Miniaturized portable two-dimensional motion platform

Abstract

The invention discloses a miniaturized portable two-dimensional motion platform, and belongs to the field of measuring instruments, the miniaturized portable two-dimensional motion platform comprises a box body, a mounting bottom plate, an azimuth angle adjusting assembly and a pitching angle adjusting assembly, a partition plate is arranged in the box body, and the azimuth angle adjusting assembly comprises a first hand wheel, a first worm, a first worm gear, an azimuth damper and an azimuth encoder; the first hand wheel is fixedly connected with the first worm, the first worm is rotationally connected with the box body and meshed with the first worm gear, a fixing shaft is arranged in the lower cavity and fixedly connected with the partition plate, the orientation damper comprises an upper damping piece and a lower damping piece, the orientation encoder comprises a first stator and a first rotor, the upper damping piece is fixedly connected with the first worm gear, and the lower damping piece is fixedly connected with the lower stator. The lower damping piece is fixedly connected with the first rotor; the mounting bottom plate is arranged on the outer side of the box body and is fixedly connected with the rotor; the pitch angle adjusting assembly adjusts the pitch angle of the measuring equipment, so that the precision of azimuth angle adjustment and pitch angle adjustment of the measuring equipment can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of measuring instruments, and in particular relates to a miniaturized portable two-dimensional motion platform. Background Art

[0002] Accurate azimuth and elevation measurements are crucial in many fields, including navigation and surveying. These measurements are typically performed using measuring equipment, such as north finders and radars.

[0003] In order to achieve the measurement of azimuth and pitch angles, it is usually necessary to set up a two-dimensional motion platform. The measuring equipment is installed on the two-dimensional motion platform. The azimuth and pitch angles are adjusted by controlling the measuring equipment through the two-dimensional motion platform, so that the measurement of azimuth and pitch angles can be achieved.

[0004] Currently, a common two-dimensional motion platform includes a load plate, a mounting seat, and a base. The mounting seat is provided with a first rotating shaft, which is arranged in the horizontal direction and is rotatably connected to the mounting seat. The load plate is connected to the first rotating shaft. In this way, when the first rotating shaft rotates, it can drive the load plate to rotate up and down to adjust the pitch angle of the measuring device. The base is provided with a second rotating shaft, which is arranged in the vertical direction and fixedly connected to the base. The mounting seat is rotatably connected to the second rotating shaft. In this way, when the mounting seat rotates relative to the base, it can drive the load plate to rotate left and right to adjust the azimuth angle of the measuring device. However, the adjustment accuracy of the azimuth angle when using the above-mentioned two-dimensional motion platform is low, which in turn affects the accuracy of the azimuth angle adjustment of the measuring device. Summary of the Invention

[0005] In order to solve the above problems existing in the prior art, the present invention provides a miniaturized portable two-dimensional motion platform. The technical problem to be solved by the present invention is achieved through the following technical solutions:

[0006] In a first aspect, the present invention provides a miniaturized portable two-dimensional motion platform, comprising a housing, a mounting base, an azimuth angle adjustment assembly, and a pitch angle adjustment assembly, wherein a partition is provided in the housing, the partition dividing the interior space of the housing into an upper chamber and a lower chamber;

[0007] The azimuth angle adjustment assembly includes a first handwheel, a first worm, a first worm gear, an azimuth damper and an azimuth encoder, the first handwheel and the first worm are fixedly connected, the first worm is rotatably connected to the housing, the first worm is meshed with the first worm gear, a fixed shaft is provided in the lower chamber, the fixed shaft and the partition are fixedly connected, the first worm gear is mounted on the fixed shaft and is rotatably connected to the fixed shaft, the azimuth damper includes an upper damping member and a lower damping member, the upper damping member is pressed against the lower damping member, the azimuth encoder includes a first stator and a first rotor, the first stator is fixedly connected to the housing, the first rotor is rotatably connected to the first stator, the upper damping member is fixedly connected to the first worm gear, the lower damping member is fixedly connected to the first rotor, and the mounting base is arranged outside the housing and fixedly connected to the rotor;

[0008] The pitch angle adjustment assembly is installed on the box body. The pitch angle adjustment assembly includes a support plate for installing the measuring device. The pitch angle adjustment assembly is used to adjust the pitch angle of the measuring device.

