CN-121982953-A - Torque overrun protection device for dynamic flight simulator rotating arm end

CN121982953ACN 121982953 ACN121982953 ACN 121982953ACN-121982953-A

Abstract

The invention relates to the technical field of flight simulators, in particular to a torque overrun protection device for a rotating arm end of a dynamic flight simulator, which comprises a hydraulic expansion sleeve, a rotating arm, a torque transmission device and a torque overrun protection device, wherein the hydraulic expansion sleeve is sleeved on a main shaft and fixedly connected to the rotating arm, is used for transmitting torque in a rated torque range, and slides relative to the main shaft when the torque overrun occurs; the device comprises a spindle, a conical sleeve, a bearing assembly, a rotary connector, a rotor and a stator, wherein the conical sleeve is in interference fit with the spindle and is pressed against the conical surface of the inner wall of the hydraulic expansion sleeve through the outer conical surface of the conical sleeve to lock a transmission part of the hydraulic expansion sleeve with the spindle, the bearing assembly is arranged between the spindle and a rotating arm or the hydraulic expansion sleeve, and the rotor of the rotary connector is connected with the spindle, and the stator is connected with the rotating arm to maintain the continuity of electrical connection when relative sliding occurs. Therefore, potential damage to the pilot caused by sudden overshoot of torque is effectively avoided on the premise of not affecting the normal training function of the dynamic flight simulator, and reliable protection of the pilot can be realized under abnormal working conditions.

Inventors

CHEN LEI
SHU YANG
JIANG CHUNMEI
ZHOU YANGTING
CHENG YONGBO
ZHANG JIANQUAN

Assignees

中国工程物理研究院总体工程研究所

Dates

Publication Date: 20260505
Application Date: 20260214

Claims (10)

1. A torque overrun protection device for a rotor arm end of a dynamic flight simulator, comprising: the hydraulic expansion sleeve is sleeved on the main shaft and fixedly connected to the rotating arm, is used for transmitting torque within a rated torque range and slides relative to the main shaft when the torque exceeds the limit; the taper sleeve is in interference fit with the main shaft, and the taper sleeve is pressed against the conical surface of the inner wall of the hydraulic expansion sleeve through the conical surface of the taper sleeve, so that the transmission part of the hydraulic expansion sleeve is locked with the main shaft; the bearing assembly is arranged between the main shaft and the rotating arm or the hydraulic expansion sleeve; a rotary connector having a rotor connected to the spindle and a stator connected to the rotating arm to maintain continuity of the electrical connection as relative sliding occurs.
2. The torque overrun protection device for the boom end of a dynamic flight simulator of claim 1, wherein a closed oil chamber capable of being filled with hydraulic oil is arranged inside the hydraulic expansion sleeve.
3. The torque overrun protection device for the rotor arm end of the dynamic flight simulator according to claim 2, wherein the hydraulic expansion sleeve comprises an integrally formed connector and a main body, the connector is connected with the rotor arm, the oil cavity is arranged on the main body, and the connector is provided with an oil filling hole communicated with the oil cavity and a plug for sealing the oil filling hole.
4. A torque overrun protection device for the boom end of a dynamic flight simulator as claimed in claim 3 wherein the upper end of the main shaft is provided with a blade disposed opposite the plug for severing the plug when the drive torque exceeds a predetermined torque for the hydraulic expansion sleeve to enable the discharge of oil from the oil chamber via the break.
5. The torque overrun protection device for the rotor arm end of a dynamic flight simulator of claim 2, wherein the oil chamber is cylindrical and is disposed in a central region of the hydraulic expansion sleeve in a thickness direction.
6. The torque overrun protection device for a rotor arm end of a dynamic flight simulator of claim 1, wherein the bearing assembly comprises a thrust bearing and a radial bearing, the thrust bearing being mounted between an end face of the cone sleeve and the rotor arm, the radial bearing being mounted between the main shaft and the hydro-expansion sleeve.
7. The torque overrun protection device for the rotor arm end of a dynamic flight simulator of claim 1 wherein the rotor of the rotary connector is secured to the top end of the main shaft by fasteners.
8. The torque overrun protection device for the boom end of a dynamic flight simulator of claim 1 further comprising a stop bar connected to the top of the rotary connector for insertion into a corresponding socket.
9. The torque overrun protection device for the rotor arm end of a dynamic flight simulator of claim 8, wherein the top of the rotary connector is provided with a radially extending extension plate, and the pawl is vertically disposed and connected to the extension plate.
10. The torque overrun protection device for the rotor arm end of a dynamic flight simulator of claim 1, wherein the hydro-expansion sleeve is fixedly connected to the rotor arm by bolts, wherein the plurality of bolts are arranged at uniform intervals along the circumferential direction of the hydro-expansion sleeve.

