A high-precision photoelectric measuring device with angle measurement positioning function

Abstract

The application belongs to the technical field of photoelectric measurement, and particularly relates to a high-precision photoelectric measuring device with angle measurement and positioning functions, which comprises an angle measurement base, the top end of the angle measurement base is provided with an angle measurement mounting frame, the cross-sectional shape of the angle measurement mounting frame is U-shaped, the inside of the angle measurement mounting frame is provided with a high-precision photoelectric angle measuring instrument, and the inside of one side of the angle measurement mounting frame is fixedly provided with an angle positioning motor. The angle automatic locking mechanism can automatically lock and fix the angle positioning shaft of the high-precision photoelectric angle measuring instrument according to the size of the wind force of the dust storm environment when simulating the dust storm environment on Mars in the laboratory, the 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] This invention belongs to the field of photoelectric measurement technology, and specifically relates to a high-precision photoelectric measurement device with angle measurement and positioning function. Background Technology

[0002] Mars has a complex topography and environment, with a surface covered by a layer of loose granular material, and dunes, gravel, and canyons scattered throughout, which greatly restricts the movement of Mars rovers and can easily cause problems such as sinking and slippage. Therefore, before the Mars rover officially enters Mars, it is necessary to establish a laboratory and continuously correct the path based on the topographic information collected by multiple sensors, so as to make full preparations for the rover's entry into Mars.

[0003] In the laboratory, using six high-precision photoelectric angle measuring instruments, one wall-mounted camera, four ceiling-mounted cameras, and one full-field-of-view camera deployed at the test site, high-precision motion measurements were performed on the moving equipment within the test site under simulated conditions. During the measurement process, the angle positioning motor and the angle positioning axis of the high-precision photoelectric angle measuring instrument were used to adjust the angle of the measuring instrument, thereby achieving time synchronization of multiple sets of measuring equipment and establishing a unified coordinate system for the entire site. This also supports the management and analysis of measurement data, thus enabling precise measurement of the Mars rover's movement path.

[0004] However, since the high-precision photoelectric angle measuring instrument also needs to be used in the laboratory to simulate the dust storm environment on Mars, during the operation of the high-precision photoelectric angle measuring instrument, the rotational force of the angle positioning shaft is easily exceeded by the wind force of the dust storm environment, resulting in the angle torsion phenomenon. This not only easily leads to inaccurate angle positioning of the high-precision photoelectric angle measuring instrument, but also causes damage to the output shaft of the motor, affecting the service life of the motor.

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

[0006] To address the aforementioned problems, this invention provides a high-precision photoelectric measuring device with angle measurement and positioning functions, thereby solving the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a high-precision photoelectric measuring device with angle measurement and positioning function, comprising an angle measuring base, an angle measuring mounting frame at one top end of the angle measuring base, the cross-sectional shape of the angle measuring mounting frame being U-shaped, a high-precision photoelectric angle measuring instrument being disposed inside the angle measuring mounting frame, an angle positioning motor being fixedly installed inside one side of the angle measuring mounting frame, angle positioning shafts being fixedly connected to both sides of the high-precision photoelectric angle measuring instrument, and symmetrically arranged slots inside the angle measuring mounting frame for use with the angle positioning shafts and the motor, one of the angle positioning shafts being fixedly connected to the output shaft of the motor, and the other angle positioning shaft extending away from the high-precision photoelectric angle measuring instrument at one end into the slot and rotatably connected to the inner wall of the slot, and an automatic angle locking mechanism being provided on the side of the angle measuring mounting frame away from the motor, capable of automatically locking the angle positioning shaft during a laboratory simulation of a dust storm on Mars.

