CN216684872U

CN216684872U - Electromagnetic lock device of reverse thrust connecting rod of aircraft accelerator control console

Info

Publication number: CN216684872U
Application number: CN202122628622.7U
Authority: CN
Inventors: 刘雷; 王贝; 王治林; 梁赫
Original assignee: Avic Beijing Keeven Aviation Instrument Co ltd
Current assignee: Avic Beijing Keeven Aviation Instrument Co ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-06-07
Anticipated expiration: 2031-10-29

Abstract

The utility model relates to an electromagnetic lock device of a reverse thrust connecting rod of an aircraft accelerator control console, which is characterized in that: comprises a reverse push handle rod (1), a reverse push connecting rod (2), a reverse push wheel hub (3), a convex part (4), a mandril (5), a lock connecting rod (6), a lock driving end (7) and an electromagnetic lock (8). The electromagnetic lock transmission device has a simple structure, involves fewer components in the transmission process, and has better reliability; the armature of the electromagnetic lock is connected with the ejector rod through the connecting rod, so that the armature of the electromagnetic lock is prevented from being directly stressed while the unlocking and locking accuracy is improved; when the electromagnetic lock is in a locking state, the ejector rod is in direct rigid contact with the rolling body part, the reverse thrust locking can be reliably realized, and meanwhile, the electromagnetic lock can be rapidly unlocked under the action of a certain control force of a pilot through rolling friction; when the electromagnetic lock is unlocked, the ejector rod is located at the unlocking position, and sufficient clearance and movement space are reserved between the ejector rod and the rolling body part, so that the service life of the transmission device is prolonged.

Description

Electromagnetic lock device of reverse thrust connecting rod of aircraft accelerator control console

Technical Field

The utility model relates to the technical field of design of control mechanisms, and particularly provides an electromagnetic lock device of a reverse thrust connecting rod of an aircraft accelerator control console.

Background

The accelerator control console is a direct corollary device for a pilot to control an aircraft engine, has extremely high requirements on safety, and is often provided with functional components such as an electromagnetic lock or a mechanical lock to lock unexpected operation in order to increase the reliability of locking and unlocking of the engine reverse thrust operation and reduce misoperation of the pilot on the accelerator control console.

With the development of the telex technology, the accelerator control console has been developed into an electric transmission accelerator console with an automatic accelerator function, the accelerator console has no mechanical output, and the position information of forward pushing operation and backward pushing operation of the accelerator lever is transmitted to a corresponding system through electric signals. Meanwhile, the locking and unlocking of the backward operation require logical judgment of various sensor signals, which requires that the backward operation of the throttle platform must adopt the form of an electromagnetic lock to realize reliable locking and unlocking.

The electromagnetic lock requirements of throttle tables and other weaponry control system devices are mainly reflected in:

1) must remain locked when unlocking is not desired;

2) the unlocking can be smoothly carried out when the unlocking is expected;

3) in the whole life cycle of the product, the electromagnetic lock transmission device can keep the performance not to be attenuated in multiple locking and unlocking switching.

However, in the current domestic application, the problems of the electromagnetic lock mechanism occur frequently, and frequently occur, so that not only the operation of the related mechanism is influenced, but also hidden dangers are caused to the equipment safety. Research and experimental verification show that many problems are not generated on the electromagnetic lock body, but the transmission mechanism connected with the electromagnetic lock body generates problems, so that a high-reliability and high-safety electromagnetic lock transmission device is urgently needed to be designed.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is: an electromagnetic lock transmission device with compact structure, high transmission stability and low failure rate is designed and applied to an accelerator control console so as to realize the expected operation locking function of a thrust reverser component in the accelerator control console. The problem of the accelerator control console in the airborne power system that the unlocking/unlocking of the electromagnetic lock transmission device is stable under the conditions of the whole life cycle and the whole environmental working condition is solved.

The technical scheme of the utility model is as follows:

the electromagnetic lock device of the reverse thrust connecting rod of the aircraft accelerator control platform is provided, and comprises a reverse thrust handle rod 1, a reverse thrust connecting rod 2, a reverse thrust hub 3, a convex part 4, a mandril 5, a lock connecting rod 6, a lock driving end 7 and an electromagnetic lock 8;

the reverse pushing connecting rod 2 is rotationally connected with the reverse pushing handle rod 1, the reverse pushing hub 3 is rotationally arranged on a rigid structure of the console, and the reverse pushing connecting rod 2 is rotationally connected with the reverse pushing hub 3;

the outer edge of the reverse thrust hub 3 extends radially to form a convex part 4;

the electromagnetic lock 8 is arranged on the rigid structure of the console, the lock driving end 7 of the electromagnetic lock is rotationally connected with one end of the lock connecting rod, the other end of the lock connecting rod is rotationally connected to the middle area of the ejector rod 5, and the rear end of the ejector rod 5 is rotationally connected to the rigid structure of the console, so that the ejector rod can swing under the control of the lock driving end;

the front end of the ejector rod is matched with the protruding part 4, the ejector rod can swing to a locking position to limit the protruding part, and the reverse thrust wheel hub 3 cannot rotate; the ejector pin can also swing to the unblock position, relieves spacingly to the bulge for reverse thrust wheel hub 3 can rotate.

