Self-limiting helicopter simulator accelerator ring linkage mechanism and debugging and mounting method

Abstract

The invention provides a self-limiting helicopter simulator accelerator ring linkage mechanism and a debugging and mounting method. The mechanism comprises a total pitch torsion tube (1), an accelerator ring (2), a linkage pull rod (5), a compression spring (6), a limiting pin (7) and a limiting fork arm (8). Wherein the accelerator rings (2) are arranged at the two ends of the collective pitch torsion tube (1) respectively, the two ends of the linkage pull rod (5) are connected with the two accelerator rings (2) respectively, and the linkage pull rod (5) moves along with any accelerator ring (2); a limiting fork arm (8) is further fixedly arranged on the total pitch torsion tube (1), a U-shaped groove is further formed in the limiting fork arm (8), and the linkage pull rod (5) moves in the U-shaped groove; two limiting pins (7) are arranged on the linkage pull rod (5) and located on the two sides of the limiting fork arm (8) respectively. The two compression springs (6) are sleeved on the linkage pull rod (5) and are respectively positioned between one limiting pin (7) and the limiting fork arm (8); and when the two compression springs (6) are balanced, the two accelerator rings (2) are in neutral positions. And the functions of limiting, starting force simulation and automatic centering are realized.

Description

Technical Field

[0001] The invention belongs to the field of flight simulation and relates to a self-limiting helicopter simulator throttle ring linkage mechanism and a debugging and installation method. Background Art

[0002] A throttle ring mechanism is designed for the head of the helicopter's collective pitch lever to control the engine output power. The real aircraft control mechanism realizes the linkage of the left and right collective pitch lever throttles through a cable pulley mechanism; a cam roller combination is set in the real aircraft control mechanism to achieve a certain amount of starting force required to operate the throttle ring; a linear motor (serial servo) is set in the real aircraft control mechanism rod system to realize the automatic return function of the throttle ring.

[0003] The cable pulley mechanism has many parts and components, which are relatively complex, with high processing costs and complicated assembly processes. Compared with the real aircraft, helicopter flight simulators generally only simulate the cockpit part of the real aircraft, while the cam roller mechanism and tandem servos are both located in the fuselage of the real aircraft. Therefore, the real aircraft's collective pitch joystick structure cannot be used directly, and the mechanism needs to be redesigned to achieve starting force simulation and automatic return to center functions. Summary of the invention

[0004] The invention provides a self-limiting helicopter simulator throttle ring linkage mechanism and a debugging and installation method, which realize the functions of limiting, starting force simulation and automatic return to center.

[0005] The present invention provides a self-limiting helicopter simulator throttle ring linkage mechanism, comprising: a collective torque tube 1, a throttle ring 2, a linkage pull rod 5, a compression spring 6, a limit pin 7, and a limit fork arm 8;

[0006] Wherein, a throttle ring 2 is respectively arranged at both ends of the collective torque tube 1, and the two ends of the linkage tie rod 5 are respectively connected to the two throttle rings 2, and move with any throttle ring 2;

[0007] A limit fork arm 8 is also fixedly provided on the collective torque tube 1, and a U-shaped groove is also provided on the limit fork arm 8, and the linkage rod 5 moves in the U-shaped groove;

[0008] The linkage pull rod 5 is provided with two limit pins 7, which are respectively located on both sides of the limit fork arm 8;

[0009] Two compression springs 6 are sleeved on the linkage pull rod 5 and are respectively located between a limit pin 7 and a limit fork arm 8;

[0010] When the two compression springs 6 are balanced, the two throttle rings 2 are in a neutral position.

[0011] Optionally, a plurality of pin holes for limit pins 7 are respectively provided at both ends of the linkage pull rod 5;

[0012] When the two throttle rings 2 are in the neutral position, the two compression springs 6 are compressed.

[0013] Optionally, the limiting fork arm 8 is located in the middle of the collective torque tube 1 .

[0014] Optionally, it also includes: an angular displacement sensor 10 and a sensor bracket 11;

[0015] A sensor bracket 11 is also fixedly provided at the end of the collective torque tube 1;

[0016] The angular displacement sensor 10 is mounted on the sensor bracket 11 and is used to collect the angular displacement signal of the throttle ring 2 .

[0017] Optionally, both ends of the connecting shaft 3 are square shafts, and the sides of the square shafts are parallel;

[0018] The test end of the angular displacement sensor 10 is inserted into the connecting shaft 3 .

[0019] Optionally, it also includes: a connecting shaft 3 and a rocker arm;

[0020] Both ends of the collective torque tube 1 are connected to a connecting shaft 3 through bearings;

[0021] The first end of the connecting shaft 3 is connected to the throttle ring 2, and the second end is connected to the first end of the rocker arm; the second end of the rocker arm is connected to the end of the linkage rod 5; when the throttle ring 2 rotates, the rocker arm is driven to rotate through the connecting shaft 3, and then the linkage rod 5 is driven to move.

[0022] Optionally, both side surfaces of the limiting fork arm 8 are covered with copper.