[0008] Furthermore, the automatic angle locking mechanism includes an angle positioning gear disposed inside one of the slots, and the angle positioning gear is fixedly sleeved on the outside of one of the angle positioning shafts. The angle positioning gear is disposed outside the angle positioning shaft on the side away from the motor. A cavity is provided at the top end of one side of the angle measuring mounting frame, and the cavity is disposed above one of the slots. A T-shaped rod is slidably connected between the cavity and the slot. The T-shaped rod consists of a square rod and a square plate disposed at the top end of the square rod, and the square plate in the T-shaped rod is disposed inside the cavity. A first spring is provided 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 interior of the slot and is fixedly connected to an angle measuring mounting shell. The cross-sectional shape of the angle measuring mounting shell is arc-shaped. An angle positioning arc-shaped toothed plate is slidably connected to the bottom end of the angle measuring mounting shell. Both sides of the angle measuring mounting shell are provided with through slots that cooperate with the angle positioning arc-shaped toothed plate. The side of the angle positioning arc-shaped toothed plate near the angle positioning gear is provided with two teeth that mesh with the angle positioning gear.

[0009] Furthermore, a rotating shaft is rotatably connected to the top end of the angle measuring mounting frame. A set of fan blades is provided at the top end of the rotating shaft. The bottom end of the rotating shaft extends into 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 near the high-precision photoelectric angle measuring instrument. A dial ring that works with a T-shaped rod is fixedly sleeved on the outside of the second bevel gear axle, and the T-shaped rod is located directly below the dial ring.

[0010] Furthermore, the angle measuring mounting housing is internally equipped with an adaptive component for adaptively adjusting the position of the two teeth according to the rotation angle of the angle positioning gear:

[0011] The adaptive component includes a protrusion fixedly connected to one end of the top of the angle positioning arc-shaped toothed plate, and the protrusion and the angle positioning arc-shaped toothed plate are designed as a whole. A second spring is fixedly connected to both sides of the protrusion, and the ends of the two second springs that are far apart from each other are fixedly connected to the inner wall of the angle measuring mounting shell.

[0012] Furthermore, the T-shaped rod and the inside of the angle measuring mounting housing are provided with a secondary angle measuring locking mechanism that can restrict and fix the position of the teeth after the adaptive component has adjusted the teeth;

[0013] Furthermore, the secondary angle measuring locking mechanism includes two pairs of fixed blocks fixedly connected to both sides of the angle measuring mounting shell. Each pair of fixed blocks is rotatably connected to a limiting gear that meshes with an angle positioning arc-shaped toothed plate. Each pair of fixed blocks is fixedly connected to a positioning rod on the side away from the angle measuring mounting shell. Each pair of positioning rods is slidably connected to a T-shaped toothed plate that meshes with the limiting gear. Each pair of fixed blocks and the T-shaped toothed plate is provided with a pair of third springs, and each pair of third springs is movably sleeved on the outside of the positioning rod.

[0014] Furthermore, both sides of the angle measuring mounting shell are rotatably connected to L-shaped push plates that cooperate with T-shaped toothed plates via a pair of fixed plates. The end of the L-shaped push plate away from the T-shaped rod is positioned between the two pairs of positioning rods. The square rod of the T-shaped rod has a movable groove inside that cooperates with the two L-shaped push plates. The ends of the two L-shaped push plates away from the T-shaped toothed plates extend into the movable groove in the T-shaped rod. The top of the inner wall of the movable groove is symmetrically fixedly connected to a fourth spring. The bottom ends of the two fourth springs are fixedly connected to a pressure plate, which is positioned above the two L-shaped push plates. The protrusion and the inside of the angle positioning arc-shaped toothed plate are slidably connected to a cross rod. A cross groove that cooperates with the cross rod is provided between the protrusion 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 positioned at the junction of the angle measuring mounting shell and the T-shaped rod. A T-shaped block that cooperates with the two L-shaped push plates is slidably connected inside the groove.

[0015] Furthermore, the number of fan blades in a set is at least five, and the deflector ring consists of a collar fixedly sleeved on the outside of the second bevel gear shaft and three protrusions disposed on the outside of the collar.

[0016] Furthermore, each pair of positioning rods consists of a round rod and a disc fixedly connected to the side of the round rod away from the fixing block, and the cross-sectional shape of the T-shaped toothed plate is T-shaped.

