end of the gland 15 is fixed on the bearing seat 16, the other end of the gland 15 extends downwards and is in sealing fit with the sealing gasket 13 and the locking nut 14, wherein the gland 15 is of a saw-toothed structure, and sealing structures matched with the saw-toothed structure are arranged on the sealing gasket 13 and the locking nut 14, so that the gland 15 is in labyrinth sealing fit with the sealing gasket 13 and the locking nut 14. The gland 15 is fixedly matched with the bearing seat 16 through bolts, and a spill-proof coating 25 is further arranged on the labyrinth seal matching surface of the gland 15.

As shown in fig. 2, rotating member 19 and the stationary member 18 of angle calculating assembly 2 all belong to the component structure of accurate angle resolver, and the laminating of stationary member 18 is fixed in the periphery of bearing frame 16, and the right-hand member of stationary member 18 passes through fixing bolt 9 to be fixed on the price fixing, and for guaranteeing that the stationary member assembly is firm, the radial periphery of the left end of bearing frame 16 still is equipped with clamping ring 17, and clamping ring 17 and fixing bolt 9 cooperation are fixed with stationary member 18. The rotary member 19 is located radially outside the stationary member 18, the left end of the rotary member 19 is fixed to the movable plate by the fixing bolt 9 so as to rotate with the movable plate, and the stationary member 18 can be operated in cooperation with the rotary member 19 to calculate the rotation angle and the rotation orientation of the central rotary shaft 6 and the lens assembly 5 when the flange plate 7 rotates.

As shown in fig. 2, the motor stator 20 is disposed radially outside the rotary member 19, the motor rotor 21 is disposed radially outside the motor stator 20, and both the motor stator 20 and the motor rotor 21 are fixed to the corresponding disc bodies by the fixing bolts 9. In this embodiment, the rotation of the central rotating shaft 6 is driven by the motor assembly 3, the rotating component uses the central rotating shaft 6 as a center, and integrates the components together in a layer-by-layer coating manner, when the motor rotor 21 rotates relative to the motor stator 20, the movable disk synchronously rotates, and the central rotating shaft 6 drives the inner ring of the balance bearing 10 and the rotating element 19 on the movable disk to rotate. The rotatable part in this embodiment uses central pivot 6 as the center, arranges for balance bearing 10, bearing frame 16, static piece 18, rotating member 19, motor stator 20 and electric motor rotor 21 for the interval in proper order in the radial direction based on the central axis, and equal clearance fit of each subassembly, range upon range of arranging, all are equipped with the bolt perforation that supplies fixing bolt 9 to penetrate on movable disk and the fixed disk.

In the embodiment, the mixed lubrication mode of oil-containing retainer-lubricating oil-lubricating grease can be adopted in the angular contact bearing, the combined lubrication of the grease can greatly improve the abrasion and consumption conditions of the bearing under the working condition of low rotating speed operation for a long time, the long service life requirement of the product is realized, and the grease is effectively prevented from overflowing and scattering along the central rotating shaft 6 by adopting a dynamic sealing structure. The motor assembly 3 in this embodiment adopts a brushless dc motor to provide the bearing assembly 1 with the required steady torque, so as to drive the bearing assembly 1 to run smoothly. The precise angle resolver in the embodiment belongs to an absolute angular displacement sensor, can detect the scanning angle, position and speed of a lens in the operation process of a rotating part, and realizes the conversion between an angular displacement signal and an electric signal, thereby realizing the precise positioning of the scanning angle. During assembly, the locking nut 14 and the central rotating shaft 6 are screwed down by certain torque, and certain preload is applied to the bearing. In this embodiment, matching surfaces of the bearing seat 16 and the central rotating shaft 6 are subjected to fine grinding, and the gland 15, the lock nut 14, the inner spacer 11, the outer spacer 12 and the sealing gasket 13 are subjected to fine grinding, so that the part has high part size precision, and the assembly precision of the rotating part and the lens assembly 5 is ensured. In this embodiment, the housing assembly 4 is made of an aluminum material, so that the requirement of light weight of a product is met, the surfaces of the sealing shell 22, the sealing cover 24 and the annular sealing plate 23 are all subjected to surface treatment by conductive oxidation, so that the sealing and protecting effects on the internal motor assembly 3, the angle calculating assembly 2 and the bearing assembly 1 are achieved, and the effect of stabilizing resistance on the surface of the housing is achieved.

