CN213715462U - Laser radar scanning device based on hollow motor - Google Patents
Laser radar scanning device based on hollow motor Download PDFInfo
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- CN213715462U CN213715462U CN202121339776.8U CN202121339776U CN213715462U CN 213715462 U CN213715462 U CN 213715462U CN 202121339776 U CN202121339776 U CN 202121339776U CN 213715462 U CN213715462 U CN 213715462U
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Abstract
The utility model discloses a laser radar scanning device based on hollow motor, which belongs to the technical field of laser radar scanning devices, and comprises a rotating mechanism, an optical mechanism, a transfer shaft, an optical transmitting and receiving electric control board and a hollow motor, wherein the hollow motor comprises a motor rotor and a motor stator, the motor stator is positioned inside the motor rotor, the motor stator is of a hollow structure, the bottom of the motor stator is provided with the optical transmitting and receiving electric control board, and the optical transmitting and receiving electric control board and the motor stator are fixed on a shell of a radar together; the rotating mechanism is arranged on a motor rotor of the hollow motor, and the lower end of the optical mechanism penetrates through the hollow part of the hollow motor and is fixed on the supporting shaft; the utility model provides a laser radar scanning device based on hollow motor, which can realize 360-degree scanning of radar under the premise that the transmitting and receiving components of the radar are fixed; the weight of the motor rotor can be reduced, and the radar structure is simplified.
Description
Technical Field
The utility model relates to a laser radar scanning device based on cavity motor belongs to laser radar scanning device technical field.
Background
The laser radar is a radar system that detects a characteristic amount such as a position and a velocity of a target by emitting a laser beam. The working principle of the system is that a detection signal (laser beam) is transmitted to a target, then a received signal (target echo) reflected from the target is compared with the transmitted signal, and after appropriate processing is carried out, relevant information of the target, such as target distance, azimuth, height, speed, attitude, even shape and other parameters, can be obtained, so that the targets such as airplanes, missiles and the like are detected, tracked and identified.
The existing laser radar scanning device based on motor rotating scanning is divided into two types:
the other is that transmission and receiving component all are fixed, install 45 speculum on motor rotor, and the transmission light is 90 outgoing of 45 speculum deflection, drives 45 speculum rotation through the motor, realizes the scanning. The scanning motor mostly adopts a single-phase or three-phase micro motor, and the support and the power supply of the motor are realized by utilizing an independent mechanical and circuit structure. In the scheme, 360-degree full-angle scanning cannot be realized due to the support of the motor and the shielding of a power supply structure;
the other scheme is that the transmitting and receiving components are arranged on a rotor of the motor and rotate along with the motor rotor, the motor rotor has heavy bearing weight, high-speed scanning is not easy to realize, a specific structure is required to be introduced to ensure power transmission and communication between the motor rotor and the stator for ensuring power supply of the transceiver module and data receiving communication, the complexity of the system is increased, and the reliability of the radar is reduced.
In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model provides a laser radar scanning device based on a hollow motor, aiming at the defects in the background technology, which can realize 360-degree scanning of the radar on the premise that the transmitting and receiving components of the radar are fixed; the weight of the motor rotor can be reduced, and the radar structure is simplified.
For solving the technical problem, the utility model discloses a following technical scheme:
a laser radar scanning device based on a hollow motor comprises a rotating mechanism, an optical mechanism, a transfer shaft and an optical transmitting and receiving electric control board; the motor also comprises a hollow motor;
the hollow motor comprises a motor rotor and a motor stator, and the motor stator is positioned inside the motor rotor; the motor stator is of a hollow structure;
the bottom of the motor stator is provided with an optical transmitting and receiving electric control plate, and the optical transmitting and receiving electric control plate and the motor stator are fixed on a shell of the radar together;
the rotating mechanism is arranged on a motor rotor of the hollow motor;
the lower end of the optical mechanism penetrates through the hollow part of the hollow motor and is fixed on the supporting shaft.
Furthermore, the rotating mechanism comprises a reflecting mirror and a light-transmitting cylinder, the reflecting mirror and the light-transmitting cylinder are fixed on the motor rotor through a rotating shaft seat and rotate together with the motor rotor to realize scanning.
