A rotating lidar device

Abstract

This utility model relates to the technical field of lidar, and discloses a rotating lidar device, including a lidar box. A rotating mechanism is fixedly installed inside the lidar box, and a fixing mechanism is fixedly installed at the bottom of the lidar box. The rotating mechanism includes a base, with a first motor fixedly installed on the inner surface of the base. The output end of the first motor is fixedly installed with a first rotating shaft via a reducer. The rotating mechanism also includes a rotating box, the inner surface of which is fixedly connected to the outer surface of the first rotating shaft via a locking pin. In this rotating lidar device, the first motor drives the rotating box to rotate via the first rotating shaft, then a second motor drives the second rotating shaft to rotate, which in turn drives the lidar to rotate, enabling the lidar to rotate at multiple angles. A third motor drives a threaded shaft to rotate, which in turn drives a rotating rod to move via a moving plate, and the rotating rod drives a rotating frame to tilt and adjust.

Description

Technical Field

[0001] This utility model relates to the technical field of lidar, and in particular to a rotating lidar device. Background Technology

[0002] With the rapid development of LiDAR technology, the application fields of LiDAR are gradually expanding. Rotating LiDAR, due to its high accuracy and wide detection range, is receiving increasing attention and application from various industries. A rotating LiDAR is a high-precision sensor that detects the surrounding environment by rotating and emitting a laser beam and receiving reflected signals. Its core components include a laser emitter, a rotating scanning module, a receiver, and a data processing unit. During operation, it achieves a 360° horizontal field of view scan through high-speed rotation (typically 10-20Hz), and measures distance using the laser time-of-flight (ToF) principle to generate point cloud data of the surrounding environment. It features long detection range (up to 200 meters or more), high ranging accuracy (centimeter-level), and strong anti-interference capabilities, and is widely used in autonomous driving, robot navigation, and 3D mapping. A typical example is Velodyne's HDL series, whose multi-beam structure (such as 16-line, 32-line, and 64-line) can achieve layered scanning in the vertical direction, balancing wide-angle coverage and high resolution.

[0003] Existing lidar typically uses a single horizontal rotation axis, which limits the scanning range and flexibility. Furthermore, lidar cannot meet the requirements of cement loading systems for scanning the outline of the truck bed, and there is a market demand for a larger scanning range and more flexible scanning angles. Utility Model Content

[0004] In view of the problems that existing rotating lidars can only rotate in a single horizontal direction, have a limited scanning range, and have a fixed installation direction, making it impossible to install the lidar in any direction, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a rotating lidar device, which aims to enable the lidar to scan in any horizontal direction while improving the flexibility of the lidar's installation mechanism.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a rotating lidar device, comprising a lidar box, wherein a rotating mechanism is fixedly installed in the inner cavity of the lidar box, and a fixing mechanism is fixedly installed at the bottom of the lidar box;

[0007] The rotating mechanism includes a base, on the inner surface of which a motor is fixedly mounted, and at the output end of the motor is a rotating shaft fixedly mounted via a reducer.

[0008] In a preferred embodiment of the rotating lidar device of this utility model, the rotating mechanism further includes a rotating box, the inner surface of which is fixedly connected to the outer surface of the first rotating shaft by a locking pin, and a rotating frame is fixedly installed on the top of the rotating box by an adjusting mechanism.

[0009] In a preferred embodiment of the rotating lidar device of this utility model, the rotating mechanism further includes a second motor, the right side of which is fixedly connected to the outer surface of the rotating frame, and the output end of the second motor is fixedly mounted with a second rotating shaft via a reducer. The right end of the second rotating shaft passes through the rotating frame and extends to the outside of the rotating frame, and a lidar is fixedly mounted on the outer surface of the second rotating shaft.

[0010] In a preferred embodiment of the rotating lidar device of this utility model, the fixing mechanism includes a fixing plate, the top of the fixing plate is fixedly connected to the bottom of the base, a first fixing hole is formed through the top of the fixing plate, and a second fixing hole is formed through the outer surface of the fixing plate.

[0011] In a preferred embodiment of the rotating lidar device of this utility model, the adjustment mechanism includes a No. 3 motor, the bottom of which is fixedly connected to the bottom of the inner cavity of the rotating box, and a threaded shaft is fixedly installed on the output end of the No. 3 motor through a reducer. A movable plate is threadedly installed on the outer surface of the threaded shaft.

