Airborne power amplifier multi-degree-of-freedom joint for aircraft

Abstract

The invention discloses an airborne power amplifier multi-degree-of-freedom connector for an aircraft, and belongs to the technical field of connecting devices of aircraft airborne equipment.The airborne power amplifier multi-degree-of-freedom connector is characterized in that the airborne power amplifier multi-degree-of-freedom connector comprises a connector body, a fixing cylinder and a plurality of guiding assemblies, the connector body is sleeved with the fixing cylinder, and a distance is reserved between the connector body and the inner wall of the fixing cylinder; the guide assembly is used for connecting the joint body and the fixing cylinder; the guide assembly comprises a supporting column, a shaft rod and a guide rod, the supporting column is rotationally connected with the fixing cylinder, the guide rod is rotationally connected with the supporting column through the shaft rod, the axis of the shaft rod is perpendicular to the length direction of the supporting column and the axis of the fixing cylinder, the guide rod is connected with the connector body, and the length direction of the guide rod is parallel to the axis of the fixing cylinder; a plurality of elastic pieces are further arranged between the connector body and the fixing cylinder and distributed on the periphery of the connector body, one end of each elastic piece is connected with the connector body, the other end of each elastic piece is connected with the inner wall of the fixing cylinder, and the effect of improving the multi-degree-of-freedom adjusting capacity of the connector is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of connection devices for aircraft onboard equipment, and in particular to a multi-degree-of-freedom joint for an onboard power amplifier of an aircraft. Background Art

[0002] Aircraft play a vital role in the field of modern aviation and are widely used in military and civilian fields. As aircraft performance continues to improve, the requirements for airborne equipment are becoming increasingly stringent. In particular, the stability and reliability of the key component of the airborne power amplifier are not only related to the quality of communication, but also directly affect the safety and efficiency of the entire flight system. In order to ensure the normal operation of these devices in harsh environments, researchers have been exploring more advanced connection devices to improve the stability and reliability of signal transmission.

[0003] In the existing aircraft airborne power amplifier connection devices, common design schemes include fixed connection and simple rotary joint. Although the fixed connection method has a simple structure, it cannot adapt to the vibration and impact generated during flight, which can easily lead to connection failure. Although the simple rotary joint can alleviate the vibration problem to a certain extent, it has limitations in multi-degree-of-freedom adjustment and is difficult to meet the use requirements under complex working conditions. In addition, some designs use flexible connectors, such as rubber pads or springs. These methods perform well in vibration reduction, but the flexibility in multi-degree-of-freedom adjustment is still insufficient.

[0004] However, the above-mentioned prior art has some significant defects in practical applications. First, neither fixed connections nor simple rotating joints can effectively absorb the high-frequency vibrations generated during flight, making the equipment vulnerable to damage. Secondly, these traditional connection methods have limited capabilities in multi-degree-of-freedom adjustment and cannot flexibly respond to complex dynamic changes. Finally, although the existing flexible connectors have improved in vibration reduction, their structural stability is poor and they are prone to fatigue failure after long-term use. Therefore, how to design an airborne power amplifier connector that can effectively absorb vibrations and achieve flexible adjustment in multiple degrees of freedom is a technical problem that needs to be solved urgently. Summary of the invention

[0005] In order to improve the multi-degree-of-freedom adjustment capability of a joint, the present invention provides a multi-degree-of-freedom joint for an onboard power amplifier of an aircraft.