Further, the included angle between the reflector and the axis of the motor rotor is 45 degrees.
Further, a motor fixing plate and a supporting shaft which are arranged up and down are mounted outside the motor rotor.
Further, a motor bearing is installed between the motor rotor and the motor fixing plate, and the motor bearing is used for realizing rotary connection.
Furthermore, the optical mechanism is fixedly connected with the supporting shaft through a transfer shaft; the supporting shaft is fixed in the machine shell.
Furthermore, the rotating mechanism, the optical mechanism, the hollow motor, the transfer shaft and the optical transmitting and receiving electric control board are all arranged in the inner cavity of the shell.
The utility model adopts the above technical scheme after, compare with prior art, have following advantage:
the motor rotor in the utility model is designed into a hollow structure, the motor stator of the hollow structure is fixedly connected with the light path transmitting and receiving device, the light path transmitting and receiving device and the motor stator are fixed in the shell of the radar together, and the light path transmitting and receiving device realizes the transmission and the reception of the light path through the motor stator of the hollow structure;
the reflecting mirror and the light-transmitting cylinder in the utility model are fixed on the motor rotor through the rotating shaft seat and rotate together with the motor rotor to realize scanning;
the utility model realizes 360-degree scanning of the radar by selecting a specific motor structure and a return light path on the premise that the light path transmitting and receiving device is fixed;
the invention realizes the fixation of the optical path transmitting and receiving device, reduces the weight of the rotor, and simplifies the radar structure at the same time, so that the scanning can be carried out at 360 degrees.
The present invention will be described in detail with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a front view of the structure of the present invention;
fig. 2 is a top view of the structure of the present invention;
fig. 3 is a cross-sectional view at a-a in fig. 1.
In the figure, 1-a machine shell, 2-a rotating mechanism, 21-a reflector, 22-a light-transmitting cylinder, 3-an optical mechanism, 4-a transfer shaft, 5-a hollow motor, 51-a motor rotor, 52-a motor stator, 53-a motor bearing, 54-a motor fixing plate, 6-a rotating shaft seat, 7-a support shaft and 8-an optical transmitting and receiving electric control plate.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1-3 together, the utility model provides a laser radar scanning device based on hollow motor, including slewing mechanism 2, optical mechanism 3, hollow motor 5, adapter shaft 4 and optical transmission receive automatically controlled board 8.
The turning mechanism 2 is mounted on a motor rotor 51 of the hollow motor 5.
The rotating mechanism 2 comprises a reflector 21 and a light-transmitting cylinder 22, the reflector 21 and the light-transmitting cylinder 22 are fixed on a motor rotor 51 through a rotating shaft seat 6 and rotate together with the motor rotor 51 to realize scanning.
The angle between the reflector 21 and the axis of the motor rotor 51 is 45 degrees.
The hollow motor 5 includes a motor rotor 51 and a motor stator 52, and the motor stator 52 is located inside the motor rotor 51.
The motor stator 52 has a hollow structure.
The motor rotor 51 is externally provided with a motor fixing plate 54 and a support shaft 7 which are arranged up and down.
A motor bearing 53 is arranged between the motor rotor 51 and the motor fixing plate 54, and the motor bearing 53 is used for realizing rotary connection.
The lower end of the optical mechanism 3 is arranged in the hollow position of the hollow motor 5 in a penetrating way and is fixed on the supporting shaft 7.
The optical mechanism 3 is fixedly connected with a supporting shaft 7 through a transfer shaft 4; the support shaft 7 is fixed in the housing 1.
The bottom of the motor stator 52 is provided with an optical transmitting and receiving electric control board 8, and the optical transmitting and receiving electric control board 8 and the motor stator 52 are fixed on the machine shell 1 of the radar together;
the optical transmitting and receiving electric control board 8 can pass through the hollow part of the hollow motor 5, thereby realizing the transmitting and receiving of the light path.
The rotating mechanism 2, the optical mechanism 3, the hollow motor 5, the adapter shaft 4 and the optical transmitting and receiving electric control board 8 are all arranged in the inner cavity of the machine shell 1.
