WO2024031781A1 - 一种集成式转动部件 - Google Patents

一种集成式转动部件 Download PDF

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Publication number
WO2024031781A1
WO2024031781A1 PCT/CN2022/119559 CN2022119559W WO2024031781A1 WO 2024031781 A1 WO2024031781 A1 WO 2024031781A1 CN 2022119559 W CN2022119559 W CN 2022119559W WO 2024031781 A1 WO2024031781 A1 WO 2024031781A1
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WO
WIPO (PCT)
Prior art keywords
assembly
bearing
component
rotating shaft
sealing
Prior art date
Application number
PCT/CN2022/119559
Other languages
English (en)
French (fr)
Inventor
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
洛阳轴承研究所有限公司
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Filing date
Publication date
Application filed by 洛阳轴承研究所有限公司 filed Critical 洛阳轴承研究所有限公司
Publication of WO2024031781A1 publication Critical patent/WO2024031781A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/21—Devices for sensing speed or position, or actuated thereby
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
    • H02K5/1732—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at both ends of the rotor

Definitions

  • the invention relates to the technical field of rotation scanning, and in particular to an integrated rotating component.
  • rotating parts are commonly used as connecting components and are used in a variety of equipment equipped with scanners.
  • rotating parts installed in launching satellites can drive the rotation of the scanning lens.
  • the rotating parts can drive the rotation of the scanning lens.
  • the scanning lens connected to it realizes the measurement state of multi-angle changes; the launch of rockets or weapon equipment also requires a radar component that can monitor the real-time position and launch status of weapons, rockets and other equipment after launch.
  • Radar components are also a type of scanner.
  • the radar assembly is also equipped with high-precision rotating parts.
  • the rotating parts are connected to the fixed signal receiver and the receiving plate to realize the capture and real-time monitoring of the equipment after launch.
  • the Chinese utility model patent with the authorization announcement number CN207008187U has been disclosed.
  • a scanning mechanism for an optical remote sensing instrument includes a scanning lens assembly and a rotating component connected to the scanning lens assembly.
  • the rotating component includes movable components located on the left and right sides of the scanning lens assembly.
  • the shaft assembly and the drive shaft assembly, the free shaft assembly and the drive shaft assembly are all transmission connected through their respective rotating half shafts and lens assemblies.
  • the driving shaft assembly includes motor assemblies and rotating bearings that are connected to the rotating half shaft and are spaced left and right.
  • the traveling shaft assembly includes a rotating bearing connected to the rotating half shaft and arranged left and right and an angle resolution assembly.
  • the angle resolution assembly is a circular synchronous sensor, which drives the rotating half shaft in the drive shaft assembly to rotate through the motor, thereby driving The lens assembly rotates, and then cooperates with the traveling shaft assembly on the other side opposite the drive shaft assembly to make the circular synchronization sensor work, realizing the angle and orientation switching of the lens assembly.
  • the scanning mechanism in the above-mentioned patent has a separate internal traveling shaft assembly and a driving shaft assembly, and its internal components are arranged at intervals on the left and right, resulting in a large overall volume and size of the scanning mechanism, and the lens assembly needs to be installed during installation.
  • Two sets of components are fixedly installed on both sides of the device. The installation process is relatively cumbersome. At the same time, it is also necessary to ensure that the positions of the two sets of components correspond and the accuracy meets the usage requirements.
  • the rotating half-shafts in the two-axis assembly have no direct transmission connection and are only fixedly matched with the lens assembly, the assembly of the scanning mechanism is difficult, and it is easy for the drive shaft and the traveling shaft to fail to operate synchronously, and its The internal structure is relatively complex, so the scanning mechanism is not suitable for satellite components with small diameter, small size systems and lightweight requirements. It can be seen from the working principle and working conditions requirements of high-precision scanning and rotating mechanisms that the rotating components are used to drive the front-end connected scanning lens and other structures to rotate.
  • the orientation and angle of the lens need to achieve key technologies such as precise positioning, flexible rotation and stop, and long-term stability. need.
  • the purpose of the present invention is to provide an integrated rotating component to solve the technical problem in the prior art that the rotating component structure is arranged in a messy manner, resulting in the rotating component being heavier and larger in volume.
  • An integrated rotating component includes a bearing component, an angle resolution component and a motor component.
  • the rotating component also includes a housing component.
  • the housing component has a fixed plate;
  • the bearing component includes a central rotating shaft that can rotate relative to the fixed plate and a device.
  • the flange plate at the left end of the central rotating shaft defines the central axis of the central rotating shaft extending in the left and right directions.
  • the flange plate constitutes a moving plate that rotates relative to the fixed plate.
  • the fixed plate and the moving plate are spaced left and right on the central axis.
  • the motor assembly includes a motor stator and a motor rotor
  • the angle resolution assembly includes a stationary component and the rotating part.
  • the motor stator, the motor rotor, the stationary part, and the rotating part are arranged in a stacked manner in a set order in the radial extension direction based on the central axis.
  • the rotating part, the motor rotor is fixedly connected to the moving plate at the left end, and the The stationary part, the motor stator and the fixing plate on the right end are fixedly connected.
  • the motor assembly, the angle resolution assembly and the housing assembly are all arranged and assembled at intervals with the bearing assembly as the center in a stacked posture radiating outwards.
  • the motor rotor, motor stator and angle resolution assembly of the motor assembly are assembled and fixed.
  • the rotating parts and stationary parts are stacked in the radial direction of the central rotating shaft, and the radial extension directions of each component are on the same plane.
  • Each component is integrated into a stacked rotating component structure.
  • the rotating parts in the present invention have a compact structure and reduced mass after assembly. The rotational torque of the central rotating shaft is reduced, which can control the rapid rotation of rotating parts and reduce the moment of inertia.
  • the lens assembly When the lens assembly is connected to the moving plate, it can achieve flexible hovering and precise positioning of the lens assembly, which is conducive to precise control of rotating parts and long-term
  • the use solves the technical problem in the prior art that the internal structure of the rotating part is arranged in a disorderly manner, resulting in the rotating part being heavier and larger in volume.
  • the bearing assembly includes a balance bearing fixed on the central rotating shaft.
  • the balance bearing includes an inner ring fixed on the central rotating shaft and an outer ring for fixed connection with the fixed plate; the bearing assembly also includes an outer ring fixed on the balance bearing.
  • 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 by the balancing bearing.
  • the bearing seat covers and fixes the bearing outer ring, which increases the contact area between the bearing outer ring and the outer end components and facilitates the connection between the outer ring of the balancing bearing and other components. fixed.
  • both balance bearings are angular contact ball bearings; the bearing seat fixes the outer rings of the two balance bearings.