[0009] In one embodiment of the present invention, the pitch angle adjustment assembly further includes a first vertical plate, a second vertical plate, a first rotating shaft, and a second rotating shaft, wherein the first vertical plate and the second vertical plate are respectively connected to two sides of the support plate, and the first vertical plate, the support plate, and the second vertical plate form a U-shaped bracket;

[0010] The first rotating shaft and the second rotating shaft are respectively arranged on both sides of the box body, one end of the first rotating shaft is connected to the first vertical plate, and the other end extends into the box body, one end of the second rotating shaft is connected to the second vertical plate, and the other end extends into the box body, and the first rotating shaft and the second rotating shaft are both rotatably connected to the box body.

[0011] In one embodiment of the present invention, the pitch angle adjustment assembly further includes a second hand wheel, a connecting shaft, a first bevel gear, a second bevel gear, a second worm and a second worm gear;

[0012] The second hand wheel and the first bevel gear are respectively connected to the two ends of the connecting shaft, the connecting shaft and the box body are rotatably connected, the second bevel gear is fixedly connected to the second worm, the first bevel gear and the second bevel gear are meshed, the second worm gear is fixedly connected to the first rotating shaft, and the second worm gear is meshed with the second worm gear.

[0013] In one embodiment of the present invention, the pitch angle adjustment assembly also includes a pitch encoder, the pitch encoder includes a second stator and a second rotor, the second stator is fixedly connected to the housing, the second rotor is rotatably connected to the second stator, and the second rotor is fixedly connected to the second rotating shaft.

[0014] In one embodiment of the present invention, the pitch angle adjustment assembly further includes a pitch damper, which includes a left damper and a right damper. The left damper is fixed on the second rotating shaft, and the right damper is fixed on the box body. The left damper is pressed against the right damper.

[0015] In one embodiment of the present invention, a gyroscope is provided in the upper chamber.

[0016] In one embodiment of the present invention, a tripod and a quick-detachable lock buckle are further included, and the mounting base plate is fixed to the tripod via the quick-detachable lock buckle.

[0017] In one embodiment of the present invention, a bearing is provided on the fixed shaft, the first worm gear includes a shaft hole, the inner ring of the bearing is fixed to the outer circumference of the fixed shaft, and the outer ring of the bearing is fixed in the shaft hole of the first worm gear.

[0018] In one embodiment of the present invention, both the azimuth angle adjustment assembly and the pitch angle adjustment assembly are provided with a micro gear reducer.

[0019] In one embodiment of the present invention, the first handwheel and the second handwheel both include a wheel body and a folding handle. The wheel body is an annular structure, and an installation groove is provided on the inner annular surface of the wheel body. The installation groove is arranged along the axial direction of the wheel body and is open in the outward direction. One end of the folding handle is rotatably connected to the installation groove.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] In the above scheme of the present application, the two-dimensional motion platform includes a box body, a mounting base, an azimuth angle adjustment component and a pitch angle adjustment component. A partition is provided in the box body, which divides the internal space of the box body into an upper chamber and a lower chamber; the azimuth angle adjustment component includes a first handwheel, a first worm, a first worm gear, an azimuth damper and an azimuth encoder. The first handwheel and the first worm are fixedly connected, the first worm is rotatably connected to the box body, the first worm and the first worm gear are meshed, a fixed shaft is provided in the lower chamber, the fixed shaft and the partition are fixedly connected, the first worm gear is mounted on the fixed shaft and is connected to the fixed shaft Rotationally connected, the azimuth damper includes an upper damping member and a lower damping member, the upper damping member is pressed against the lower damping member, the azimuth encoder includes a first stator and a first rotor, the first stator is fixedly connected to the box, the first rotor and the first stator are rotationally connected, the upper damping member is fixedly connected to the first worm gear, the lower damping member is fixedly connected to the first rotor, the mounting base is arranged on the outside of the box and is fixedly connected to the rotor; the pitch angle adjustment assembly is installed on the box, the pitch angle adjustment assembly includes a support plate for mounting a measuring device, and the pitch angle adjustment assembly is used to adjust the pitch angle of the measuring device. With this structure, first, the user can control the rotation of the first handwheel, and when the first handwheel rotates, it drives the first worm to rotate, and when the first worm rotates, it drives the first worm wheel to rotate, and when the first worm wheel rotates, it drives the azimuth damper to rotate, and when the azimuth damper rotates, it drives the first rotor and the mounting base plate on the azimuth encoder to rotate, so that the box can be rotated relative to the mounting base plate to achieve azimuth angle adjustment. In this way, the rotation angle of the first worm wheel can be accurately controlled by the first handwheel and the first worm, so that small-angle azimuth adjustment can be achieved, making the two-dimensional motion platform more accurate when adjusting the azimuth angle, thereby improving the accuracy of the azimuth angle adjustment of the measuring equipment; the real-time rotation angle is output by the azimuth encoder, which can further improve the accuracy of the azimuth angle adjustment of the measuring equipment; the damping effect is provided by the azimuth damper, which can improve the overall stability of the pitch angle adjustment assembly.

