High-precision photoelectric measuring device with angle measuring and positioning functions

Abstract

The invention belongs to the technical field of photoelectric measurement, and particularly relates to a high-precision photoelectric measurement device with an angle measurement positioning function, which comprises an angle measurement base, an angle measurement mounting frame is arranged at one end of the top of the angle measurement base, and the cross section of the angle measurement mounting frame is U-shaped. A high-precision photoelectric angle measuring instrument is arranged in the angle measurement mounting frame, and an angle positioning motor is fixedly mounted in one side of the angle measurement mounting frame. According to the invention, through the arrangement of the angle automatic locking mechanism, the angle positioning shaft of the high-precision photoelectric angle measuring instrument can be automatically locked and fixed according to the wind power of the dust storm environment when the dust storm environment on Mars is simulated in a laboratory, so that the use stability of the high-precision photoelectric angle measuring instrument in the dust storm environment is improved; and the angle positioning effect of the high-precision photoelectric angle measuring instrument is ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of optoelectronic measurement, and particularly relates to a high-precision optoelectronic measurement device with an angle measurement and positioning function. Background Art

[0002] The terrain and geomorphology environment of Mars is complex, and its surface is covered by a layer of loose granular materials, with sand dunes, gravels, and canyons everywhere, which impose many restrictions on the movement of the Mars rover and are prone to problems such as subsidence and slippage. Therefore, before the Mars rover officially enters Mars, it is necessary to establish a laboratory and continuously correct the path according to the terrain and geomorphology information collected by multiple sensors, so as to make full preparations for the Mars rover to enter Mars.

[0003] In the laboratory, through 6 high-precision optoelectronic angle measuring instruments, 1 wall-mounted camera, 4 ceiling-mounted cameras, and 1 full-field camera arranged in the test site, high-precision motion measurement of the moving equipment in the test field is carried out in a simulated environment. During the measurement process, the angle of the measuring instrument is adjusted through the angle positioning motor and the angle positioning axis of the high-precision optoelectronic angle measuring instrument, so as to complete the time synchronization of multiple sets of measuring equipment, establish a unified coordinate system for the whole field, and support the management and analysis of measurement data, thereby realizing the accurate measurement of the movement route of the Mars rover.

[0004] However, since the high-precision optoelectronic angle measuring instrument also needs to be used when simulating the dust storm environment on Mars in the laboratory, during the operation of the high-precision optoelectronic angle measuring instrument, it is easy for the turning force of the angle positioning axis to be greater than the critical value of the torque of the output shaft of the angle positioning motor due to the wind force in the dust storm environment, resulting in the phenomenon of angle torsion. This not only easily causes inaccurate angle positioning of the high-precision optoelectronic angle measuring instrument, but also damages the output shaft of the motor and affects the service life of the motor.

[0005] Therefore, it is very necessary to invent a high-precision optoelectronic measurement device with an angle measurement and positioning function to solve the above problems. Summary of the Invention

[0006] In view of the above problems, the present invention provides a high-precision optoelectronic measurement device with an angle measurement and positioning function to solve the problems raised in the above background art.

[0007] To achieve the above object, the present invention provides the following technical solution: a high-precision optoelectronic measuring device with an angle measurement and positioning function, including an angle measurement base. One end of the top of the angle measurement base is provided with an angle measurement mounting frame, and the cross-sectional shape of the angle measurement mounting frame is U-shaped. A high-precision optoelectronic angle measuring instrument is arranged inside the angle measurement mounting frame. An angle positioning motor is fixedly installed inside one side of the angle measurement mounting frame. Angle positioning shafts are fixedly connected to both sides of the high-precision optoelectronic angle measuring instrument. Empty slots are symmetrically arranged inside the angle measurement mounting frame and are used in cooperation with the angle positioning shafts and the motor. One of the angle positioning shafts is fixedly connected to the output shaft of the motor, and the other end of the angle positioning shaft away from the high-precision optoelectronic angle measuring instrument extends into the inside of the empty slot and is rotatably connected to the inner wall of the empty slot. An angle automatic locking mechanism is arranged on the side of the angle measurement mounting frame away from the motor, which can automatically lock the angle positioning shaft when simulating dust storms on Mars in the laboratory.