Further, the reverse thrust hub is arranged on the rigid structure of the console through a bearing.

Further, the protruding portion 4 is of a roller structure, the front end of the ejector rod is a plane, a first angle is formed between the roller and the plane in the movement direction of the position where the roller is in contact with the plane, and the first angle is smaller than 90 degrees.

Furthermore, the ejector rod is rotatably connected with the rigid structure of the control console through a pin shaft. Preferably, a deep groove ball bearing is arranged between the ejector rod and the pin shaft.

Furthermore, a return spring is arranged on the ejector rod to apply elastic pretightening force of the ejector rod to the locking position.

Furthermore, the working mode of the electromagnetic lock is normally open, and the electromagnetic lock is powered on, pulled in and unlocked. Preferably, the electromagnetic lock receives a control signal of the flight control system to realize unlocking.

The specific working principle is as follows:

1) when the electromagnetic lock is not electrified, the armature of the electromagnetic lock stretches out of the electromagnetic lock due to the pretightening force of the reset spring, the ejector rod is kept at a locking position through the lock connecting rod, and the ejector rod has a limiting effect on the counter push rod at the moment. When the reverse-thrust handle is operated from the reverse-thrust zero position to the reverse-thrust slow vehicle position (51.81 degrees), the reverse-thrust connecting rod drives the reverse-thrust hub to rotate, the roller part on the reverse-thrust hub is in limited locking after contacting the ejector rod, and the reverse-thrust rod is reliably limited in the reverse-thrust slow vehicle position through the limitation of the ejector rod.

2) After the throttle platform controller receives an unlocking signal, the electromagnetic lock is electrified and unlocked, the electromagnetic coil is electrified to generate a magnetic field, the electromagnetic pulling force drives the armature (driving end) to overcome the pretightening force of the reset spring for actuation, the ejector rod is in an unlocking position through transmission of the lock connecting rod, the roller part on the reverse thrust wheel hub cannot be blocked by the limit of the ejector rod, the reverse thrust handle rod can be pulled upwards to the reverse thrust maximum position (90 degrees) all the time, and a reverse thrust rod angle signal is output through the throttle platform angle sensor, so that the reverse thrust of the engine is controlled. Through the slope effect, prevent that the bulge still blocks with the ejector pin front end behind the electromagnetic lock unblock.

3) The unlocking signal is turned off, the electromagnetic lock is powered off, the electromagnetic pulling force disappears, the armature iron pops up, and the ejector rod is restored to the locking position through the transmission of the connecting rod. At the moment, the reverse push rod can be easily operated from the reverse push maximum position to the reverse push slow parking space and then to the reverse push zero position, and once the reverse push slow parking space is entered, the reliable locking of the reverse push rod can be realized through the electromagnetic lock transmission device.

The utility model has the advantages that:

1) the electromagnetic lock transmission device has a simple structure, fewer components are involved in the transmission process, and the reliability is better;

2) the armature of the electromagnetic lock is connected with the ejector rod through the connecting rod, so that the armature of the electromagnetic lock is prevented from being directly stressed while the unlocking and locking accuracy is improved;

3) when the electromagnetic lock is in a locking state, the ejector rod is in direct rigid contact with the rolling body part, reverse thrust locking can be reliably realized, and meanwhile, the electromagnetic lock can be rapidly unlocked under the action of a certain control force of a pilot through rolling friction;

4) when the electromagnetic lock is unlocked, the ejector rod is located at the unlocking position, and sufficient clearance and movement space are reserved between the ejector rod and the rolling body part, so that the service life of the transmission device is prolonged.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of the principle of force applied to the roller protrusion and the plane in the embodiment;

wherein: 1-backward pushing handle bar, 2-backward pushing connecting rod, 3-backward pushing hub, 4-bulge, 5-ejector rod, 6-locking connecting rod, 7-locking driving end, 8-electromagnetic lock, and 9-first angle.

