Laser radar transmitting device

Abstract

The utility model provides a laser radar transmitting device, which comprises a mounting plate provided with a transmitting assembly, and the transmitting assembly generates a laser beam; the base is arranged below the mounting plate; the first adjusting mechanism is arranged on the base and used for adjusting the posture of the transmitting assembly in the X-Z direction with the base as the center; the second adjusting mechanism is arranged on the first adjusting mechanism, and the second adjusting mechanism is connected with the bottom of the mounting plate so as to adjust the posture of the transmitting assembly relative to the X-Y direction with the base as the center. According to the utility model, through the cooperation of the first adjusting mechanism and the second adjusting mechanism, the transmitting assembly on the mounting plate is adjusted in multiple directions, and the periphery of the base is adjusted in multiple directions by taking the base as the center, so that the transmitting assembly can generate laser beams in multiple postures, and the coverage range of the transmitting assembly is wider.

Description

Technical Field

[0001] The utility model relates to the technical field of radar distance measuring devices, in particular to a laser radar transmitting device. Background Art

[0002] The laser radar transmitting device is an important component of the laser radar system. It generates a laser beam and then focuses or directs it to the desired direction through optical components. It is widely used in the fields of self-driving cars, drones, robot navigation, terrain mapping, industrial measurement, etc. A Chinese patent (publication number CN218886160U) discloses a laser transceiver structure device and a laser radar, which is composed of a first top plate, a U-shaped groove and a bearing plate to form a laser emission channel; however, such a setting cannot be adjusted in multiple directions according to the direction required. Therefore, the utility model proposes a laser radar transmitting device to improve the above problems. Utility Model Content

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the laser radar transmitting device in the prior art cannot be adjusted in multiple directions according to the direction of use, thereby providing a laser radar transmitting device.

[0004] In order to solve the above problems, the utility model provides a laser radar transmitting device, which includes:

[0005] A mounting plate, on which a transmitting assembly is disposed, and the transmitting assembly generates a laser beam;

[0006] A base, arranged below the mounting plate;

[0007] A first adjustment mechanism is provided on the base to adjust the posture of the launch assembly in the XZ direction with respect to the base as the center;

[0008] The second adjustment mechanism is arranged on the first adjustment mechanism, and the second adjustment mechanism is connected to the bottom of the mounting plate to adjust the posture of the transmitting component in the XY direction centered on the base.

[0009] Preferably, the first adjustment mechanism includes: a vertical plate, a pair of the vertical plates are arranged on the base opposite to each other, the bottom of the vertical plates are connected to the base, a fixed cylinder is arranged between the tops of the pair of vertical plates, rotating rings are respectively arranged on the tops of the vertical plates, and the fixed cylinders are respectively provided with rotating wheels near the two rotating rings, one end of the rotating wheel is respectively connected to the side wall of the fixed cylinder, and the other end of the rotating wheel is respectively rotatably connected to the two rotating rings.

[0010] Preferably, one of the rotating parts is provided with a mounting tube on its outer shell, a first motor is provided outside the mounting tube, an output shaft of the first motor rotatably passes through the mounting tube, a first rotating rod is provided inside the mounting tube, one end of the first rotating rod is connected to the output shaft of the first motor, and the other end of the first rotating rod is connected to the rotating wheel.

[0011] Preferably, the second adjustment mechanism includes: a fixing plate, which is arranged on the top of the fixing cylinder, and a gap is set between the fixing plate and the mounting plate. A second motor is also arranged in the fixing cylinder, and the second motor is connected to the bottom of the fixing cylinder. The output shaft of the second motor rotatably passes through the fixing plate and is connected to the bottom center of the mounting plate.

[0012] Preferably, the transmitting assembly comprises: a fixing seat, the fixing seat is arranged on the mounting plate and close to the outer side of the mounting plate, a laser transmitting tube is arranged on the fixing seat, and the laser transmitting tube is horizontally arranged on the top of the fixing seat.

[0013] Preferably, it also includes: an auxiliary optical element, which is arranged on the mounting plate and slidably connected to the mounting plate, and an auxiliary adjustment mechanism is also arranged between the mounting plate and the auxiliary optical element to change the distance between the auxiliary optical element and the fixing seat.