[0022] Secondly, the user can manipulate the housing to rotate. When the torque applied by the user to the housing is greater than the threshold of the azimuth damper, the upper damper and the lower damper in the azimuth damper can rotate relative to each other. At this time, the housing rotates and drives the first handwheel, the first worm, the first worm gear, and the upper damper to rotate. The lower damper, the rotor, and the mounting base are relatively fixed. The housing drives the first stator on the azimuth encoder to rotate relative to the first rotor. In this way, the user can also manipulate the housing to achieve large-angle rotation, thereby increasing the speed at which the housing rotates to a preset angle. By manipulating the first handwheel to achieve small-angle rotation and manipulating the housing to achieve large-angle rotation, the measuring device can be more convenient and more accurate when adjusting the azimuth angle. In addition, a self-locking structure can be formed between the first worm and the first worm gear, and a friction self-locking structure can be formed between the upper damper and the lower damper in the azimuth damper, so that the azimuth angle adjustment assembly can be self-locked at any position. In addition, the pitch angle adjustment component can be used to adjust the pitch angle of the measuring device, so that the measuring device can achieve both azimuth angle adjustment and pitch angle adjustment.

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of a two-dimensional motion platform in an embodiment of the present invention;

[0025] Figure 2 is a cross-sectional view of a two-dimensional motion platform in an embodiment of the present invention Figure 1 ;

[0026] Figure 3 is a cross-sectional view of a two-dimensional motion platform in an embodiment of the present invention Figure 2 ;

[0027] Figure 4 Schematic diagram of a two-dimensional motion platform and a measuring device in an embodiment of the present invention.

[0028] Figure numerals: 1-housing, 2-first worm gear, 3-azimuth damper, 4-azimuth encoder, 5-second worm gear, 6-pitch damper, 7-pitch encoder, 8-U-shaped bracket, 9-first handwheel, 10-mounting base plate, 11-gyroscope, 13-tripod, 14-circuit system. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below with reference to specific examples, but the embodiments of the present invention are not limited thereto.

[0030] See Figure 1 、 Figure 2 、 Figure 3 and Figure 4The embodiment of the present invention provides a miniaturized portable two-dimensional motion platform, including a box body 1, a mounting base 10, an azimuth angle adjustment component and a pitch angle adjustment component. A partition is provided in the box body 1, which divides the internal space of the box body 1 into an upper chamber and a lower chamber; the azimuth angle adjustment component includes a first hand wheel 9, a first worm, a first worm gear 2, an azimuth damper 3 and an azimuth encoder 4. The first hand wheel 9 is fixedly connected to the first worm, the first worm is rotatably connected to the box body 1, the first worm is meshed with the first worm gear 2, a fixed shaft is provided in the lower chamber, the fixed shaft is fixedly connected to the partition, and the first worm gear 2 is installed on the fixed On the fixed axis and rotatably connected to the fixed axis, the azimuth damper 3 includes an upper damping member and a lower damping member, the upper damping member is pressed against the lower damping member, the azimuth encoder 4 includes a first stator and a first rotor, the first stator is fixedly connected to the housing 1, the first rotor is rotatably connected to the first stator, the upper damping member is fixedly connected to the first worm gear 2, the lower damping member is fixedly connected to the first rotor, the mounting base 10 is arranged on the outside of the housing 1 and is fixedly connected to the rotor; the pitch angle adjustment assembly is mounted on the housing 1, the pitch angle adjustment assembly includes a support plate for mounting a measuring device, and the pitch angle adjustment assembly is used to adjust the pitch angle of the measuring device.