Detailed Description

The disclosed examples will be described more fully with reference to the accompanying drawings, in which some (but not all) of the disclosed examples are shown. Indeed, many different examples may be described and should not be construed as limited to the examples set forth herein. Rather, these examples are described so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

The electromagnetic lock transmission device is characterized in that: the lock comprises a reverse push handle rod 1, a reverse push connecting rod 2, a reverse push hub 3, a convex part 4, a top rod 5, a lock connecting rod 6, a lock driving end 7 and an electromagnetic lock 8;

the electromagnetic lock 8 is arranged on the rigid structure body of the control console, the lock driving end 7 of the electromagnetic lock is rotationally connected with one end of the lock connecting rod, the other end of the lock connecting rod is rotationally connected to the middle area of the ejector rod 5, and the rear end of the ejector rod 5 is rotationally connected to the rigid structure body of the control console, so that the ejector rod can swing under the control of the lock driving end;

the front end of the ejector rod is matched with the protruding part 4, the ejector rod can swing to a locking position to limit the protruding part, and the reverse thrust wheel hub 3 cannot rotate; the ejector rod can also swing to the unlocking position, and the protruding part is relieved from limiting, so that the reverse thrust hub 3 can rotate.

The reverse thrust hub is arranged on the rigid structure of the console through a bearing.

The protruding part 4 is of a roller structure, the front end of the ejector rod is a plane, the roller and the plane form a first angle in the moving direction of the plane contact position, and the first angle is smaller than 90 degrees.

The ejector rod is rotatably connected with the rigid structure body of the control console through a pin shaft. Preferably, a deep groove ball bearing is arranged between the ejector rod and the pin shaft.

And the ejector rod is provided with a return spring for applying the elastic pretightening force of the ejector rod to the locking position.

The working mode of the electromagnetic lock is normally open, and the electromagnetic lock is powered on, pulled in and unlocked. Preferably, the electromagnetic lock receives a control signal of the flight control system to realize unlocking.

The description of the different advantageous arrangements has been presented for purposes of illustration and description, but is not intended to be exhaustive or limited to the examples in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. Additionally, the different advantageous examples may describe different advantages as compared to other advantageous examples. The example or examples selected are chosen and described in order to best explain the principles of the examples, the practical application, and to enable others of ordinary skill in the art to understand the disclosure for various examples with various modifications as are suited to the particular use contemplated.

Claims

1. Electromagnetic lock device of aircraft throttle control cabinet counterthrust connecting rod, its characterized in that: comprises a reverse push handle rod (1), a reverse push connecting rod (2), a reverse push wheel hub (3), a convex part (4), a mandril (5), a lock connecting rod (6), a lock driving end (7) and an electromagnetic lock (8);

the reverse pushing connecting rod (2) is rotationally connected with the reverse pushing handle rod (1), the reverse pushing hub (3) is rotationally arranged on a rigid structure of the console, and the reverse pushing connecting rod (2) is rotationally connected with the reverse pushing hub (3);

the outer edge of the reverse thrust hub (3) extends radially to form a convex part (4);

the electromagnetic lock (8) is arranged on the rigid structure of the control console, a lock driving end (7) of the electromagnetic lock is rotationally connected with one end of the lock connecting rod, the other end of the lock connecting rod is rotationally connected to the middle area of the ejector rod (5), and the rear end of the ejector rod (5) is rotationally connected to the rigid structure of the control console, so that the ejector rod can swing under the control of the lock driving end;

the front end of the ejector rod is matched with the protruding part (4), the ejector rod can swing to a locking position to limit the protruding part, and the reverse thrust wheel hub (3) cannot rotate; the ejector rod can also swing to the unlocking position, and the protruding part is relieved to limit, so that the reverse thrust wheel hub (3) can rotate.

2. The electromagnetic lock device of the thrust link of the aircraft throttle console as set forth in claim 1, characterized in that: the reverse thrust hub is arranged on the rigid structure of the console through a bearing.

3. An electromagnetic lock device for an aircraft throttle console thrust reverser linkage as claimed in claim 1, wherein: the protruding portion (4) is of a roller structure, the front end of the ejector rod is a plane, a first angle is formed between the movement direction of the roller and the plane at the position where the roller is in contact with the plane, and the first angle is smaller than 90 degrees.

4. An electromagnetic lock device for an aircraft throttle console thrust reverser linkage as claimed in claim 1, wherein: the ejector rod is rotatably connected with the rigid structure body of the control console through a pin shaft.

5. An electromagnetic lock device for an aircraft throttle console thrust reverser linkage as claimed in claim 1, wherein: and the ejector rod is provided with a return spring for applying elastic pretightening force of the ejector rod to the locking position.

6. An electromagnetic lock device for an aircraft throttle console thrust reverser linkage as claimed in claim 1, wherein: the working mode of the electromagnetic lock is normally open, and the electromagnetic lock is powered on, pulled in and unlocked.

7. An electromagnetic lock device for an aircraft throttle console thrust reverser linkage as claimed in claim 4, wherein: a deep groove ball bearing is arranged between the ejector rod and the pin shaft.