[0008] Further, the angle automatic locking mechanism includes an angle positioning gear arranged inside one of the empty slots, and the angle positioning gear is fixedly sleeved on the outside of one of the angle positioning shafts. The angle positioning gear is arranged on the outside of the angle positioning shaft on the side away from the motor. One end of the top of one side of the angle measurement mounting frame is provided with a cavity, and the cavity is arranged above one of the empty slots. A T-shaped rod is slidably connected between the cavity and the empty slot. The T-shaped rod is composed of a square rod and a square plate arranged at one end of the top of the square rod. The square plate in the T-shaped rod is arranged inside the cavity. A first spring is arranged at the bottom end of the square plate in the T-shaped rod, and the first spring is movably sleeved on the outside of the square rod in the T-shaped rod. The bottom end of the T-shaped rod extends into the inside of the empty slot and is fixedly connected to an angle measurement mounting shell, and the cross-sectional shape of the angle measurement mounting shell is arc-shaped. An angle positioning arc-shaped tooth plate is slidably connected to the bottom end of the angle measurement mounting shell, and through slots are arranged on both sides of the angle measurement mounting shell and are used in cooperation with the angle positioning arc-shaped tooth plate. Two teeth that mesh with the angle positioning gear are arranged on the side of the angle positioning arc-shaped tooth plate close to the angle positioning gear.

[0009] Further, one end of the top of the angle measurement mounting frame is rotatably connected to a rotating shaft. A group of fan blades is arranged at the top end of the rotating shaft. The bottom end of the rotating shaft extends into the inside of the cavity and is fixedly sleeved with a first bevel gear. A second bevel gear that meshes with the first bevel gear is rotatably connected to the side of the cavity close to the high-precision optoelectronic angle measuring instrument. A dial ring that is used in cooperation with the T-shaped rod is fixedly sleeved on the outside of the wheel shaft of the second bevel gear, and the T-shaped rod is arranged directly below the dial ring.

[0010] Further, an adaptability component is arranged inside the angle measurement mounting shell for adaptively adjusting the positions of the two teeth according to the rotation angle of the angle positioning gear: The adaptive component includes a bump fixedly connected to one end of the top of the angular positioning arc-shaped tooth plate, and the bump and the angular positioning arc-shaped tooth plate are integrally designed. Second springs are fixedly connected to both sides of the bump, and the mutually remote ends of the two second springs are respectively fixedly connected to the inner wall of the angular measurement mounting shell.

[0011] Further, a secondary angular measurement locking mechanism is provided inside the T-shaped rod and the angular measurement mounting shell, which can limit and fix the position of the tooth after the adaptive component finishes adjusting the tooth. Further, the secondary angular measurement locking mechanism includes two pairs of fixed blocks fixedly connected to both sides of the angular measurement mounting shell. Between the two pairs of fixed blocks, a limit gear meshing with the angular positioning arc-shaped tooth plate is rotatably connected. On the side of the two pairs of fixed blocks away from the angular measurement mounting shell, positioning rods are fixedly connected. A T-shaped tooth plate meshing with the limit gear is slidably connected to the outside of the two pairs of positioning rods. A pair of third springs are provided between the two pairs of fixed blocks and the T-shaped tooth plate, and the two pairs of third springs are respectively movably sleeved on the outside of the positioning rods.

[0012] Further, on both sides of the angular measurement mounting shell, an L-shaped push plate used in cooperation with the T-shaped tooth plate is rotatably connected through a pair of fixing plates. The end of the L-shaped push plate away from the T-shaped rod is arranged between the two pairs of positioning rods. An activity groove used in cooperation with the two L-shaped push plates is provided inside the square rod of the T-shaped rod. The ends of the two L-shaped push plates away from the T-shaped tooth plate both extend into the activity groove inside the T-shaped rod. Fourth springs are symmetrically fixedly connected to the top of the inner wall of the activity groove. The bottom ends of the two fourth springs are commonly fixedly connected to a pressing plate, and the pressing plate is arranged above the two L-shaped push plates. A cross rod is slidably connected inside the bump and the angular positioning arc-shaped tooth plate. A cross groove used in cooperation with the cross rod is provided between the bump and the two teeth. The bottom end of the cross rod extends to the position between the two teeth. A groove is provided above the cross rod, and the groove is arranged at the junction of the angular measurement mounting shell and the T-shaped rod. A T-shaped block used in cooperation with the two L-shaped push plates is slidably connected inside the groove.

