Self-resetting operating mechanism

Abstract

This invention discloses a self-resetting operating mechanism, wherein: a rod sleeve (7) and an adjusting anti-rotation block (6) are inserted into the middle of a connecting rod (8), and a spring A (4) is inserted into a positioning pin A (5). The upper and lower ends of the spring A (4) respectively abut against the adjusting anti-rotation block (6) and the lower end of the rod sleeve (7). A rolling mechanism (3) is installed at the lower end of the connecting rod (8), and a stop plate (1) is installed on the lower end face of the rod sleeve (7). The rolling mechanism (3) is inserted into a groove at the lower end of the stop plate (1). The upper and lower ends of a limiting mechanism (2) are respectively connected to the stop plate (1), and a positioning pin B (10) is installed at the lower end of the stop plate (1). The positioning pin B (10) contacts the limiting mechanism (2). This invention has a retractable position, which can satisfy the requirement that the connecting rod can be reset to the retractable position within the range of -5° to 0°, realize the preset function, and allow the spoiler to open quickly, avoiding potential safety risks in emergency situations.

Description

Technical Field

[0001] This invention belongs to the field of flight control system technology, specifically relating to a self-resetting control mechanism. Background Technology

[0002] The control mechanism is the device on an aircraft used to control the speed brakes. Its main function is to control the deployment and retraction of the spoilers during landing or deceleration. Existing speed brake structures lack a retractable position, preventing the aircraft from quickly deploying the spoilers and achieving rapid deceleration. Furthermore, they cannot automatically reset the lever mechanism to the retracted position within the -5° to 0° range, thus failing to achieve the preset functions and posing potential safety risks in emergency situations. Summary of the Invention

[0003] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a self-resetting control mechanism with a retractable position for the speed reducer structure, which can enable the linkage to return to the retracted position within the range of -5° to 0°, realize the preset function, and allow the spoiler to open quickly, thus avoiding potential safety risks.

[0004] The objective of this invention and the solution to its main technical problem are achieved by the following technical solutions: The present invention provides a self-resetting operating mechanism, comprising a gear plate, a limiting mechanism, a rolling mechanism, a spring A, a positioning pin A, an adjusting anti-rotation block, a sleeve, a connecting rod, and a positioning pin B. The connecting rod passes through the sleeve and the adjusting anti-rotation block at its middle section, and the spring A is inserted into the positioning pin A. The upper and lower ends of the spring A respectively abut against the adjusting anti-rotation block and the lower end of the sleeve. A rolling mechanism is installed at the lower end of the connecting rod, and a gear plate is installed on the lower end face of the sleeve. The rolling mechanism is engaged in a groove at the lower end of the gear plate. The upper and lower ends of the limiting mechanism are respectively connected to the gear plate, and the positioning pin B is installed at the lower end of the gear plate, contacting the limiting mechanism.

[0005] The lower end of the slot provided at the lower end of the gear plate is arc-shaped, and the upper end of the slot is inclined in a straight line.

[0006] The limiting mechanism consists of a limiting plate, a pin, a bracket, an adjusting rod, and a spring B. The two ends of the spring B are respectively fitted onto the limiting plate and the adjusting rod. The limiting plate is placed on the gear plate and can be rotated to insert the pin and screw in the nut. The adjusting rod passes through the bracket and is screwed in the nut. The bracket is installed on the gear plate by bolts.

[0007] The rolling mechanism consists of a fan-shaped head, a bearing, a shaft, and a nut. One end of the shaft is provided with a fan-shaped head, and the bearing on the shaft sleeve passes through the lower end of the connecting rod and is screwed into the nut. The bearing is engaged with the stop plate and can roll in the groove provided at the lower end of the stop plate.

[0008] A handle is installed at the upper end of the connecting rod.

[0009] The connecting rod has several holes for vertical adjustment in the middle.