  • the fixed intervals between the two angular contact ball bearings increase the adjustable angle and rotation range of the central rotating shaft, which is beneficial to the stability of the lens assembly after connection and arrangement, and expands the rotation range.
  • the bearing assembly also includes an inner spacer ring and an outer spacer ring located between the two balance bearings and a dynamic sealing assembly located on the periphery of the central rotating shaft.
  • the dynamic sealing assembly includes a sealing gasket and a locking nut, and the sealing gasket and lock nut are included. Tightening nuts are respectively provided at the outer ends of the two balance bearings to dynamically seal the rotation between the left and right ends of the two bearings and the central rotating shaft.
  • the sealing gasket and locking nut of the dynamic seal assembly can ensure the sealing of the internal lubrication of the balanced bearing and prevent the lubricant added to the bearing from flowing out through the rotation of the central shaft.
  • the dynamic seal assembly further includes a gland disposed between the bearing seat and the central rotating shaft.
  • the gland is fixedly connected to the bearing seat.
  • the gland has a zigzag structure and extends to the outer end of the balance bearing to connect with the bearing seat.
  • the sealing gasket and locking nut form a labyrinth sealing fit.
  • the serrated gland can form a labyrinth-shaped matching sealing structure at the outer end of the bearing to improve the tightness of the dynamic seal.
  • the sealing fit of the gland is provided with an anti-spill coating.
  • the anti-spill coating further prevents the lubricant added to the bearing from spilling out.
  • the angle-resolving component is provided between the motor component and the bearing component, and the stationary parts, rotating parts, motor stator, and motor rotor are arranged in sequence from the outer circumference of the rotating shaft outward in the radial direction of the central rotating shaft.
  • the angle resolution component is arranged between the motor component and the bearing component, so that the angle resolution component is located between the output torque of the motor and the transmission position of the central rotating shaft, which is beneficial to the calculation of the angle resolution component and the accuracy of the measurement results, and prevents the angle resolution component from being Calculate the component offset to cause measurement error on one side.
  • the central rotating shaft has a hollow shaft structure, and the flange is provided with a sinking groove corresponding to the center hole of the central rotating shaft, and the sinking groove is used to be fixedly connected to the lens assembly.
  • the hollow structure reduces the weight of the central rotating shaft, which is beneficial to the weight reduction and speed increase of the central rotating shaft.
  • the fixed plate and the moving plate are both provided with bolt holes, and the bolt holes are provided with fixing bolts.
  • the fixing bolts are used to detachably fix and assemble the corresponding connection structures on the moving plate and the fixed plate. Through the insertion of fixing bolts, each connection structure can be quickly installed and disassembled on both the fixed plate and the moving plate, which is beneficial to the quick connection arrangement and subsequent disassembly and maintenance of the rotating components.
  • the housing assembly includes a sealing housing and an annular sealing plate.
  • the sealing housing is a cylindrical structure with an opening facing left.
  • the bottom plate of the cylinder of the sealing housing constitutes the fixed plate.
  • the sealing housing is used to be fixedly connected to the right end of the central rotating shaft.
  • the inner cavity and the flange of the sealing shell surround the installation space, and the annular sealing plate is fixed at the left end opening of the sealing shell to close the installation space.
  • the sealing shell is provided with a removable sealing cover arranged toward the central rotating shaft. .
  • the cylindrical sealing shell can cover each connecting component in the inner cavity to protect each connecting component.
  • the annular sealing plate can seal the mouth of the sealing shell to ensure the sealing of the installation space; the detachable sealing cover is convenient for setting Connect the bottom assembly and observe the inside of the sealed housing.
  • Figure 1 is a schematic structural diagram of the connection between the integrated rotating component and the lens assembly in Embodiment 1 provided by the present invention
  • Figure 2 is a schematic structural diagram of the integrated rotating component in Figure 1;
  • Figure 3 is a left side view of the integrated rotating component in Figure 2.
  • connection In the description of the present invention, unless otherwise explicitly stipulated and limited, the terms “installation”, “connection” and “connection” that may appear should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. Or integrally connected; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between the two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.
  • the term "is provided with” that may appear should be understood in a broad sense.
  • the object of "is provided with” can be a part of the ontology, or it can be It is arranged separately from the body and connected to the body.
  • the connection can be a detachable connection or a non-detachable connection.
  • the specific meanings of the above terms in the present invention can be understood through specific situations.
  • the integrated rotating component is connected to the lens assembly 5 when in use, so that it can be connected and arranged in application scenarios such as satellites and aerospace.
  • the integrated rotating component is used in ground-to-ground applications.
  • the rotating component in the scanning mechanism and the lens assembly 5 connected to the rotating component are high-precision scanning lens components for the ground scanning mechanism.
  • the integrated rotating component includes a bearing assembly 1, an angle resolution assembly 2, a motor assembly 3 and a housing assembly 4 that are integrated and assembled together.
  • the bearing assembly 1 is rotatably connected to a lens assembly 5, which defines this embodiment.
  • the lens assembly 5 and the rotating part are fixedly connected in the left and right directions.
  • the bearing assembly 1 is located at the center of the rotating part.
  • the radially outer laminated fixed motor assembly 3 of the bearing assembly 1 is mounted on the bearing assembly 1.
  • the angle resolution assembly 2 is assembled on the bearing assembly 1.
  • the housing assembly 4 covers the outside of each fixed assembly, forming an integrated rotating component in which the internal components are stacked in the radial direction of the bearing assembly 1.
  • the bearing assembly 1 includes a central rotating shaft 6 and a flange 7 located at the left end of the central rotating shaft 6.
  • the central axis of the central rotating shaft 6 extends along the left and right directions, and the flange 7 constitutes The moving plate rotates with the central rotating shaft 6.
  • the central rotating shaft 6 serves as the center of the entire integrated rotating component for connection and assembly.
  • the left end surface of the flange 7 is used for fixed connection with the lens assembly 5.
  • the shaft body of the central rotating shaft 6 is a hollow structure, and its central perforation penetrates left and right and extends to the flange 7.
  • the bearing assembly 1 also includes a balance bearing 10 fixed on the central rotating shaft 6.
  • the balance bearing 10 in this embodiment is an angular contact ball bearing.
  • the angular contact ball bearing connects the central rotating shaft 6 to the rotating component in an angle-adjustable manner. .
  • the housing assembly 4 of the rotating component covers the central rotating shaft 6.
  • the housing assembly 4 includes a cylindrical sealing housing 22 with an opening facing left and a radial outer end of the flange 7.
  • the annular sealing plate 23 is used to seal the left end opening of the sealing shell 22. It is surrounded by the flange 7 - the annular sealing plate 23 - the sealing shell 22 to form an integrated assembly for the bearing assembly. 1.