[0013] Further, the number of a group of the fan blades is at least five. The dial ring is composed of a collar fixedly sleeved on the outer shaft of the second bevel gear and three convex plates arranged on the outside of the collar.

[0014] Further, the two pairs of positioning rods are each composed of a round rod and a disc fixedly connected to the side of the round rod away from the fixed block. The cross-sectional shape of the T-shaped tooth plate is T-shaped.

[0015] Furthermore, the cross bar is composed of a round bar and a ring arranged in the middle of the round bar, and the T-shaped block is composed of an arc-shaped plate and a square block arranged at one end of the top of the arc-shaped plate.

[0016] Technical effects and advantages of the present invention: 1. By providing an angle automatic locking mechanism, when simulating the dust storm environment on Mars in the laboratory, the present invention can automatically lock and fix the angle positioning shaft of the high-precision optoelectronic angle measuring instrument according to the magnitude of the wind force in the dust storm environment, improving the stability of the high-precision optoelectronic angle measuring instrument when used in the dust storm environment, ensuring the angle positioning effect of the high-precision optoelectronic angle measuring instrument, preventing the angle of the high-precision optoelectronic angle measuring instrument from twisting due to excessive dust storm wind force, and preventing the phenomenon that the rotation force of the angle positioning shaft is greater than the critical value of the torque of the output shaft of the angle positioning motor, resulting in damage to the output shaft of the motor, and effectively extending the service life of the device.

[0017] 2. By providing a secondary angle measurement locking mechanism, the present invention can achieve secondary locking of the teeth and the tooth plate after the adjustment of the adaptability component, effectively preventing the teeth from not being fully fixed due to the adaptability component during a dust storm, resulting in a certain torsional space remaining between the angle positioning gear and the angle positioning shaft, and a certain degree of damage still occurring to the output shaft of the angle positioning motor. It can ensure the locking effect of the angle automatic locking mechanism on the angle positioning shaft while ensuring the accuracy of the angle automatic locking mechanism in locking the angle positioning shaft, increasing the overall practicality of the angle automatic locking mechanism.

[0018] Other features and advantages of the present invention will be described in the subsequent description, and part of them will be obvious from the description or understood by implementing the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the structures pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 Shows the front view of the embodiment of the present invention; Figure 2 Shows the partially sectional plan view of the angle measurement installation frame of the embodiment of the present invention; Figure 3 Shows the left sectional plan view of a part of the structure of the embodiment of the present invention; Figure 4Shows a left view of a partial structure of an embodiment of the present invention; Figure 5 Shows a left sectional view of a partial structure of an embodiment of the present invention; Figure 6 Shows an enlarged schematic view of the structure of part A of an embodiment of the present invention; Figure 7 Shows an enlarged schematic view of the structure of part B of an embodiment of the present invention; Figure 8 Shows an enlarged schematic view of the structure of part C of an embodiment of the present invention; In the figure: 1, angle measurement base; 2, angle measurement mounting frame; 3, high-precision optoelectronic angle measuring instrument; 4, angle positioning motor; 5, angle positioning shaft; 6, angle automatic locking mechanism; 61, angle positioning gear; 62, cavity; 63, T-shaped rod; 64, first spring; 65, angle measurement mounting shell; 66, angle positioning arc-shaped tooth plate; 67, tooth; 68, rotating shaft; 69, fan blade; 70, first bevel gear; 71, second bevel gear; 72, dial ring; 73, adaptability component; 731, bump; 732, second spring; 8, secondary angle measurement locking mechanism; 81, fixed block; 82, limit gear; 83, positioning rod; 84, T-shaped tooth plate; 85, third spring; 86, L-shaped push plate; 87, fourth spring; 88, pressing plate; 89, cross rod; 90, groove; 91, T-shaped block. Detailed implementation manners