[0014] Preferably, the auxiliary adjustment mechanism comprises a pair of slide rails, the pair of slide rails are arranged in parallel on the mounting plate, the slide rails extend from the fixing seat to a side of the mounting plate away from the fixing seat, the slide rails are respectively provided with sliders, the sliders are respectively slidably connected with the slide rails, the pair of sliders are provided with adjustment plates, the adjustment plates are provided with card slots, and the auxiliary optical element is card-engaged with the card slots;

[0015] A screw is also arranged in parallel between a pair of the slide rails, an adjustment hole is arranged on the adjustment plate, the screw is screwed to the adjustment hole, supports are respectively arranged on the mounting plates near both ends of the screw, the two ends of the screw are respectively rotatably connected to the supports, a mounting hole is also arranged at the bottom of the fixing seat, a third motor is arranged in the mounting hole, and the output shaft of the third motor is connected to one end of the screw near the fixing seat.

[0016] The laser radar transmitting device provided by the utility model has the following beneficial effects:

[0017] 1. The utility model adjusts the emitting assembly on the mounting plate in multiple directions through the cooperation of the first adjusting mechanism and the second adjusting mechanism. With the base as the center, the emitting assembly can be adjusted in multiple directions around the base, so that the emitting assembly can generate laser beams in multiple postures, making the coverage range of the emitting assembly wider;

[0018] 2. The utility model also changes the focal length of the laser emitting tube through the auxiliary optical element to change the distance of the laser beam emission. The auxiliary optical element and the mounting plate can slide and adjust to change the distance between the auxiliary optical element and the laser emitting tube, and correspondingly realize the zoom of the auxiliary optical element to change the distance of the laser emitting tube emitting the light beam.

[0019] 3. The utility model also realizes the screw transmission through the forward and reverse rotation of the third motor, the adjusting rod and the screw are screwed together, and the sliders at the bottom of both ends of the adjusting plate slide on the slide rails to adjust the distance of the auxiliary optical element relative to the fixed seat and change the distance of its laser beam irradiation. The adjusting plate is equipped with a card slot, and the auxiliary optical element is card-connected with the card slot to realize that different types of auxiliary optical elements can be replaced and the distance of laser beam emission can be changed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the general assembly of the utility model;

[0021] Figure 2 This is a front view structural schematic diagram of the utility model;

[0022] Figure 3 This is a schematic diagram of the installation of the second motor structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the installation of the auxiliary optical element structure of the utility model.

[0024] The reference numerals are as follows:

[0025] 1. Mounting plate; 2. Emitting assembly; 3. Base; 4. Vertical plate; 5. Fixed cylinder; 6. Rotating ring; 7. Rotating wheel; 8. Mounting cylinder; 9. First motor; 10. Fixed plate; 11. Second motor; 12. Fixed seat; 13. Laser emitting tube; 14. Auxiliary optical element; 15. Slide rail; 16. Slider; 17. Adjustment plate; 18. Screw; 19. Support; 20. Third motor. DETAILED DESCRIPTION

[0026] like Figure 1-4 As shown, the utility model provides a laser radar transmitting device, which includes:

[0027] A mounting plate 1, on which a transmitting assembly 2 is disposed, and the transmitting assembly 2 generates a laser beam;

[0028] A base 3 is arranged below the mounting plate 1;

[0029] A first adjustment mechanism is provided on the base 3 to adjust the posture of the launch assembly 2 in the XZ direction with respect to the base 3 as the center;

