CN113958617A - Integrated bearing of laser radar motor, laser radar motor and laser radar - Google Patents

Integrated bearing of laser radar motor, laser radar motor and laser radar Download PDF

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Publication number
CN113958617A
CN113958617A CN202111428710.0A CN202111428710A CN113958617A CN 113958617 A CN113958617 A CN 113958617A CN 202111428710 A CN202111428710 A CN 202111428710A CN 113958617 A CN113958617 A CN 113958617A
Authority
CN
China
Prior art keywords
bearing
shaft
integrated
inner ring
motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111428710.0A
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Chinese (zh)
Inventor
张杨
韩杰
陈钢
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tudaton Intelligent Technology Suzhou Co ltd
Original Assignee
Tudaton Intelligent Technology Suzhou Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tudaton Intelligent Technology Suzhou Co ltd filed Critical Tudaton Intelligent Technology Suzhou Co ltd
Priority to CN202111428710.0A priority Critical patent/CN113958617A/en
Publication of CN113958617A publication Critical patent/CN113958617A/en
Priority to PCT/IB2022/061375 priority patent/WO2023095046A1/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/08—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with two or more rows of balls
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/50—Other types of ball or roller bearings
    • F16C19/505—Other types of ball or roller bearings with the diameter of the rolling elements of one row differing from the diameter of those of another row
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
    • F16C19/527—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions related to vibration and noise
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/54—Systems consisting of a plurality of bearings with rolling friction
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/581—Raceways; Race rings integral with other parts, e.g. with housings or machine elements such as shafts or gear wheels
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/583—Details of specific parts of races
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/60—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/063—Fixing them on the shaft
    • 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
    • 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
    • H02K5/1737—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 rotor around a fixed spindle; radially supporting the rotor directly
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
    • F16C2240/60—Thickness, e.g. thickness of coatings
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2370/00—Apparatus relating to physics, e.g. instruments
    • F16C2370/20—Optical, e.g. movable lenses or mirrors; Spectacles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/88—Lidar systems specially adapted for specific applications
    • G01S17/93—Lidar systems specially adapted for specific applications for anti-collision purposes
    • G01S17/931—Lidar systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/481—Constructional features, e.g. arrangements of optical elements
    • G01S7/4817—Constructional features, e.g. arrangements of optical elements relating to scanning

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Motor Or Generator Frames (AREA)
  • Optical Radar Systems And Details Thereof (AREA)

Abstract

The invention discloses an integrated bearing of a laser radar motor, the laser radar motor and a laser radar, wherein the integrated bearing comprises a shaft and a bearing arranged on the shaft, wherein the bearing is a double-row ball bearing, and an inner ring of the bearing is integrated with the shaft; or the bearing comprises a first bearing and a second bearing, wherein the inner ring of the first bearing is integrated with the shaft, and the inner ring of the second bearing is arranged on the outer diameter of the shaft in a sliding mode and is positioned on the first bearing. The problem of adopt two single-file deep groove ball bearings to assemble respectively epaxial among the prior art's the laser radar motor, need add the packing ring between two single-file deep groove ball bearings and lead to the assembly degree of difficulty big is solved, adopt integral type bearing, can greatly reduced assembly degree of difficulty, the assembly precision is higher moreover, and the reliability is better. In addition, the integrated bearing which integrates the inner ring of one bearing and the inner ring of the other bearing into a whole with the shaft is adopted, so that the vibration of the motor can be improved, and the stability of point cloud imaging is improved.