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] The present invention provides a high-precision optoelectronic measuring device with an angle measurement and positioning function, as Figures 1 - 8As shown in the figure, it includes an angle measurement base 1. At one end of the top of the angle measurement base 1, there is an angle measurement mounting frame 2. The cross-sectional shape of the angle measurement mounting frame 2 is U-shaped. Inside the angle measurement mounting frame 2, there is a high-precision optoelectronic angle measuring instrument 3. Inside one side of the angle measurement mounting frame 2, there is a fixed angle positioning motor 4. On both sides of the high-precision optoelectronic angle measuring instrument 3, there are fixed angle positioning shafts 5. Inside the angle measurement mounting frame 2, there are symmetrically arranged empty slots that cooperate with the angle positioning shafts 5 and the motor. One of the angle positioning shafts 5 is fixedly connected to the output shaft of the motor. The end of the other angle positioning shaft 5 away from the high-precision optoelectronic angle measuring instrument 3 extends into the inside of the empty slot and is rotatably connected to the inner wall of the empty slot. On the side of the angle measurement mounting frame 2 away from the motor, there is an angle automatic locking mechanism 6 that can automatically lock the angle positioning shaft 5 when simulating a dust storm on Mars in the laboratory; The angle automatic locking mechanism 6 includes an angle positioning gear 61 arranged inside one of the empty slots. The angle positioning gear 61 is fixedly sleeved on the outside of one of the angle positioning shafts 5. The angle positioning gear 61 is arranged on the outside of the angle positioning shaft 5 on the side away from the motor. At one end of the top of one side of the angle measurement mounting frame 2, there is a cavity 62. The cavity 62 is arranged above one of the empty slots. There is a T-shaped rod 63 slidably connected between the cavity 62 and the empty slot. The T-shaped rod 63 is composed of a square rod and a square plate arranged at one end of the top of the square rod. The square plate in the T-shaped rod 63 is arranged inside the cavity 62. At the bottom end of the square plate in the T-shaped rod 63, there is a first spring 64. The first spring 64 is movably sleeved on the outside of the square rod in the T-shaped rod 63. The bottom end of the T-shaped rod 63 extends into the inside of the empty slot and is fixedly connected to an angle measurement mounting shell 65. The cross-sectional shape of the angle measurement mounting shell 65 is arc-shaped. At the bottom end of the angle measurement mounting shell 65, there is a slidable angle positioning arc-shaped tooth plate 66. On both sides of the angle measurement mounting shell 65, there are through slots that cooperate with the angle positioning arc-shaped tooth plate 66. On the side of the angle positioning arc-shaped tooth plate 66 close to the angle positioning gear 61, there are two tooth teeth 67 that mesh with the angle positioning gear 61; At one end of the top of the angle measurement mounting frame 2, there is a rotatable shaft 68. At the top end of the shaft 68, there is a group of fan blades 69. The bottom end of the shaft 68 extends into the inside of the cavity 62 and is fixedly sleeved with a first bevel gear 70. Inside the cavity 62, close to the high-precision optoelectronic angle measuring instrument 3, there is a rotatable second bevel gear 71 that meshes with the first bevel gear 70. On the outside of the wheel shaft of the second bevel gear 71, there is a dial ring 72 that cooperates with the T-shaped rod 63. The T-shaped rod 63 is arranged directly below the dial ring 72; Inside the angle measurement mounting shell 65, there is an adaptability component 73 for adaptively adjusting the positions of the two tooth teeth 67 according to the rotation angle of the angle positioning gear 61: The adaptive component 73 includes a bump 731 fixedly connected to one end of the top of the angular positioning arc-shaped tooth plate 66. The bump 731 and the angular positioning arc-shaped tooth plate 66 are integrally designed. Both sides of the bump 731 are fixedly connected with second springs 732, and the ends of the two second springs 732 away from each other are respectively fixedly connected to the inner wall of the angle measurement mounting shell 65; The number of a group of fan blades 69 is at least five. The dial ring 72 is composed of a collar fixedly sleeved on the outer part of the axle of the second bevel gear 71 and three convex plates arranged on the outer part of the collar; During use, it is necessary to first fixedly install the high-precision photoelectric angle measuring instrument 3 at the corresponding position in the laboratory through the angle measurement base 1. Then, in the simulated environment, perform high-precision motion measurement on the moving equipment in the test field. During the measurement, the angle positioning motor 4 can be turned on. The angle positioning motor 4 drives the angle positioning shaft 5 to rotate, and the angle positioning shaft 5 drives the high-precision photoelectric angle measuring instrument 3 to rotate, so as to realize the adjustment of the measurement angle of the high-precision photoelectric angle measuring instrument 3, enabling the high-precision photoelectric angle measuring instrument 3 to adapt to different measurement angles, and thus realizing the precise measurement of the movement route of the Mars rover; When the laboratory simulates the dust storm