CN218917625U

CN218917625U - 360 degree laser radar mounting structure

Info

Publication number: CN218917625U
Application number: CN202222683371.7U
Authority: CN
Inventors: 徐彬; 朱天凤; 王丽; 罗海燕; 钱鹏; 周峰
Original assignee: Jiangxi Shangke Jixing Optoelectronic Technology Co ltd
Current assignee: Jiangxi Shangke Jixing Optoelectronic Technology Co ltd
Priority date: 2022-10-12
Filing date: 2022-10-12
Publication date: 2023-04-25
Anticipated expiration: 2032-10-12

Abstract

The utility model relates to a 360-degree laser radar mounting structure which comprises a main control unit board, a light receiving and transmitting unit, a motor unit, a base and a window, wherein the main control unit board is fixed in the base, and the light receiving and transmitting unit is mounted on the main control unit board. The light receiving and transmitting unit comprises a shell, a transmitting tube, a receiving tube and a second 45-degree reflecting mirror, wherein the transmitting tube, the receiving tube and the second 45-degree reflecting mirror are arranged in the shell, the focusing mirror is arranged at the top end of the shell, and the motor unit comprises a hollow shaft motor, a first 45-degree reflecting mirror, a right-angle bent tube, a collimating mirror, a code disc and a photoelectric detector. The window is installed in the outside of motor unit, and the bottom of window is placed on the base, and window and base are with motor unit, transceiver unit, main control unit board from last parcel down. The utility model is assembled by the main control unit board, the light receiving and emitting unit, the motor unit and the base, each unit is independent, the window is arranged at the upper end of the base, the disassembly and the maintenance are convenient, and the manufacturing cost of the product is reduced.

Description

360 degree laser radar mounting structure

Technical Field

The utility model relates to a 360-degree laser radar mounting structure with a flexible structure, and belongs to the technical field of laser radars.

Background

Lidar is an advanced detection method combining laser technology with modern photoelectric detection technology. The system consists of a transmitting system, a receiving system, information processing and the like. At present, the laser radar is widely applied to the fields of security protection, environment mapping, robot navigation, obstacle avoidance and the like. The larger the range that the laser radar can scan, the more information that is collected, and the more excellent the performance. 360 degree laser radar is favored because it enables full viewing coverage.

The existing 360-degree laser radar generally has three structural modes:

one is that the receiving and emitting units are arranged on the rotary platform, and the base and the rotary platform realize 360-degree scanning in a wireless power supply and wireless communication transmission mode. The structure has the advantages of complex implementation mode, higher cost, poor data reliability, unchanged maintenance and adjustment.

The other is to adopt a slip ring mode to realize 360-degree scanning. However, the abrasion condition of the slip ring easily occurs, so that the service life of the laser radar is seriously influenced, and meanwhile, the abrasion of the mechanical structure is likely to cause poor communication quality, so that the slip ring needs to be checked and replaced regularly.

And a hollow shaft motor mode is adopted, and 360 scanning is realized, but the whole window and the hollow shaft motor are packaged into a whole, so that the light adjustment is inconvenient, the disassembly and the maintenance are inconvenient, and the radar cost is high.

Therefore, there is a need to develop a lidar that has a simple structure, independent units, is convenient for adjustment and maintenance, has low cost, and can detect a target object in the 360 degree direction.

Disclosure of Invention

The utility model provides a 360-degree laser radar mounting structure, which aims to solve the problems in the prior art.

The technical proposal of the utility model comprises a main control unit board, a light receiving and transmitting unit, a motor unit, a base and a window, wherein the main control unit board is fixed in the base, the light receiving and transmitting unit is arranged on the main control unit board and comprises a shell, a transmitting tube, a receiving tube and a second 45-degree reflecting mirror which are arranged in the shell, a focusing mirror is arranged at the top end of the shell, the transmitting tube is arranged at the bottom center of the focusing mirror,

the motor unit comprises a hollow shaft motor, a first 45-degree reflecting mirror, a right-angle bent pipe, a collimating mirror, a code disc and a photoelectric detector, one end of the first 45-degree reflecting mirror is fixedly connected to a rotor of the hollow shaft motor, a corner of the right-angle bent pipe is fixedly connected to a mirror surface of the first 45-degree reflecting mirror, the collimating mirror is fixedly connected to a vertical pipe of the right-angle bent pipe, the vertical pipe of the right-angle bent pipe is located above the center of a focusing mirror, the collimating mirror coincides with an optical axis of the focusing mirror, the code disc and the photoelectric detector are arranged on a stator of the hollow shaft motor, a window is arranged on the outer side of the motor unit, the bottom of the window is arranged on a base, and the window and the base wrap the motor unit, a light receiving unit and a main control unit board from top to bottom.

Further, the center of the focusing lens is provided with a sleeve, a vertical pipe of the right-angle bent pipe is inserted into the sleeve, and when the hollow shaft motor works, the right-angle bent pipe rotates around the sleeve.

Further, two clamping grooves are fixedly formed in the upper surface of the main control unit board, a light-emitting unit pin and a light-receiving unit pin are fixedly arranged at the bottom of the shell, and the light-receiving unit pin and the light-emitting unit pin are oppositely inserted in the clamping grooves.

