Synchronous belt adjustment device, mechanical arm tilting assembly and unmanned aerial vehicle

Abstract

The present application relates to the technical field of unmanned aerial vehicles, and in particular to a synchronous belt adjustment device, a mechanical arm tilt assembly and a UAV, wherein the synchronous belt adjustment device comprises: a tensioning wheel, an adjustment bracket, a support seat and an adjustment mechanism, wherein the support seat is arranged on the servo mounting frame; the adjustment bracket is hinged to the support seat; the tensioning wheel is arranged at the open end of the adjustment bracket; and the adjustment mechanism is arranged on the adjustment bracket. During installation, the servo mounting frame and its supporting parts are first installed on the outer shell; then, the tensioning wheel is installed on the adjustment bracket; then, the adjustment bracket is installed on the support seat, and the tensioning wheel is pressed on the synchronous belt; finally, the adjustment mechanism is installed, and the tensioning degree of the synchronous belt is adjusted using the adjustment mechanism. The synchronous belt is tensioned by a tensioning wheel, which reduces the installation space, and can be operated on one side during installation, which is more convenient to install; when the tensioning degree of the synchronous belt needs to be adjusted, only one screw needs to be adjusted, which is faster to operate.

Description

Technical Field

[0001] The present application relates to the technical field of unmanned aerial vehicles, and in particular to a synchronous belt adjustment device, a mechanical arm tilting assembly and a unmanned aerial vehicle. Background Art

[0002] In recent years, drone technology has developed by leaps and bounds. Due to its advantages of low cost, good maneuverability, strong survivability, and no risk of casualties, it has a very broad prospect in the military and civilian fields. At present, drones are widely used in aerial photography, agriculture, plant protection, micro selfies, express transportation, disaster relief, wildlife observation, infectious disease monitoring, surveying and mapping, news reporting, power inspection, disaster relief, film and television shooting, creating romance, etc.

[0003] The mechanical arm tilt assembly in the UAV is a key component, and its main function is to realize the tilt of the propeller plane during the take-off, level flight and landing of the UAV. Especially in the take-off and landing stages, the mechanical arm tilt assembly can effectively control the attitude of the UAV to ensure its smooth take-off and landing.

[0004] The robot arm tilt assembly adopts synchronous belt drive. The tension of the synchronous belt needs to be adjusted after installation. However, in the traditional method, the synchronous belt is tightened by screws. During installation, sufficient installation space needs to be reserved for screw tensioning. At the same time, the parts need to be flipped and operated on multiple sides, which makes the installation more complicated. Utility Model Content

[0005] The present application aims to solve at least one of the technical problems existing in the prior art or related art.

[0006] To this end, the present application provides a synchronous belt adjustment device. When installing, first install the servo mounting frame and its supporting parts on the housing; then install the tensioning wheel on the adjustment bracket; then install the adjustment bracket on the support seat, and press the tensioning wheel on the synchronous belt; finally, install the adjustment mechanism, and use the adjustment mechanism to adjust the height of the tensioning wheel, thereby adjusting the tension of the synchronous belt. The synchronous belt is tensioned by the tensioning wheel, which reduces the installation space, and can be operated on one side during installation, which is more convenient to install; when the tension of the synchronous belt needs to be adjusted, only one screw needs to be adjusted, which is faster to operate.

[0007] The present application also provides a robot arm tilting assembly including the above-mentioned synchronous belt adjustment device, and a drone including the above-mentioned synchronous belt adjustment device or the above-mentioned robot arm tilting assembly.

[0008] According to the first aspect of the present application, a synchronous belt adjustment device is provided, comprising: a tensioning wheel, an adjustment bracket, a support seat and an adjustment mechanism, wherein the support seat is arranged on a servo mounting frame; the adjustment bracket comprises: an open end and a hinged end, the open end is connected to the hinged end, and the hinged end is hinged to the support seat; the tensioning wheel is arranged at the open end, and the tensioning wheel is used to tension the synchronous belt; the adjustment mechanism is arranged on the adjustment bracket, and the adjustment mechanism is used to adjust the hinge angle between the adjustment bracket and the support seat.

[0009] Optionally, a synchronous groove is provided on the tensioning wheel, and the synchronous groove is used to accommodate the synchronous belt.

[0010] Optionally, the adjustment bracket also includes: a hinged shaft, which is a hinge whose hinge end is hinged to the support seat.

[0011] Optionally, a retaining spring is provided on the hinged shaft, and the retaining spring is used to fix the hinged shaft.