  • Angle solution Considering the enclosed installation space 26 of the assembly 2 and the motor assembly 3, the installation space 26 extends in the radial direction perpendicular to the central axis.
  • the motor component 3 includes a motor stator 20 and a motor rotor 21.
  • the angle resolution component 2 includes a stationary part 18 and a rotating part 19.
  • the motor stator 20, the motor rotor 21, the stationary part 18, the rotating part 19 and the balance bearing 10 are all installed.
  • the space 26 is stacked in a set order based on the radial direction of the central axis.
  • the center of the right end of the sealing housing 22 is also provided with a detachable sealing cover 24 corresponding to the central rotating shaft 6. When the sealing cover 24 is removed, it is convenient to connect and assemble the components in the inner cavity of the sealing housing 22. Maintenance observation.
  • the sealing housing 22 remains stationary after being assembled and fixed outside the central rotating shaft 6, and the flange 7 rotates with the central rotating shaft 6. Therefore, the bottom plate of the right end cylinder of the sealing housing 22 constitutes a fixed plate, and the flange 7 It constitutes a moving plate that rotates relative to the fixed plate.
  • the fixed plate and the moving plate are spaced left and right on the central axis and parallel to each other.
  • the inner ring of the rotating part 19, the motor rotor 21 and the balance bearing 10 is fixedly connected to the moving plate at the left end.
  • the stationary part 18, the motor stator 20 and the outer ring of the balance bearing 10 are fixedly connected to the fixed plate at the right end.
  • the two balance bearings 10 are angular contact ball bearings of the same model.
  • the two balance bearings are spaced apart on the central rotating shaft 6 and installed back to back.
  • the balance bearing 10 at the left end is close to the flange.
  • the disk 7 is assembled and arranged, and the balance bearing 10 at the right end is arranged close to the bottom of the sealed housing 22.
  • the bearing assembly 1 also includes a spacer ring located between the two balance bearings 10, a dynamic sealing structure located outside the left and right ends of the two balance bearings 10, and a radially outer ring fixed on the outer ring of the bearing, surrounding the outer rings of the two bearings.
  • Fixed bearing housing 16 is angular contact ball bearings of the same model.
  • the two balance bearings are spaced apart on the central rotating shaft 6 and installed back to back.
  • the balance bearing 10 at the left end is close to the flange.
  • the disk 7 is assembled and arranged, and the balance bearing 10 at the right end is arranged close to the bottom of the sealed housing
  • the spacer ring includes an inner spacer ring 11 fixed on the outer circumference of the central rotating shaft 6 and an outer spacer ring 12 spaced apart from the inner spacer ring 11.
  • the inner spacer ring 11 is supported and fixed on the inner rings of the two balance bearings 10.
  • the outer spacer ring 12 is supported and fixed between the outer rings of the two balance bearings 10, and the spacer ring ensures that the two balance bearings 10 are spaced apart from each other.
  • the dynamic seal assembly includes a sealing gasket 13, a locking nut 14 and a gland 15.
  • the sealing gasket 13 and the locking nut 14 are respectively located at the left and right outer ends of the two balance bearings 10 to connect the left and right sides of the two bearings. Both ends are dynamically sealed.
  • the sealing gasket 13 is fixed between the flange 7 and the balance bearing 10 at the left end.
  • the locking nut 14 is screwed and fixed on the right end of the central shaft 6 to pre-tighten the bearing from the right side; the bearing seat 16
  • the left and right ends extend to the left and right outer ends of the two bearings.
  • One end of the gland 15 is fixed on the bearing seat 16, and the other end extends downward and seals with the sealing gasket 13 and the locking nut 14.
  • the gland 15 is serrated. structure, the sealing gasket 13 and the locking nut 14 are both provided with sealing structures that match the zigzag structure, so that the gland 15, the sealing gasket 13, and the locking nut 14 form a labyrinth-shaped sealing fit.
  • the gland 15 and the bearing seat 16 are fixedly matched by bolts, and the labyrinth-shaped sealing mating surface of the gland 15 is also provided with an anti-spill coating 25.
  • the rotating part 19 and the stationary part 18 of the angle resolver assembly 2 both belong to the structure of the precision angle resolver.
  • the stationary part 18 is fixed on the outer periphery of the bearing seat 16, and the right end of the stationary part 18 is fixed by a fixing bolt. 9 is fixed on the fixed plate.
  • a pressure ring 17 is also provided on the radial outer circumference of the left end of the bearing seat 16.
  • the pressure ring 17 and the fixing bolt 9 cooperate to fix the stationary part 18.
  • the rotating part 19 is located radially outside the stationary part 18.
  • the left end of the rotating part 19 is fixed on the moving plate through the fixing bolt 9 so as to follow the rotating plate.
  • the stationary part 18 can be calculated in cooperation with the rotating rotating part 19, so that the flange plate 7 calculates the rotation angle and rotation orientation of the central axis 6 and the lens assembly 5 when rotating.
  • the motor stator 20 is located on the radial outside of the rotating member 19, and the motor rotor 21 is located on the radial outside of the motor stator 20. Both the motor stator 20 and the motor rotor 21 are fixed to the corresponding disk through fixing bolts 9. superior.
  • the rotation of the central rotating shaft 6 is driven by the motor component 3.
  • the rotating components are centered on the central rotating shaft 6 and are integrated into each component in a layer-by-layer coating manner.
  • the rotating components in this embodiment are centered on the central rotating shaft 6 and are arranged at intervals in the radial direction based on the central axis as a balance bearing 10 , a bearing seat 16 , a stationary part 18 , a rotating part 19 , a motor stator 20 and a motor rotor 21 , each component has a clearance fit and is arranged in a stack, and the moving plate and the fixed plate are provided with bolt holes for the fixing bolts 9 to penetrate.
  • a mixed lubrication method of oil-containing cage-lubricating oil-grease can be used inside the angular contact bearing.
  • Such combined grease lubrication can greatly improve the wear and consumption of the bearing under low-speed operation conditions for many years.
  • a dynamic sealing structure is adopted to effectively prevent grease from spilling along the central rotating shaft 6.
  • the motor assembly 3 in this embodiment uses a brushless DC motor to provide the bearing assembly 1 with the stable torque it requires and drive the bearing assembly 1 to run smoothly.
  • the precision angle solver in this embodiment is a type of absolute angular displacement sensor. It can detect the scanning angle, position and speed of the lens during the operation of the rotating parts, and realize the connection between the angular displacement signal and the electrical signal.
  • the mating surfaces of the bearing seat 16 and the central rotating shaft 6 are precision ground, while the gland 15, locking nut 14, inner spacer 11, outer spacer 12 and sealing gasket 13 are all precision ground. , so that the parts have high dimensional accuracy and ensure the assembly accuracy of the rotating parts and the lens assembly 5.