[0010] Compared with existing technologies, this invention has significant advantages. As can be seen from the above technical solution: a rod sleeve is inserted through the middle of the connecting rod, an anti-rotation block is adjusted, and spring A is inserted into positioning pin A. The upper and lower ends of spring A respectively abut against the adjusting anti-rotation block and the lower end of the rod sleeve. A rolling mechanism is installed at the lower end of the connecting rod, and a stop plate is installed on the lower end face of the rod sleeve. The rolling mechanism is engaged in a groove at the lower end of the stop plate. The upper and lower ends of the limiting mechanism are respectively connected to the stop plate, and a positioning pin B is installed at the lower end of the stop plate, contacting the limiting mechanism. (See also...) Figure 2 With the soft stop engaged, pressing the handle causes the connecting rod and rolling mechanism to move downwards. The bearing disengages from the small arc groove on the arc-shaped groove at the lower end of the gear plate. Then, pushing the handle causes the bearing to roll from the soft stop in the middle to the maximum position at one end and the retracted position at the other. When the bearing rolls to the retracted position, spring A pushes the adjusting anti-rotation block upwards. The adjusting anti-rotation block causes the connecting rod to move upwards, which in turn causes the shaft to move upwards. The shaft causes the bearing to roll, and the bearing rolls past the limit plate and enters the retracted position at the lower end of the 1-shaped groove at the lower end of the gear plate. The bearing is blocked by the limit plate. Pulling the handle causes the connecting rod to move upwards, and the bearing pushes the limit plate to move. The limit plate rotates around the pin, compressing spring B. The bearing enters the pre-position at the upper end of the inclined 1-shaped groove at the lower end of the gear plate. The bearing can rotate at any position between -5° and 0° and can always return to the retracted position. A transverse spring B structure is installed between the soft stop and the pre-position to meet the retracted position function requirements. Based on the pre-position and retracted position force requirements and the force calculations of each component of the connecting rod under each position holding condition, the longitudinal force is ensured to be greater than the frictional force between the connecting rod, bearing, and stop plate 1. The force values ​​of the transverse spring mechanism and spring A in the connecting rod are adjustable. By actuating the speed reducer handle, the bearing moves along the arc-shaped groove and the upper inclined I-shaped groove on the stop plate. The handle and connecting rod rotate along the shafts on both sides of the rod sleeve, driving the RVDT to move. The RVDT outputs a corresponding angle signal, which is transmitted to the flight control system to control the spoiler opening angle. This achieves a retracted position for the speed reducer structure, ensuring that the connecting rod can return to the retracted position within the range of -5° to 0°, realizing the preset function, and allowing the spoiler to open quickly, avoiding potential safety risks in emergency situations. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is the front view of the present invention; Figure 3 This is a front view of the gear shift panel of the present invention; Figure 4 This is a schematic diagram of the limiting mechanism of the present invention; Figure 5 This is a schematic diagram of the structure of the limiting plate of the present invention; Figure 6 This is a schematic diagram of the rolling mechanism of the present invention; Figure 7 This is a schematic diagram of the structure of the fan-shaped head and shaft of the present invention; Figure 8 This is a schematic diagram of the positioning pin A and the connecting rod of the present invention; Figure 9 This is a schematic diagram of the connecting rod of the present invention; Figure 10 This is a diagram showing the usage state of the largest bit in this invention; Figure 11 This is a diagram showing the usage state of the retraction bit in this invention; Figure 12 This is a diagram showing the pre-positioned usage state of the present invention; Figure 13 This is a diagram showing the usage states of the retracted position and the pre-position of the present invention. Figure 14 This is an installation diagram of the present invention.

[0012] Figure label: 1. Gear plate, 2. Limiting mechanism, 3. Rolling mechanism, 4. Spring A, 5. Positioning pin A, 6. Adjusting anti-rotation block, 7. Rod sleeve, 8. Connecting rod, 9. Handle, 10. Positioning pin B, 11. Bracket, 21. Limiting plate, 22. Pin, 23. Bracket, 24. Adjusting rod, 25. Spring B, 31. Sector head, 32. Bearing, 33. Shaft, 34. Nut. Detailed Implementation

[0013] The following detailed description, in conjunction with the accompanying drawings and preferred embodiments, provides a detailed account of the specific implementation methods, structures, features, and effects of the present invention.