[0012] In a preferred embodiment of the rotating lidar device of this utility model, the adjustment mechanism further includes a rotating hole, which is opened through the top of the rotating frame. A rotating rod is fixedly installed on the inner surface of the rotating hole, and the opposite ends of the two rotating rods are rotatably connected to the outer surface of the moving plate.

[0013] Compared with the prior art, the present invention has at least the following beneficial effects:

[0014] 1. This utility model increases the degree of freedom by adding a rotating structure, thereby improving the scanning range and flexibility of the lidar. Through the cooperation of motor 1 and rotating shaft 1 with rotating box and motor 3, motor 3 and threaded shaft with moving plate and rotating rod, rotating rod and rotating frame with motor 2 and rotating shaft 2, and rotating shaft 2 with lidar, the lidar can be rotated in different directions and angles, thus improving the lidar's scanning range and more flexible scanning angle.

[0015] 2. This utility model, through the cooperation of the fixing plate and the first fixing hole with the second fixing hole and the base, enables the radar installation structure to be installed from the side or from the bottom, making the installation structure of the rotating lidar flexible. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the rotating lidar device of this utility model;

[0017] Figure 2 This is a cross-sectional view of the radar box and rotating box of the rotating lidar device of this utility model;

[0018] Figure 3 This is a cross-sectional view of the overall structure of the rotating lidar device of this utility model;

[0019] Figure 4 This is a partial cross-sectional view of the rotating frame and adjustment mechanism of the rotating lidar device of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Radar box; 2. Rotating mechanism; 21. Base; 22. Motor 1; 23. Rotating shaft 1; 24. Rotating box; 25. Rotating frame; 26. Motor 2; 27. Rotating shaft 2; 28. LiDAR; 29. ​​Locking pin; 3. Fixing mechanism; 31. Fixing plate; 32. Fixing hole 1; 33. Fixing hole 2; 4. Adjusting mechanism; 41. Motor 3; 42. Threaded shaft; 43. Moving plate; 44. Rotating hole; 45. Rotating rod. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Example 1

[0024] Reference Figures 1-3 The first embodiment of this utility model provides a rotating lidar device, which includes a lidar box 1, a rotating mechanism 2 fixedly installed in the inner cavity of the lidar box 1, and a fixing mechanism 3 fixedly installed at the bottom of the lidar box 1.

[0025] The rotating mechanism 2 includes a base 21, on the inner surface of which a motor 22 is fixedly mounted, and at the output end of the motor 22 a rotating shaft 23 is fixedly mounted via a reducer.

[0026] The rotating mechanism 2 also includes a rotating box 24. The inner surface of the rotating box 24 is fixedly connected to the outer surface of the first rotating shaft 23 by a locking pin 29. The top of the rotating box 24 is fixedly mounted with a rotating frame 25 by an adjusting mechanism 4.

[0027] The rotating mechanism 2 also includes a second motor 26. The right side of the second motor 26 is fixedly connected to the outer surface of the rotating frame 25. The output end of the second motor 26 is fixedly mounted with a second rotating shaft 27 via a reducer. The right end of the second rotating shaft 27 passes through the rotating frame 25 and extends to the outside of the rotating frame 25. A lidar 28 is fixedly mounted on the outer surface of the second rotating shaft 27.

[0028] During use, when the lidar 28 needs to adjust its angle, motor 22 drives the rotating box 24 to rotate via rotating shaft 23, and then drives rotating shaft 27 via motor 26. Rotating shaft 27 drives lidar 28 to rotate, enabling lidar 28 to rotate at multiple angles.

[0029] Example 2

[0030] Reference Figures 1-4 This is the second embodiment of the present utility model. The difference between this embodiment and the first embodiment is that the fixing mechanism 3 includes a fixing plate 31. The top of the fixing plate 31 is fixedly connected to the bottom of the base 21. A first fixing hole 32 is opened through the top of the fixing plate 31, and a second fixing hole 33 is opened through the outer surface of the fixing plate 31.