  • the housing component 4 is made of aluminum material to meet the demand for lightweight products.
  • the surfaces of the sealing housing 22, the sealing cover 24, and the annular sealing plate 23 all adopt a conductive oxidation surface treatment method to treat the internal motor components. 3.
  • the angle resolution component 2 and the bearing component 1 play a role in sealing and protection, and achieve the function of stabilizing resistance on the surface of the shell.
  • the motor component 3, the angle calculation component 2 and the housing component 4 are all arranged and assembled and fixed at intervals with the bearing component 1 as the center in a stacked posture radiating outwards.
  • the motor component 3 is wrapped and fixed on the bearing component 1
  • an angle resolution component 2 is provided in the gap between the motor component 3 and the bearing component 1.
  • the housing component 4 covers the outside of the fixed bearing component 1 and motor component 3. The radial extension of each component The directions are all on the same plane, and each component is arranged in a stack and integrated into a rotating component structure. Through this stacked rotating component, the component structure inside the rotating component is made more compact, which greatly reduces the volume of the rotating component and increases the space.
  • the utilization rate reduces the total weight of rotating parts, which is in line with the current development requirements for miniaturization and lightweighting of domestic satellite and other equipment; compared with the existing technology, the structural volume is larger and the total mass is heavier, resulting in components such as bearings and rotating shafts.
  • the actual operating speed of the rotating component is relatively low during operation. Due to the reduced mass and reduced torque of the rotating component in this embodiment after connection, the rotating component can be controlled to rotate rapidly, reducing the moment of inertia, and enabling the front lens to hover flexibly. Precise positioning is beneficial to the precise control and long-term use of rotating parts, and solves the technical problem in the prior art that the internal structure of the rotating parts is arranged in a messy manner, resulting in the rotating parts being heavier and larger in size.
  • the flange plate 7 is integrally provided at the left end of the central rotating shaft 6.
  • the flange plate 7 constitutes the moving plate
  • the bottom plate of the right end cylinder of the sealed housing 22 constitutes the fixed plate.
  • separate moving plate and fixed plate structures can be additionally provided at the left and right ends of the central rotating shaft.
  • one end of the central rotating shaft can rotate through the fixed plate, and the central rotating shaft passes through the fixed plate and can rotate relative to the fixed plate.
  • the other end of the central rotating shaft is welded with a moving plate spaced parallel to the fixed plate.
  • the moving plate rotates following the central rotating shaft.
  • the moving plate and the fixed plate form an installation space in the radial direction of the central axis.
  • the bearing assembly 1 includes a balance bearing 10 and a bearing seat 16 fixed on the outer ring of the bearing.
  • the bearing seat is eliminated, and the stationary part of the angle resolution assembly is directly fixedly connected to the bearing outer ring or the retaining ring between the bearings.
  • the bearing seat can also be replaced by an arc-shaped fixing plate, a connecting plate or other connecting and fixing structures.
  • Embodiment 1 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, more than two balance bearings are provided. For example, two balance bearings are provided at the left end of the central rotating shaft, and two balance bearings are provided at the right end. A total of four balance bearings are used together. In other embodiments, the balance bearing may also be a deep groove ball bearing.
  • Embodiment 4 The difference from Embodiment 1 is that in this Embodiment 4, the fixing parts of the balance bearing 10 in the bearing assembly 1 can be replaced, for example, the spacer ring can be replaced with a retaining ring or a retaining ring, or the outer ends of the two bearings can be replaced. They are all equipped with sealing gaskets or locking nuts, and an oil groove can also be installed on the gland to facilitate lubrication and dynamic sealing.
  • the structural form of the dynamic sealing component can also be changed, for example, sealing gaskets or labyrinth-shaped bearings are provided at both ends of the bearing. sealing accessories.
  • Embodiment 1 The difference from Embodiment 1 is that in Embodiment 1, the components fixed on the moving plate and the fixed plate are all completed by fixing bolts 9 .
  • receiving grooves or fixing holes are provided on the moving plate and the fixed plate for the rotating parts, motor rotor and other components to be embedded and fixed in the corresponding plate bodies.
  • the fixing bolts and bolt holes can be eliminated.
  • gluing may also be used to connect and fix the moving plate and the fixed plate with corresponding components.
  • Embodiment 1 The difference from Embodiment 1 is that in Embodiment 1, the central rotating shaft 6 has a hollow shaft structure, and the flange 7 is provided with a sinking groove 8 .
  • the central rotating shaft is a solid structure.
  • the material of the central rotating shaft can be made of lightweight materials.
  • the sinking groove on the flange can also be omitted, and connecting parts such as clamps and threaded parts are used to connect the central rotating shaft. Connected and fixed to the lens assembly.
  • the housing assembly 4 includes a separately arranged sealing housing 22 and an annular sealing plate 23 for blocking the left end opening of the sealing housing 22.
  • the sealing housing 22 faces the central axis of rotation.
  • a removable sealing cover 24 is provided at position 6.
  • the structure of the sealed housing is a cylindrical casing made of two separate and spliced parts. The two cylindrical shells are spliced together to cover each component.
  • the structural shape of the housing component can also be changed, as long as each component can be covered for protection.
  • the housing component is an integrated cylindrical structure with a supply flange or a center on it. The escape hole through which the rotating shaft passes.