Description

Integrated bearing of laser radar motor, laser radar motor and laser radar
Technical Field
The invention relates to the technical field of laser radar motors, in particular to an integrated bearing of a laser radar motor, the laser radar motor and a laser radar.
Background
The vehicle-mounted laser radar system relates to a plurality of complex systems such as light, circuits, machinery, motors and the like, and is particularly applied because the output of the system is optical point cloud, and the requirements on the precision and the reliability of the motors are high. The traditional bearing application forms, such as single-row and double-row deep groove ball bearings, are all composed of an outer ring, an inner ring, a group of steel balls and a group of retainers, and the requirements on vibration and reliability cannot be well met.
As shown in fig. 1, in a laser radar motor in the prior art, two single-row deep groove ball bearings 2 ' are axially sleeved on a motor shaft 1 ', in order to improve precision, the inner ring of the bearing 2 ' needs to be machined by one cut, and a bearing gasket 3 ' is used between the two single-row deep groove ball bearings 2 ' as a limit of the bearing. The problem with this arrangement is that it is difficult to assemble.
Disclosure of Invention
Aiming at the technical problems, the invention aims to provide an integrated bearing of a laser radar motor, the laser radar motor and a laser radar, and solves the problem of high assembly difficulty caused by the fact that two single-row deep groove ball bearings are assembled on a motor shaft and a gasket is additionally arranged between the two single-row deep groove ball bearings to serve as a limiting position in the conventional vehicle-mounted laser radar system.
The technical scheme of the invention is as follows:
the invention aims to provide an integrated bearing of a laser radar motor, which comprises a shaft and a bearing arranged on the shaft, wherein the bearing is a double-row ball bearing, and an inner ring of the bearing is integrated with the shaft; or the bearing comprises a first bearing and a second bearing, wherein the inner ring of the first bearing is integrated with the shaft, and the inner ring of the second bearing is arranged on the outer diameter of the shaft in a sliding mode and is positioned on the first bearing.
The invention also aims to provide a laser radar motor which comprises a shell, a rotor assembly, a stator assembly and a bearing arranged in the shell, wherein the bearing is an integrated bearing.
It is a further object of the present invention to provide a lidar motor including a lidar motor as described above.
Compared with the prior art, the invention has the advantages that:
according to the integrated bearing of the laser radar motor, the problem that the assembly difficulty is high due to the fact that two single-row deep groove ball bearings are adopted to be respectively assembled on the shaft and a gasket needs to be additionally arranged between the two single-row deep groove ball bearings in the laser radar motor in the prior art is solved by adopting the integrated bearing formed by integrating the inner ring of one double-row ball bearing with the shaft or integrating the inner ring of one bearing with the shaft and slidably fitting the other bearing on the shaft. In addition, the integrated bearing which integrates the inner ring of one bearing and the inner ring of the other bearing into a whole with the shaft is adopted, so that the vibration of the motor can be improved, and the stability of point cloud imaging is improved.
Drawings
The invention is further described with reference to the following figures and examples:
fig. 1 is a schematic cross-sectional structural view of a laser radar motor in the prior art (the upper casing is omitted);
FIG. 2 is a schematic cross-sectional view of an integral bearing of one configuration of a lidar motor of an embodiment of the invention;
FIG. 3 is a schematic cross-sectional view of an alternative configuration of an integral bearing for a lidar motor according to an embodiment of the invention;
fig. 4 is a schematic cross-sectional view of the integrated bearing of fig. 3 assembled within a lidar motor.
Wherein: 1. an integral bearing; 11. a shaft; 12. a double-row ball bearing; 120. double-row ball bearing balls; 121. a first bearing; 1211. a first bearing outer race; 1212. a first bearing ball; 122. a second bearing; 1221. a second bearing outer race; 1222. a second bearing ball; 2. a bottom case; 3. a rotor assembly; 31. a rotor yoke; 32. an optical mirror; 33. a magnetic ring; 34. pressing a plate; 4. a stator assembly; 5. wave washer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Example (b):
referring to fig. 2 to 3, the integrated bearing of the lidar motor according to the embodiment of the present invention includes a shaft 11 and a bearing provided on the shaft 11.
Specifically, in one embodiment of the present invention, as shown in fig. 2, the integrated bearing is an integrated bearing 1 in which a double-row ball bearing 12 is integrated with a shaft 11. The bearing of this kind of structure's space is bigger, easily oil storage and dustproof design, and the assembly precision of bearing and axle switchovers to the assembly precision of bearing factory, and the assembly degree of difficulty is lower, and the precision is higher, and the good reliability.