[0031] In some embodiments of the present application, structural parts such as the box body 1, U-shaped bracket 8 and mounting base are formed and processed using aluminum-magnesium alloy AZ31B, and the two-dimensional motion platform adopts a lightweight and miniaturized design; the outer wall of the box body 1 is provided with weight-reducing grooves and reinforcing ribs and other structures to meet the required weight while also having load-bearing strength, so that the overall weight of the two-dimensional motion platform does not exceed 2Kg.

[0032] In some embodiments of the present application, the measuring device is a north finder.

[0033] In some embodiments of the present application, the two-dimensional motion platform further includes a circuit system 14 , which is disposed in the upper chamber.

[0034] In some embodiments of the present application, a waist hole is provided on the box body 1, and the first worm is installed in the waist hole. In this way, the position of the first worm can be fine-tuned in the waist hole to ensure that the center distance between the first worm wheel 2 and the first worm meets the requirements, eliminate the azimuth shaking caused by the gap between the worm wheel and worm pair, and ensure that the horizontal torque generated when rotating the first handwheel 9 will not cause the azimuth angle adjustment component to shake.

[0035] In some embodiments of the present application, the torque value of the azimuth damper 3 is adjustable, and the torque threshold is <5 Nm. The upper damping member in the azimuth damper 3 can be composed of an upper stainless steel disc and an intermediate shaft, and the intermediate shaft is fixedly connected to the upper stainless steel disc. The lower damping member can be a lower stainless steel disc, and the upper stainless steel disc and the lower stainless steel disc are tightly fitted. The pre-stressed installation ensures that the friction force is a fixed value, thereby achieving the required threshold of the azimuth damper 3.

[0036] In some embodiments of the present application, when the threshold of the azimuth damper 3 is 2 Nm, the force required for large azimuth angle adjustment is most appropriate.

[0037] In some embodiments of the present application, the reduction ratio of the azimuth transmission mechanism composed of the first hand wheel 9, the first worm and the first worm wheel 2 in the azimuth angle adjustment assembly can be 600:1.

[0038] In some embodiments of the present application, the azimuth transmission mechanism, the azimuth damper 3 and the azimuth encoder 4 are sequentially stacked on each other from top to bottom.

[0039] In some embodiments of the present application, the module of the first worm and the first worm wheel 2 is 1, the first worm is made of titanium alloy to reduce weight, and the first worm wheel 2 is made of brass to ensure good friction performance between the two.

[0040] In the above scheme of the present application, the two-dimensional motion platform includes a box body 1, a mounting base 10, an azimuth angle adjustment component and a pitch angle adjustment component. A partition is provided in the box body 1, and the partition divides the internal space of the box body 1 into an upper chamber and a lower chamber; the azimuth angle adjustment component includes a first handwheel 9, a first worm, a first worm gear 2, an azimuth damper 3 and an azimuth encoder 4. The first handwheel 9 is fixedly connected to the first worm, the first worm is rotatably connected to the box body 1, the first worm is meshed with the first worm gear 2, and a fixed shaft is provided in the lower chamber, which is fixedly connected to the partition, and the first worm gear 2 is installed on the fixed shaft and is connected to the box body 1. The fixed axis is rotationally connected, the azimuth damper 3 includes an upper damping member and a lower damping member, the upper damping member is pressed against the lower damping member, the azimuth encoder 4 includes a first stator and a first rotor, the first stator is fixedly connected to the housing 1, the first rotor and the first stator are rotationally connected, the upper damping member and the first worm gear 2 are fixedly connected, the lower damping member and the first rotor are fixedly connected, the mounting base 10 is arranged on the outside of the housing 1 and is fixedly connected to the rotor; the pitch angle adjustment assembly is installed on the housing 1, the pitch angle adjustment assembly includes a support plate for mounting a measuring device, and the pitch angle adjustment assembly is used to adjust the pitch angle of the measuring device. With this structure, first, the user can control the first hand wheel 9 to rotate. When the first hand wheel 9 rotates, it drives the first worm to rotate. When the first worm rotates, it drives the first worm wheel 2 to rotate. When the first worm wheel 2 rotates, it drives the azimuth damper 3 to rotate. When the azimuth damper 3 rotates, it drives the first rotor and the mounting base plate 10 on the azimuth encoder 4 to rotate, so that the box body 1 can be rotated relative to the mounting base plate 10 to achieve azimuth angle adjustment. In this way, the rotation angle of the first worm wheel 2 can be accurately controlled by the first hand wheel 9 and the first worm, so that small angle azimuth adjustment can be achieved, so that the accuracy of the azimuth angle adjustment of the two-dimensional motion platform is higher, thereby improving the accuracy of the azimuth angle adjustment of the measuring equipment; the real-time rotation angle is output by the azimuth encoder 4, which can further improve the accuracy of the azimuth angle adjustment of the measuring equipment; the damping effect is provided by the azimuth damper 3, which can improve the overall stability of the pitch angle adjustment assembly.