[0030] The second adjustment mechanism is arranged on the first adjustment mechanism, and the second adjustment mechanism is connected to the bottom of the mounting plate 1 to adjust the posture of the transmitting assembly 2 relative to the XY direction of the center of the base 3. Figure 1-4 As shown, a laser radar transmitting device includes a mounting plate 1, a base 3, a first adjustment mechanism and a second adjustment mechanism, wherein the mounting plate 1 is used to place the transmitting component 2, and in use, the plane where the mounting plate 1 is located can be used as a calibration surface, and the calibration surface can be used as the plane where the current transmitting component 2 transmits the laser beam, and the current posture of the entire laser radar transmitting device is obtained through the calibration surface, wherein the base 3 is used to support the entire device, and corresponding screw holes can be set at the bottom of the base 3, and it is installed on other components that need to be used by bolts; wherein the first adjustment mechanism is installed on the base 3, and the posture of the transmitting component 2 is adjusted in the XZ direction relative to the center of the base 3, and the second adjustment mechanism is installed on the first adjustment mechanism, and the second adjustment mechanism is connected to the bottom of the transmitting mounting plate 1 to adjust the posture of the transmitting component 2 in the XY direction relative to the center of the base 3. Through the cooperation of the first adjustment mechanism and the second adjustment mechanism, the transmitting component 2 on the mounting plate 1 is adjusted in multiple directions, and the base 3 is used as the center. The base 3 is adjusted in multiple directions around the base 3, so that the transmitting component 2 can generate laser beams in a variety of postures, so that the coverage range of the transmitting component 2 is wider.

[0031] In some embodiments, the first adjustment mechanism includes: a vertical plate 4, a pair of the vertical plates 4 are arranged on the base 3, the bottom of the vertical plates 4 is connected to the base 3, a fixed cylinder 5 is arranged between the tops of the pair of vertical plates 4, a rotating ring 6 is arranged on the top of each of the vertical plates 4, and a rotating wheel 7 is arranged near each of the two rotating rings 6 on each of the fixed cylinders 5, one end of each of the rotating wheels 7 is connected to the side wall of the fixed cylinder 5, and the other end of each of the rotating wheels 7 is rotatably connected to each of the two rotating rings 6. Figure 1-4 As shown, the vertical plate 4 and the base 3 can be connected by bolts or clamps, a through hole for installing the rotating ring 6 is set on the top of the vertical plate 4, the rotating ring 6 is installed in the through hole, the rotating wheel 7 is rotatably connected on the inner side of the rotating rod ring, and the rotating wheel 7 and the side wall of the fixed cylinder 5 can be connected by bolts or clamps, so that the fixed cylinder 5 can rotate through the rotating wheel 7 and the rotating ring 6 to adjust the posture of the launching assembly 2 in the XZ direction centered on the base 3.

[0032] In some embodiments, one of the rotating rings is provided with a mounting tube 8, a first motor 9 is provided outside the mounting tube 8, an output shaft of the first motor 9 rotatably passes through the mounting tube 8, a first rotating rod is provided inside the mounting tube 8, one end of the first rotating rod is connected to the output shaft of the first motor 9, and the other end of the first rotating rod is connected to the rotating wheel 7. Figure 1-4 As shown, the mounting tube 8 is connected to the adjacent vertical plate 4, which may be in the form of a bolt connection or a clamping connection. The mounting tube 8 is connected to the rotating part, and the first motor 9 is mounted on the outside of the mounting tube 8. The connection may be a bolt connection. The first motor 9 is commercially available. The output shaft of the first motor 9 rotatably passes through the mounting tube 8. The output shaft of the first motor 9 and the first rotating rod are connected by a coupling. The rotation of the first motor 9 drives the first rotating rod to transmit the rotating wheel 7, so that the rotating wheel 7 rotates in the rotating ring 6, so that the rotating wheels 7 on both sides of the entire fixed tube 5 rotate relative to the rotating ring 6. The first motor 9 is a forward and reverse motor, and the rotation direction determines the swing direction of the fixed tube 5, so as to adjust the posture of the launching assembly 2 in the XZ direction with respect to the base 3 as the center.

