Rocker arm structure suitable for rotary steering engine and rotary steering engine

Abstract

The utility model discloses a rocker arm structure suitable for a rotary steering engine and the rotary steering engine, and belongs to the technical field of aircraft structure design. The rocker arm structure comprises a rocker arm inner component and a rocker arm outer component; the rocker arm inner component and the rocker arm outer component are in buckle sliding connection through the buckle grooves formed in the two sides of the rocker arm inner component and the protruding strips of the rocker arm outer component, the rocker arm inner component and the rocker arm outer component are connected through the bolt at the pull rod connecting end of the rocker arm structure, and fastening connection and disassembly of the rocker arm inner component and the rocker arm outer component can be achieved by loosening and tightening the bolt at the pull rod connecting end. According to the rocker arm structure, the rocker arm inner component and the rocker arm outer component can be connected in a fastened mode by tightening the bolt at the connecting end of the pull rod, the rocker arm inner component and the rocker arm outer component can be detached by detaching the bolt at the connecting end of the pull rod, and the rocker arm inner structure is taken out of the rocker arm outer structure in a sliding mode along the protruding strip. Therefore, the rocker arm structure is convenient to disassemble and assemble. The rocker arm structure is greatly convenient to mount and dismount in practical application.

Description

Technical Field

[0001] This utility model belongs to the field of aircraft structural design technology, and in particular relates to a rocker arm structure and a rotary servo motor suitable for rotary servo motors. Background Technology

[0002] The servo arm is a crucial component in the control surface operating system of an unmanned aerial vehicle (UAV), serving as the first transmission element driving the control surface rotation. Currently, most UAVs use servos to drive the servo arm, which in turn drives a linkage, which in turn drives the control surface's servo arm to deflect the control surface. For medium or large UAVs, the servo system experiences significant transmission loads, requiring the servo to be mounted on the wing frame. Typically, the servo arm lugs are designed symmetrically with respect to their own axis, located at the end furthest from the opening. If the skin opening cannot be too large, servo assembly and disassembly becomes difficult. Therefore, designing a servo arm structure that facilitates installation and disassembly is of significant practical importance. Utility Model Content

[0003] In view of this, the present invention discloses a rocker arm structure and a rotary servo motor suitable for rotary servo motors.

[0004] The present invention adopts the following technical solution:

[0005] A rocker arm structure suitable for a rotary servo motor, the rocker arm structure comprising: an inner rocker arm component and an outer rocker arm component;

[0006] The rocker arm internal component includes a pull rod connecting end, an inner extension rod, and an internal component output shaft lug; one end of the rocker arm internal component serves as the pull rod connecting end, and the other end of the rocker arm internal component serves as the internal component output shaft lug, with the pull rod connecting end and the internal component output shaft lug connected by the inner extension rod; the rocker arm internal component has snap-fit ​​grooves on both sides; the pull rod connecting end has symmetrical bolt holes on both sides, and the bolt holes are smooth holes;

[0007] The rocker arm outer component is a U-shaped structure, and the bottom of the U-shaped structure is the outer component output shaft lug; the inner sides of both sides of the U-shaped structure are provided with protruding strips, and the snap-fit ​​grooves slide and engage with the protruding strips; the two ends of the U-shaped structure are provided with connecting screw holes, the opening direction of the connecting screw holes is consistent with the side direction of the U-shaped structure, the connecting screw holes are threaded holes, and the connecting screw holes match and correspond to the bolt holes; the connecting screw holes and bolt holes are fastened together by bolts.

[0008] Furthermore, the inner component output shaft lug consists of two mutually perpendicular fastening edges; the outer component output shaft lug consists of two mutually perpendicular fastening edges.

[0009] Furthermore, a circular groove is provided at the connection point of the two mutually perpendicular fastening edges.

[0010] Furthermore, the fastening edges surround to form a rectangular frame structure.

[0011] Furthermore, the snap-fit ​​groove is located on both sides of the output shaft lug of the inner component.