[0041] Secondly, the user can manipulate the housing 1 to rotate. When the torque applied by the user to the housing 1 is greater than the threshold of the azimuth damper 3, the upper damper and the lower damper in the azimuth damper 3 can rotate relative to each other. At this time, the housing 1 rotates and drives the first handwheel 9, the first worm, the first worm gear 2, and the upper damper to rotate. The lower damper, the rotor, and the mounting base 10 are relatively fixed. The housing 1 drives the first stator on the azimuth encoder 4 to rotate relative to the first rotor. In this way, the user can also manipulate the housing 1 to achieve large-angle rotation, which increases the speed at which the housing 1 rotates to a preset angle. By manipulating the first handwheel 9 to achieve small-angle rotation and manipulating the housing 1 to achieve large-angle rotation, the azimuth angle adjustment of the measuring device is more convenient and more accurate. In addition, a self-locking structure can be formed between the first worm and the first worm gear 2, and a friction self-locking structure can be formed between the upper damper and the lower damper in the azimuth damper 3, so that the azimuth angle adjustment assembly can be self-locked at any position. In addition, the pitch angle adjustment component can be used to adjust the pitch angle of the measuring device, so that the measuring device can achieve both azimuth angle adjustment and pitch angle adjustment.

[0042] In some embodiments of the present application, the pitch angle adjustment assembly further includes a first vertical plate, a second vertical plate, a first rotating shaft, and a second rotating shaft. The first vertical plate and the second vertical plate are respectively connected to either side of the support plate. The first vertical plate, the support plate, and the second vertical plate form a U-shaped bracket 8. The first rotating shaft and the second rotating shaft are respectively arranged on either side of the box body 1. One end of the first rotating shaft is connected to the first vertical plate, and the other end extends into the box body 1. One end of the second rotating shaft is connected to the second vertical plate, and the other end extends into the box body 1. Both the first rotating shaft and the second rotating shaft are rotatably connected to the box body 1. This structure can improve the overall stability of the U-shaped bracket 8, thereby improving the stability of the measurement equipment installation.

[0043] In some embodiments of the present application, Figure 1 As shown, the support plate is provided with a handle, multiple dovetail grooves and multiple positioning bosses. The measuring equipment is positioned by the dovetail grooves and the positioning bosses to improve the stability of the installation of the measuring equipment. The handle is formed from titanium alloy. The dovetail grooves of the handle and the measuring equipment are wedge-engaged and locked by rotating the handle. The U-shaped bracket 8 can be connected to the measuring equipment through a lock, so that the measuring equipment can be quickly disassembled and assembled.

[0044] In some embodiments of the present application, a sealing structure is provided between the first and second rotating shafts and the housing 1. The sealing structure is a highly elastic fluororubber O-ring to ensure dynamic sealing performance. A conductive silicone gasket is provided between the housing 1 and the cover plate, and a uniform preload is applied by high-strength screws to meet electromagnetic shielding and static sealing requirements. Surface micro-arc oxidation treatment is performed on structural parts such as aluminum-magnesium alloys, and hard anodizing treatment is performed on structural parts such as aluminum alloys. The outer surface of the housing 1 is spray-painted to isolate mold, salt spray, water vapor, and corrosion, and to cope with simple and complex weather conditions.