environment on Mars, the high-precision photoelectric angle measuring instrument 3 is in the dust storm environment to precisely measure the movement route of the Mars rover. When the simulated dust storm wind force is relatively large, a group of fan blades 69 drive the rotating shaft 68 to rotate under the action of the wind force, so that the rotating shaft 68 drives the first bevel gear 70 to rotate synchronously, so that the first bevel gear 70 drives the dial ring 72 to rotate through the meshing action with the second bevel gear 71. Thus, during the rotation of the dial ring 72, the three convex plates on the outer side of the dial ring 72 continuously push the T-shaped rod 63 downward. When one of the convex plates pushes the T-shaped rod 63 downward, the T-shaped rod 63 pushes the angular positioning arc-shaped tooth plate 66 to move downward synchronously through the angle measurement mounting shell 65 and squeezes the first spring 64, so that the angular positioning arc-shaped tooth plate 66 pushes the two tooth teeth 67 downward, and through the meshing action with the angular positioning gear 61, meshes with the angular positioning gear 61 and limits and fixes the rotation angle of the angular positioning gear 61. Furthermore, the rotation angle of the angular positioning shaft 5 and the high-precision photoelectric angle measuring instrument 3 is temporarily limited through the angular positioning gear 61, preventing the high-precision photoelectric angle measuring instrument 3 from undergoing angular torsion due to excessive dust storm wind force, resulting in the rotation force of the angular positioning shaft 5 being greater than the critical value of the torque of the output shaft of the angle positioning motor 4, and causing damage to the output shaft of the motor; If the rotation speed of a set of fan blades 69 is slow at this time, that is, when the wind force in the dust storm environment is small, when one of the convex plates leaves the T-shaped rod 63, the T-shaped rod 63, under the reset action of the first spring 64, drives the angle positioning arc-shaped tooth plate 66 and the tooth 67 to move upward and reset through the angle measurement mounting shell 65, so as to release the meshing effect between the tooth 67 and the angle positioning gear 61, that is, to release the restriction on the angle positioning gear 61 and the angle positioning shaft 5, and reciprocate in turn. When the wind force in the dust storm environment is small, the intermittent fixation of the angle positioning shaft 5 is realized, and the phenomenon that the rotation force of the above-mentioned angle positioning shaft 5 is greater than the torque critical value of the output shaft of the angle positioning motor 4 is prevented; if the rotation speed of a set of fan blades 69 is relatively fast at this time, that is, when the wind force in the dust storm environment is large, when one of the convex plates leaves the T-shaped rod 63, while the T-shaped rod 63 moves upward and resets under the reset action of the first spring 64, another convex plate abuts against the T-shaped rod 63 again, that is, the speed at which the two collar rings 72 rotate one-third of a turn is faster than the speed at which the T-shaped rod 63 moves upward and resets. At this time, the T-shaped rod 63 is always in the position where it is abutted by the outer convex plate of the collar ring 72, and the two teeth 67, under the cooperation of the above structure, are always meshed with the angle positioning gear 61, maintaining the restriction effect on the angle positioning gear 61 and the angle positioning shaft 5, and the phenomenon that the rotation force of the above-mentioned angle positioning shaft 5 is greater than the torque critical value of the output shaft of the angle positioning motor 4 can be effectively avoided; When the above two teeth 67 are meshed with the angle positioning gear 61, if the two teeth 67 cannot be meshed with the angle positioning gear 61, the two teeth 67, under the abutting action of the external teeth 67 of the angle positioning gear 61, drive the angle positioning arc-shaped tooth plate 66 and the convex block 731 to rotate a certain angle inside the angle measurement mounting shell 65, so that the convex block 731 squeezes one of the second springs 732 to one side and stretches the other second spring 732, so that the tooth 67 can rotate to a position where it can be successfully meshed with the angle positioning gear 61, thereby ensuring the meshing effect between the tooth 67 and the angle positioning gear 61 and improving the stability of the use of the angle automatic locking mechanism 6; By providing the angle automatic locking mechanism 6, the present invention can, when simulating the dust storm environment on Mars in the laboratory, realize the automatic locking and fixation of the angle positioning shaft 5 of the high-precision photoelectric angle measuring instrument 3 according to the size of the wind force in the dust storm environment, improve the stability of the high-precision photoelectric angle measuring instrument 3 when used in the dust storm environment, ensure the angle positioning effect of the high-precision photoelectric angle measuring instrument 3, prevent the high-precision photoelectric angle measuring instrument 3 from twisting due to excessive dust storm wind force, and the rotation force of the angle positioning shaft 5 is greater than the torque critical value of the output shaft of the angle positioning motor 4, resulting in the phenomenon of damage to the output shaft of the motor, and can effectively extend the service life of the device.

