Aircraft accelerator platform for adjusting variable speed and variable ratio based on gear engagement

By designing a structure of gear meshing and adjusting the gear ratio in the aircraft throttle platform, the problem of insufficient feel and control accuracy in the fine control section of the existing throttle platform is solved, and the gear ratio design of the input and output rod is realized, which improves the stability and accuracy of the throttle control.

CN222663771UActive Publication Date: 2025-03-25CHENGDU AIRCRAFT IND GRP ELECTRONIC TECH CO
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Patent Information

Application Number
CN202421396374.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-19
Publication Date
2025-03-25
Estimated Expiration
2034-06-19

AI Technical Summary

Technical Problem

The existing mechanical throttle table cannot provide better feel and control accuracy in the throttle control section that requires fine adjustment, and the input and output angles are synchronized by 1:1, and there is no function of changing the input and output angles.

Method used

An aircraft throttle table based on gear meshing adjustment of the speed change ratio is designed. The non-circular meshing surface of the input push rod meshing to drive the rotation of the non-circular gear block, drive the rotation of the circular gear disc, and then drive the rotation of the circular tooth surface of the output rod. The speed change ratio design of the input push rod and the output rod is realized through the meshing indexing line ratio of the circular gear disc and the non-circular gear block.

Benefits of technology

The rotation ratio of the input push rod and the output rod is customized and adjustable, and the variable ratio is controlled through the meshing of the intermediate gear, which makes the high-speed movement more stable and has better practicality.

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Abstract

The utility model discloses an aircraft accelerator platform based on gear meshing to adjust variable speed and variable ratio, which comprises a base, an input push rod, an output rod and a driving gear, the output rod and the input push rod are sequentially and rotatably arranged on one side of the base from inside to outside, the driving gear is arranged on one side of the output rod, and the driving gear is rotatably connected with the base; the driving gear comprises a circular gear disc and a non-circular gear block, one side of the circular gear disc is rotationally connected with the base, and the non-circular gear block is fixedly arranged on the other side of the circular gear disc; a circular tooth surface is arranged on the peripheral side of the rotating end of the output rod, and the circular tooth surface of the output rod is meshed with the circular gear disc; one side of the rotating end of the input push rod is provided with a non-circular meshing surface corresponding to the non-circular gear block, and the non-circular meshing surface of the input push rod is meshed with the non-circular gear block; the circular gear disc and the non-circular gear block are different in meshing indexing line. The variable-speed and variable-ratio design of the input push rod and the output rod is achieved through the meshing indexing line proportion of the circular gear disc and the non-circular gear block. Control of transformation ratio is achieved through meshing of the intermediate gears, high-speed movement is more stable, and good practicability is achieved.
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Description

Technical Field

[0001] The utility model belongs to the technical field of throttle platforms for aircraft, and in particular relates to an aircraft throttle platform for adjusting a speed change ratio based on gear meshing. Background Art

[0002] The throttle platform is an important part of the throttle control system and an important interface for the pilot to control the engine. The manual throttle control system mostly uses a throttle platform with mechanical transmission. The pilot generates mechanical output by manipulating the throttle platform, which is transmitted mechanically (such as a flexible shaft cable) to drive the throttle actuator to move and achieve throttle adjustment. In the design process of the throttle platform, the input and output push rods of the existing mechanical throttle platform are a whole rod combined together, and the input and output angles are synchronized at 1:1, without the function of input and output angle ratio change. In the throttle control section that requires fine regulation, it cannot provide better feel and control accuracy. Therefore, it is necessary to add a design of the speed ratio of the input push rod and the output rod, and adjust the rotation ratio of the output rod and the input push rod. Utility Model Content

[0003] The utility model aims to provide an aircraft throttle platform based on gear meshing to adjust the speed ratio, aiming to realize the customized and adjustable rotation ratio of the input push rod and the output rod of the aircraft throttle platform.