[0045] In some embodiments of the present application, Figure 1 , such as 2 and Figure 3 As shown, the pitch angle adjustment assembly also includes a second hand wheel, a connecting shaft, a first bevel gear, a second bevel gear, a second worm, and a second worm gear 5; the second hand wheel and the first bevel gear are respectively connected to both ends of the connecting shaft, the connecting shaft and the housing 1 are rotatably connected, the second bevel gear is fixedly connected to the second worm, the first bevel gear and the second bevel gear are meshed, and the second worm gear 5 is fixedly connected to the first rotating shaft, and the second worm and the second worm gear 5 are meshed. With this structure, the user can control the second hand wheel to rotate, and when the second hand wheel rotates, it drives the connecting shaft to rotate, and when the connecting shaft rotates, it drives the first bevel gear to rotate, and when the first bevel gear rotates, it drives the second bevel gear to rotate, and when the second bevel gear rotates, it drives the second worm to rotate, and when the second worm rotates, it drives the second worm gear 5 to rotate, and when the second worm gear 5 rotates, it drives the first rotating shaft to rotate, and when the first rotating shaft rotates, it drives the first vertical plate to rotate, and when the first vertical plate rotates, it can drive the support plate and the second vertical plate to rotate. In this way, when the second hand wheel rotates, it can drive the support plate to adjust the pitch angle, thereby enabling the measuring device on the support plate to achieve pitch angle adjustment.

[0046] In some embodiments of the present application, the reduction ratio of the pitch transmission mechanism composed of the second hand wheel, the connecting shaft, the first bevel gear, the second bevel gear, the second worm and the second worm gear 5 can be 1050:1.

[0047] In some embodiments of the present application, the second worm gear 5 can be fixedly connected to the first rotating shaft through a keyway structure, and the first rotating shaft and the connecting shaft are parallel.

[0048] In some embodiments of the present application, a self-locking structure can be formed between the second worm gear 5 and the second worm, so that the support plate can be stably and reliably maintained at the set pitch angle position, so that the pitch angle adjustment assembly can achieve self-locking.

[0049] In some embodiments of the present application, the second worm can be mounted on a boss on the inner wall of the housing 1 via a pair of deep groove ball bearings.

[0050] In some embodiments of the present application, the first rotating shaft and the second rotating shaft can be installed on the box body 1 through a flange.

[0051] In some embodiments of the present application, the angle adjustment of the measuring device can be precisely controlled within a pitch angle range of ±25° by operating the second hand wheel.

[0052] In some embodiments of the present application, the worm gear pair composed of the second worm gear 5 and the second worm, and the bevel gear pair composed of the first bevel gear and the second bevel gear are both made of brass, have good mutual wear resistance, and have a module of 0.5. By reducing the module, the meshing impact is reduced and the transmission smoothness is improved.

[0053] In some embodiments of the present application, the pitch angle adjustment assembly further includes a pitch encoder 7, which includes a second stator and a second rotor. The second stator is fixedly connected to the housing 1, and the second rotor is rotatably connected to the second stator. The second rotor is fixedly connected to the second rotating shaft. With this structure, rotation of the second rotating shaft drives the second rotor to rotate relative to the second stator, allowing the pitch encoder 7 to output a real-time pitch angle, thereby further improving the accuracy of the pitch angle adjustment of the measuring device.

[0054] In some embodiments of the present application, the pitch angle adjustment assembly further includes a pitch damper 6, which comprises a left damper member and a right damper member. The left damper member is fixed to the second rotating shaft, and the right damper member is fixed to the housing 1, with the left damper member pressing against the right damper member. Rotation of the second rotating shaft drives the left and right dampers to rotate relative to each other. This structure, through the damping effect provided by the pitch damper 6, can eliminate angular output errors caused by pitch axis oscillation and further enhance the self-locking effect of the pitch angle adjustment assembly.

[0055] In some embodiments of the present application, the left damping member of the pitch damper 6 can be composed of a left stainless steel disc and an intermediate shaft, the intermediate shaft is fixedly connected to the left stainless steel disc, and the right damping member can be a right stainless steel disc. The left stainless steel disc and the right stainless steel disc fit tightly together, and the pre-stressed installation ensures that the friction force is a fixed value, thereby achieving the required threshold of the pitch damper 6.

[0056] In some embodiments of the present application, a gyroscope 11 is provided in the upper chamber. With this structure, the gyroscope 11 can provide a stable azimuth reference, further improving the accuracy of azimuth angle adjustment and pitch angle adjustment of the two-dimensional motion platform.