[0012] Optionally, the adjustment bracket further includes: a rotating shaft, through which the tensioning wheel is arranged at the open end, and the rotating shaft is used to enable the tensioning wheel to rotate freely.

[0013] Optionally, the rotating shaft is provided with threads, and the rotating shaft is fixed to the open end via the threads.

[0014] Optionally, the adjustment mechanism is a screw, an adjustment hole is provided on the hinged end, and the screw passes through the adjustment hole and is threadedly connected to the support seat.

[0015] Optionally, the support seat includes: an articulation groove and an adjustment platform, the articulation groove is articulated with the articulation end, and the adjustment platform is provided with a screw hole, which is threadedly connected to the screw.

[0016] A robot arm tilting assembly provided in accordance with an embodiment of the second aspect of the present application includes the synchronous belt adjustment device in the first aspect or its various implementations.

[0017] According to an embodiment of the third aspect of the present application, a drone is provided, comprising the synchronous belt adjustment device in the first aspect or its various implementations, or the robotic arm tilt assembly in the second aspect or its various implementations.

[0018] One of the above technical solutions has at least the following advantages or beneficial effects:

[0019] A synchronous belt adjustment device provided in an embodiment of the present application includes: a tensioning wheel, an adjustment bracket, a support seat and an adjustment mechanism, wherein the support seat is arranged on a steering gear mounting frame; the adjustment bracket includes: an open end and a hinged end, the open end is connected to the hinged end, and the hinged end is hinged to the support seat; the tensioning wheel is arranged at the open end, and the tensioning wheel is used to tension the synchronous belt; the adjustment mechanism is arranged on the adjustment bracket, and the adjustment mechanism is used to adjust the hinge angle between the adjustment bracket and the support seat. During installation, the steering gear mounting frame and its matching parts are first installed on the housing; then, the tensioning wheel is installed on the adjustment bracket; then, the adjustment bracket is installed on the support seat, and the tensioning wheel is pressed on the synchronous belt; finally, the adjustment mechanism is installed, and the height position of the tensioning wheel is adjusted by the adjustment mechanism, thereby adjusting the tension of the synchronous belt. The synchronous belt is tensioned by the tensioning wheel, which reduces the installation space, and can be operated on one side during installation, which is more convenient to install; when the tension of the synchronous belt needs to be adjusted, only one screw needs to be adjusted, which is faster to operate.

[0020] The robot arm tilting assembly provided in the embodiment of the present application is provided with the above-mentioned synchronous belt adjustment device. Since the synchronous belt adjustment device has the above-mentioned technical effects, the robot arm tilting assembly provided with the synchronous belt adjustment device should also have corresponding technical effects.

[0021] The drone provided in the embodiment of the present application is provided with the above-mentioned synchronous belt adjustment device or the mechanical arm tilting assembly. Since the synchronous belt adjustment device has the above-mentioned technical effects, the drone provided with the synchronous belt adjustment device should also have the corresponding technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0023] Figure 1 A schematic structural diagram of a synchronous belt adjustment device provided in an embodiment of the present application is shown;

[0024] Figure 2 An exploded view of a synchronous belt adjustment device provided in an embodiment of the present application is shown;

[0025] Figure 3 A cross-sectional view of a synchronous belt adjustment device provided in an embodiment of the present application is shown.

[0026] [Description of Reference Numerals]

[0027] 1. Tensioning wheel, 11. Synchronous groove, 2. Adjustment bracket, 21. Open end, 22. Articulated end, 23. Rotating shaft, 24. Articulated shaft, 25. Retaining spring, 26. Adjustment hole, 3. Support seat, 31. Articulated groove, 32. Adjustment table, 4. Adjustment mechanism, 5. Synchronous belt, 6. Servo mounting bracket, 7. Arm, 8. Casing. DETAILED DESCRIPTION

[0028] In order to better explain the present application and facilitate understanding, the present application is described in detail below in conjunction with the accompanying drawings through specific implementation methods. Figure 1 The orientation of the tension wheel 1 is used as a reference. The position of the tension wheel 1 relative to the synchronous belt 5 is defined as "upper"; the position of the tension wheel 1 relative to the housing 8 is defined as "inner".