In another embodiment of the present invention, as shown in fig. 3, the bearing of the integrated bearing 1 includes a first bearing 121 and a second bearing 122, the inner ring of the first bearing 121 is integrated with the shaft 11, and the inner ring of the second bearing 122 is slidably fitted on the outer diameter of the shaft 11 and is located above the first bearing 121. The applicant finds that, by adopting the integrated bearing with the two-in-one inner ring and the two-in-one outer ring of the double-row ball bearing in the embodiment, although the problem of high assembly difficulty caused by adopting two single-row deep groove ball bearings in the prior art can be solved, the integrated bearing still has some problems, namely that the axial pretightening force of the wave washer 5 applied to the bearing is invalid, the play of the bearing cannot be adjusted, the vibration of a motor is influenced, and the optical point cloud imaging is greatly influenced. The applicant has therefore developed an integrated bearing in this embodiment. The assembly difficulty is reduced, the assembly precision and reliability are improved, meanwhile, the vibration of the motor is improved, and the stability of point cloud imaging is improved.
More specifically, as shown in fig. 3, when the inner ring of the first bearing 121 is integrated with the shaft 11 and the inner ring of the second bearing 122 is slidably fitted on the shaft 11, the outer ring 121 of the first bearing and the outer ring 1221 of the second bearing are integrated or separated. The specific structure is not particularly limited. The preferred adoption is integrative in this implementation, can further reduce the assembly degree of difficulty, improves assembly precision and reliability.
According to some embodiments of the present invention, when the inner ring of the first bearing 121 is integrated with the shaft 11 and the inner ring of the second bearing 122 is slidably fitted on the shaft 11, a gap is formed between the inner ring of the second bearing 122 and the outer diameter of the shaft 11, so that the difficulty of assembly is further reduced.
As shown in fig. 3, when the inner ring of the first bearing 121 is integrated with the shaft 11 and the inner ring of the second bearing 122 is slidably fitted on the shaft 11, the diameter of the ball 1212 in the first bearing 121 is larger than the diameter of the ball 1222 in the second bearing 122. By the design, the load of the integrated bearing is increased, and the integrated bearing is more suitable for being applied to a cantilever beam structure.
As shown in fig. 2 and 3, according to some preferred embodiments of the present invention, when the inner ring of the first bearing 121 is integrated with the shaft 11 and the inner ring of the second bearing 122 is slidably fitted on the shaft 11, the wall thickness of the outer ring 1211 of the first bearing 121 is greater than that of the outer ring 1221 of the second bearing 122 or greater than that of the outer ring of the bearing when one double row ball bearing 12 is used and the inner ring is integrated with the shaft 11. The purpose of the design can reduce the deformation of the outer ring when the bearing is assembled.
As shown in fig. 3, when the inner ring of the first bearing 121 is integrated with the shaft 11 and the inner ring of the second bearing 122 is slidably fitted on the shaft 11, the shaft 11 is a stepped shaft, and the diameter of the shaft 11 at the position corresponding to the first bearing 121 is larger than the diameter of the shaft 11 at the position corresponding to the second bearing 122.
Alternatively, when the inner ring of the first bearing 121 is integrated with the shaft 11 and the inner ring of the second bearing 122 is slidably fitted on the shaft 11, the second bearing 122 may be an existing common single-row deep groove ball bearing.
The embodiment of the invention also provides a laser radar motor which comprises a shell, a rotor assembly 3, a stator assembly 4, a wave washer 5 and the integrated bearing of the embodiment. Specifically, as shown in fig. 4, the lower end of the integrated bearing 1 is press-fitted onto the housing (the upper housing is omitted in the figure), specifically, the bottom housing 2, the rotor assembly 3 includes a rotor yoke 31, an optical emitter 32 and a pressing plate 34, the rotor yoke 31 is disposed outside the integrated bearing 1, the optical reflector 32 is fixed on the rotor yoke 31, a magnetic ring 33 is disposed inside the lower end of the rotor yoke 31, the lower end of the integrated bearing 1 is fixed to the stator assembly 4 corresponding to the inner side of the magnetic ring 33, the pressing plate 34 is press-fitted onto the rotor yoke 31 and the optical reflector 32, the wave washer 5 is sleeved on the shaft 11, and the bottom end of the wave washer is pressed against the upper end and the top end of the integrated bearing 1. The integrated bearing comprises the embodiment, so that the beneficial effects of the integrated bearing at least have the embodiment, and detailed description is omitted. The assembling difficulty of the bearing is reduced, the assembling precision and reliability of the bearing are improved, and a dustproof and oil retaining structure is easy to design.
The embodiment of the invention also provides a laser radar which comprises the laser radar motor of the embodiment. Because including the lidar motor of above-mentioned embodiment, consequently have the beneficial effect of the lidar motor of above-mentioned embodiment at least, specifically no longer describe. The assembling difficulty of the bearing is reduced, the assembling precision and reliability of the bearing are improved, and a dustproof and oil retaining structure is easy to design.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims (9)