[0017] Furthermore, the cross bar consists of a round bar and a ring disposed in the middle of the round bar, and the T-shaped block consists of an arc-shaped plate and a square block disposed at one end of the top of the arc-shaped plate.

[0018] The technical effects and advantages of this invention are as follows:

[0019] 1. This invention, by incorporating an automatic angle locking mechanism, can automatically lock and fix the angle positioning shaft of a high-precision photoelectric angle measuring instrument according to the wind force of the dust storm environment during laboratory simulations of Martian dust storms. This improves the stability of the high-precision photoelectric angle measuring instrument in dust storm environments, ensures the angle positioning effect of the high-precision photoelectric angle measuring instrument, and prevents the high-precision photoelectric angle measuring instrument from twisting due to excessive dust storm winds, thus preventing the rotational force of the angle positioning shaft from exceeding the critical value of the torque of the angle positioning motor output shaft, which could lead to damage to the motor output shaft. This effectively extends the service life of the device.

[0020] 2. This invention, by incorporating a two-stage angle measurement and locking mechanism, enables secondary locking of the teeth and gear plate after adjustment of the adaptive components. This effectively prevents damage to the angle positioning gear and angle positioning shaft caused by the adaptive components failing to be fully fixed during dust storms, which would otherwise result in some torsional space and damage to the angle positioning motor output shaft. This invention ensures both the locking effect and accuracy of the automatic angle locking mechanism on the angle positioning shaft, thus increasing the overall practicality of the automatic angle locking mechanism.

[0021] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description and drawings. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A front view of an embodiment of the present invention is shown;

[0024] Figure 2 A cross-sectional plan view of the angle measurement mounting frame portion according to an embodiment of the present invention is shown;

[0025] Figure 3 A partial structural left cross-sectional view of an embodiment of the present invention is shown;

[0026] Figure 4 A partial structural left view of an embodiment of the present invention is shown;

[0027] Figure 5 A partial structural left cross-sectional view of an embodiment of the present invention is shown;

[0028] Figure 6 An enlarged schematic diagram of part A of the present invention is shown;

[0029] Figure 7 An enlarged schematic diagram of the structure of part B according to an embodiment of the present invention is shown;

[0030] Figure 8 An enlarged schematic diagram of the C-section structure according to an embodiment of the present invention is shown;

[0031] In the diagram: 1. Angle measuring base; 2. Angle measuring mounting frame; 3. High-precision photoelectric angle measuring instrument; 4. Angle positioning motor; 5. Angle positioning shaft; 6. Automatic angle locking mechanism; 61. Angle positioning gear; 62. Cavity; 63. T-shaped rod; 64. First spring; 65. Angle measuring mounting shell; 66. Angle positioning arc-shaped toothed plate; 67. Tooth; 68. Rotating shaft; 69. Fan blade; 70. First bevel gear; 71. Second bevel gear; 72. Dial ring; 73. Adaptive component; 731. Protrusion; 732. Second spring; 8. Secondary angle measuring locking mechanism; 81. Fixing block; 82. Limiting gear; 83. Positioning rod; 84. T-shaped toothed plate; 85. Third spring; 86. L-shaped push plate; 87. Fourth spring; 88. Pressure plate; 89. Cross rod; 90. Groove; 91. T-shaped block. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] This invention provides a high-precision photoelectric measuring device with angle measurement and positioning functions, such as... Figures 1-8As shown, the device includes an angle measuring base 1, an angle measuring mounting frame 2 with a U-shaped cross-section, a high-precision photoelectric angle measuring instrument 3 inside the angle measuring mounting frame 2, an angle positioning motor 4 fixedly installed inside one side of the angle measuring mounting frame 2, angle positioning shafts 5 fixedly connected to both sides of the high-precision photoelectric angle measuring instrument 3, and symmetrical slots inside the angle measuring mounting frame 2 for use with the angle positioning shafts 5 and the motor. One angle positioning shaft 5 is fixedly connected to the output shaft of the motor, and the other angle positioning shaft 5 extends into the slot from the high-precision photoelectric angle measuring instrument 3 and is rotatably connected to the inner wall of the slot. An automatic angle locking mechanism 6 is provided on the side of the angle measuring mounting frame 2 away from the motor, which can automatically lock the angle positioning shaft 5 when simulating a dust storm on Mars in the laboratory.