[0029] As mentioned above, drones, abbreviated as "UAV", are unmanned aircraft controlled by radio remote control equipment and self-contained program control devices. Compared with manned aircraft, drones are more suitable for tasks that may be dangerous or difficult for humans to complete directly. Drones can be divided into military and civilian applications according to their application areas. In the military, drones can be used for a variety of tasks such as reconnaissance and target strikes; in the civilian application, drones are more widely used, such as aerial photography, agricultural monitoring, environmental monitoring, wildlife monitoring, logistics distribution, emergency rescue, etc. Especially in the field of aerial photography, drones are equipped with high-definition cameras and a variety of sensors that can achieve remote monitoring and shooting, and are widely used in film shooting, building monitoring and other fields.

[0030] The mechanical arm tilt assembly is a key component in the UAV. Its main function is to realize the tilt of the propeller plane during takeoff, level flight and landing. Especially in the takeoff and landing stages, this component can effectively control the attitude of the UAV to ensure its smooth takeoff and landing. Specifically, the mechanical arm tilt assembly consists of multiple parts, including the housing, the arm, the servo, the arm tilt driving wheel, the synchronous belt, the servo mounting frame, etc. The servo is fixed in the housing through the servo mounting frame, and the servo is connected to the arm tilt driving wheel through the synchronous belt to control the arm tilt. When working, the servo and the arm are transmitted through the tension generated by the synchronous belt. The tension of the synchronous belt affects the transmission effect of the servo, which is crucial to maintaining the flight stability of the UAV. However, in the traditional method, the synchronous belt is tightened with screws. During installation, the screw tensioning needs to reserve sufficient installation space, and the parts need to be turned over and operated on multiple sides, which makes the installation more complicated.

[0031] In order to solve at least one of the technical problems existing in the prior art or related art, the present application provides a synchronous belt adjustment device, a mechanical arm tilting assembly and a UAV, the synchronous belt adjustment device comprises: a tensioning wheel, an adjustment bracket, a support seat and an adjustment mechanism, wherein the support seat is arranged on the steering gear mounting frame; the adjustment bracket comprises: an open end and a hinged end, the open end is connected to the hinged end, and the hinged end is hinged to the support seat; the tensioning wheel is arranged at the open end, and the tensioning wheel is used to tension the synchronous belt; the adjustment mechanism is arranged on the adjustment bracket, and the adjustment mechanism is used to adjust the hinge angle between the adjustment bracket and the support seat. During installation, the steering gear mounting frame and its matching parts are first installed on the housing; then, the tensioning wheel is installed on the adjustment bracket; then the adjustment bracket is installed on the support seat, and the tensioning wheel is pressed on the synchronous belt; finally, the adjustment mechanism is installed, and the height position of the tensioning wheel is adjusted by the adjustment mechanism, thereby adjusting the tension of the synchronous belt. The synchronous belt is tensioned by the tensioning wheel, which reduces the installation space, and can be operated on one side during installation, which is more convenient to install; when the tension of the synchronous belt needs to be adjusted, only one screw needs to be adjusted, and the operation is faster.

[0032] The following describes a synchronous belt adjustment device, a robotic arm tilt assembly, and a drone according to some embodiments provided by the present application with reference to the accompanying drawings.

[0033] See also Figures 1 to 3 A synchronous belt adjustment device provided in an embodiment of the first aspect of the present application includes: a tensioning wheel 1, an adjustment bracket 2, a support seat 3 and an adjustment mechanism 4, wherein the support seat 3 is arranged on the servo mounting frame 6; the adjustment bracket 2 includes: an open end 21 and a hinged end 22, the open end 21 is connected to the hinged end 22, and the hinged end 22 is hinged to the support seat 3; the tensioning wheel 1 is arranged at the open end 21, and the tensioning wheel 1 is used to tension the synchronous belt 5; the adjustment mechanism 4 is arranged on the adjustment bracket 2, and the adjustment mechanism 4 is used to adjust the hinge angle between the adjustment bracket 2 and the support seat 3.

[0034] The support seat 3 and the servo mounting frame 6 can be formed in an integral manner, which has the advantages of simple structure, high reliability, low cost and high safety; the support seat 3 and the servo mounting frame 6 can also be connected in a detachable manner, such as threaded connection, bayonet connection, pin connection, etc. The threaded connection is to connect two plates together using threads. This method has a simple structure, high reliability, and is very convenient for disassembly and replacement of the connecting parts; the bayonet connection is to connect through the convex and concave structures on two or more parts, which is compact in structure and firmly connected; the pin connection realizes the connection between parts by the cooperation of the pin and the pin hole. This method has a simple structure and is easy to disassemble and assemble.