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Abstract

本发明涉及转动扫描技术领域，本发明的目的在于提供一种集成式转动部件，以解决现有技术中的转动部件结构排布杂乱导致转动部件质量较重、体积较大的技术问题。集成式转动部件包括轴承组件、角度解算组件、电机组件和壳体组件，壳体组件具有定盘；轴承组件包括中心转轴以及设在中心转轴左端的法兰盘，法兰盘构成了相对于定盘转动的动盘，定盘和动盘在中心轴线上左右间隔排布且互相平行，定盘和动盘之间构成了安装空间；电机组件包括电机定子和电机转子，角度解算组件包括静止件和旋转件，电机定子、电机转子、静止件、旋转件在基于中心轴线的径向延伸方向上层叠排布，旋转件、电机转子与动盘固定连接，静止件、电机定子与定盘固定连接。

Description

一种集成式转动部件 技术领域
本发明涉及转动扫描技术领域，具体涉及一种集成式转动部件。
背景技术
在卫星、航空航天等行业领域内，转动部件作为常用的连接组件，应用在多种设有扫描器的设备中，例如装配在发射卫星内的能够带动扫描镜头转动的转动部件，转动部件能够带动其上连接的扫描镜头实现多角度变换的测量状态；火箭或武器设备的发射同样需要配备能够监测武器、火箭等设备发射后实时位置和发射状态的雷达组件，雷达组件也属于扫描器的一种，雷达组件中同样设有精度较高的转动部件，转动部件连接固定信号接收器及接收盘，实现发射后设备的捕捉和实时监控。
现有技术中，人们为了获得高精度、高可靠性的扫描机构，不仅要对镜头组件进行革新，转动部件的性能也需要不断的提高和进步，授权公告号为CN207008187U的中国实用新型专利公开了一种用于光学遥感仪器的扫描机构，该专利提及的扫描机构包括扫描镜头组件以及连接在扫描镜头组件上的转动部件，其中，转动部件包括分置在扫描镜头组件左右两侧的游动轴组件和驱动轴组件，游动轴组件和驱动轴组件均通过其各自的转动半轴和镜头组件传动连接，驱动轴组件包括连接在转动半轴上且左右间隔排布的电机组件和转动轴承，游动轴组件包括连接在转动半轴上且左右排布的转动轴承和角度解算组件，角度解算组件为圆同步感应器，通过电机带动驱动轴组件中的转动半轴转动，进而带动镜头组件转动，再通过与驱动轴组件相对的另一侧的游动轴组件相配合，使圆同步感应器工作，实现镜头组件的角度和朝向切换。
然而上述专利中的扫描机构由于其内游动轴组件和驱动轴组件分体设置，并且其内部构件均左右间隔排布，造成扫描机构的整体体积和尺寸较大，在安装时需要在镜头组件的两侧分别固定安装两套组件，安装过程较为繁琐，同时还需要保证两套组件位置对应、精度满足使用需求。由于两轴组件中的转动半轴没有直接的传动连接，只是与镜头组件进行固定配合，造成了该扫描机构的装配难度较高，容易出现驱动轴和游动轴无法同步运行的情况，且其内部结构较为复杂，因此该扫描机构不适用于小口径、小尺寸***及轻量化需求的卫星部件。由高精度扫描、转动机构的工作原理与工况要求可知，转动部件用于驱动前端连接的扫描镜头等结构转动，镜头的朝向和角度需实现精准定位、旋停灵活以及长期稳定等关键性技 术需求。但现有技术中的其他转动部件和扫描机构均存在体积较大、内部驱动件和转动件排布杂乱，造成转动部件总质量较重、精度降低的技术问题，体积较大、内部驱动件和转动件排布杂乱还会导致转动部件运行时镜头的实际运转切换速度偏低，影响转动部件的润滑和密封效果，使转动部件的使用寿命降低。
发明内容
本发明的目的在于提供一种集成式转动部件，以解决现有技术中的转动部件结构排布杂乱导致转动部件质量较重、体积较大的技术问题。
为实现上述目的，本发明所提供的一种集成式转动部件的技术方案是：
一种集成式转动部件，包括轴承组件、角度解算组件和电机组件，转动部件还包括壳体组件，壳体组件具有定盘；所述轴承组件包括能够相对于定盘转动的中心转轴以及设在中心转轴左端的法兰盘，定义中心转轴的中心轴线沿左右方向延伸，法兰盘构成了相对于定盘转动的动盘，所述定盘和动盘在中心轴线上左右间隔排布且互相平行，定盘和动盘之间构成了用于集成装配所述轴承组件、角度解算组件和电机组件的安装空间；所述电机组件包括电机定子和电机转子，角度解算组件包括静止件和旋转件，电机定子、电机转子、静止件、旋转件在基于中心轴线的径向延伸方向上按设定顺序层叠排布，所述旋转件、电机转子与左端的动盘固定连接，所述静止件、电机定子与右端的定盘固定连接。
有益效果：本发明将电机组件、角度解算组件以及壳体组件均以轴承组件为中心呈向外辐射的层叠姿态依次间隔排布装配固定，电机组件的电机转子、电机定子和角度解算组件的旋转件和静止件均在中心转轴的径向上层叠布置，各组件的径向延伸方向均处于同一平面上，各组件集成为层叠式的转动部件结构，通过设置这种层叠式的转动部件，使转动部件内部的空间利用率极大地提高，转动部件的内部结构装配更紧凑，缩小了转动部件的体积，降低了转动部件的总重量，符合目前国内卫星等设备小型化、轻量化的发展要求。相较于现有技术中的内部结构排布杂乱导致结构体积较大、总质量较重、使用时实际运转速度较低的转动部件，本发明中的转动部件在装配后结构紧凑、质量减轻，缩小了中心转轴的旋转力矩，能够控制转动部件快速旋转，降低了转动惯量，当在动盘上连接镜头组件时，能够实现镜头组件的悬停灵活和精准定位，利于转动部件的精确控制和长期使用，解决了现有技术中的转动部件内部结构排布杂乱导致转动部件质量较重、体积较大的技术问题。
优选地，所述轴承组件包括固定在中心转轴上的平衡轴承，平衡轴承包括固定在中心转轴上的内圈以及用于与定盘固定连接的外圈；轴承组件还包括固定在平衡轴承外圈上的轴承座，轴承座左右延伸并将轴承的外圈覆盖。通过平衡轴承保证中心转轴在安装空间内的转 动稳定性，轴承座将轴承外圈包覆固定，增大了轴承外圈与外端部件的接触面积，便于平衡轴承的外圈与其他部件进行连接固定。
优选地，所述平衡轴承有两个在中心转轴上间隔排布，两平衡轴承均为角接触球轴承；所述轴承座将两平衡轴承的外圈固定。两角接触球轴承间隔固定使中心转轴的可调角度和转动范围均增大，利于镜头组件连接布置后的稳定性，并扩大了转动范围。
优选地，所述轴承组件还包括设在两平衡轴承之间的内隔圈和外隔圈以及设在中心转轴外周的动密封组件，动密封组件包括密封垫和锁紧螺母，密封垫和锁紧螺母分别设在两平衡轴承的外端，以将两轴承的左右两端和中心转轴之间的转动配合动态密封。动密封组件的密封垫和锁紧螺母能够保证平衡轴承内部润滑的密封性，防止加注在轴承上的润滑剂经中心转轴转动流出。