[0014] A self-resetting operating mechanism of the present invention includes a gear plate 1, a limiting mechanism 2, a rolling mechanism 3, a spring A4, a positioning pin A5, an adjusting anti-rotation block 6, a rod sleeve 7, a connecting rod 8, a handle 9, and a positioning pin B10. The connecting rod 8 passes through the rod sleeve 7 and the adjusting anti-rotation block 6 in the middle, and the spring A4 is inserted into the positioning pin A5. The upper and lower ends of the spring A4 respectively abut against the adjusting anti-rotation block 6 and the lower end of the rod sleeve 7. The rolling mechanism 3 is installed at the lower end of the connecting rod 8, and the gear plate 1 is installed on the lower end face of the rod sleeve 7. The rolling mechanism 3 is engaged in a groove at the lower end of the gear plate 1. The upper and lower ends of the limiting mechanism 2 are respectively connected to the gear plate 1. The positioning pin B10 is installed at the lower end of the gear plate 1 and contacts the limiting mechanism 2. The lower end of the groove at the lower end of the gear plate 1 is arc-shaped, and the upper end of the groove is inclined. The inclined 1-shaped limiting mechanism 2 consists of a limiting plate 21, a pin 22, a bracket 23, an adjusting rod 24, and a spring B25. The two ends of the spring B25 are respectively fitted onto the limiting plate 21 and the adjusting rod 24. The limiting plate 21 is placed on the gear plate 1 and can be rotated to insert the pin 22 and screw in the nut. The adjusting rod 24 passes through the bracket 23 and is screwed in the nut. The bracket 23 is installed on the gear plate 1 by bolts. The rolling mechanism 3 consists of a fan-shaped head 31, a bearing 32, a shaft 33, and a nut 34. One end of the shaft 33 is provided with a fan-shaped head 31. The shaft 33 is fitted with a bearing 32, passes through the lower end of the connecting rod 8, and is screwed in the nut 34. The bearing 32 is engaged in the gear plate 1 and can roll in the groove provided at the lower end of the gear plate 1. The upper end of the connecting rod 8 is equipped with a handle 9, and the middle of the connecting rod 8 is provided with several holes for up and down adjustment.