1. The integrated bearing of the laser radar motor is characterized by comprising a shaft and a bearing arranged on the shaft, wherein the bearing is a double-row ball bearing, and an inner ring of the bearing is integrated with the shaft; or the bearing comprises a first bearing and a second bearing, wherein the inner ring of the first bearing is integrated with the shaft, and the inner ring of the second bearing is arranged on the outer diameter of the shaft in a sliding mode and is positioned on the first bearing.
2. The lidar motor integrated bearing according to claim 1, wherein when the inner ring of the first bearing is integrated with the shaft and the inner ring of the second bearing is slidably fitted on the shaft, the outer ring of the first bearing and the outer ring of the second bearing are integrated or separated.
3. The lidar motor integrated bearing of claim 1, wherein when the inner ring of the first bearing is integrated with the shaft and the inner ring of the second bearing is slidably fitted on the shaft, a gap is formed between the inner ring of the second bearing and the outer diameter of the shaft.
4. The lidar motor integrated bearing of claim 1, wherein when the inner ring of the first bearing is integrated with the shaft and the inner ring of the second bearing is slidably fitted on the shaft, the diameter of the balls in the first bearing is larger than that of the balls in the second bearing.
5. The lidar motor of claim 1, wherein when the inner ring of the first bearing is integrated with the shaft and the inner ring of the second bearing is slidably fitted on the shaft, the wall thickness of the outer ring of the first bearing is greater than the wall thickness of the outer ring of the second bearing or greater than the wall thickness of the outer ring of the bearing when a double row ball bearing is used and the inner ring is integrated with the shaft.
6. The lidar motor of claim 1, wherein when the inner ring of the first bearing is integrated with the shaft and the inner ring of the second bearing is slidably fitted on the shaft, the shaft is a stepped shaft, and the diameter of the shaft at the position corresponding to the first bearing is larger than that of the shaft at the position corresponding to the second bearing.
7. The lidar motor integrated bearing of claim 1, wherein when the inner ring of the first bearing is integrated with the shaft and the inner ring of the second bearing is slidably fitted on the shaft, the second bearing is a single-row deep groove ball bearing.
8. A lidar motor comprising a housing, a rotor assembly, a stator assembly, and a bearing disposed within the housing, wherein the bearing is an integral bearing according to any of claims 1-7.
9. A lidar motor according to claim 8, comprising the lidar motor.
CN202111428710.0A 2021-11-29 2021-11-29 Integrated bearing of laser radar motor, laser radar motor and laser radar Pending CN113958617A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202111428710.0A CN113958617A (en) 2021-11-29 2021-11-29 Integrated bearing of laser radar motor, laser radar motor and laser radar
PCT/IB2022/061375 WO2023095046A1 (en) 2021-11-29 2022-11-24 Integrated bearing of lidar motor, lidar motor, and lidar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111428710.0A CN113958617A (en) 2021-11-29 2021-11-29 Integrated bearing of laser radar motor, laser radar motor and laser radar

Publications (1)

Publication Number Publication Date
CN113958617A true CN113958617A (en) 2022-01-21

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ID=79472356

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111428710.0A Pending CN113958617A (en) 2021-11-29 2021-11-29 Integrated bearing of laser radar motor, laser radar motor and laser radar

Country Status (2)

Country Link
CN (1) CN113958617A (en)
WO (1) WO2023095046A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3038112C2 (en) * 1980-10-09 1982-09-30 Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt Method for adjusting the axial preload of a double-row radial roller bearing for a shaft and a bearing mounted accordingly
EP0591587B1 (en) * 1992-10-06 1998-03-25 Minebea Kabushiki-Kaisha Double-row ball bearing
JP2004162729A (en) * 2002-09-24 2004-06-10 Minebea Co Ltd Double row ball bearing and preload providing method for double row ball bearing
JP2016012988A (en) * 2014-06-30 2016-01-21 シナノケンシ株式会社 Rotary body driving device

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