[0023] The second aspect of the present invention provides a debugging and installation method for the self-limiting helicopter simulator throttle ring linkage mechanism as described in any one of the first aspects, comprising:

[0024] S1. Assembling the self-limiting helicopter simulator throttle ring linkage mechanism;

[0025] S2, turn the throttle ring 2;

[0026] S3, if it is detected that the throttle ring 2 cannot automatically return to the center;

[0027] S4, inserting the two limit pins 7 into the limit pin holes with smaller spacing on the linkage pull rod 5 respectively.

[0028] The present invention discloses a self-limiting helicopter simulator throttle ring linkage mechanism and debugging and installation method, which can not only realize the linkage of the left and right collective pitch rods, but also collect throttle control signals, simulate the throttle ring control force sense, realize the throttle ring automatic return to the center, and has a limiting function. The invention has a compact structure, convenient installation, stability and reliability, and can be applied to other helicopter simulators with throttle rings, which can shorten the design cycle and reduce processing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the structure of the self-limiting helicopter simulator throttle ring linkage mechanism provided by the embodiment of the present invention Figure 1 ;

[0030] Figure 2 A schematic diagram of the structure of the self-limiting helicopter simulator throttle ring linkage mechanism provided by the embodiment of the present invention Figure 2 ;

[0031] Among them, 1-total torque tube, 2-throttle ring, 3-connecting shaft, 4-left linkage rocker arm, 5-linkage pull rod, 6-compression spring, 7-limit pin, 8-limit fork arm, 9-right linkage rocker arm, 10-angular displacement sensor, 11-sensor bracket. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] like Figure 1-2 As shown, the present invention provides a self-limiting helicopter simulator throttle ring linkage mechanism, comprising: a collective torque tube 1, a throttle ring 2, a linkage pull rod 5, a compression spring 6, a limit pin 7, and a limit fork arm 8;

[0034] Wherein, a throttle ring 2 is respectively arranged at both ends of the collective torque tube 1, and the two ends of the linkage tie rod 5 are respectively connected to the two throttle rings 2, and move with any throttle ring 2;

[0035] A limit fork arm 8 is also fixedly provided on the collective torque tube 1, and a U-shaped groove is also provided on the limit fork arm 8, and the linkage rod 5 moves in the U-shaped groove;

[0036] The linkage pull rod 5 is provided with two limit pins 7, which are respectively located on both sides of the limit fork arm 8;

[0037] Two compression springs 6 are sleeved on the linkage pull rod 5 and are respectively located between a limit pin 7 and a limit fork arm 8;

[0038] When the two compression springs 6 are balanced, the two throttle rings 2 are in a neutral position.

[0039] Optionally, a plurality of pin holes for limit pins 7 are respectively provided at both ends of the linkage pull rod 5;

[0040] When the two throttle rings 2 are in the neutral position, the two compression springs 6 are compressed.

[0041] Optionally, the limiting fork arm 8 is located in the middle of the collective torque tube 1 .

[0042] Optionally, it also includes: an angular displacement sensor 10 and a sensor bracket 11;

[0043] A sensor bracket 11 is also fixedly provided at the end of the collective torque tube 1;

[0044] The angular displacement sensor 10 is mounted on the sensor bracket 11 and is used to collect the angular displacement signal of the throttle ring 2 .

[0045] Optionally, both ends of the connecting shaft 3 are square shafts, and the sides of the square shafts are parallel;

[0046] The test end of the angular displacement sensor 10 is inserted into the connecting shaft 3 .

[0047] Optionally, it also includes: a connecting shaft 3 and a rocker arm;

[0048] Both ends of the collective torque tube 1 are connected to a connecting shaft 3 through bearings;

[0049] The first end of the connecting shaft 3 is connected to the throttle ring 2, and the second end is connected to the first end of the rocker arm; the second end of the rocker arm is connected to the end of the linkage rod 5; when the throttle ring 2 rotates, the rocker arm is driven to rotate through the connecting shaft 3, and then the linkage rod 5 is driven to move.

[0050] Optionally, both side surfaces of the limiting fork arm 8 are covered with copper.

[0051] The present invention also provides a debugging and installation method for a self-limiting helicopter simulator throttle ring linkage mechanism, comprising:

[0052] S1. Assembling the self-limiting helicopter simulator throttle ring linkage mechanism;

[0053] S2, turn the throttle ring 2;

[0054] S3, if it is detected that the throttle ring 2 cannot automatically return to the center;

[0055] S4, inserting the two limit pins 7 into the limit pin holes with smaller spacing on the linkage pull rod 5 respectively.