[0006] The present invention provides a multi-degree-of-freedom joint for an onboard power amplifier of an aircraft, which adopts the following technical solution: A multi-degree-of-freedom joint for an onboard power amplifier of an aircraft, comprising a joint body, a fixed cylinder and a plurality of guide assemblies, wherein the fixed cylinder is sleeved on the joint body, a distance is left between the joint body and the inner wall of the fixed cylinder, and the guide assembly is arranged between the fixed cylinder and the joint body, and is used to connect the joint body and the fixed cylinder; the guide assembly comprises a support column, an axle rod and a guide rod, the support column is rotatably connected to the fixed cylinder, the length direction of the support column is perpendicular to the axis of the fixed cylinder, the guide rod is rotatably connected to the support column through the axle rod, the axis of the axle rod is simultaneously perpendicular to the length direction of the support column and the axis of the fixed cylinder, the guide rod is connected to the joint body, and the length direction of the guide rod is parallel to the axis of the fixed cylinder; a plurality of elastic members are also arranged between the joint body and the fixed cylinder, the plurality of elastic members are distributed around the joint body, one end of the elastic member is connected to the joint body, and the other end is connected to the inner wall of the fixed cylinder.

[0007] By adopting the above technical solution, the design of multiple guide components and elastic parts between the joint body and the fixed cylinder enables the joint to move and adjust freely in multiple directions, so as to adapt to the needs of different installation environments and working conditions. Specifically, the joint body may tilt when subjected to external force. At this time, the joint body can drive the guide rod to rotate around the shaft rod. At the same time, the joint body will also generate a force that interferes with the guide rod when the shaft rod rotates, so that the guide rod and the shaft rod drive the support column to rotate. Since the axis of the support column is perpendicular to the axis of the shaft rod, the joint body can move in multiple angles and directions without interference. At the same time, multiple guide components work together to ensure that the joint body can still maintain a stable motion trajectory when subjected to external force, thereby improving the reliability and safety of the system. At this time, the elastic part can provide a buffering force for the joint body, effectively absorb and disperse external vibrations, further improve the service life and performance stability of the equipment, and the design of the elastic part is also convenient for the joint body to reset. In summary, multiple elastic parts and multiple guide components complement each other, and can realize the flexible adjustment and stable connection of the aircraft airborne power amplifier connector.

[0008] Preferably, a connecting block is provided between the guide rod and the joint body, one end of the connecting block is connected to the guide rod, and the other end of the connecting block is connected to the joint body.

[0009] By adopting the above technical solution, the connecting block increases the height of the guide rod, effectively avoiding interference between the support column and the joint body, and ensuring the stability and reliability of the joint body during multi-degree-of-freedom movement.

[0010] Preferably, the connecting block is made of insulating material.

[0011] By adopting the above technical solution, the connection block is made of insulating material, which reduces the possibility of current passing through the connection block to other components, and improves the electrical safety of the entire joint. In addition, the insulating material can also reduce electromagnetic interference and ensure the stability of signal transmission.

[0012] Preferably, both ends of the guide rod are arranged in arc surfaces.

[0013] By adopting the above technical solution, the two ends of the guide rod are designed as arc structures, which can reduce the possibility of wear between the guide rod and other components, improve the smoothness and stability of the guide rod during movement, and thus improve the working performance of the entire multi-degree-of-freedom joint.

[0014] Preferably, the elastic member is a coil spring.

[0015] By adopting the above technical solution, using the coil spring as the elastic member can effectively buffer and absorb the impact force from different directions, and improve the stability and reliability of the joint in complex environments. The elasticity and recovery performance of the coil spring ensure that the joint can be quickly reset when subjected to external impact, ensuring the normal working state of the joint.

[0016] Preferably, the coil spring includes a plurality of first springs and a plurality of second springs, the plurality of first springs are distributed at intervals along the circumference of the joint body and form a first elastic group, the second springs are distributed at intervals along the circumference of the joint body and form a second elastic group, and the first elastic group and the second elastic group are arranged at intervals along the length direction of the joint body.

[0017] By adopting the above technical solution, the arrangement of the first spring and the second spring enables the joint body to maintain its position more stably when subjected to forces in different directions, thereby improving the anti-seismic performance of the multi-degree-of-freedom joint. The first elastic group and the second elastic group are arranged at intervals along the length direction of the joint body, so that energy can be effectively absorbed at different vibration frequencies, thereby improving the overall shock absorption effect of the joint.