The utility model discloses a concrete theory of operation:
in the utility model, the optical transmitting and receiving electric control board 8 is fixed at the bottom of the motor stator 52, the optical transmitting and receiving electric control board 8 and the motor stator 52 are fixed on the casing 1 of the radar together, and the optical transmitting and receiving electric control board 8 realizes the transmission and the reception of the light path through the motor stator 52 with a hollow structure;
the optical mechanism 3 is arranged in the hollow position of the hollow motor 5 in a penetrating way and is fixed on the supporting shaft 7;
the rotating mechanism 2 is fixed on the motor rotor 51 and rotates with the motor rotor 51 to realize scanning.
The foregoing is illustrative of the best mode of the invention, and details not described herein are within the common general knowledge of a person of ordinary skill in the art. The protection scope of the present invention is subject to the content of the claims, and any equivalent transformation based on the technical teaching of the present invention is also within the protection scope of the present invention.
Claims (7)
1. A laser radar scanning device based on a hollow motor comprises a rotating mechanism (2), an optical mechanism (3), a transfer shaft (4) and an optical transmitting and receiving electric control board (8); the method is characterized in that: also comprises a hollow motor (5);
the hollow motor (5) comprises a motor rotor (51) and a motor stator (52), and the motor stator (52) is positioned inside the motor rotor (51); the motor stator (52) is of a hollow structure;
an optical transmitting and receiving electric control board (8) is mounted at the bottom of the motor stator (52), and the optical transmitting and receiving electric control board (8) and the motor stator (52) are fixed on a shell (1) of the radar together;
the rotating mechanism (2) is arranged on a motor rotor (51) of the hollow motor (5);
the lower end of the optical mechanism (3) penetrates through the hollow part of the hollow motor (5) and is fixed on the supporting shaft (7).
2. A hollow motor based lidar scanning device of claim 1, wherein: the rotating mechanism (2) comprises a reflecting mirror (21) and a light-transmitting cylinder (22), the reflecting mirror (21) and the light-transmitting cylinder (22) are fixed on a motor rotor (51) through a rotating shaft seat (6) and rotate together with the motor rotor (51) to realize scanning.
3. A hollow motor based lidar scanning device of claim 2, wherein: the included angle between the reflector (21) and the axis of the motor rotor (51) is 45 degrees.
4. A hollow motor based lidar scanning device of claim 1, wherein: and a motor fixing plate (54) and a support shaft (7) which are vertically arranged are arranged outside the motor rotor (51).
5. A hollow motor based lidar scanning device of claim 4, wherein: a motor bearing (53) is installed between the motor rotor (51) and the motor fixing plate (54), and the motor bearing (53) is used for realizing rotary connection.
6. A hollow motor based lidar scanning device of claim 1, wherein: the optical mechanism (3) is fixedly connected with the supporting shaft (7) through the transfer shaft (4); the supporting shaft (7) is fixed in the machine shell (1).
7. A hollow motor based lidar scanning device of claim 1, wherein: the rotating mechanism (2), the optical mechanism (3), the hollow motor (5), the transfer shaft (4) and the optical transmitting and receiving electric control board (8) are all arranged in the inner cavity of the machine shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121339776.8U CN213715462U (en) | 2021-06-17 | 2021-06-17 | Laser radar scanning device based on hollow motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121339776.8U CN213715462U (en) | 2021-06-17 | 2021-06-17 | Laser radar scanning device based on hollow motor |
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| Publication Number | Publication Date |
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| CN213715462U true CN213715462U (en) | 2021-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121339776.8U Active CN213715462U (en) | 2021-06-17 | 2021-06-17 | Laser radar scanning device based on hollow motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113777617A (en) * | 2021-09-13 | 2021-12-10 | 广州中海达卫星导航技术股份有限公司 | Scanning device and laser radar system |
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2021
- 2021-06-17 CN CN202121339776.8U patent/CN213715462U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113777617A (en) * | 2021-09-13 | 2021-12-10 | 广州中海达卫星导航技术股份有限公司 | Scanning device and laser radar system |
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