[0023] Such as Figures 1 - 8As shown, inside the T-shaped rod 63 and the angle measurement mounting housing 65, there is a secondary angle measurement locking mechanism 8 that can limit and fix the position of the tooth 67 after the adaptive component 73 finishes adjusting the tooth 67; The secondary angle measurement locking mechanism 8 includes two pairs of fixed blocks 81 fixedly connected to both sides of the angle measurement mounting housing 65. Between the two pairs of fixed blocks 81, there is a limit gear 82 rotatably connected and meshing with the angle positioning arc-shaped tooth plate 66. On the side of the two pairs of fixed blocks 81 away from the angle measurement mounting housing 65, there is a positioning rod 83 fixedly connected. Outside the two pairs of positioning rods 83, there is a T-shaped tooth plate 84 that slidably connects together and meshes with the limit gear 82. Between the two pairs of fixed blocks 81 and the T-shaped tooth plate 84, there is a pair of third springs 85, and the two pairs of third springs 85 are respectively movably sleeved outside the positioning rod 83; On both sides of the angle measurement mounting housing 65, there is an L-shaped push plate 86 rotatably connected through a pair of fixing plates and used in cooperation with the T-shaped tooth plate 84. And the end of the L-shaped push plate 86 away from the T-shaped rod 63 is arranged at the position between the two pairs of positioning rods 83. Inside the square rod of the T-shaped rod 63, there is an activity slot used in cooperation with the two L-shaped push plates 86. And the ends of the two L-shaped push plates 86 away from the T-shaped tooth plate 84 both extend into the activity slot inside the T-shaped rod 63. At the top of the inner wall of the activity slot, there are fourth springs 87 symmetrically fixedly connected. The bottom ends of the two fourth springs 87 are fixedly connected together with a pressing plate 88, and the pressing plate 88 is arranged above the two L-shaped push plates 86. Inside the convex block 731 and the angle positioning arc-shaped tooth plate 66, there is a cross rod 89 slidingly connected. Between the convex block 731 and the two teeth 67, there is a cross slot used in cooperation with the cross rod 89, and the bottom end of the cross rod 89 extends to the position between the two teeth 67. Above the cross rod 89, there is a groove 90, and the groove 90 is arranged at the junction of the angle measurement mounting housing 65 and the T-shaped rod 63. Inside the groove 90, there is a T-shaped block 91 slidingly connected and used in cooperation with the two L-shaped push plates 86; Both pairs of positioning rods 83 are composed of a round rod and a disc fixedly connected to the side of the round rod away from the fixed block 81. The cross-sectional shape of the T-shaped tooth plate 84 is T-shaped; The cross rod 89 is composed of a round rod and a ring arranged in the middle of the round rod. The T-shaped block 91 is composed of an arc-shaped plate and a square block arranged at one end of the top of the arc-shaped plate; When the above-mentioned angle positioning arc-shaped tooth plate 66 and the convex block 731 rotate a certain angle inside the angle measurement mounting housing 65, the convex block 731 drives the cross rod 89 to slide synchronously inside the T-shaped block 91. While the angle positioning arc-shaped tooth plate 66 rotates, through the meshing action with the limit gear 82, it drives the limit gear 82 to rotate synchronously; When the two rotated teeth 67 are fully meshed with the angle positioning gear 61, the angle positioning gear 61 pushes the cross rod 89 upward through the interference between the cross rod 89, so that the cross rod 89 conflicts with the T-shaped block 91 and pushes the T-shaped block 91 to move upward synchronously, so that the T-shaped block 91 pushes the two L-shaped push plates 86 to rotate synchronously through the interference between the two L-shaped push plates 86. In the process of the rotation of the two L-shaped push plates 86, the two T-shaped toothed plates 84 are pushed to slide outside the two pairs of positioning rods 83 and move toward the limit gear 82 through the interference between the two L-shaped push plates 86 and the two T-shaped toothed plates 84. At the same time, the two third springs 85 are squeezed so that the two T-shaped toothed plates 84 are meshed with the limit gear 82, and the two limit gears 82 are restricted and fixed through the meshing action between the two limit gears 82, and then the angle positioning arc toothed plate 66 and the two teeth 67 after a certain angle of rotation are restricted and fixed through the two limit gears 82. The present invention is provided with a secondary angle measurement locking mechanism 8, which can realize the secondary locking of the teeth 67 and the tooth plate after the adaptive component 73 is adjusted. It can effectively prevent the teeth 67 from being unable to be completely fixed due to the adaptive component 73 during a dust storm, resulting in a certain torsional space for the angle positioning gear 61 and the angle positioning shaft 5, and the output shaft of the angle positioning motor 4 will still be damaged to a certain extent. While ensuring the locking effect of the angle automatic locking mechanism 6 on the angle positioning shaft 5, the accuracy of the locking of the angle automatic locking mechanism 6 on the angle positioning shaft 5 is increased, thereby increasing the overall practicality of the angle automatic locking mechanism 6.