[0035] The open end 21 and the hinged end 22 can be formed in one piece. The open end 21 is used to accommodate the tensioning wheel 1, so that the tensioning wheel 1 can contact the synchronous belt 5. The hinged end 22 is hinged to the support seat 3, and the tensioning wheel 1 is driven to move by the rotation of the hinged end 22. The tensioning wheel 1 is a cylindrical roller. The tensioning wheel 1 contacts the synchronous belt 5, and the tension of the synchronous belt 5 is adjusted by squeezing. The hinge angle between the adjustment bracket 2 and the support seat 3 is adjusted by the adjustment mechanism 4. When the hinge angle between the adjustment bracket 2 and the support seat 3 becomes smaller, the squeezing force between the tensioning wheel 1 and the synchronous belt 5 becomes larger, so that the tension of the synchronous belt 5 increases; when the hinge angle between the adjustment bracket 2 and the support seat 3 becomes larger, the squeezing force between the tensioning wheel 1 and the synchronous belt 5 becomes smaller, so that the tension of the synchronous belt 5 decreases.

[0036] During installation, first install the machine arm 7, synchronous belt 5, servo mounting frame 6 and its supporting parts onto the housing 8. If the support seat 3 and the servo mounting frame 6 are formed in an integrated manner, the support seat 3 is also installed after the servo mounting frame 6 is installed; if the support seat 3 and the servo mounting frame 6 are connected in a detachable manner, the support seat 3 is installed onto the servo mounting frame 6 after the servo mounting frame 6 is installed. Then, install the tensioning wheel 1 onto the open end 21 of the adjustment bracket 2; then install the hinged end 22 of the adjustment bracket 2 onto the support seat 3, and press the tensioning wheel 1 onto the synchronous belt 5. Finally, install the adjustment mechanism 4, and use the adjustment mechanism 4 to adjust the height of the tensioning wheel 1, thereby adjusting the tension of the synchronous belt 5.

[0037] In an illustrative embodiment, the tension wheel 1 is provided with a synchronous groove 11, which is used to accommodate the synchronous belt 5. The synchronous groove 11 and the synchronous belt 5 are clearance-matched, so that the synchronous belt 5 can flexibly perform relative movement in the synchronous groove 11 without being restricted by being too tight or too loose. This arrangement can reduce the friction and wear between the synchronous belt 5 and the tension wheel 1, and can also prevent the synchronous belt 5 and the tension wheel 1 from derailing, thereby improving the operating efficiency and stability.

[0038] In an illustrative embodiment, the adjustment bracket 2 further includes: an articulated shaft 24, which is a hinge that articulates the articulated end 22 and the support seat 3. The articulated end 22 and the support seat 3 are respectively provided with corresponding through holes, and the articulated shaft 24 passes through the through holes on the articulated end 22 and the support seat 3 as a hinge, so that the structure is simple and easy to install.

[0039] In an illustrative embodiment, a circlip 25 is provided on the hinge shaft 24, and the circlip 25 is used to fix the hinge shaft 24. After the hinge shaft 24 passes through the through holes on the hinge end 22 and the support seat 3, the circlip 25 is placed at a predetermined position on the hinge shaft 24. Special tools such as circlip pliers or circlip clamps are used to press the circlip 25 into the notch on the hinge shaft 24. The circlip 25 has a simple structure and is easy to install and remove in a narrow space, which can simplify the assembly process and improve work efficiency.

[0040] In an illustrative embodiment, the adjustment bracket 2 further includes: a rotating shaft 23, through which the tension wheel 1 is arranged at the open end 21, and the rotating shaft 23 is used to make the tension wheel 1 rotate freely. The tension wheel 1 and the open end 21 are respectively provided with corresponding through holes, and the rotating shaft 23 passes through the through holes on the tension wheel 1 and the open end 21 to fix the tension wheel 1 on the open end 21; the tension wheel 1 can rotate freely on the rotating shaft 23.

[0041] In an exemplary embodiment, the rotating shaft 23 is provided with threads, and the rotating shaft 23 is fixed to the open end 21 by threads. The through hole of the open end 21 is also provided with corresponding threads, and the rotating shaft 23 is fixed to the open end 21 by threaded connection. In this way, the components are tightly connected by screwing together, without complicated additional accessories, and the structure is compact and easy to install and disassemble.