In the embodiment, the motor assembly 3, the angle calculating assembly 2 and the shell assembly 4 are sequentially arranged, assembled and fixed at intervals in an outward radiation lamination posture by taking the bearing assembly 1 as a center, the motor assembly 3 is wrapped and fixed on the radial outer side of the bearing assembly 1, the angle calculating assembly 2 is arranged in a gap between the motor assembly 3 and the bearing assembly 1, the shell assembly 4 covers the fixed bearing assembly 1 and the fixed motor assembly 3, the radial extension directions of all the assemblies are positioned on the same plane, all the assemblies are arranged in a lamination mode to form a rotating part structure, and through the laminated rotating part, the assembly structure in the rotating part is more compact, the volume of the rotating part is greatly reduced, the space utilization rate is improved, the total weight of the rotating part is reduced, and the development requirements of miniaturization and light weight of equipment such as satellites in China at present are met; compared with the rotating parts with lower actual running speed when the components such as the bearing and the rotating shaft run at the connecting position due to larger structure volume and heavier total mass in the prior art, the rotating parts in the embodiment can control the rotating parts to rotate quickly after being connected due to the reduction of the mass and the reduction of the moment, thereby reducing the rotating inertia, realizing the flexible suspension of the front end lens, realizing accurate positioning, being beneficial to the accurate control and the long-term use of the rotating parts, and solving the technical problems that the rotating parts have heavier mass and larger volume due to the disordered arrangement of the internal structure of the rotating parts in the prior art.

In this embodiment, the flange 7 is integrally disposed at the left end of the central rotating shaft 6, the flange 7 forms a movable disk, and the right end of the sealing housing 22 forms a fixed disk. Of course, in other embodiments, separate movable disk and fixed disk structures may be additionally disposed at the left and right ends of the central rotating shaft, for example, one end of the central rotating shaft rotates to penetrate the fixed disk, the central rotating shaft penetrates the fixed disk and can rotate relative to the fixed disk, the other end of the central rotating shaft is welded to the movable disk spaced from the fixed disk in parallel, the movable disk rotates along with the central rotating shaft, and the movable disk and the fixed disk radially enclose an installation space in the central axis.

Embodiment 2 of the integrated rotating part provided by the present invention:

the difference from embodiment 1 is that, in embodiment 1, the bearing assembly 1 includes the balance bearing 10 and the bearing housing 16 fixed on the bearing outer ring. In this embodiment 2, the bearing seat is eliminated, and the stationary member of the angle calculating assembly is directly and fixedly connected to the outer ring of the bearing or the retainer ring between the bearings. In other embodiments, the bearing seat may be replaced by an arc-shaped fixing plate, a connecting plate, or other connecting and fixing structure.

Embodiment 3 of the integrated rotating member provided by the present invention:

the difference from embodiment 1 is that in embodiment 1, two balance bearings 10 are arranged at intervals on the central rotating shaft 6, and both balance bearings 10 are angular contact ball bearings. In this embodiment 3, the balance bearing sets up more than two, for example is equipped with two balance bearing at the left end of central pivot, and the right-hand member is equipped with two balance bearing, totally four balance bearing cooperations use. In other embodiments, the balance bearing may also be a deep groove ball bearing.

Embodiment 4 of the integrated rotating part provided by the present invention:

the difference from embodiment 1 is that in embodiment 4, the fixing part of the balance bearing 10 in the bearing assembly 1 can be replaced, for example, the space ring is replaced by a retainer ring or a baffle ring, the outer ends of the two bearings can be provided with a sealing gasket or a locking nut, and the gland can be provided with an oil groove to facilitate lubrication and dynamic sealing.

Embodiment 5 of the integrated rotating part provided by the present invention:

the difference from embodiment 1 is that in embodiment 1, the parts fixed on the movable plate and the fixed plate are all completed by fixing bolts 9. In this embodiment 5, set up holding tank or fixed orifices on driving disk and the price fixing for parts such as confession rotating member, electric motor rotor inlay the dress and fix in the disk body that corresponds, can cancel fixing bolt and bolt hole this moment. In other embodiments, the movable plate and the fixed plate can be connected and fixed with the corresponding components in an adhesive manner.

Embodiment 6 of the integrated rotating member provided by the present invention:

the difference from the embodiment 1 is that, in the embodiment 1, the central rotating shaft 6 is a hollow shaft body structure, and the flange 7 is provided with a sink groove 8. In this embodiment 6, the central rotating shaft is a solid structure, the material of the central rotating shaft at this time may be made of a light material, the sink groove on the flange may be omitted, and the central rotating shaft and the lens assembly are connected and fixed by using a connecting member such as a clamp or a screw member.

Embodiment 7 of the integrated rotating part provided by the present invention:

the difference from embodiment 1 is that in embodiment 1, the housing assembly 4 includes a sealing shell 22 and an annular sealing plate 23 for sealing the left end opening of the sealing shell 22, and a detachable sealing cover 24 is provided on the sealing shell 22 facing the central rotating shaft 6. In this embodiment 7, the sealing case is a two-section separately-joined cylindrical case, and the two-section cylindrical case is joined to enclose each component. In other embodiments, the structural shape of the housing assembly may also be changed as long as each assembly is covered therein for protection, for example, the housing assembly is an integral cylindrical structure and is provided with an avoiding hole for the flange or the central rotating shaft to penetrate through.