优选地，所述动密封组件还包括设在轴承座和中心转轴之间的压盖，压盖与轴承座固定连接，压盖为锯齿状结构，压盖延伸至平衡轴承的外端，从而与密封垫和锁紧螺母构成迷宫形的密封配合。锯齿状的压盖能够在轴承外端构成迷宫形的配合密封结构，提高动密封的紧密效果。
优选地，所述压盖的密封配合处设有防溢散涂层。防溢散涂层进一步防止加注在轴承上的润滑剂溢散外流。
优选地，所述角度解算组件设在电机组件和轴承组件之间，所述中心转轴的径向上由转轴外周向外依次排布所述静止件、旋转件、电机定子、电机转子。将角度解算组件设在电机组件和轴承组件之间，使角度解算组件位于电机的输出力矩和中心转轴的传动位置之间，利于角度解算组件的测算和测量结果的精确，防止角度解算组件偏置在一侧出现测量误差。
优选地，所述中心转轴为空心轴体结构，所述法兰盘上设有沉槽，沉槽与中心转轴的中心孔对应，沉槽用于与镜头组件固定连接。空心结构降低中心转轴的重量，利于中心转轴的降重提速。
优选地，所述定盘和动盘上均设有螺栓穿孔，螺栓穿孔中均穿设有固定螺栓，固定螺栓用于将动盘和定盘上对应的各连接结构可拆地固定装配。通过固定螺栓的穿设使各连接结构在定盘和动盘上均能够快速安装和拆卸，利于转动组件的快速连接布置和后续的拆卸维修。
优选地，所述壳体组件包括密封外壳和环形密封板，密封外壳为开口朝左的筒状结构，密封外壳的筒底板构成了所述定盘，密封外壳用于固定连接在中心转轴的右端，密封外壳的内腔和法兰盘围成了所述安装空间，环形密封板固定在密封外壳的左端开口处，以使安装空间封闭，密封外壳上设有朝向中心转轴布置的可拆密封盖。筒状的密封外壳能够将各连接组 件均包覆在内腔中，对各连接组件进行保护，环形密封板能够将密封外壳的筒口封闭，保证安装空间的密封性；可拆密封盖的设置便于筒底组件的连接和观察密封外壳的内部情况。
附图说明
图1为本发明所提供的实施例1中集成式转动部件与镜头组件连接的结构示意图；
图2为图1中集成式转动部件的结构示意图；
图3为图2中集成式转动部件的左视图。
附图标记说明：
1、轴承组件；2、角度解算组件；3、电机组件；4、壳体组件；5、镜头组件；6、中心转轴；7、法兰盘；8、沉槽；9、固定螺栓；10、平衡轴承；11、内隔圈；12、外隔圈；13、密封垫；14、锁紧螺母；15、压盖；16、轴承座；17、压环；18、静止件；19、旋转件；20、电机定子；21、电机转子；22、密封外壳；23、环形密封板；24、密封盖；25、防溢散涂层；26、安装空间。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明了，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本发明，并不用于限定本发明，即所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。通常在此处附图中描述和示出的本发明实施例的组件可以以各种不同的配置来布置和设计。
因此，以下对在附图中提供的本发明的实施例的详细描述并非旨在限制要求保护的本发明的范围，而是仅仅表示本发明的选定实施例。基于本发明的实施例，本领域技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例，都属于本发明保护的范围。
需要说明的是，可能出现的术语如“第一”和“第二”等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语如“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”等限定的要素，并不排除在包括所述要素的过程、方法。
在本发明的描述中，除非另有明确的规定和限定，可能出现的术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接连接，也可以是通过中间媒介间接相连，或者可以 是两个元件内部的连通。对于本领域技术人员而言，可以通过具体情况理解上述术语在本发明中的具体含义。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，可能出现的术语“设有”应做广义理解，例如，“设有”的对象可以是本体的一部分，也可以是与本体分体布置并连接在本体上，该连接可以是可拆连接，也可以是不可拆连接。对于本领域技术人员而言，可以通过具体情况理解上述术语在本发明中的具体含义。
以下结合实施例对本发明作进一步地详细描述。
本发明所提供的集成式转动部件的具体实施例1：
如图1至图3所示，集成式转动部件在使用时与镜头组件5进行连接，从而能够连接布置在卫星、航空航天等应用场景中，集成式转动部件在本实施例为应用在对地扫描机构中的转动部件，转动部件连接的镜头组件5为对地扫描机构用的高精度扫描镜头组件。
如图1所示，集成式转动部件包括集成装配在一起的轴承组件1、角度解算组件2、电机组件3以及壳体组件4，轴承组件1上转动连接有镜头组件5，定义本实施例中的镜头组件5和转动部件沿左右方向固定连接，其中，轴承组件1位于转动部件的中心位置，轴承组件1的径向外部层叠间隔固定电机组件3，角度解算组件2装配在轴承组件1和电机组件3之间的间隔中，壳体组件4罩在固定后的各组件外部，构成了各内部组件在轴承组件1的径向上层叠排布的集成式转动部件。
更具体地，如图1和图2所示，轴承组件1包括中心转轴6以及设在中心转轴6左端的法兰盘7，中心转轴6的中心轴线沿左右方向延伸，法兰盘7构成了随中心转轴6转动的动盘，中心转轴6作为整个集成式转动部件的中心进行连接装配，法兰盘7的左端面用于与镜头组件5固定连接。如图2所示，为减轻中心转轴6重量的同时方便镜头组件5连接，中心转轴6的轴体为空心结构，其中心穿孔左右贯通并延伸至法兰盘7上，法兰盘7的左端面设有沉槽8，沉槽8的中心与中心转轴6的通孔连通，沉槽8用于固定装配镜头组件5。其中，轴承组件1还包括固设在中心转轴6上的平衡轴承10，本实施例中的平衡轴承10为角接触球轴承，角接触球轴承将中心转轴6角度可调地连接在转动部件中。