[0033] In some embodiments, the second adjustment mechanism includes: a fixing plate 10, the fixing plate 10 is arranged on the top of the fixing cylinder 5, the fixing plate 10 is spaced apart from the mounting plate 1, a second motor 11 is also arranged in the fixing cylinder 5, the second motor 11 is connected to the bottom of the fixing cylinder 5, and the output shaft of the second motor 11 rotatably passes through the fixing plate 10 and is connected to the bottom center of the mounting plate 1. Figure 1-4 As shown, the fixing plate 10 is installed on the top of the fixing cylinder 5, which can be in the form of bolt connection or clamping. A gap is left between the fixing plate 10 and the mounting plate 1 to ensure that the mounting plate 1 can rotate relative to the fixing plate 10. The second motor 11 is commercially available. The second motor 11 is connected to the bottom of the fixing cylinder 5, and the connection method can be bolt connection. The output shaft of the second motor 11 transmits the transmission to the mounting plate 1, driving the mounting plate 1 to rotate, so as to realize the posture adjustment of the launching assembly 2 in the XY direction relative to the center of the base 3.

[0034] In some embodiments, the emitting assembly 2 includes: a fixing seat 12, the fixing seat 12 is arranged on the mounting plate 1 and close to the outer side of the mounting plate 1, and a laser emitting tube 13 is arranged on the fixing seat 12, and the laser emitting tube 13 is horizontally arranged on the top of the fixing seat 12. Figure 1-4As shown, the laser emitting tube 13 of the emitting assembly 2 is commercially available to emit a laser beam. The fixing seat 12 is installed near the outer side of the mounting plate 1, which can be in the form of a bolt connection. The laser emitting tube 13 is horizontally installed on the top of the fixing seat 12, which can be in the form of a clip connection. By setting a corresponding block at the bottom of the laser emitting tube 13 and a corresponding slide groove at the top of the fixing seat 12, the block slides in the slide groove, so that the laser emitting assembly 2 is installed on the fixing seat 12, and its posture is adjusted in multiple directions through the first adjustment mechanism and the second adjustment mechanism.

[0035] In some embodiments, it further comprises: an auxiliary optical element 14, which is disposed on the mounting plate 1 and is slidably connected to the mounting plate 1, and an auxiliary adjustment mechanism is also disposed between the mounting plate 1 and the auxiliary optical element 14 to change the distance between the auxiliary optical element 14 and the fixing seat 12. Figure 1-4 As shown, the auxiliary optical element 14 is commercially available. On the basis of the laser emitting tube 13, the focal length is changed by the auxiliary optical element 14 to change the distance of the laser beam emission. The auxiliary optical element 14 and the mounting plate 1 can slide and adjust to change the distance between the auxiliary optical element 14 and the laser emitting tube 13, and the auxiliary optical element 14 can be zoomed accordingly to change the distance of the light beam emitted by the laser emitting tube 13.

[0036] In some embodiments, the auxiliary adjustment mechanism includes a pair of slide rails 15, the pair of slide rails 15 are arranged in parallel on the mounting plate 1, the slide rails 15 extend from the fixing seat 12 to the side of the mounting plate 1 away from the fixing seat 12, the slide rails 15 are respectively provided with sliders 16, the sliders 16 are respectively slidably connected to the slide rails 15, the pair of sliders 16 are provided with adjustment plates 17, the adjustment plates 17 are provided with card slots, and the auxiliary optical element 14 is card-engaged with the card slots;

[0037] A screw 18 is also arranged in parallel between the pair of slide rails 15, an adjustment hole is arranged on the adjustment plate 17, the screw 18 is screwed to the adjustment hole, and supports 19 are respectively arranged on the mounting plate 1 near both ends of the screw 18, and both ends of the screw 18 are rotatably connected to the supports 19, and a mounting hole is also arranged at the bottom of the fixing seat 12, a third motor 20 is arranged in the mounting hole, and the output shaft of the third motor 20 is connected to one end of the screw 18 near the fixing seat 12. Figure 1-4As shown, the slide rail 15 and the mounting plate 1 can be bolted, the third motor 20 can be bolted in the mounting hole, the third motor 20 is commercially available, the output shaft of the third motor 20 and the screw 18 can be connected by a coupling, the third motor 20 can realize the transmission of the screw 18 by forward and reverse rotation, the adjusting rod and the screw 18 are screwed, and the sliders 16 at the bottom of both ends of the adjusting plate 17 slide on the slide rail 15 to realize the adjustment of the distance of the auxiliary optical element 14 relative to the fixed seat 12, thereby changing the distance of its laser beam irradiation, wherein a card slot is installed on the adjusting plate 17, and the auxiliary optical element 14 is card-connected with the card slot, so that it can replace different types of auxiliary optical elements 14 and change the distance of laser beam emission.