[0034] The automatic angle locking mechanism 6 includes an angle positioning gear 61 disposed inside one of the 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 disposed outside the angle positioning shaft 5 on the side away from the motor. A cavity 62 is provided at the top end of one side of the angle measuring mounting frame 2, and the cavity 62 is disposed above one of the slots. A T-shaped rod 63 is slidably connected between the cavity 62 and the slot. The T-shaped rod 63 consists of a square rod and a square plate disposed at the top end of the square rod, and the square plate in the T-shaped rod 63 is disposed inside the cavity 62. A first spring 64 is provided at one bottom end of the shaped plate, and the first spring 64 is movably sleeved on the outside of the square rod in the T-shaped rod 63. One bottom end of the T-shaped rod 63 extends into the interior of the slot and is fixedly connected to an angle measuring mounting shell 65. The cross-sectional shape of the angle measuring mounting shell 65 is arc-shaped. An angle positioning arc-shaped toothed plate 66 is slidably connected to one bottom end of the angle measuring mounting shell 65. Both sides of the angle measuring mounting shell 65 are provided with through slots that cooperate with the angle positioning arc-shaped toothed plate 66. The angle positioning arc-shaped toothed plate 66 is provided with two teeth 67 that mesh with the angle positioning gear 61 on the side near the angle positioning gear 61.

[0035] The top end of the angle measuring mounting frame 2 is rotatably connected to a rotating shaft 68. A set of fan blades 69 is provided at the top end of the rotating shaft 68. The bottom end of the rotating shaft 68 extends into the cavity 62 and is fixedly sleeved with a first bevel gear 70. The side of the cavity 62 near the high-precision photoelectric angle measuring instrument 3 is rotatably connected to a second bevel gear 71 that meshes with the first bevel gear 70. The outer side of the axle of the second bevel gear 71 is fixedly sleeved with a dial ring 72 that works with a T-shaped rod 63, and the T-shaped rod 63 is located directly below the dial ring 72.

[0036] The angle measuring mounting housing 65 is internally provided with an adaptive component 73 for adaptively adjusting the position of the two teeth 67 according to the rotation angle of the angle positioning gear 61.

[0037] The adaptive component 73 includes a protrusion 731 fixedly connected to one end of the top of the angle positioning arc-shaped toothed plate 66, and the protrusion 731 and the angle positioning arc-shaped toothed plate 66 are integrally designed. A second spring 732 is fixedly connected to both sides of the protrusion 731, and the ends of the two second springs 732 that are far apart from each other are fixedly connected to the inner wall of the angle measuring mounting shell 65 respectively.

[0038] The number of a set of fan blades 69 is at least five, and the deflector ring 72 consists of a collar fixedly sleeved on the outside of the axle of the second bevel gear 71 and three protrusions set on the outside of the collar.

[0039] In use, the high-precision photoelectric angle measuring instrument 3 needs to be fixedly installed in the corresponding position in the laboratory through the angle measuring base 1. Then, in the simulated environment, the motion of the moving equipment in the test field is measured with high precision. During the measurement, the angle positioning motor 4 can be turned on, and the angle positioning shaft 5 is rotated through the angle positioning motor 4. The angle positioning shaft 5 is then rotated through the angle positioning shaft 5, thereby adjusting the measuring angle of the high-precision photoelectric angle measuring instrument 3. This allows the high-precision photoelectric angle measuring instrument 3 to adapt to different measuring angles, thereby achieving accurate measurement of the Mars rover's movement path.