如图2和图3所示，转动部件的壳体组件4将中心转轴6罩在内，壳体组件4包括开口朝左的筒形密封外壳22以及设在法兰盘7的径向外端的环形密封板23，环形密封板23用于将密封外壳22的左端开口密封，通过法兰盘7-环形密封板23-密封外壳22的合围，围成了用于集成装配轴承组件1、角度解算组件2和电机组件3的封闭式安装空间26，安装空间26在垂直于中心轴线的径向方向上延伸。其中，电机组件3包括电机定子20和电机转子21， 角度解算组件2包括静止件18和旋转件19，电机定子20、电机转子21、静止件18、旋转件19以及平衡轴承10均在安装空间26内基于中心轴线的径向按设定顺序层叠排布。如图2和图3所示，密封壳体22的右端中心还设有与中心转轴6对应的可拆密封盖24，密封盖24拆下时方便密封壳体22内腔中组件的连接装配和检修观察。
本实施例中，密封壳体22在中心转轴6外部装配固定后静止不动，而法兰盘7跟随中心转轴6转动，因此密封壳体22的右端筒底板构成了定盘，法兰盘7构成了相对于定盘转动的动盘，定盘和动盘在中心轴线上左右间隔排布且互相平行，旋转件19、电机转子21和平衡轴承10的内圈与左端的动盘固定连接，静止件18、电机定子20和平衡轴承10的外圈与右端的定盘固定连接。
如图2所示，平衡轴承10设有两个，两平衡轴承10为相同型号的角接触球轴承，两平衡轴承在中心转轴6上间隔排布且背对背安装，左端的平衡轴承10靠近法兰盘7装配布置，右端的平衡轴承10靠近密封外壳22的筒底布置。其中，轴承组件1还包括设在两平衡轴承10之间的隔圈、设在两平衡轴承10左右端外侧的动密封结构以及固定在轴承外圈的径向外侧、将两轴承外圈均包围固定的轴承座16。如图2所示，隔圈包括固设在中心转轴6外周上的内隔圈11以及与内隔圈11相间隔的外隔圈12，内隔圈11支撑固定在两平衡轴承10的内圈之间，外隔圈12支撑固定在两平衡轴承10的外圈之间，隔圈保证两平衡轴承10互相间隔。
如图2所示，动密封组件包括密封垫13、锁紧螺母14和压盖15，密封垫13和锁紧螺母14分别设在两平衡轴承10的左右侧外端，以将两轴承的左右两端动态密封，密封垫13固设在法兰盘7和左端的平衡轴承10之间，锁紧螺母14旋拧固定在中心转轴6的右端，以从右侧对轴承预紧；轴承座16的左右两端延伸至两轴承的左右外端，压盖15一端固定在轴承座16上，另一端向下延伸并与密封垫13和锁紧螺母14密封配合，其中，压盖15为锯齿状结构，密封垫13和锁紧螺母14上均设有与锯齿状结构相配合的密封结构，以使压盖15与密封垫13、锁紧螺母14均构成迷宫形的密封配合。压盖15与轴承座16通过螺栓固定配合，压盖15的迷宫形的密封配合面上还设有防溢散涂层25。
如图2所示，角度解算组件2的旋转件19和静止件18均属于精密角度解算器的组成结构，静止件18贴合固定在轴承座16的外周，静止件18右端通过固定螺栓9固定在定盘上，为保证静止件装配牢固，轴承座16的左端径向外周还设有压环17，压环17和固定螺栓9配合将静止件18固定。旋转件19位于静止件18的径向外侧，旋转件19的左端通过固定螺栓9固定在动盘上从而跟随动盘转动，静止件18能够与旋转的旋转件19配合测算，从而在法兰盘7转动时计算出中心转轴6和镜头组件5的旋转角度和旋转方位。
如图2所示，电机定子20设在旋转件19的径向外侧，电机转子21设在电机定子20的径向外侧，电机定子20和电机转子21均通过固定螺栓9固定在对应的盘体上。本实施例中，中心转轴6的旋转由电机组件3带动，转动部件以中心转轴6为中心，以层层包覆的形式将各组件集成在一起，电机转子21相对于电机定子20转动时，动盘同步转动，中心转轴6带动平衡轴承10的内圈、动盘上的旋转件19均进行转动。本实施例中的转动部件以中心转轴6为中心，基于中心轴线的径向方向上依次间隔排布为平衡轴承10、轴承座16、静止件18、旋转件19、电机定子20以及电机转子21，各组件均间隙配合、层叠排布，动盘和定盘上均设有供固定螺栓9穿入的螺栓穿孔。
本实施例中，角接触轴承内部可以采用含油保持架-润滑油-润滑脂的混合润滑方式，这样的油脂组合润滑可以极大改善轴承长年在低转速运转工况下的磨损和消耗情况，实现产品的长寿命要求，采用动密封结构有效防止油脂沿中心转轴6溢散。本实施例中的电机组件3采用无刷直流电机，为轴承组件1提供其所需要的平稳力矩，驱动轴承组件1平稳运转。本实施例中精密角度解算器属于绝对式角位移传感器的一种，可以在转动部件运转过程中，对镜头的扫描角度、位置及速度进行检测，并且实现角位移信号与电信号之间的转换，从而实现对扫描角度的精确定位。装配时，用一定力矩将锁紧螺母14与中心转轴6拧紧，实现对轴承施加一定的预载荷。本实施例中，所采用的轴承座16、中心转轴6配合面经过精研加工，而压盖15、锁紧螺母14、内隔圈11、外隔圈12以及密封垫13均采用精磨加工，使零件具有较高的尺寸精度，保证转动部件与镜头组件5的装配精度。本实施例中，壳体组件4采用铝制材料制成，实现产品轻量化需求，密封外壳22、密封盖24、环形密封板23的表面均采用导电氧化的表面处理方法，对内部的电机组件3、角度解算组件2和轴承组件1起到密封、保护作用，并且实现壳体表面稳定电阻的作用。
本实施例中，电机组件3、角度解算组件2以及壳体组件4均以轴承组件1为中心呈向外辐射的层叠姿态依次间隔排布装配固定，电机组件3包覆固定在轴承组件1的径向外侧，电机组件3和轴承组件1之间的间隙中设有角度解算组件2，壳体组件4罩在固定后的轴承组件1和电机组件3的外部，各组件的径向延伸方向均处于同一平面上，各组件层叠排布集成为转动部件结构，通过这种层叠式的转动部件，使转动部件内部的组件结构更紧凑，极大的缩小了转动部件的体积，提高了空间利用率，降低了转动部件的总重量，符合目前国内卫星等设备小型化、轻量化的发展要求；相较于现有技术中的结构体积较大、总质量较重而导致轴承、转轴等组件在运行时实际运转速度较低的转动部件，本实施例中的转动部件在连接后由于质量减轻、力矩减小，能够控制转动部件快速旋转，降低了转动惯量，能够实现前端 镜头悬停灵活，精准定位，利于转动部件的精确控制和长期使用，解决了现有技术中的转动部件内部结构排布杂乱导致转动部件质量较重、体积较大的技术问题。
本实施例中，法兰盘7在中心转轴6左端一体设置，法兰盘7构成了动盘，密封壳体22的右端筒底板构成了定盘。当然，在其他实施例中，可以在中心转轴的左右两端额外设置分体的动盘和定盘结构，例如中心转轴一端转动穿装定盘，中心转轴穿过定盘并能够相对定盘转动，中心转轴另一端焊接和定盘平行间隔的动盘，动盘跟随中心转轴转动，动盘和定盘在中心轴线的径向上围成安装空间。
本发明所提供的集成式转动部件的具体实施例2：
与实施例1的不同之处在于，实施例1中，轴承组件1包括平衡轴承10以及固设在轴承外圈上的轴承座16。本实施例2中，取消轴承座，将角度解算组件的静止件直接和轴承外圈或轴承之间的挡圈固定连接。其他实施例中，轴承座还可以替换为弧形固定板、连接板等连接固定结构。