[0018] Preferably, a plurality of the first springs are evenly distributed along the circumference of the joint body, a plurality of the second springs are evenly distributed along the circumference of the joint body, and the first springs and the second springs are staggeredly distributed along the circumference of the joint body.

[0019] By adopting the above technical solution, the first spring and the second spring are evenly distributed along the axis of the joint body, ensuring balanced force in all directions and further enhancing the stability of the joint. The circumferential staggered distribution of the first spring and the second spring in the joint body can achieve stable support of the joint body in all directions, reduce the problem of unbalanced force caused by uneven spring distribution, and improve the overall stability of the joint. At the same time, this staggered distribution design can also effectively disperse vibration energy, reduce the occurrence of resonance, and further improve the vibration resistance of the joint.

[0020] Preferably, the center of gravity of the joint body is located on the extension line of the axis of the support column.

[0021] By adopting the above technical solution, the center of gravity of the joint body is located on the extension line of the axis of the support column, making the joint more stable during movement, reducing vibration and shaking caused by center of gravity offset, and improving the reliability and service life of the joint.

[0022] Preferably, the joint body is provided with a fixed joint cooperatively connected therewith, the fixed joint is threadedly fixed to the joint body, and the elastic member is located on a side of the guide assembly away from the fixed joint.

[0023] By adopting the above technical solution, the threaded fixing method between the fixed joint and the joint body not only improves the stability and reliability of the connection, but also effectively prevents loosening caused by vibration or impact. In addition, the elastic member is located on the side of the guide assembly away from the fixed joint, so that during the installation process, the elastic member will not hinder the threaded connection between the fixed joint and the joint body, ensuring the convenience and efficiency of installation. And during the installation of the fixed joint, the multiple groups of guide assemblies are first subjected to the force from the fixed joint, which can better maintain the stability of the joint body.

[0024] In summary, the present invention has the following beneficial effects: 1. The design of multiple guide components and elastic parts between the connector body and the fixed tube enables the connector to move and adjust freely in multiple directions, so as to adapt to the needs of different installation environments and working conditions. Specifically, the connector body may tilt when subjected to external force. At this time, the connector body can drive the guide rod to rotate around the shaft rod. At the same time, the connector body will also generate a force that interferes with the guide rod during the rotation of the shaft rod, so that the guide rod and the shaft rod drive the support column to rotate. Since the axis of the support column is perpendicular to the axis of the shaft rod, the connector body can move in multiple angles and directions without interference. At the same time, multiple guide components work together to ensure that the connector body can maintain a stable motion trajectory when subjected to external force, thereby improving the reliability and safety of the system. At this time, the elastic part can provide a buffering force for the connector body, effectively absorb and disperse external vibrations, further improve the service life and performance stability of the equipment, and the design of the elastic part also facilitates the reset of the connector body. In summary, multiple elastic parts and multiple guide components complement each other, and can achieve flexible adjustment and stable connection of the aircraft's onboard power amplifier connector; 2. The elastic parts use springs to effectively buffer and absorb impact forces from different directions, improving the stability and reliability of the joint in complex environments. The position distribution of multiple springs enables the joint body to maintain its position more stably when subjected to forces from different directions, improving the seismic performance of the multi-degree-of-freedom joint, and balancing the forces in all directions, further enhancing the stability of the joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The present invention is a schematic diagram of the overall structure of a multi-degree-of-freedom joint for an onboard power amplifier of an aircraft.

[0026] Figure 2 It is a schematic diagram of the internal structure of the fixed cylinder.

[0027] Figure 3 It is a structural diagram of the guide component.

[0028] Figure 4 This is a diagram showing the state of the fixed joint being plugged into the joint body.

[0029] Description of reference numerals: 1. Joint body; 2. Fixed cylinder; 21. First through hole; 22. Second through hole; 3. Guide assembly; 31. Support column; 32. Shaft; 33. Guide rod; 4. Connecting block; 5. Elastic member; 51. First spring; 52. Second spring; 6. Fixed joint. DETAILED DESCRIPTION

[0030] In order to enable technicians in this field to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in the embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments.