[0004] The utility model is mainly realized through the following technical solutions:

[0005] An aircraft throttle station for adjusting a speed change ratio based on gear meshing comprises a base, an input push rod, an output rod and a driving gear, wherein an output rod and an input push rod are rotatably arranged on one side of the base from the inside to the outside in sequence, the driving gear is arranged on one side of the output rod, and the driving gear is rotatably connected to the base; the driving gear comprises a circular gear plate and a non-circular gear block, one side of the circular gear plate is rotatably connected to the base, and the other side is fixedly provided with a non-circular gear block; a circular tooth surface is arranged on the circumferential side of the rotating end of the output rod, and the circular tooth surface of the output rod is meshed with the circular gear plate; a non-circular meshing surface is arranged on one side of the rotating end of the input push rod corresponding to the non-circular gear block, and the non-circular meshing surface of the input push rod is meshed with the non-circular gear block; the meshing index lines of the circular gear plate and the non-circular gear block are different.

[0006] In order to better realize the utility model, further, the driving gear also includes a connecting column, one end of which is rotatably connected to the base, and the other end is sequentially sleeved with a circular gear plate and a non-circular gear block, and a rotating mounting hole is provided on the base corresponding to the connecting column.

[0007] In order to better realize the utility model, further, the non-circular gear block includes a sector-shaped block and gear teeth corresponding to the non-circular dividing line, the sector-shaped block is fixedly connected to the end of the connecting column, and the sector-shaped block is provided with gear teeth corresponding to the non-circular dividing line on one side close to the input push rod.

[0008] In order to better realize the utility model, further, a meshing protrusion is arranged on one side of the sector block close to the input push rod, the free side of the meshing protrusion is a curved surface of a dividing line, and a plurality of gear teeth are arranged based on the dividing line.

[0009] In order to better realize the utility model, further, an open groove is provided on one side of the rotating end of the input push rod, and the two ends of the open groove are respectively provided with meshing end surfaces corresponding to the meshing protrusions, and the meshing end surfaces are correspondingly provided with meshing teeth meshing with the gear teeth.

[0010] In order to better realize the utility model, further, a rotating shaft is provided on one side of the base, and the rotating ends of the input push rod and the output rod are rotatably sleeved on the rotating shaft respectively.

[0011] In order to better realize the utility model, further, a friction mechanism is arranged on the inner side of the input push rod, and the friction mechanism includes a friction part and a friction plate. The friction part is fixedly arranged on the input push rod, and a friction plate is correspondingly arranged on the base. The friction plate is provided with a plurality of sector-shaped contact surfaces with different roughness corresponding to the friction part.

[0012] The beneficial effects of the utility model are as follows:

[0013] The utility model drives the non-circular gear block to rotate by meshing the non-circular meshing surface of the input push rod, indirectly drives the circular gear plate to rotate, and then drives the circular tooth surface of the output rod to rotate by meshing the circular gear plate. The driving gear is rotated at a variable speed by the meshing indexing line ratio of the circular gear plate and the non-circular gear block, and the speed change ratio design of the input push rod and the output rod is realized. The utility model realizes the control of the ratio by meshing the intermediate gear, and the high-speed movement is more stable, which has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the connection structure between the output rod and the input push rod of the utility model;

[0015] Figure 2 for Figure 1 The main view;

[0016] Figure 3 is a schematic diagram of the connection structure of the driving gear;

[0017] Figure 4 Schematic diagram of the connection structure of the base, output rod and input push rod.

[0018] Among them: 1-base, 2-output rod, 3-input push rod, 4-circular gear plate, 5-non-circular gear block, 6-circular tooth surface, 7-non-circular meshing surface, 8-connecting column. DETAILED DESCRIPTION

[0019] Embodiment 1:

[0020] An aircraft throttle station for adjusting a speed change ratio based on gear meshing comprises a base 1, an input push rod 3, an output rod 2 and a driving gear, wherein the output rod 2 and the input push rod 3 are rotatably arranged on one side of the base 1 in sequence from the inside to the outside, the driving gear is arranged on one side of the output rod 2, and the driving gear is rotatably connected to the base 1; the driving gear comprises a circular gear plate 4 and a non-circular gear block 5, one side of the circular gear plate 4 is rotatably connected to the base 1, and the other side is fixedly provided with the non-circular gear block 5; a circular tooth surface 6 is arranged on the circumferential side of the rotating end of the output rod 2, and the circular tooth surface 6 of the output rod 2 is meshed with the circular gear plate 4; a non-circular meshing surface 7 is arranged on one side of the rotating end of the input push rod 3 corresponding to the non-circular gear block 5, and the non-circular meshing surface 7 of the input push rod 3 is meshed with the non-circular gear block 5; the meshing index lines of the circular gear plate 4 and the non-circular gear block 5 are different.