本发明所提供的集成式转动部件的具体实施例3：
与实施例1的不同之处在于，实施例1中，平衡轴承10在中心转轴6上间隔排布有两个，两平衡轴承10均为角接触球轴承。本实施例3中，平衡轴承设置两个以上，例如在中心转轴的左端设有两个平衡轴承，右端设有两个平衡轴承，共四个平衡轴承配合使用。其他实施例中，平衡轴承还可以是深沟球轴承。
本发明所提供的集成式转动部件的具体实施例4：
与实施例1的不同之处在于，本实施例4中，轴承组件1中平衡轴承10的固定件可进行更换，例如将隔圈替换为挡圈或挡环，也可以在两轴承的外端均设置密封垫或锁紧螺母，还可以在压盖上设置油槽，以方便润滑和动密封，同理，动密封组件的结构形式也可以进行改变，例如轴承两端均设置密封垫或迷宫形的密封配件。
本发明所提供的集成式转动部件的具体实施例5：
与实施例1的不同之处在于，实施例1中，动盘和定盘上固定的部件均由固定螺栓9完成。本实施例5中，动盘和定盘上设置容纳槽或固定孔，用于供旋转件、电机转子等部件嵌装固定在对应的盘体内，此时可以取消固定螺栓和螺栓孔。其他实施例中，还可以使用胶粘的方式将动盘和定盘与对应的组件进行连接固定。
本发明所提供的集成式转动部件的具体实施例6：
与实施例1的不同之处在于，实施例1中，中心转轴6为空心轴体结构，法兰盘7上设有沉槽8。本实施例6中，中心转轴为实心结构，此时的中心转轴的材质可以选用轻质材 料制成，法兰盘上的沉槽也可以取消布置，采用连接件如夹具、螺纹件将中心转轴和镜头组件连接固定。
本发明所提供的集成式转动部件的具体实施例7：
与实施例1的不同之处在于，实施例1中，壳体组件4包括分体设置的密封外壳22以及用于将密封外壳22左端开口封堵的环形密封板23，密封外壳22朝向中心转轴6的位置上设有可拆的密封盖24。本实施例7中，密封外壳的结构为两段分体拼接的筒状壳体，两段筒状壳体拼接后将各组件包覆在内。其他实施例中，壳体组件的结构形状还可以改变，只要能够将各组件包覆在内进行保护即可，例如壳体组件为一体式筒状结构，其上设有供法兰盘或中心转轴穿出的避让孔。
最后需要说明的是，以上所述仅为本发明的优选实施例，并不用于限制本发明，尽管参照前述实施例对本发明进行了详细地说明，对于本领域的技术人员来说，其依然可以对前述各实施例所记载的技术方案进行不需付出创造性劳动地修改，或者对其中部分技术特征进行等同替换。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种集成式转动部件，包括轴承组件(1)、角度解算组件(2)和电机组件(3)，其特征在于，转动部件还包括壳体组件(4)，壳体组件(4)具有定盘；所述轴承组件(1)包括能够相对于定盘转动的中心转轴(6)以及设在中心转轴(6)左端的法兰盘(7)，定义中心转轴(6)的中心轴线沿左右方向延伸，法兰盘(7)构成了相对于定盘转动的动盘，所述定盘和动盘在中心轴线上左右间隔排布且互相平行，定盘和动盘之间构成了用于集成装配所述轴承组件(1)、角度解算组件(2)和电机组件(3)的安装空间(26)；所述电机组件(3)包括电机定子(20)和电机转子(21)，角度解算组件(2)包括静止件(18)和旋转件(19)，电机定子(20)、电机转子(21)、静止件(18)、旋转件(19)在基于中心轴线的径向延伸方向上按设定顺序层叠排布，所述旋转件(19)、电机转子(21)与左端的动盘固定连接，所述静止件(18)、电机定子(20)与右端的定盘固定连接。
  2. 根据权利要求1所述的集成式转动部件，其特征在于，所述轴承组件(1)包括固定在中心转轴(6)上的平衡轴承(10)，平衡轴承(10)包括固定在中心转轴(6)上的内圈以及用于与定盘固定连接的外圈；轴承组件(1)还包括固定在平衡轴承(10)外圈上的轴承座(16)，轴承座(16)左右延伸并将轴承的外圈覆盖。
  3. 根据权利要求2所述的集成式转动部件，其特征在于，所述平衡轴承(10)在中心转轴(6)上间隔排布有两个，两平衡轴承(10)均为角接触球轴承；所述轴承座(16)将两平衡轴承(10)的外圈固定。
  4. 根据权利要求3所述的集成式转动部件，其特征在于，所述轴承组件(1)还包括设在两平衡轴承(10)之间的内隔圈(11)和外隔圈(12)以及设在中心转轴(6)外周的动密封组件，动密封组件包括密封垫(13)和锁紧螺母(14)，密封垫(13)和锁紧螺母(14)分别设在两平衡轴承(10)的外端，以将两轴承的左右两端和中心转轴(6)之间的转动配合动态密封。
  5. 根据权利要求4所述的集成式转动部件，其特征在于，所述动密封组件还包括设在轴承座(16)和中心转轴(6)之间的压盖(15)，压盖(15)与轴承座固定连接，压盖(15)为锯齿状结构，压盖(15)延伸至平衡轴承(10)的外端，从而与密封垫(13)和锁紧螺母(14)构成迷宫形的密封配合。
  6. 根据权利要求5所述的集成式转动部件，其特征在于，所述压盖(15)的密封配合处设有防溢散涂层(25)。
  7. 根据权利要求1-6中任意一项所述的集成式转动部件，其特征在于，所述角度解算组件(2)设在电机组件(3)和轴承组件(1)之间，所述中心转轴(6)的径向上由转轴外周向外依次排布所述静止件(18)、旋转件(19)、电机定子(20)、电机转子(21)。
  8. 根据权利要求1-6中任意一项所述的集成式转动部件，其特征在于，所述中心转轴(6)为空心轴体结构，所述法兰盘(7)上设有沉槽(8)，沉槽(8)与中心转轴(6)的中心孔对应，沉槽(8)用于与镜头组件(5)固定连接。
  9. 根据权利要求8所述的集成式转动部件，其特征在于，所述定盘和动盘上均设有螺栓穿孔，螺栓穿孔中均穿设有固定螺栓(9)，固定螺栓(9)用于将动盘和定盘对应的各连接结构可拆地固定装配。
  10. 根据权利要求1-6中任意一项所述的集成式转动部件，其特征在于，所述壳体组件(4)包括密封外壳(22)和环形密封板(23)，密封外壳(22)为开口朝左的筒状结构，密封外壳(22)的筒底板构成了所述定盘，密封外壳(22)用于固定连接在中心转轴(6)的右端，密封外壳的内腔和法兰盘(7)围成了所述安装空间(26)，环形密封板(23)固定在密封外壳(22)的左端开口处，以使安装空间(26)封闭，密封外壳(22)上设有朝向中心转轴(6)布置的可拆密封盖(24)。
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