[0031] In the description of the embodiments of the present application, words such as "for example" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "for example" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "for example" or "for example" is intended to present related concepts in a specific way.

[0032] In the description of the embodiments of the present application, the meaning of the term "multiple" refers to two or more. For example, multiple systems refer to two or more systems, and multiple screen terminals refer to two or more screen terminals. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. The terms "include", "comprise", "have" and their variations all mean "including but not limited to", unless otherwise specifically emphasized.

[0033] A multi-degree-of-freedom joint for an onboard power amplifier of an aircraft, referring to Figure 1 and Figure 2 , including a joint body 1, a fixed cylinder 2 and a plurality of guide components 3. The fixed cylinder 2 is sleeved on the joint body 1, and a distance is left between the joint body 1 and the inner wall of the fixed cylinder 2. The guide components 3 are arranged between the fixed cylinder 2 and the joint body 1, and are used to connect the joint body 1 and the fixed cylinder 2.

[0034] Reference Figure 2 The guide assembly 3 includes a support column 31, a shaft 32 and a guide rod 33. The support column 31 is rotatably connected to the fixed cylinder 2, and the length direction of the support column 31 is perpendicular to the axis of the fixed cylinder 2. The guide rod 33 is rotatably connected to the support column 31 through the shaft 32, and the axis of the shaft 32 is perpendicular to the length direction of the support column 31 and the axis of the fixed cylinder 2. The guide rod 33 is connected to the joint body 1, and the length direction of the guide rod 33 is parallel to the axis of the fixed cylinder 2. A plurality of elastic members 5 are also provided between the joint body 1 and the fixed cylinder 2, and the plurality of elastic members 5 are distributed around the joint body 1, and one end of the elastic member 5 is connected to the joint body 1, and the other end is connected to the inner wall of the fixed cylinder 2.

[0035] The joint body 1 may tilt when subjected to external forces. At this time, the joint body 1 can drive the guide rod 33 to rotate around the shaft 32. At the same time, the joint body 1 will also generate a force that interferes with the rotation of the guide rod 33 around the shaft 32, so that the guide rod 33 and the shaft 32 drive the support column 31 to rotate. Since the axis of the support column 31 is perpendicular to the axis of the shaft 32, the joint body 1 can move in multiple angles and directions without interference. At the same time, multiple guide components 3 work together to ensure that the joint body 1 can still maintain a stable motion trajectory when subjected to external forces, thereby improving the reliability and safety of the system. At this time, the elastic member 5 can provide a buffering force for the joint body 1, effectively absorb and disperse external vibrations, and further improve the service life and performance stability of the equipment.

[0036] Reference Figure 2 The connector body 1 includes a middle conductor, a first insulating layer, a shell and a first connecting wire, wherein the first insulating layer is wrapped around the middle conductor, the shell is wrapped around the first insulating layer, and the first insulating layer can isolate the shell from the middle conductor. The first connecting wire is electrically connected to the middle conductor.

[0037] Reference Figure 1 and Figure 2 The fixing tube 2 is cylindrical and hollow. The fixing tube 2 has a first through hole 21 and a second through hole 22 at both ends. The first through hole 21 and the second through hole 22 are both circular holes, and the diameter of the first through hole 21 is smaller than the diameter of the second through hole 22.

[0038] The different diameters of the two ends of the fixing tube 2 enable the first connecting line and the outer shell of the joint body 1 to pass through the corresponding through holes smoothly, while ensuring that the relative movement between the joint body 1 and the fixing tube 2 is more flexible, thereby improving the adaptability and reliability of the multi-degree-of-freedom joint.

[0039] The diameters of the first through hole 21 and the second through hole 22 are designed so that the joint body 1 does not interfere with the fixing tube 2 when the joint body 1 is tilted at an angle in the fixing tube 2 .

[0040] Reference Figure 2 In this embodiment, four groups of guide components 3 are provided. The four groups of guide components 3 are all arranged in the hollow part of the fixed cylinder 2 and are evenly distributed along the circumference of the joint body 1.