[0015] In use, the lever sleeve 7 is rotatably mounted on the bracket 11 via bearings. A circular gear is fixedly mounted on the side of the middle part of the lever sleeve 7, and the circular gear meshes with the sector gears of multiple RVDTs. The gear position plate 1 is fixedly mounted on the bracket 11. From the pre-position to the maximum position, pressing the handle 9 causes the connecting rod 8 to drive the bearing 32 to move downward, overcoming the elastic force of the transverse spring B25 between the pre-position and retracted positions and the elastic force of the compression spring A4 on the connecting rod 8. This causes the rolling bearing 32 at the lower end of the connecting rod 8 to move downward along the inclined I-shaped groove set in the gear position plate 1, moving from the pre-position to the retracted position. At the same time, the lever sleeve 7 drives the circular gear to rotate, which in turn drives the sector gears to rotate. The rotation of the sector gears drives the RVDTs to move, and the RVDTs output corresponding angle signals, which are transmitted to the flight control system to control the spoiler opening angle. See [link to relevant documentation]. Figure 13 Continue pressing handle 9. Link 8 moves bearing 32 downwards, overcoming the spring force of spring B25 and the spring force of compression spring A4 on link 8, pulling it towards the soft stop. Simultaneously, the lever sleeve 7 drives the circular gear to rotate, which in turn drives the sector gear to rotate. This rotation of the sector gear drives the RVDT to move, outputting a corresponding angle signal through the RVDT, which is then transmitted to the flight control system to control the spoiler opening angle. Continue pulling link 8 backwards. (See...) Figure 2 Until the maximum bit is reached (see above) Figure 10Simultaneously, the lever sleeve 7 drives the circular gear to rotate, which in turn drives the sector gear to rotate. The rotation of the sector gear drives the RVDT to move, and the RVDT outputs a corresponding angle signal, which is transmitted to the flight control system to control the spoiler opening angle. Under the constraint of the transverse spring B25 and the compression spring A4, the bearing 32 can maintain its position in the pre-position, retracted position, soft stop position, and maximum position. At the same time, the lever sleeve 7 drives the circular gear to rotate, which in turn drives the sector gear to rotate, and the rotation of the sector gear drives the RVDT to move. The RVDT outputs a corresponding angle signal, which is transmitted to the flight control system to control the spoiler opening angle. The connecting rod 8 can be reset to the retracted position at any position between -5° and 0°. Maximum position - Pre-position: Push handle 9 towards the maximum position. Pushing handle 9 drives connecting rod 8, which in turn causes bearing 32 to roll. Bearing 32 overcomes the spring force of spring A4 on connecting rod 8 and returns to the soft stop position. Continue pulling handle 9, which drives connecting rod 8, causing bearing 32 to roll to between -5° and 0°. Handle 9, connecting rod 8, and bearing 32 automatically return to the retracted position. Continue pulling handle 9 upwards, which drives connecting rod 8, which in turn causes bearing 32 to roll. Bearing 32 overcomes the spring force of transverse spring B25 and the spring force of compression spring A4 on connecting rod 8 and returns to the pre-position. This ensures that the connecting rod can return to the retracted position within the range of -5° to 0°, realizing the preset function. The spoiler opens quickly, avoiding potential safety risks in emergency situations.

[0016] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A self-resetting steering mechanism, comprising a gear plate (1), a limiting mechanism (2), a rolling mechanism (3), a spring A (4), a positioning pin A (5), an anti-rotation adjusting block (6), a rod sleeve (7), a connecting rod (8), and a positioning pin B (10), characterized in that; The connecting rod (8) is inserted into the middle of the rod sleeve (7), the adjusting anti-rotation block (6), and the spring A (4) is inserted into the positioning pin A (5). The upper and lower ends of the spring A (4) respectively abut against the adjusting anti-rotation block (6) and the lower end of the rod sleeve (7). A rolling mechanism (3) is installed at the lower end of the connecting rod (8). A stop plate (1) is installed on the lower end face of the rod sleeve (7). The rolling mechanism (3) is inserted into the groove at the lower end of the stop plate (1). The upper and lower ends of the limiting mechanism (2) are respectively connected to the stop plate (1). A positioning pin B (10) is installed at the lower end of the stop plate (1). The positioning pin B (10) is in contact with the limiting mechanism (2). The lower end of the groove at the lower end of the stop plate (1) is arc-shaped, and the upper end of the groove is inclined in the shape of a 1. The limiting mechanism (2) consists of a limiting plate (21), a pin (22), and a support. The frame (23), adjusting rod (24), and spring B (25) are respectively fitted on the limiting plate (21) and adjusting rod (24). The limiting plate (21) is placed on the gear plate (1) and can be rotated to insert the pin (22) and screw in the nut. The adjusting rod (24) passes through the bracket (23) and screws in the nut. The bracket (23) is installed on the gear plate (1) by bolts. The rolling mechanism (3) is composed of a fan-shaped head (31), bearing (32), shaft (33), and nut (34). One end of the shaft (33) is provided with a fan-shaped head (31). The shaft (33) is fitted with a bearing (32) and passes through the lower end of the connecting rod (8) and screws in the nut (34). The bearing (32) is inserted into the gear plate (1) and can roll in the groove provided at the lower end of the gear plate (1).

2. The self-resetting actuation mechanism of claim 1, wherein; A handle (9) is installed on the upper end of the connecting rod (8).

3. The self-resetting actuation mechanism of claim 1, wherein; The connecting rod (8) has several holes for vertical adjustment in the middle.

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