[0040] When simulating a Martian dust storm environment in the laboratory, a high-precision photoelectric angle measuring instrument 3 accurately measures the rover's movement path within the dust storm environment. When the simulated dust storm wind is strong, a set of fan blades 69 drives the rotating shaft 68 to rotate under the force of the wind. This causes the rotating shaft 68 to drive the first bevel gear 70 to rotate synchronously. The first bevel gear 70, through meshing with the second bevel gear 71, drives the dial ring 72 to rotate. As the dial ring 72 rotates, the three protrusions on the outer side of the dial ring 72 continuously push the T-shaped rod 63 downward. When one of the protrusions pushes the T-shaped rod 63 downward, the T-shaped rod 63 is pushed by the angle measuring mounting shell 65. The angle positioning arc-shaped toothed plate 66 moves down synchronously and squeezes the first spring 64, causing the angle positioning arc-shaped toothed plate 66 to push the two teeth 67 down. Through the meshing action with the angle positioning gear 61, the angle positioning gear 61 is meshed with and the rotation angle of the angle positioning gear 61 is limited and fixed. In turn, the angle positioning gear 61 temporarily limits the rotation angle of the angle positioning shaft 5 and the high-precision photoelectric angle measuring instrument 3, preventing the high-precision photoelectric angle measuring instrument 3 from twisting due to excessive wind force in the dust storm, which would cause the rotation force of the angle positioning shaft 5 to exceed the critical value of the torque of the output shaft of the angle positioning motor 4, resulting in damage to the motor output shaft.

[0041] If the rotational speed of a set of fan blades 69 is relatively slow at this time, i.e., the wind force is low in a dust storm environment, 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 toothed plate 66 and the teeth 67 to move upward and reset through the angle measuring mounting shell 65, so as to release the meshing action between the teeth 67 and the angle positioning gear 61, i.e., release the restriction effect on the angle positioning gear 61 and the angle positioning shaft 5, and repeat in sequence, so as to achieve intermittent fixation of the angle positioning shaft 5 when the wind force is low in a dust storm environment, and prevent the phenomenon that the rotational force of the angle positioning shaft 5 exceeds the critical value of the output shaft torque of the angle positioning motor 4; if the rotational speed of a set of fan blades 69 is relatively slow at this time ... shaft 69 to move upward and reset through the angle measuring mounting shell 65, so as to release the meshing action between the teeth 67 and the angle positioning gear 61, i.e. When the wind force is strong in a dust storm environment, when one of the convex plates leaves the T-shaped rod 63, the T-shaped rod 63 moves upward and resets under the reset action of the first spring 64. At the same time, the other convex plate contacts the T-shaped rod 63 again. That is, the speed at which the two dial 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 contacted by the outer convex plate of the dial ring 72. Under the cooperation of the above structure, the two teeth 67 are always engaged with the angle positioning gear 61, maintaining the restriction effect on the angle positioning gear 61 and the angle positioning shaft 5. This can effectively prevent the rotation force of the angle positioning shaft 5 from exceeding the critical value of the output shaft torque of the angle positioning motor 4.

[0042] When the two teeth 67 are engaged with the angle positioning gear 61, if the two teeth 67 cannot be engaged with the angle positioning gear 61, the two teeth 67, under the action of the external teeth 67 of the angle positioning gear 61, will drive the angle positioning arc-shaped tooth plate 66 and the protrusion 731 to rotate a certain angle inside the angle measuring mounting shell 65. This will cause the protrusion 731 to press one of the second springs 732 to one side and stretch the other second spring 732, so that the teeth 67 can rotate to a position where they can successfully engage with the angle positioning gear 61. This will ensure the meshing effect between the teeth 67 and the angle positioning gear 61 and improve the stability of the angle automatic locking mechanism 6.

[0043] This invention, by incorporating an automatic angle locking mechanism 6, can automatically lock and fix the angle positioning shaft 5 of the high-precision photoelectric angle measuring instrument 3 according to the wind force of the dust storm environment during laboratory simulations of Martian dust storms. This improves the stability of the high-precision photoelectric angle measuring instrument 3 in dust storm environments, ensures the angle positioning effect of the high-precision photoelectric angle measuring instrument 3, and prevents the high-precision photoelectric angle measuring instrument 3 from twisting due to excessive dust storm winds, thus preventing the rotational force of the angle positioning shaft 5 from exceeding the critical value of the torque of the angle positioning motor 4 output shaft, which could lead to damage to the motor output shaft. This effectively extends the service life of the device.