[0041] Reference Figure 2 The support column 31 can be rotatably connected to the fixed cylinder 2 through a micro bearing to reduce friction and improve rotation accuracy.

[0042] Reference Figure 2 The center of gravity of the joint body 1 is located on the extension line of the axis of the support column 31, which makes the joint more stable during movement, reduces vibration and shaking caused by the center of gravity shift, and improves the reliability and service life of the joint.

[0043] Reference Figure 2 and Figure 3 The shaft rod 32 is rotatably connected to the end of the support column 31 away from the fixed cylinder 2. The guide rod 33 is in the shape of a long strip, and the shaft rod 32 is located in the middle of the guide rod 33. Both ends of the guide rod 33 are provided with arc surfaces, which can reduce the possibility of wear between the guide rod 33 and other components, improve the smoothness and stability of the guide rod 33 during movement, and thus improve the working performance of the entire multi-degree-of-freedom joint.

[0044] Reference Figure 2 and Figure 3 A connecting block 4 is provided between the guide rod 33 and the joint body 1, one end of the connecting block 4 is fixedly connected to the guide rod 33, and the other end is fixedly connected to the joint body 1. The connecting block 4 is made of insulating material, such as silicone or rubber.

[0045] The connecting block 4 increases the height of the guide rod 33, effectively avoiding interference between the support column 31 and the connector body 1, and ensuring the stability and reliability of the connector body 1 during multi-degree-of-freedom movement. In addition, the connecting block 4 made of insulating material can effectively prevent the current from being transmitted to other components through the connecting block 4, thereby improving the electrical safety of the entire connector.

[0046] Reference Figure 4 The connector body 1 is plugged with a fixed connector 6 that matches the connector body, and the fixed connector 6 includes a pin, a second insulating layer, a shell, and a second connecting wire. The second insulating layer is wrapped around the pin, and the tip of the pin is plugged into the middle conductor, and the shell is threadedly connected to the shell. The second connecting wire is electrically connected to the pin.

[0047] Reference Figure 4 The elastic member 5 is arranged on a side of the guide assembly 3 away from the fixed joint 6, so that during the installation process, the elastic member 5 will not hinder the threaded connection between the fixed joint 6 and the joint body 1, ensuring the convenience and efficiency of the installation.

[0048] The threaded connection between the fixed joint 6 and the joint body 1 is not hindered by the flexible member, thus ensuring the convenience and efficiency of installation. In addition, during the installation of the fixed joint 6, the plurality of guide components 3 are first subjected to the force from the fixed joint 6, thus maintaining the stability of the joint body 1.

[0049] Reference Figure 4 The elastic member 5 is a coil spring, and the coil spring includes a first spring 51 and a second spring 52 .

[0050] There are multiple first springs 51 , and the multiple first springs 51 are evenly distributed along the axial direction of the joint body 1 . One end of the first spring 51 is fixedly connected to the joint body 1 , and the other end is fixedly connected to the inner wall of the fixing cylinder 2 .

[0051] There are multiple second springs 52 , and the multiple second springs 52 are evenly distributed along the axial direction of the joint body 1 . One end of the second spring 52 is fixedly connected to the joint body 1 , and the other end is fixedly connected to the inner wall of the fixing cylinder 2 .

[0052] The first spring 51 and the second spring 52 are evenly distributed along the axis of the joint body 1, ensuring balanced forces in all directions and further enhancing the stability of the joint.

[0053] Reference Figure 4 A plurality of first springs 51 form a first elastic group, a plurality of second springs 52 form a second elastic group, and the first elastic group and the second elastic group are spaced apart along the axial direction of the fixed tube 2. The first springs 51 and the second springs 52 are staggeredly distributed in the circumferential direction of the joint body 1, which can achieve stable support of the joint body 1 in all directions, further reduce the problem of unbalanced force caused by uneven distribution of springs, and improve the overall stability of the joint.