[0024] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-precision optoelectronic measuring device with an angle measurement and positioning function, comprising an angle measurement base (1), characterized in that: At the top end of the angle measurement base (1), there is an angle measurement mounting frame (2), and the cross-sectional shape of the angle measurement mounting frame (2) is U-shaped. Inside the angle measurement mounting frame (2), there is a high-precision optoelectronic angle measuring instrument (3). Inside one side of the angle measurement mounting frame (2), there is a fixed angle positioning motor (4). On both sides of the high-precision optoelectronic angle measuring instrument (3), there are fixed angle positioning shafts (5). Inside the angle measurement mounting frame (2), there are symmetrically arranged empty slots that cooperate with the angle positioning shafts (5) and the motor. One of the angle positioning shafts (5) is fixedly connected to the output shaft of the motor, and the end of the other angle positioning shaft (5) far from the high-precision optoelectronic angle measuring instrument (3) extends into the inside of the empty slot and is rotatably connected to the inner wall of the empty slot. On the side of the angle measurement mounting frame (2) far from the motor, there is an angle automatic locking mechanism (6) that can automatically lock the angle positioning shaft (5) when simulating dust storms on Mars in the laboratory.

2. The high-precision optoelectronic measurement device with an angle measurement and positioning function according to claim 1, wherein: The angle automatic locking mechanism (6) includes an angle positioning gear (61) arranged inside one of the empty slots, and the angle positioning gear (61) is fixedly sleeved on the outside of one of the angle positioning shafts (5). The angle positioning gear (61) is arranged on the outside of the angle positioning shaft (5) on the side far from the motor. At the top end of one side of the angle measurement mounting frame (2), there is a cavity (62), and the cavity (62) is arranged above one of the empty slots. A T-shaped rod (63) is slidably connected between the cavity (62) and the empty slot. The T-shaped rod (63) consists of a square rod and a square plate arranged at the top end of the square rod, and the square plate in the T-shaped rod (63) is arranged inside the cavity (62). At the bottom end of the square plate in the T-shaped rod (63), there is a first spring (64), and the first spring (64) is movably sleeved on the outside of the square rod in the T-shaped rod (63). The bottom end of the T-shaped rod (63) extends into the inside of the empty slot and is fixedly connected to an angle measurement mounting shell (65), and the cross-sectional shape of the angle measurement mounting shell (65) is arc-shaped. At the bottom end of the angle measurement mounting shell (65), there is a slidable angle positioning arc-shaped tooth plate (66), and on both sides of the angle measurement mounting shell (65), there are through slots that cooperate with the angle positioning arc-shaped tooth plate (66). On the side of the angle positioning arc-shaped tooth plate (66) close to the angle positioning gear (61), there are two teeth (67) that mesh with the angle positioning gear (61).

3. The high-precision optoelectronic measurement device with an angle measurement and positioning function according to claim 2, wherein: One end of the top of the angle measurement mounting frame (2) is rotatably connected to a rotating shaft (68). One end of the top of the rotating shaft (68) is provided with a group of fan blades (69). One end of the bottom of the rotating shaft (68) extends into the cavity (62) and is fixedly sleeved with a first bevel gear (70). One side of the cavity (62) close to the high-precision photoelectric angle measuring instrument (3) is rotatably connected to a second bevel gear (71) meshing with the first bevel gear (70). The outer part of the wheel shaft of the second bevel gear (71) is fixedly sleeved with a dial ring (72) used in cooperation with the T-shaped rod (63), and the T-shaped rod (63) is arranged directly below the dial ring (72).