[0044] like Figures 1-8As shown, the T-shaped rod 63 and the angle measuring mounting housing 65 are provided with a secondary angle measuring locking mechanism 8, which can restrict and fix the position of the tooth 67 after the adaptive component 73 has adjusted the tooth 67;

[0045] The secondary angle measuring locking mechanism 8 includes two pairs of fixing blocks 81 fixedly connected to both sides of the angle measuring mounting shell 65. Each pair of fixing blocks 81 is rotatably connected to a limiting gear 82 that meshes with the angle positioning arc-shaped toothed plate 66. Each pair of fixing blocks 81 is fixedly connected to a positioning rod 83 on the side away from the angle measuring mounting shell 65. Each pair of positioning rods 83 is slidably connected to a T-shaped toothed plate 84 that meshes with the limiting gear 82. Each pair of fixing blocks 81 and the T-shaped toothed plate 84 is provided with a pair of third springs 85, and each pair of third springs 85 is movably sleeved on the outside of the positioning rods 83.

[0046] Both sides of the angle measuring mounting housing 65 are rotatably connected to L-shaped push plates 86 that cooperate with T-shaped toothed plates 84 via a pair of fixed plates. The end of the L-shaped push plate 86 away from the T-shaped rod 63 is positioned between the two pairs of positioning rods 83. The square rod of the T-shaped rod 63 has a movable groove inside that cooperates with the two L-shaped push plates 86. The ends of the two L-shaped push plates 86 away from the T-shaped toothed plates 84 extend into the movable groove in the T-shaped rod 63. The top of the inner wall of the movable groove is symmetrically fixedly connected to a fourth spring 87. The bottom ends of the two fourth springs 87 are jointly fixedly connected to... A pressure plate 88 is positioned above two L-shaped push plates 86. A cross rod 89 is slidably connected to the inside of a protrusion 731 and an angle positioning arc-shaped toothed plate 66. A cross groove is provided between the protrusion 731 and the two teeth 67 to cooperate with the cross rod 89. One end of the bottom of the cross rod 89 extends to the position between the two teeth 67. A groove 90 is provided above the cross rod 89. The groove 90 is located at the junction of the angle measuring mounting shell 65 and the T-shaped rod 63. A T-shaped block 91 is slidably connected inside the groove 90 to cooperate with the two L-shaped push plates 86.

[0047] Both pairs of positioning rods 83 consist of a round rod and a disc fixedly connected to the side of the round rod away from the fixing block 81. The cross-sectional shape of the T-shaped toothed plate 84 is T-shaped.

[0048] The cross bar 89 consists of a round bar and a ring set in the middle of the round bar, and the T-shaped block 91 consists of an arc plate and a square block set at the top end of the arc plate;

[0049] When the aforementioned angle positioning arc toothed plate 66 and protrusion 731 rotate a certain angle inside the angle measuring mounting shell 65, the protrusion 731 drives the cross rod 89 to slide synchronously on the inner side of the T-shaped block 91. At the same time, the angle positioning arc toothed plate 66 rotates, and through the meshing action between it and the limiting gear 82, it drives the limiting gear 82 to rotate synchronously.

[0050] When the two rotated teeth 67 are fully engaged with the angle positioning gear 61, the angle positioning gear 61 pushes the cross rod 89 upward through the contact action with the cross rod 89, so that the cross rod 89 contacts the T-shaped block 91 and pushes the T-shaped block 91 upward synchronously. This allows the T-shaped block 91 to push the two L-shaped push plates 86 to rotate synchronously through the contact action with the two L-shaped push plates 86. During the rotation of the two L-shaped push plates 86, the contact action between the two L-shaped push plates 86 and the two T-shaped tooth plates 84 pushes the two T-shaped tooth plates 84 to slide outside the two pairs of positioning rods 83 and move towards the direction of the limiting gear 82. At the same time, it compresses the two third springs 85, so that the two T-shaped tooth plates 84 engage with the limiting gear 82. Through the meshing action with the two limiting gears 82, the limiting gears 82 are fixed and restricted. Thus, the two limiting gears 82 are used to restrict and fix the position of the angle positioning arc tooth plate 66 and the two teeth 67 after rotating a certain angle.