[0054] The operating principle of the present application is as follows: by setting a multi-degree-of-freedom guide assembly 3 and an elastic member 5, the joint body 1 is flexibly adjusted in multiple degrees of freedom directions, thereby adapting to the vibration and impact generated during flight. At the same time, the setting of the elastic member 5 can absorb the high-frequency vibration generated during flight, reduce the risk of damage to the equipment, and improve the stability and reliability of signal transmission. This design not only solves the problems existing in traditional fixed connections and simple rotary joints, but also performs well in multi-degree-of-freedom adjustment and vibration reduction, and is suitable for use in various complex working conditions.

[0055] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-degree-of-freedom joint for an onboard power amplifier of an aircraft, characterized in that: The invention comprises a joint body (1), a fixing cylinder (2) and a plurality of guide components (3), wherein the fixing cylinder (2) is sleeved on the joint body (1), a distance is left between the joint body (1) and the inner wall of the fixing cylinder (2), and the guide components (3) are arranged between the fixing cylinder (2) and the joint body (1) and are used to connect the joint body (1) and the fixing cylinder (2); The guide assembly (3) comprises a support column (31), a shaft (32) and a guide rod (33); the support column (31) is rotatably connected to the fixed cylinder (2); the length direction of the support column (31) is perpendicular to the axis of the fixed cylinder (2); the guide rod (33) is rotatably connected to the support column (31) via the shaft (32); the axis of the shaft (32) is perpendicular to both the length direction of the support column (31) and the axis of the fixed cylinder (2); the guide rod (33) is connected to the joint body (1); the length direction of the guide rod (33) is parallel to the axis of the fixed cylinder (2); A plurality of elastic members (5) are also provided between the joint body (1) and the fixing tube (2). The plurality of elastic members (5) are distributed around the joint body (1). One end of the elastic member (5) is connected to the joint body (1), and the other end is connected to the inner wall of the fixing tube (2).

2. The multi-degree-of-freedom joint for an onboard power amplifier of an aircraft according to claim 1, characterized in that: A connecting block (4) is provided between the guide rod (33) and the joint body (1); one end of the connecting block (4) is connected to the guide rod (33) and the other end is connected to the joint body (1).

3. The multi-degree-of-freedom joint for an onboard power amplifier of an aircraft according to claim 2, characterized in that: The connecting block (4) is made of insulating material.

4. The multi-degree-of-freedom joint for an onboard power amplifier of an aircraft according to claim 1, characterized in that: Both ends of the guide rod (33) are provided with arc surfaces.

5. The multi-degree-of-freedom joint for an onboard power amplifier of an aircraft according to claim 1, characterized in that: The elastic member (5) is a coil spring.

6. The multi-degree-of-freedom joint for an onboard power amplifier of an aircraft according to claim 5, characterized in that: The coil spring comprises a plurality of first springs (51) and a plurality of second springs (52); the plurality of first springs (51) are distributed at intervals along the circumference of the joint body (1) and form a first elastic group; the second springs (52) are distributed at intervals along the circumference of the joint body (1) and form a second elastic group; the first elastic group and the second elastic group are arranged at intervals along the length direction of the joint body (1).

7. The multi-degree-of-freedom joint for an onboard power amplifier of an aircraft according to claim 6, characterized in that: A plurality of the first springs (51) are evenly distributed along the circumference of the joint body (1), a plurality of the second springs (52) are evenly distributed along the circumference of the joint body (1), and the first springs (51) and the second springs (52) are staggeredly distributed along the circumference of the joint body (1).

8. The multi-degree-of-freedom joint for an onboard power amplifier of an aircraft according to claim 1, characterized in that: The center of gravity of the joint body (1) is located on the extension line of the axis of the support column (31).

9. The multi-degree-of-freedom joint for an onboard power amplifier of an aircraft according to claim 1, characterized in that: The joint body (1) is provided with a fixed joint (6) which is matched and connected thereto. The fixed joint (6) is threadedly fixed to the joint body (1). The elastic member (5) is located on a side of the guide assembly (3) away from the fixed joint (6).

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