4. The high-precision optoelectronic measuring device with an angle measurement and positioning function according to claim 3, wherein: An adaptability component (73) for adaptively adjusting the positions of two tooth flanks (67) according to the rotation angle of the angle positioning gear (61) is arranged inside the angle measurement mounting shell (65): The adaptability component (73) includes a convex block (731) fixedly connected to one end of the top of the angle positioning arc-shaped tooth plate (66), and the convex block (731) and the angle positioning arc-shaped tooth plate (66) are integrally designed. Both sides of the convex block (731) are fixedly connected with second springs (732), and the mutually remote ends of the two second springs (732) are respectively fixedly connected to the inner wall of the angle measurement mounting shell (65).

5. The high-precision optoelectronic measuring device with an angle measurement and positioning function according to claim 4, characterized in that: A secondary angle measurement locking mechanism (8) capable of restricting and fixing the position of the tooth flank (67) after the adaptability component (73) finishes adjusting the tooth flank (67) is arranged between the T-shaped rod (63) and the inside of the angle measurement mounting shell (65); The secondary angle measurement locking mechanism (8) includes two pairs of fixed blocks (81) fixedly connected to both sides of the angle measurement mounting shell (65). A limiting gear (82) meshing with the angle positioning arc-shaped tooth plate (66) is rotatably connected between the two pairs of fixed blocks (81). One side of the two pairs of fixed blocks (81) away from the angle measurement mounting shell (65) is fixedly connected with positioning rods (83). A T-shaped tooth plate (84) meshing with the limiting gear (82) is slidably connected to the outside of the two pairs of positioning rods (83). A pair of third springs (85) are arranged between the two pairs of fixed blocks (81) and the T-shaped tooth plate (84), and the two pairs of third springs (85) are respectively movably sleeved on the outside of the positioning rods (83).

6. The high-precision optoelectronic measuring device with an angle measurement and positioning function according to claim 5, characterized in that: Both sides of the angle measurement mounting shell (65) are rotatably connected with L-shaped push plates (86) used in cooperation with the T-shaped tooth plate (84) through a pair of fixing plates, and the position where the end of the L-shaped push plate (86) away from the T-shaped rod (63) is arranged between the two pairs of positioning rods (83). An activity groove used in cooperation with the two L-shaped push plates (86) is arranged inside the square rod of the T-shaped rod (63), and the ends of the two L-shaped push plates (86) away from the T-shaped tooth plate (84) both extend into the activity groove inside the T-shaped rod (63). The top of the inner wall of the activity groove is symmetrically fixedly connected with fourth springs (87), and the bottom ends of the two fourth springs (87) are jointly fixedly connected with a pressing plate (88), and the pressing plate (88) is arranged above the two L-shaped push plates (86). A cross rod (89) is slidably connected inside the angle positioning arc-shaped tooth plate (66) with the convex block (731). A cross groove used in cooperation with the cross rod (89) is arranged between the convex block (731) and the two tooth teeth (67), and the bottom end of the cross rod (89) extends to the position between the two tooth teeth (67). A groove (90) is arranged above the cross rod (89), and the groove (90) is arranged at the junction of the angle measurement mounting shell (65) and the T-shaped rod (63). A T-shaped block (91) used in cooperation with the two L-shaped push plates (86) is slidably connected inside the groove (90).

7. The high-precision optoelectronic measuring device with an angle measurement and positioning function according to claim 3, wherein: The number of a group of the fan blades (69) is at least five, and the dial ring (72) is composed of a collar fixedly sleeved outside the axle of the second bevel gear (71) and three convex plates arranged outside the collar.

8. The high-precision optoelectronic measuring device with an angle measurement and positioning function according to claim 5, characterized in that: Both pairs of the positioning rods (83) are composed of a round rod and a disc fixedly connected to one side of the round rod away from the fixed block (81), and the cross-sectional shape of the T-shaped tooth plate (84) is T-shaped.

9. The high-precision optoelectronic measuring device with an angle measurement and positioning function according to claim 6, wherein: The cross rod (89) is composed of a round rod and a ring arranged in the middle of the round rod, and the T-shaped block (91) is composed of an arc-shaped plate and a square block arranged at one end of the top of the arc-shaped plate.

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