[0042] In an illustrative embodiment, Figure 3 As shown, the adjustment mechanism 4 is a screw, and an adjustment hole 26 is provided on the hinge end 22. The screw passes through the adjustment hole 26 and is threadedly connected to the support seat 3. When the screw moves downward, the hinge angle between the adjustment bracket 2 and the support seat 3 is reduced, that is, the adjustment bracket 2 moves downward, which will drive the tension wheel 1 to press the synchronous belt 5, so that the tension of the synchronous belt 5 is increased; when the screw moves upward, the hinge angle between the adjustment bracket 2 and the support seat 3 is increased under the tension of the synchronous belt 5, that is, the adjustment bracket 2 moves upward, which will drive the tension wheel 1 to loosen the synchronous belt 5, so that the tension of the synchronous belt 5 is reduced.

[0043] In an illustrative embodiment, the support seat 3 includes: an articulation groove 31 and an adjustment platform 32, the articulation groove 31 is articulated with the articulation end 22, and the adjustment platform 32 is provided with a screw hole, which is threadedly connected with a screw. The articulation end 22 can rotate in the articulation groove 31, and the screw hole on the adjustment platform 32 corresponds to the adjustment hole 26, which is used for the screw to be threadedly connected, so that the screw can move up and down within the travel of the thread. This structure is simple and easy to install. When the tension of the synchronous belt needs to be adjusted, only one screw needs to be adjusted, and the operation is faster.

[0044] Since the robot arm tilting assembly provided in this embodiment has the synchronous belt adjustment device provided in any of the above embodiments, the robot arm tilting assembly has all the beneficial effects of the synchronous belt adjustment device provided in any of the above embodiments, which will not be repeated here.

[0045] Since the drone provided in this embodiment has the synchronous belt adjustment device or the robotic arm tilting assembly provided in any of the above embodiments, the drone has all the beneficial effects of the synchronous belt adjustment device or the robotic arm tilting assembly provided in any of the above embodiments, which will not be repeated here.

[0046] In the description of the present application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the feature. In the description of the present application, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0047] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0048] In the present application, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0049] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "exemplary embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0050] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A synchronous belt adjustment device, characterized in that: include: A tensioning wheel (1), an adjustment bracket (2), a support seat (3) and an adjustment mechanism (4), wherein: The support seat (3) is arranged on the steering gear mounting frame (6); The adjustment bracket (2) comprises: an open end (21) and a hinged end (22), the open end (21) is connected to the hinged end (22), and the hinged end (22) is hinged to the support seat (3); The tensioning wheel (1) is arranged at the open end (21), and the tensioning wheel (1) is used to tension the synchronous belt (5); The adjustment mechanism (4) is arranged on the adjustment bracket (2), and the adjustment mechanism (4) is used to adjust the hinge angle between the adjustment bracket (2) and the support seat (3).

2. A synchronous belt adjustment device according to claim 1, characterized in that: The tension wheel (1) is provided with a synchronization groove (11), and the synchronization groove (11) is used to accommodate the synchronization belt (5).

3. A synchronous belt adjustment device as claimed in claim 1, characterized in that: The adjustment bracket (2) further comprises: a hinged rotating shaft (24), wherein the hinged rotating shaft (24) is a hinge for hinge-connecting the hinged end (22) and the support seat (3).

4. A synchronous belt adjustment device as claimed in claim 3, characterized in that: The hinged rotating shaft (24) is provided with a retaining spring (25), and the retaining spring (25) is used to fix the hinged rotating shaft (24).

5. A synchronous belt adjustment device as claimed in claim 1, characterized in that: The adjustment bracket (2) further comprises: a rotating shaft (23), the tension wheel (1) being arranged at the open end (21) via the rotating shaft (23), and the rotating shaft (23) being used to enable the tension wheel (1) to rotate freely.

6. A synchronous belt adjustment device as claimed in claim 5, characterized in that: The rotating shaft (23) is provided with a thread, and the rotating shaft (23) is fixed to the open end (21) via the thread.

7. A synchronous belt adjustment device as claimed in claim 1, characterized in that: The adjustment mechanism (4) is a screw, and an adjustment hole (26) is provided on the hinged end (22). The screw passes through the adjustment hole (26) and is threadedly connected to the support seat (3).

8. A synchronous belt adjustment device as claimed in claim 7, characterized in that: The support seat (3) comprises: a hinge groove (31) and an adjustment platform (32); the hinge groove (31) is hinged to the hinge end (22); the adjustment platform (32) is provided with a screw hole, and the screw hole is threadedly connected to the screw.

9. A mechanical arm tilting assembly, characterized in that: include: A synchronous belt adjustment device as described in any one of claims 1 to 8.

10. A drone, characterized in that: include: A synchronous belt adjustment device as described in any one of claims 1 to 8 or a robot arm tilting assembly as described in claim 9.

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