[0021] Preferably, the design method of the dividing line of the non-circular meshing surface of this embodiment is as follows:

[0022]

[0023]

[0024] Where R1(θ1) is the radius of the pitch line of the non-circular gear meshing surface of the input rod,

[0025] R2(θ2) is the radius of the pitch line of the non-circular gear meshing surface on the non-circular gear block,

[0026] C is the distance between the input rod and the rotation axis of the non-circular gear block,

[0027] θ2 is the rotation angle of the output end,

[0028] f(θ1) is the function of the rotation angle of the output end changing with the rotation angle of the input end.

[0029] R2(f(θ1)) is the function of the radius of the output end meshing point changing with the input end angle.

[0030] Preferably, the driving gear further comprises a connecting column 8, one end of which is rotatably connected to the base 1, and the other end of which is sleeved and mounted with a circular gear plate 4 and a non-circular gear block 5 in sequence, and a rotatable mounting hole is provided on the base 1 corresponding to the connecting column 8. Specifically, the non-circular gear block 5 comprises a sector block and gear teeth corresponding to the non-circular index line, the sector block is fixedly connected to the end of the connecting column 8, and the sector block is provided with gear teeth corresponding to the non-circular index line on one side close to the input push rod 3.

[0031] Preferably, a friction mechanism is provided inside the input push rod 3, and the friction mechanism includes a friction part and a friction plate. The input push rod 3 is fixedly provided with a friction part, and the base 1 is correspondingly provided with a friction plate, and the friction plate is provided with a plurality of sector-shaped contact surfaces with different roughnesses corresponding to the friction part. At the same time, the throttle platform has the problem of sudden change of the variable segmented operating force during operation. Therefore, sector-shaped contact surfaces with different roughnesses are used to form the characteristics of segmented change of friction force, and the sudden change of force is offset to achieve the effect of complementing the combined force, thereby improving the reliability and stability of the system operation.

[0032] During use, as the input push rod 3 rotates, the non-circular meshing surface 7 of the input push rod 3 is meshed to drive the non-circular gear block 5 to rotate, driving the circular gear plate 4 to rotate, and then the circular tooth surface 6 of the output rod 2 is meshed to drive the circular gear plate 4 to rotate, and the meshing indexing line ratio of the circular gear plate 4 and the non-circular gear block 5 is used to make the driving gear rotate at a variable speed, thereby realizing the variable speed ratio design of the input push rod 3 and the output rod 2. The utility model realizes the control of the ratio through the meshing of the intermediate gear, has less motion wear, is more stable at high speed, and has good practicality.

[0033] Embodiment 2:

[0034] An aircraft throttle control for adjusting the speed ratio based on gear meshing, such as Figure 1-Figure 4As shown, it includes a base 1, an input push rod 3 and an output rod 2, one end of the input push rod 3 and the output rod 2 are respectively connected to the base 1, and one end of the input push rod 3 is rotatably sleeved on the outside of one end of the output rod 2. A connecting column 8 is rotatably provided on one side of the base 1, and a circular gear plate 4 and a non-circular gear block 5 are sequentially mounted on the connecting column 8 from the inside to the outside. One end of the input push rod 3 and the output rod 2 are respectively meshed with the non-circular gear block 5 and the circular gear plate 4, and the meshing indexing lines of the circular gear plate 4 and the non-circular gear block 5 are designed according to the ratio. Specifically, a circular tooth surface 6 is correspondingly provided at one end of the output rod 2, and the circular tooth surface 6 of the output rod 2 is meshed with the circular gear plate 4. A non-circular meshing surface 7 is correspondingly provided at one end of the input push rod 3, and the non-circular meshing surface 7 of the input push rod 3 is meshed with the non-circular gear block 5. Specifically, the non-circular gear block 5 includes a sector block and a meshing protrusion, the sector block is provided with a meshing protrusion, and the meshing protrusion is provided with a plurality of gear teeth corresponding to the non-circular dividing lines. The utility model adjusts the required ratio by the meshing protrusion, and the shape of the meshing protrusion is different under different ratio parameters. Figure 1 The meshing protrusion in the figure only illustrates the curved surface of the gear's index line. The actual meshing is based on the position of the index line, which is then processed into the small gear teeth. Figure 2 The pinion teeth are not shown.