[0051] This invention, by providing a two-stage angle measurement and locking mechanism 8, can achieve secondary locking of the teeth 67 and the tooth plate after the adaptive component 73 is adjusted. This effectively prevents the teeth 67 from being completely fixed due to the adaptive component 73 during dust storms, which would leave some torsional space in the angle positioning gear 61 and the angle positioning shaft 5, and cause some damage to the output shaft of the angle positioning motor 4. This invention can ensure the locking effect of the automatic angle locking mechanism 6 on the angle positioning shaft 5 while maintaining the accuracy of the locking, thus increasing the overall practicality of the automatic angle locking mechanism 6.

[0052] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-precision photoelectric measuring device with angle measurement and positioning function, comprising an angle measuring base (1), characterized in that: An angle measuring mounting frame (2) is provided at one end of the top of the angle measuring base (1), and the cross-sectional shape of the angle measuring mounting frame (2) is U-shaped. A high-precision photoelectric angle measuring instrument (3) is provided inside the angle measuring mounting frame (2). An angle positioning motor (4) is fixedly installed inside one side of the angle measuring mounting frame (2). An angle positioning shaft (5) is fixedly connected to both sides of the high-precision photoelectric angle measuring instrument (3). A slot is symmetrically provided inside the angle measuring mounting frame (2) for use with the angle positioning shaft (5) and the motor. One of the angle positioning shafts (5) is fixedly connected to the output shaft of the motor. The other angle positioning shaft (5) extends away from the high-precision photoelectric angle measuring instrument (3) to the inside of the slot and is rotatably connected to the inner wall of the slot. An angle automatic locking mechanism (6) is provided on the side of the angle measuring mounting frame (2) away from the motor, which can automatically lock the angle positioning shaft (5) when simulating a dust storm on Mars in the laboratory. The automatic angle locking mechanism (6) includes an angle positioning gear (61) disposed inside one of the 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 disposed outside the angle positioning shaft (5) on the side away from the motor. A cavity (62) is provided at the top end of one side of the angle measuring mounting frame (2), and the cavity (62) is disposed above one of the slots. A T-shaped rod (63) is slidably connected between the cavity (62) and the slot. The T-shaped rod (63) consists of a square rod and a square plate disposed at the top end of the square rod. The square plate in the T-shaped rod (63) is disposed inside the cavity (62). 3) A first spring (64) is provided at one bottom end of the square plate, 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 interior of the slot and is fixedly connected to an angle measuring mounting shell (65). The cross-sectional shape of the angle measuring mounting shell (65) is arc-shaped. An angle positioning arc toothed plate (66) is slidably connected at one bottom end of the angle measuring mounting shell (65). Both sides of the angle measuring mounting shell (65) are provided with through slots that cooperate with the angle positioning arc toothed plate (66). The angle positioning arc toothed plate (66) has two teeth (67) that mesh with the angle positioning gear (61) on the side close to the angle positioning gear (61). The top end of the angle measuring mounting frame (2) is rotatably connected to a rotating shaft (68). A set of fan blades (69) is provided at the top end of the rotating shaft (68). The bottom end of the rotating shaft (68) extends into the cavity (62) and is fixedly sleeved with a first bevel gear (70). The cavity (62) is rotatably connected to a second bevel gear (71) that meshes with the first bevel gear (70) on the side close to the high-precision photoelectric angle measuring instrument (3). The outer side of the axle of the second bevel gear (71) is fixedly sleeved with a dial ring (72) that works with a T-shaped rod (63), and the T-shaped rod (63) is located directly below the dial ring (72).