[0038] The above is only a preferred embodiment of the utility model, and is not intended to limit the utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the utility model should be included in the protection scope of the utility model. The above is only a preferred implementation of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the utility model, and these improvements and variations should also be regarded as the protection scope of the utility model.

Claims

1. A laser radar transmitting device, characterized in that: include: A mounting plate, on which a transmitting assembly is disposed, and the transmitting assembly generates a laser beam; A base, arranged below the mounting plate; A first adjustment mechanism is provided on the base to adjust the posture of the launch assembly in the XZ direction with respect to the base as the center; The second adjustment mechanism is arranged on the first adjustment mechanism, and the second adjustment mechanism is connected to the bottom of the mounting plate to adjust the posture of the transmitting component in the XY direction centered on the base.

2. The laser radar transmitting device according to claim 1, characterized in that: The first adjustment mechanism includes: a vertical plate, a pair of the vertical plates are arranged on the base opposite to each other, the bottom of the vertical plates are connected to the base, a fixed cylinder is arranged between the tops of the pair of vertical plates, rotating rings are respectively arranged on the tops of the vertical plates, and rotating wheels are respectively arranged on the fixed cylinder near the two rotating rings, one end of the rotating wheel is respectively connected to the side wall of the fixed cylinder, and the other end of the rotating wheel is respectively rotatably connected to the two rotating rings.

3. The laser radar transmitting device according to claim 2, characterized in that: One of the rotating rings is provided with a mounting tube on its outer shell, a first motor is provided outside the mounting tube, an output shaft of the first motor rotatably passes through the mounting tube, a first rotating rod is provided inside the mounting tube, one end of the first rotating rod is connected to the output shaft of the first motor, and the other end of the first rotating rod is connected to the rotating wheel.

4. The laser radar transmitting device according to claim 2, characterized in that: The second adjustment mechanism includes: a fixed plate, which is arranged on the top of the fixed cylinder, and a gap is set between the fixed plate and the mounting plate. A second motor is also arranged in the fixed cylinder, and the second motor is connected to the bottom of the fixed cylinder. The output shaft of the second motor rotatably passes through the fixed plate and is connected to the center of the bottom of the mounting plate.

5. The laser radar transmitting device according to claim 1, characterized in that: The transmitting assembly comprises: a fixing seat, which is arranged on the mounting plate and close to the outer side of the mounting plate, and a laser transmitting tube is arranged on the fixing seat, and the laser transmitting tube is horizontally arranged on the top of the fixing seat.

6. The laser radar transmitting device according to claim 5, characterized in that: Also includes: The auxiliary optical element is arranged on the mounting plate and is slidably connected to the mounting plate. An auxiliary adjustment mechanism is also arranged between the mounting plate and the auxiliary optical element to change the distance between the auxiliary optical element and the fixing seat.

7. The laser radar transmitting device according to claim 6, characterized in that: The auxiliary adjustment mechanism comprises a pair of slide rails, the pair of slide rails are arranged in parallel on the mounting plate, the slide rails extend from the fixing seat to the side of the mounting plate away from the fixing seat, the slide rails are respectively provided with sliders, the sliders are respectively slidably connected with the slide rails, the pair of sliders are provided with adjustment plates, the adjustment plates are provided with card slots, and the auxiliary optical element is card-engaged with the card slots; A screw is also arranged in parallel between a pair of the slide rails, an adjustment hole is arranged on the adjustment plate, the screw is screwed to the adjustment hole, supports are respectively arranged on the mounting plates near both ends of the screw, the two ends of the screw are respectively rotatably connected to the supports, a mounting hole is also arranged at the bottom of the fixing seat, a third motor is arranged in the mounting hole, and the output shaft of the third motor is connected to one end of the screw near the fixing seat.

Images