[0057] In some embodiments of the present application, the two-dimensional motion platform further includes a tripod 13 and a quick-release latch, with the mounting plate 10 secured to the tripod 13 via the quick-release latch. This structure, with the tripod 13 supporting the mounting plate 10, improves the stability of the two-dimensional motion platform and the measuring device. The quick-release latch secures the mounting plate 10 to the tripod 13, making assembly and disassembly of the mounting plate 10 and the tripod 13 more convenient.

[0058] In some embodiments of the present application, the quick-disassembly lock may include a clip, a bolt and a nut. The clip is fixed on the tripod 13 and is clamped to the mounting base 10. The bolt passes through the mounting base 10 and the tripod 13 in sequence and is fastened to the nut to fasten the mounting base 10 and the tripod 13.

[0059] In some embodiments of the present application, a dovetail groove structure and a stainless steel wear-resistant sheet are provided on the mounting base 10 to make the connection between the mounting base 10 and the tripod 13 more stable.

[0060] In some embodiments of the present application, a bearing is provided on the fixed shaft, the first worm gear 2 includes a shaft hole, the inner ring of the bearing is fixed to the outer circumference of the fixed shaft, and the outer ring of the bearing is fixed in the shaft hole of the first worm gear 2. This structure can make the connection between the first worm gear 2 and the fixed shaft more stable.

[0061] In some embodiments of the present application, both the azimuth and pitch angle adjustment assemblies are equipped with micro-gear reducers. This structure, utilizing the micro-gear reducers for speed reduction, can increase the overall reduction ratio of the azimuth and pitch angle adjustment assemblies, thereby further improving the accuracy of azimuth and pitch angle adjustment.

[0062] In some embodiments of the present application, in the azimuth angle adjustment assembly, the micro gear reducer can be arranged between the first worm and the first hand wheel 9, and in the pitch angle adjustment assembly, the micro gear reducer can be arranged between the connecting shaft and the second hand wheel.

[0063] In some embodiments of the present application, in the azimuth angle adjustment component, the reduction ratio of the micro gear reducer is 10, the reduction ratio of the worm gear pair composed of the first worm wheel 2 and the first worm is 60, and the overall reduction ratio of the azimuth angle adjustment component is 1:600, so that the azimuth angle adjustment component has the ability of small size, high torque, and short-time rapid circular motion.

[0064] In some embodiments of the present application, in the pitch angle adjustment assembly, the reduction ratio of the micro gear reducer is 21:1, the module of the bevel gear pair composed of the first bevel gear and the second bevel gear is 0.5, and the reduction ratio is 1:1, the module of the worm gear pair composed of the second worm gear 5 and the second worm is 0.5, and the reduction ratio is 50:1. The total reduction ratio of the pitch angle adjustment assembly is 1050:1, thereby achieving high-precision self-locking adjustment of the pitch angle within the range of ±25°.

[0065] In some embodiments of the present application, the embodiments of the present application combine a micro gear reducer, a small-module bevel gear pair and a worm gear transmission, especially a transmission design implemented in a small space, effectively utilizing a limited space to design a transmission mechanism with a large transmission ratio, so that the output torque of the device is greatly amplified.

[0066] In some embodiments of the present application, the first handwheel 9 and the second handwheel each include a wheel body and a folding handle. The wheel body is annular in structure, and a mounting groove is provided on the inner annular surface of the wheel body. The mounting groove is arranged along the axial direction of the wheel body and opens toward the outside. One end of the folding handle is rotatably connected to the mounting groove. This structure makes the folding handle more convenient to use and can also reduce the overall size of the two-dimensional motion platform.

[0067] In some embodiments of the present application, in the folded state, the folding handle can be embedded in the groove of the handwheel, and the width of both sides of the two-dimensional motion platform can be reduced by 57 mm. When in use, the folding handle can be folded out.

[0068] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0069] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0070] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0071] The above is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention should not be considered to be limited to these descriptions. For those skilled in the art of the present invention, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should be considered to fall within the scope of protection of the present invention.