Description

Torque overrun protection device for dynamic flight simulator rotating arm end Technical Field The invention relates to the technical field of flight simulators, in particular to a torque overrun protection device for a rotating arm end of a dynamic flight simulator. Background The dynamic flight simulator is a special device which utilizes the rotary motion to generate inertial centrifugal force and continuously accelerate when the ground simulates the maneuvering flight of the aircraft. The device is mainly applied to selection of fighter pilots, overweight adaptability training of astronauts and acceleration physiology research, can effectively improve the tolerance of operators in a high overload environment by vividly simulating flight loads, and has the characteristics of short dynamic response time of the system, large torque overload change rate and the like. In the design of a traditional dynamic flight simulator, the motor torque is generally transmitted by directly and rigidly connecting a main shaft with a rotating arm, so as to ensure the reliability of a connecting structure. However, the design method has a certain potential safety hazard in practical application, namely, a driving motor of the dynamic flight simulator usually keeps a certain torque margin, and in the process of equipment debugging or operation, although the probability is lower, the phenomenon of torque overshoot can still occur due to system abnormality. Once such conditions occur, pilots in a high overload environment are exposed to high physiological risks and may even cause fatal injuries. Therefore, how to effectively avoid potential damage to pilots caused by sudden overshoot of torque on the premise of not affecting the normal training function of the dynamic flight simulator becomes a technical problem to be solved in the field. In this regard, there is a further need for optimizing and improving the structure of the flight simulator so that it can achieve reliable pilot protection under abnormal conditions. Disclosure of Invention The invention aims to provide a torque overrun protection device for a rotating arm end of a dynamic flight simulator, so that potential damage to a pilot caused by sudden overshoot of torque is effectively avoided on the premise of not affecting the normal training function of the dynamic flight simulator, and the pilot can be reliably protected under abnormal working conditions. The invention is realized by the following technical scheme: a torque overrun protection device for a rotor arm end of a dynamic flight simulator, comprising: the hydraulic expansion sleeve is sleeved on the main shaft and fixedly connected to the rotating arm, is used for transmitting torque within a rated torque range and slides relative to the main shaft when the torque exceeds the limit; the taper sleeve is in interference fit with the main shaft, and the taper sleeve is pressed against the conical surface of the inner wall of the hydraulic expansion sleeve through the conical surface of the taper sleeve, so that the transmission part of the hydraulic expansion sleeve is locked with the main shaft; the bearing assembly is arranged between the main shaft and the rotating arm or the hydraulic expansion sleeve; a rotary connector having a rotor connected to the spindle and a stator connected to the rotating arm to maintain continuity of the electrical connection as relative sliding occurs. In one possible design, a closed oil cavity capable of being filled with hydraulic oil is arranged inside the hydraulic expansion sleeve. In one possible design, the hydraulic expansion sleeve comprises an integrally formed connecting body and a main body, wherein the connecting body is connected with the rotating arm, the main body is provided with the oil cavity, and the connecting body is provided with an oil filling hole communicated with the oil cavity and a plug used for sealing the oil filling hole. In one possible design, the upper end of the main shaft is provided with a blade arranged opposite to the plug, and the blade is used for cutting off the plug when the driving torque exceeds the preset torque of the hydraulic expansion sleeve so that the oil in the oil cavity can be discharged through a fracture. In one possible design, the working end of the blade is provided with an open slot for the insertion of a plug, and the inside of the open slot is provided with a sharp blade edge. In one possible design, the oil chamber is cylindrical and is disposed in a central region of the hydraulic expansion sleeve in a thickness direction. In one possible design, the bearing assembly includes a thrust bearing mounted between an end face of the cone sleeve and the swivel arm, and a radial bearing mounted between the spindle and the hydro-expansion sleeve. In one possible design, the rotor of the rotary connector is secured to the top end of the spindle by fasteners. In one possible design, the torque overrun protection device