[0012] Furthermore, the two sides of the connecting end of the pull rod are provided with protruding structures, and the protruding structures are provided with bolt holes.

[0013] Furthermore, the connecting end of the pull rod is provided with a pull rod connecting hole, and the connecting end of the pull rod is round-headed.

[0014] Furthermore, the connection position between the pull rod connecting hole and the inner extension rod is provided with a through hole, the outer component output shaft lug is provided with a through hole, and the connection position between the inner component output shaft lug and the inner extension rod is provided with a through hole.

[0015] Furthermore, the rocker arm structure is made of aluminum alloy.

[0016] A rotary servo motor, the rotary servo motor including the rocker arm structure described above.

[0017] The beneficial effects of this utility model are:

[0018] The rocker arm structure of this utility model divides the rotary servo rocker arm into two parts, namely the inner rocker arm component and the outer rocker arm component. The inner rocker arm component and the outer rocker arm component are slidably snapped together by the snap-fit ​​groove and the protrusion strip, and are fastened together by the bolts at the connecting end of the pull rod.

[0019] Therefore, this rocker arm structure can achieve a tight connection between the inner and outer rocker arm components by tightening bolts at the connecting end of the tie rod, or it can achieve a separation of the inner and outer rocker arm components by removing bolts at the connecting end of the tie rod, allowing the inner rocker arm structure to slide out from the outer rocker arm structure along the protruding strip. Thus, the rocker arm structure of this utility model is very convenient to disassemble and install, greatly facilitating the installation and disassembly of the rocker arm structure in practical applications.

[0020] The rocker arm structure proposed in this invention has an axially symmetrical structure, which minimizes the interference of split rocker arms on the force transmission path. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of a rocker arm suitable for a rotary servo motor according to this utility model;

[0023] Figure 2 This is a schematic diagram of the internal components of the rocker arm in a rocker arm structure suitable for a rotary servo motor according to this utility model. Figure 1 ;

[0024] Figure 3 This is a schematic diagram of the internal components of the rocker arm in a rocker arm structure suitable for a rotary servo motor according to this utility model. Figure 2 ;

[0025] Figure 4 This is a schematic diagram of the outer rocker arm component in a rocker arm structure suitable for a rotary servo motor according to this utility model. Figure 1 ;

[0026] Figure 5 This is a schematic diagram of the outer rocker arm component in a rocker arm structure suitable for a rotary servo motor according to this utility model. Figure 2 . Detailed Implementation

[0027] To better understand the technical solution of this utility model, the embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] It should be understood that the described embodiments are merely some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] Example 1:

[0030] like Figure 1 As shown, a rocker arm structure suitable for a rotary servo motor is provided, the rocker arm structure comprising: an inner rocker arm component 2 and an outer rocker arm component 1;

[0031] The rocker arm inner component 2 includes a pull rod connecting end 21, an inner extension rod 22, and an inner component output shaft lug 23. One end of the rocker arm inner component 2 serves as the pull rod connecting end 21, and the other end serves as the inner component output shaft lug 23. The pull rod connecting end 21 and the inner component output shaft lug 23 are connected by the inner extension rod 22. The rocker arm inner component 2 has snap-fit ​​grooves 24 on both sides. The pull rod connecting end 21 has symmetrical bolt holes 25 on both sides, and the bolt holes 25 are smooth holes. See the schematic diagram of the rocker arm inner component. Figure 2 , 3 .

[0032] The rocker arm outer component 1 has a U-shaped structure, with the bottom of the U-shaped structure being the outer component output shaft lug 11. The inner sides of the two sides 14 of the U-shaped structure are provided with protruding strips 12, and the snap-fit ​​grooves 24 slide and engage with the protruding strips 12. The two ends of the U-shaped structure are provided with connecting screw holes 13, the opening direction of which is consistent with the direction of the sides 14 of the U-shaped structure. The connecting screw holes 13 are threaded holes, and they correspond to bolt holes 25. The connecting screw holes 13 and bolt holes 25 are fastened together with bolts. See the schematic diagram of the rocker arm outer component. Figure 4 , 5 .