Claims

1. A miniaturized portable two-dimensional motion platform, characterized in that: The chamber comprises a box body, a mounting base, an azimuth angle adjustment component, and a pitch angle adjustment component. A partition is provided in the box body, and the partition divides the internal space of the box body into an upper chamber and a lower chamber. The azimuth angle adjustment assembly includes a first handwheel, a first worm, a first worm gear, an azimuth damper and an azimuth encoder, the first handwheel and the first worm are fixedly connected, the first worm is rotatably connected to the housing, the first worm is meshed with the first worm gear, a fixed shaft is provided in the lower chamber, the fixed shaft is fixedly connected to the partition, the first worm gear is mounted on the fixed shaft and is rotatably connected to the fixed shaft, the azimuth damper includes an upper damping member and a lower damping member, the upper damping member is pressed against the lower damping member, the azimuth encoder includes a first stator and a first rotor, the first stator is fixedly connected to the housing, the first rotor is rotatably connected to the first stator, the upper damping member is fixedly connected to the first worm gear, the lower damping member is fixedly connected to the first rotor, and the mounting base is arranged outside the housing and fixedly connected to the rotor; The pitch angle adjustment assembly is mounted on the box body, and the pitch angle adjustment assembly includes a support plate for mounting the measuring device. The pitch angle adjustment assembly is used to adjust the pitch angle of the measuring device.

2. The miniaturized portable two-dimensional motion platform according to claim 1, characterized in that: The pitch angle adjustment assembly further includes a first vertical plate, a second vertical plate, a first rotating shaft and a second rotating shaft, wherein the first vertical plate and the second vertical plate are respectively connected to two sides of the support plate, and the first vertical plate, the support plate and the second vertical plate form a U-shaped bracket; The first rotating shaft and the second rotating shaft are respectively arranged on both sides of the box body, one end of the first rotating shaft is connected to the first vertical plate, and the other end extends into the box body, one end of the second rotating shaft is connected to the second vertical plate, and the other end extends into the box body, and the first rotating shaft and the second rotating shaft are both rotatably connected to the box body.

3. The miniaturized portable two-dimensional motion platform according to claim 2, characterized in that: The pitch angle adjustment assembly further includes a second hand wheel, a connecting shaft, a first bevel gear, a second bevel gear, a second worm and a second worm gear; The second handwheel and the first bevel gear are respectively connected to the two ends of the connecting shaft, the connecting shaft and the box are rotatably connected, the second bevel gear is fixedly connected to the second worm, the first bevel gear and the second bevel gear are meshed, the second worm gear is fixedly connected to the first rotating shaft, and the second worm gear and the second worm gear are meshed.

4. The miniaturized portable two-dimensional motion platform according to claim 3, characterized in that: The pitch angle adjustment assembly also includes a pitch encoder, which includes a second stator and a second rotor. The second stator is fixedly connected to the housing, the second rotor is rotationally connected to the second stator, and the second rotor is fixedly connected to the second rotating shaft.

5. The miniaturized portable two-dimensional motion platform according to claim 3, characterized in that: The pitch angle adjustment assembly further includes a pitch damper, which includes a left damper and a right damper. The left damper is fixed on the second rotating shaft, and the right damper is fixed on the box. The left damper presses against the right damper.

6. The miniaturized portable two-dimensional motion platform according to claim 1, characterized in that: A gyroscope is provided in the upper chamber.

7. The miniaturized portable two-dimensional motion platform according to claim 1, characterized in that: It also includes a tripod and a quick-detachable lock buckle, and the mounting base plate is fixed to the tripod via the quick-detachable lock buckle.

8. The miniaturized portable two-dimensional motion platform according to claim 1, characterized in that: A bearing is provided on the fixed shaft, the first worm gear includes a shaft hole, the inner ring of the bearing is fixed on the outer circumferential surface of the fixed shaft, and the outer ring of the bearing is fixed in the shaft hole of the first worm gear.

9. The miniaturized portable two-dimensional motion platform according to claim 1, characterized in that: The azimuth angle adjustment component and the pitch angle adjustment component are both provided with a micro gear reducer.

10. The miniaturized portable two-dimensional motion platform according to claim 3, characterized in that: The first handwheel and the second handwheel both include a wheel body and a folding handle. The wheel body is an annular structure. A mounting groove is provided on the inner annular surface of the wheel body. The mounting groove is arranged along the axial direction of the wheel body and opens toward the outside. One end of the folding handle is rotatably connected to the mounting groove.

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