Further, the center of the focusing lens is provided with a hole, and the sleeve is arranged in the hole in the center of the focusing lens.

Further, the optical axis of the focusing lens coincides with the rotation center axis of the hollow shaft motor.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model is assembled by the main control unit board, the light receiving and emitting unit, the motor unit and the base, each unit is independent, the window is arranged at the upper end of the base, the disassembly and the maintenance are convenient, and the manufacturing cost of the product is reduced.

Drawings

FIG. 1 is a schematic cross-sectional view of an embodiment of the present utility model.

Fig. 2 is a schematic structural diagram of a light receiving and transmitting unit according to the present utility model.

Fig. 3 is a schematic structural view of a motor unit according to the present utility model.

Fig. 4 is a schematic structural diagram of a main control unit board according to the present utility model.

Detailed Description

The utility model is described in further detail below with reference to the drawings and the specific examples. The objects, technical solutions and advantages of the present utility model will become more apparent from the following description. It should be noted that the described embodiments are preferred embodiments of the utility model, and not all embodiments.

Referring to fig. 1 to 4, a 360-degree laser radar mounting structure comprises a main control unit board 1, a light receiving and transmitting unit 2, a motor unit 3, a base 4 and a window 5, wherein the main control unit board 1 is fixed in the base 4.

The light receiving and transmitting unit 2 is arranged on the main control unit board 1, the light receiving and transmitting unit 2 comprises a shell 20, a transmitting tube 21, a receiving tube 22 and a second 45-degree reflecting mirror 25 which are arranged in the shell, a focusing mirror 23 is arranged at the top end of the shell, and the transmitting tube 21 is arranged at the bottom center of the focusing mirror 23. Referring to fig. 2 and fig. 4, preferably, two clamping grooves 11 are fixedly formed in the upper surface of the main control unit board 1, a light emitting unit pin 2a and a light receiving unit pin 2b are fixedly arranged at the bottom of the housing 2a, and the light receiving unit pin and the light emitting unit pin are inserted into the clamping grooves 11, so that the assembly between the light receiving unit 2 and the main control unit board 1 is facilitated. Preferably, the center of the focusing lens 23 is provided with a sleeve 24, and the vertical tube of the right-angle elbow 32 is inserted into the sleeve 24, and the right-angle elbow 32 can rotate around the sleeve when the hollow shaft motor 34 is operated. As a preferred mounting means, the focusing lens 23 is centrally perforated and the sleeve is mounted in a hole in the center of the focusing lens.

The motor unit comprises a hollow shaft motor 34, a first 45-degree reflecting mirror 31, a right-angle bent pipe 32, a collimating mirror 33, a code disc and a photoelectric detector 35, one end of the first 45-degree reflecting mirror 31 is fixedly connected to a rotor of the hollow shaft motor, a corner of the right-angle bent pipe 32 is fixedly connected to a mirror surface of the first 45-degree reflecting mirror 31, the collimating mirror 33 is fixedly connected to a vertical pipe of the right-angle bent pipe 32, the vertical pipe of the right-angle bent pipe 32 is located above the center of a focusing mirror 23, the collimating mirror coincides with an optical axis of the focusing mirror, and the code disc and the photoelectric detector 35 are mounted on a stator of the hollow shaft motor 34. The hollow shaft motor 34 is installed in the base 4 through two vertical support rods 30 fixedly connected to the bottom. The optical axis of the focusing lens coincides with the rotational center axis of hollow shaft motor 34.

The window 5 is arranged on the outer side of the motor unit, and the bottom of the window 5 is placed on the base. The window 5 and the base 4 wrap the motor unit 3, the light receiving and emitting unit 2 and the main control unit board 1 from top to bottom.

The above description is merely illustrative of the preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model, and it is obvious that any person skilled in the art can easily think of alternatives or modifications based on the above embodiments to obtain other embodiments, which are all covered by the scope of the present utility model.

Claims

1. 360 degree laser radar mounting structure, its characterized in that:

comprises a main control unit board, a light receiving and emitting unit, a motor unit, a base and a window, wherein the main control unit board is fixed in the base,

the light receiving and transmitting unit is arranged on the main control unit board and comprises a shell, a transmitting tube, a receiving tube and a second 45-degree reflecting mirror which are arranged in the shell, a focusing mirror is arranged at the top end of the shell, the transmitting tube is arranged at the center of the bottom of the focusing mirror,

2. The 360 degree lidar mounting structure of claim 1, wherein:

the center of the focusing lens is provided with a sleeve, a vertical pipe of the right-angle bent pipe is inserted into the sleeve, and when the hollow shaft motor works, the right-angle bent pipe rotates around the sleeve.

3. The 360 degree lidar mounting structure of claim 1, wherein:

the main control unit board is fixedly provided with two clamping grooves on the upper surface, the bottom of the shell is fixedly provided with a light emitting unit pin and a light receiving unit pin, and the light receiving unit pin and the light emitting unit pin are oppositely inserted in the clamping grooves.

4. The 360 degree lidar mounting structure of claim 1, wherein:

the center of the focusing lens is provided with a hole, and the sleeve is arranged in the hole in the center of the focusing lens.

5. The 360 degree lidar mounting structure of claim 1, wherein:

the optical axis of the focusing lens coincides with the rotation central axis of the hollow shaft motor.