[0033] Furthermore, the inner component output shaft lug 23 consists of two mutually perpendicular fastening edges; the outer component output shaft lug 11 consists of two mutually perpendicular fastening edges.

[0034] Furthermore, a circular groove is provided at the connection of the two mutually perpendicular fastening edges, and the circular groove 26 is the circular groove at the connection of the two fastening edges of the inner component output shaft lug 23.

[0035] Furthermore, the fastening edges surround to form a rectangular frame structure.

[0036] Furthermore, the snap-fit ​​groove 24 is located on both sides of the output shaft lug 23 of the inner component.

[0037] Furthermore, the two sides of the pull rod connecting end 21 are provided with protruding structures 27, and the protruding structures 27 are provided with bolt holes 25.

[0038] Furthermore, the pull rod connecting end 21 is provided with a pull rod connecting hole 28.

[0039] Furthermore, the connecting end 21 of the pull rod has a round head.

[0040] Furthermore, a through hole 29 is provided at the connection position between the pull rod connecting hole and the inner extension rod, a through hole 15 is provided around the output shaft lug of the outer component, and a through hole is provided at the connection position between the output shaft lug of the inner component and the inner extension rod.

[0041] Furthermore, the rocker arm structure is made of aluminum alloy.

[0042] A rotary servo motor, the rotary servo motor including the rocker arm structure described above.

[0043] The embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A rocker arm structure suitable for a rotary servo motor, characterized in that, The rocker arm structure includes: an inner rocker arm component and an outer rocker arm component; The rocker arm internal component includes a pull rod connecting end, an inner extension rod, and an internal component output shaft lug; one end of the rocker arm internal component serves as the pull rod connecting end, and the other end of the rocker arm internal component serves as the internal component output shaft lug, with the pull rod connecting end and the internal component output shaft lug connected by the inner extension rod; the rocker arm internal component has snap-fit ​​grooves on both sides; the pull rod connecting end has symmetrical bolt holes on both sides, and the bolt holes are smooth holes; The rocker arm outer component is a U-shaped structure, and the bottom of the U-shaped structure is the outer component output shaft lug; the inner sides of both sides of the U-shaped structure are provided with protruding strips, and the snap-fit ​​grooves slide and engage with the protruding strips; the two ends of the U-shaped structure are provided with connecting screw holes, the opening direction of the connecting screw holes is consistent with the side direction of the U-shaped structure, the connecting screw holes are threaded holes, and the connecting screw holes match and correspond to the bolt holes; the connecting screw holes and bolt holes are fastened together by bolts.

2. The rocker arm structure according to claim 1, characterized in that, The inner component output shaft lug consists of two mutually perpendicular fastening edges; the outer component output shaft lug consists of two mutually perpendicular fastening edges.

3. The rocker arm structure according to claim 2, characterized in that, A circular groove is provided at the connection point of the two mutually perpendicular fastening edges.

4. The rocker arm structure according to claim 3, characterized in that, The fastening edges surround to form a rectangular frame structure.

5. The rocker arm structure according to claim 4, characterized in that, The snap-fit ​​grooves are located on both sides of the output shaft lug of the internal component.

6. The rocker arm structure according to claim 5, characterized in that, The connecting end of the pull rod is provided with protruding structures on both sides, and the protruding structures are provided with bolt holes.

7. The rocker arm structure according to claim 6, characterized in that, The pull rod connection end is provided with a pull rod connection hole, and the pull rod connection end is round-headed.

8. The rocker arm structure according to claim 7, characterized in that, The connection hole of the pull rod and the inner extension rod are provided with a through hole, the outer component output shaft lug is provided with a through hole, and the connection between the inner component output shaft lug and the inner extension rod is provided with a through hole.

9. The rocker arm structure according to claim 8, characterized in that, The rocker arm structure is made of aluminum alloy.

10. A rotary servo motor, characterized in that, The rotary servo includes the rocker arm structure as described in any one of claims 1-9.

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