[0056] The self-limiting helicopter simulator throttle ring linkage mechanism provided by the present invention has the following principle: when the pilot rotates the right throttle ring, the angular displacement sensor can collect the angular displacement signal, the right linkage rocker arm 9 rotates and drives the left linkage rocker arm 4 to rotate through the linkage pull rod, thereby transmitting the rotation to the left throttle ring; two compression springs are sleeved on the linkage pull rod, the left and right springs are pre-compressed by half, one end of the springs is pressed against the limiting fork arm, and the other end is pressed against the limiting pin shaft on the pull rod, so that the springs have initial elastic force, and the elastic force hinders the linkage railing from moving left and right, so as to simulate the starting force and operating force of the throttle ring, and when the pilot releases the throttle ring, due to the elastic force difference of the two compression springs, the linkage pull rod can be pushed back to the initial position, so that the left and right rocker arms and the left and right throttle rings all return to the initial positions, and when the left spring is compressed to each circle and tightened, the maximum stroke of the throttle ring is reached at this time, otherwise it reaches 0% of the throttle ring. This invention can not only collect throttle signals and simulate the starting force and operating force required for the throttle ring, but also simulate the automatic return to center function of the throttle ring and has a limit function, so that the operating logic and the pilot's hand force feel are consistent with the corresponding helicopter, making the simulation effect more realistic.

[0057] The present invention designs a connecting shaft, and the cross-sections of both ends thereof are designed to be square, and a hole is drilled at one end for connecting a sensor; the present invention designs a linkage rocker, and one end thereof is a square hole, and the other end thereof is designed to be a fork arm, which is adapted to the installation of a tie rod bearing; the present invention designs a linkage tie rod, and both ends thereof are equipped with tie rod bearings, and the middle is a welded rod body, and pin holes are drilled on the rod body, which is symmetrical on the left and right; the present invention designs a compression spring, and the size of the compression spring is designed according to the angular stroke of the helicopter throttle ring and the size of the throttle ring starting force; the present invention designs a limit pin, and it is interference fit with the pin control on the linkage tie rod; the present invention designs a limit fork arm, and the size of the waist hole is designed according to the operating stroke, and grease is applied or copper is coated on the side.

Claims

1. A self-limiting helicopter simulator throttle ring linkage mechanism, characterized in that: include: A collective torque tube (1), a throttle ring (2), a linkage pull rod (5), a compression spring (6), a limit pin (7), and a limit fork arm (8); Wherein, a throttle ring (2) is respectively arranged at both ends of the collective torque tube (1), and both ends of the linkage tie rod (5) are respectively connected to the two throttle rings (2) and move with any throttle ring (2); A limit fork arm (8) is also fixedly arranged on the collective torque tube (1), and a U-shaped groove is also arranged on the limit fork arm (8), and the linkage pull rod (5) moves in the U-shaped groove; The linkage pull rod (5) is provided with two limit pins (7), which are respectively located on both sides of the limit fork arm (8); Two compression springs (6) are sleeved on the linkage pull rod (5) and are respectively located between a limit pin (7) and a limit fork arm (8); When the two compression springs (6) are balanced, the two throttle rings (2) are in a neutral position.

2. The self-limiting helicopter simulator throttle ring linkage mechanism according to claim 1 is characterized in that: Pin holes for a plurality of limit pins (7) are respectively arranged at both ends of the linkage pull rod (5); When the two throttle rings (2) are in a neutral position, the two compression springs (6) are compressed.

3. The self-limiting helicopter simulator throttle ring linkage mechanism according to claim 1 is characterized in that: The limiting fork arm (8) is located in the middle of the collective torque tube (1).

4. The self-limiting helicopter simulator throttle ring linkage mechanism according to claim 1 is characterized in that: Also includes: Angular displacement sensor (10), sensor bracket (11); A sensor bracket (11) is also fixedly arranged at the end of the collective torque tube (1); The angular displacement sensor (10) is mounted on a sensor bracket (11) and is used to collect an angular displacement signal of a throttle ring (2).

5. The self-limiting helicopter simulator throttle ring linkage mechanism according to claim 1 is characterized in that: Both ends of the connecting shaft (3) are square shafts, and the side surfaces of the square shafts are parallel; The test end of the angular displacement sensor (10) is inserted into the connecting shaft (3).

6. The self-limiting helicopter simulator throttle ring linkage mechanism according to claim 5 is characterized in that: Also includes: Connecting shaft (3), rocker arm; Both ends of the collective torque tube (1) are connected to a connecting shaft (3) via bearings respectively; The first end of the connecting shaft (3) is connected to the throttle ring (2), and the second end is connected to the first end of the rocker arm; the second end of the rocker arm is connected to the end of the linkage rod (5); when the throttle ring (2) rotates, the rocker arm is driven to rotate through the connecting shaft (3), thereby driving the linkage rod (5) to move.

7. The self-limiting helicopter simulator throttle ring linkage mechanism according to claim 6 is characterized in that: The two side surfaces of the limiting fork arm (8) are covered with copper.

8. A method for debugging and installing a self-limiting helicopter simulator throttle ring linkage mechanism as claimed in any one of claims 2 to 7, characterized in that: include: S1. Assembling the self-limiting helicopter simulator throttle ring linkage mechanism; S2, turning the throttle ring (2); S3, if it is detected that the throttle ring (2) cannot automatically return to the center; S4. Insert the two limit pins (7) into the limit pin holes with smaller spacing on the linkage pull rod (5) respectively.

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