[0035] During use, as the input push rod 3 rotates, the non-circular meshing surface 7 of the input push rod 3 is meshed to drive the non-circular gear block 5 to rotate, driving the circular gear plate 4 to rotate, and then the circular tooth surface 6 of the output rod 2 is meshed to drive the circular gear plate 4 to rotate, and the meshing indexing line ratio of the circular gear plate 4 and the non-circular gear block 5 is used to make the driving gear rotate at a variable speed, thereby realizing the variable speed ratio design of the input push rod 3 and the output rod 2. The utility model realizes the control of the ratio through the meshing of the intermediate gear, has less motion wear, is more stable at high speed, and has good practicality.

[0036] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. An aircraft throttle control unit for adjusting the speed ratio based on gear meshing, characterized in that: The invention comprises a base (1), an input push rod (3), an output rod (2) and a driving gear, wherein the output rod (2) and the input push rod (3) are rotatably arranged on one side of the base (1) from the inside to the outside in sequence, the driving gear is arranged on one side of the output rod (2), and the driving gear is rotatably connected to the base (1); the driving gear comprises a circular gear plate (4) and a non-circular gear block (5), one side of the circular gear plate (4) is rotatably connected to the base (1), and the other side of the circular gear plate (4) is fixedly arranged with the non-circular gear block (5); a circular tooth surface (6) is arranged on the circumferential side of the rotating end of the output rod (2), and the circular tooth surface (6) of the output rod (2) meshes with the circular gear plate (4); a non-circular meshing surface (7) is arranged on one side of the rotating end of the input push rod (3) corresponding to the non-circular gear block (5), and the non-circular meshing surface (7) of the input push rod (3) meshes with the non-circular gear block (5); the meshing index lines of the circular gear plate (4) and the non-circular gear block (5) are different.

2. The aircraft throttle control unit based on gear meshing to adjust the speed ratio according to claim 1, characterized in that: The driving gear further comprises a connecting column (8), one end of the connecting column (8) being rotatably connected to the base (1), and the other end of the connecting column being sequentially sleeved and mounted with a circular gear plate (4) and a non-circular gear block (5), and a rotatable mounting hole being arranged on the base (1) corresponding to the connecting column (8).

3. The aircraft throttle control unit based on gear meshing to adjust the speed ratio according to claim 2, characterized in that: The non-circular gear block (5) comprises a sector block and gear teeth corresponding to the non-circular dividing line, the sector block is fixedly connected to the end of the connecting column (8), and the gear teeth corresponding to the non-circular dividing line are arranged on one side of the sector block close to the input push rod (3).

4. The aircraft throttle control unit based on gear meshing to adjust the speed ratio according to claim 3, characterized in that: A meshing protrusion is arranged on one side of the sector block close to the input push rod (3); a free side of the meshing protrusion is a curved surface of a dividing line, and a plurality of gear teeth are arranged based on the dividing line.

5. The aircraft throttle control unit based on gear meshing to adjust the speed ratio according to claim 4, characterized in that: An open groove is provided on one side of the rotating end of the input push rod (3), and meshing end surfaces are provided at both ends of the open groove corresponding to the meshing protrusions, and the meshing end surfaces are provided with meshing teeth that mesh with the gear teeth.

6. The aircraft throttle control unit based on gear meshing to adjust the speed ratio according to claim 1, characterized in that: A rotating shaft is provided on one side of the base (1), and the rotating ends of the input push rod (3) and the output rod (2) are respectively rotatably sleeved on the rotating shaft.

7. An aircraft throttle control unit for adjusting the speed ratio based on gear meshing according to any one of claims 1 to 6, characterized in that: A friction mechanism is arranged on the inner side of the input push rod (3), the friction mechanism comprising a friction portion and a friction plate, the friction portion is fixedly arranged on the input push rod (3), the friction plate is correspondingly arranged on the base (1), and the friction plate is provided with a plurality of sector-shaped contact surfaces with different roughnesses corresponding to the friction portion.