[0031] The adjustment mechanism 4 includes a third motor 41. The bottom of the third motor 41 is fixedly connected to the bottom of the inner cavity of the rotating box 24. The output end of the third motor 41 is fixedly mounted with a threaded shaft 42 through a reducer. A movable plate 43 is threadedly mounted on the outer surface of the threaded shaft 42.

[0032] The adjustment mechanism 4 also includes a rotating hole 44, which is opened through the top of the rotating frame 25. A rotating rod 45 is fixedly installed on the inner surface of the rotating hole 44, and the opposite ends of the two rotating rods 45 are rotatably connected to the outer surface of the moving plate 43.

[0033] During use, the mounting plate 31 of the rotating lidar is aligned with the fixed position, and then bolts are used to fix it through the first fixing hole 32 or the second fixing hole 33, so that the rotating lidar can be fixed from the bottom of the bottom mounting plate 31 or from the side. The threaded shaft 42 is rotated by the third motor 41, and the threaded shaft 42 drives the rotating rod 45 to move through the moving plate 43. The rotating rod 45 drives the rotating frame 25 to tilt and adjust.

[0034] The remaining structure is the same as that in Example 1.

[0035] Based on embodiments 1-2, the working principle of this utility model is as follows: The user first aligns the fixing plate 31 of the rotating laser radar to a fixed position, and then fixes it with bolts through the first fixing hole 32 or the second fixing hole 33, so that the rotating laser radar can be fixed from the bottom of the bottom fixing plate 31 or from the side. The threaded shaft 42 is rotated by the third motor 41, and the threaded shaft 42 moves the rotating rod 45 through the moving plate 43. The rotating rod 45 drives the rotating frame 25 to tilt and adjust. When the laser radar 28 needs to be adjusted, the first motor 22 drives the rotating box 24 to rotate through the first rotating shaft 23, and then drives the second rotating shaft 27 to rotate through the second motor 26. The second rotating shaft 27 drives the laser radar 28 to rotate, so that the laser radar 28 can rotate at multiple angles.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A rotating lidar device, comprising a lidar housing (1), characterized in that: A rotating mechanism (2) is fixedly installed inside the radar box (1), and a fixing mechanism (3) is fixedly installed at the bottom of the radar box (1). The rotating mechanism (2) includes a base (21), on the inner surface of the base (21) a No. 1 motor (22) is fixedly installed, and the output end of the No. 1 motor (22) is fixedly installed with a No. 1 rotating shaft (23) through a reducer.

2. The rotating lidar device according to claim 1, characterized in that: The rotating mechanism (2) also includes a rotating box (24), the inner surface of which is fixedly connected to the outer surface of the first rotating shaft (23) by a locking pin (29), and a rotating frame (25) is fixedly installed on the top of the rotating box (24) by an adjusting mechanism (4).

3. The rotating lidar device according to claim 1, characterized in that: The rotating mechanism (2) also includes a second motor (26), the right side of which is fixedly connected to the outer surface of the rotating frame (25). The output end of the second motor (26) is fixedly mounted with a second rotating shaft (27) via a reducer. The right end of the second rotating shaft (27) passes through the rotating frame (25) and extends to the outside of the rotating frame (25). A laser radar (28) is fixedly mounted on the outer surface of the second rotating shaft (27).

4. The rotating lidar device according to claim 1, characterized in that: The fixing mechanism (3) includes a fixing plate (31), the top of the fixing plate (31) is fixedly connected to the bottom of the base (21), a first fixing hole (32) is opened through the top of the fixing plate (31), and a second fixing hole (33) is opened through the outer surface of the fixing plate (31).

5. The rotating lidar device according to claim 2, characterized in that: The adjustment mechanism (4) includes a No. 3 motor (41), the bottom of which is fixedly connected to the bottom of the inner cavity of the rotating box (24). The output end of the No. 3 motor (41) is fixedly mounted with a threaded shaft (42) through a reducer. A movable plate (43) is threadedly mounted on the outer surface of the threaded shaft (42).

6. The rotating lidar device according to claim 2, characterized in that: The adjustment mechanism (4) also includes a rotating hole (44), which is opened through the top of the rotating frame (25). A rotating rod (45) is fixedly installed on the inner surface of the rotating hole (44), and the opposite ends of the two rotating rods (45) are rotatably connected to the outer surface of the moving plate (43).

Images