2. The high-precision photoelectric measuring device with angle measurement and positioning function according to claim 1, characterized in that: The angle measuring mounting housing (65) is internally provided with an adaptive component (73) for adaptively adjusting the position of the two teeth (67) according to the rotation angle of the angle positioning gear (61): The adaptive component (73) includes a protrusion (731) fixedly connected to one end of the top of the angle positioning arc toothed plate (66), and the protrusion (731) and the angle positioning arc toothed plate (66) are integrally designed. Both sides of the protrusion (731) are fixedly connected to a second spring (732), and the ends of the two second springs (732) that are far apart from each other are fixedly connected to the inner wall of the angle measuring mounting shell (65).

3. A high-precision photoelectric measuring device with angle measurement and positioning function according to claim 2, characterized in that: The T-shaped rod (63) and the angle measuring mounting shell (65) are provided with a secondary angle measuring locking mechanism (8) that can restrict and fix the position of the tooth (67) after the adaptive component (73) has adjusted the tooth (67). The secondary angle measuring locking mechanism (8) includes two pairs of fixed blocks (81) fixedly connected to both sides of the angle measuring mounting shell (65). A limiting gear (82) that meshes with the angle positioning arc-shaped toothed plate (66) is rotatably connected between the two pairs of fixed blocks (81). A positioning rod (83) is fixedly connected to the side of the two pairs of fixed blocks (81) away from the angle measuring mounting shell (65). A T-shaped toothed plate (84) that meshes 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) is provided between the two pairs of fixed blocks (81) and the T-shaped toothed plate (84), and the two pairs of third springs (85) are respectively movably sleeved on the outside of the positioning rods (83).

4. A high-precision photoelectric measuring device with angle measurement and positioning function according to claim 3, characterized in that: Both sides of the angle measuring mounting shell (65) are rotatably connected to L-shaped push plates (86) that cooperate with T-shaped toothed plates (84) via a pair of fixed plates. The end of the L-shaped push plate (86) away from the T-shaped rod (63) is positioned between the two pairs of positioning rods (83). The square rod of the T-shaped rod (63) has a movable groove inside that cooperates with the two L-shaped push plates (86). The ends of the two L-shaped push plates (86) away from the T-shaped toothed plates (84) extend into the movable groove in the T-shaped rod (63). The top of the inner wall of the movable groove is symmetrically fixedly connected to a fourth spring (87). The bottom ends of the two fourth springs (87) are jointly fixedly connected to a pressure plate (8). 8), and the pressure plate (88) is set above the two L-shaped push plates (86). The protrusion (731) and the angle positioning arc toothed plate (66) are slidably connected to the cross rod (89). The protrusion (731) and the two teeth (67) are provided with a cross groove that cooperates with the cross rod (89). The bottom end of the cross rod (89) extends to the position between the two teeth (67). The cross rod (89) is provided with a groove (90) above it. The groove (90) is set at the junction of the angle measuring mounting shell (65) and the T-shaped rod (63). The groove (90) is slidably connected to the inside of the groove (90) and the T-shaped block (91) that cooperates with the two L-shaped push plates (86).

5. A high-precision photoelectric measuring device with angle measurement and positioning function according to claim 1, characterized in that: The number of the fan blades (69) in a set is at least five, and the swivel ring (72) consists of a collar fixedly sleeved on the outside of the axle of the second bevel gear (71) and three protrusions disposed on the outside of the collar.

6. A high-precision photoelectric measuring device with angle measurement and positioning function according to claim 3, characterized in that: Both pairs of positioning rods (83) consist of a round rod and a disk fixedly connected to the side of the round rod away from the fixing block (81), and the cross-sectional shape of the T-shaped toothed plate (84) is T-shaped.

7. A high-precision photoelectric measuring device with angle measurement and positioning function according to claim 4, characterized in that: The cross bar (89) consists of a round bar and a ring set in the middle of the round bar, and the T-shaped block (91) consists of an arc plate and a square block set at the top end of the arc plate.

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