Finally, it should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and not intended to limit the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and equivalents can be made to the technical solutions described in the foregoing embodiments without inventive effort, or some technical features thereof can be replaced with equivalents. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated rotating part comprises a bearing assembly (1), an angle resolving assembly (2) and a motor assembly (3), and is characterized by further comprising a shell assembly (4), wherein the shell assembly (4) is provided with a fixed disc; the bearing assembly (1) comprises a central rotating shaft (6) capable of rotating relative to a fixed disc and a flange plate (7) arranged at the left end of the central rotating shaft (6), a central axis of the central rotating shaft (6) is defined to extend along the left-right direction, the flange plate (7) forms a movable disc capable of rotating relative to the fixed disc, the fixed disc and the movable disc are arranged on the central axis at intervals left and right and are parallel to each other, and an installation space (26) for integrally assembling the bearing assembly (1), the angle calculating assembly (2) and the motor assembly (3) is formed between the fixed disc and the movable disc;

motor element (3) include motor stator (20) and electric motor rotor (21), and angle solution subassembly (2) are including static (18) and rotating member (19), and motor stator (20), electric motor rotor (21), static (18), rotating member (19) are based on the radial extending direction of the central axis and are range upon range of arranging according to the order of setting for, rotating member (19), electric motor rotor (21) and the driving disk fixed connection of left end, static (18), electric motor stator (20) and the price fixing fixed connection of right-hand member.

2. Integrated rotating component according to claim 1, wherein the bearing assembly (1) comprises a balance bearing (10) fixed to the central rotating shaft (6), the balance bearing (10) comprising an inner ring fixed to the central rotating shaft (6) and an outer ring for fixed connection to the stator disc; the bearing assembly (1) further comprises a bearing seat (16) fixed on the outer ring of the balance bearing (10), and the bearing seat (16) extends left and right and covers the outer ring of the bearing.

3. The integrated rotating component according to claim 2, wherein two balance bearings (10) are arranged on the central rotating shaft (6) at intervals, and both balance bearings (10) are angular contact ball bearings; and the bearing seat (16) fixes the outer rings of the two balance bearings (10).

4. The integrated rotating component according to claim 3, wherein the bearing assembly (1) further comprises an inner spacer ring (11) and an outer spacer ring (12) which are arranged between the two balance bearings (10) and a dynamic seal assembly which is arranged on the periphery of the central rotating shaft (6), the dynamic seal assembly comprises a sealing gasket (13) and a locking nut (14), and the sealing gasket (13) and the locking nut (14) are respectively arranged at the outer ends of the two balance bearings (10) so as to dynamically seal the rotating fit between the left end and the right end of the two bearings and the central rotating shaft (6).

5. The integrated rotating component according to claim 4, wherein the dynamic seal assembly further comprises a gland (15) arranged between the bearing seat (16) and the central rotating shaft (6), the gland (15) is fixedly connected with the bearing seat, the gland (15) is of a sawtooth structure, and the gland (15) extends to the outer end of the balance bearing (10) so as to be in labyrinth seal fit with the sealing gasket (13) and the locking nut (14).

6. Integrated rotating component according to claim 5, characterized in that the sealing engagement of the gland (15) is provided with a spill-proof coating (25).

7. The integrated rotating element according to any one of claims 1 to 6, wherein the angle resolver assembly (2) is disposed between the motor assembly (3) and the bearing assembly (1), and the stationary member (18), the rotating member (19), the motor stator (20) and the motor rotor (21) are sequentially arranged radially outward from the outer circumference of the central rotating shaft (6).

8. The integrated rotating component according to any one of claims 1 to 6, wherein the central rotating shaft (6) is a hollow shaft structure, the flange (7) is provided with a sunken groove (8), the sunken groove (8) corresponds to a central hole of the central rotating shaft (6), and the sunken groove (8) is used for fixedly connecting with the lens assembly (5).

9. The integrated rotating component according to claim 8, wherein the fixed plate and the movable plate are provided with bolt through holes, and fixing bolts (9) are respectively arranged in the bolt through holes, and the fixing bolts (9) are used for detachably and fixedly assembling the corresponding connecting structures of the movable plate and the fixed plate.

10. The integrated rotating component according to any one of claims 1 to 6, wherein the housing assembly (4) comprises a sealed housing (22) and an annular sealing plate (23), the sealed housing (22) is a cylindrical structure with an opening facing to the left, a bottom plate of the sealed housing (22) forms the fixed plate, the sealed housing (22) is used for being fixedly connected to the right end of the central rotating shaft (6), an inner cavity of the sealed housing and the flange plate (7) enclose the installation space (26), the annular sealing plate (23) is fixed at the opening of the left end of the sealed housing (22) to close the installation space (26), and the sealed housing (22) is provided with a detachable sealing cover (24) arranged facing to the central rotating shaft (6).