CN114056549A

CN114056549A - Side lever device, side lever controller, side lever control method and aircraft

Info

Publication number: CN114056549A
Application number: CN202111282248.8A
Authority: CN
Inventors: 范申磊; 薛瀛; 罗鑫
Original assignee: Comac Shanghai Aircraft Design & Research Institute; Commercial Aircraft Corp of China Ltd
Current assignee: Comac Shanghai Aircraft Design & Research Institute; Commercial Aircraft Corp of China Ltd
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2022-02-18
Anticipated expiration: 2041-11-01
Also published as: CN114056549B

Abstract

The invention belongs to the technical field of side lever control of aircrafts and discloses a side lever device, a side lever controller, a side lever control method and an aircraft. The side rod device comprises a lock mechanism, a control main shaft and a turning shaft, wherein the turning shaft is used for arranging an operation handle, an axial channel is formed in the control main shaft, the turning shaft is axially and extendingly arranged in the axial channel, the lock mechanism can lock and unlock the control main shaft and the turning shaft, and when the control main shaft is locked, the turning shaft cannot rotate relative to the control main shaft and can drive the control main shaft to perform pitching and rolling operation on the aircraft; when unlocked, the turning axle is rotatable independently of the control main axle to perform nose wheel turning operations of the aircraft. The side rod device can realize the mutually independent operation of pitching and rolling of the aircraft and the turning of the front wheel, so that an operator of the aircraft can correctly sense the operating force and the force application direction.

Description

Side lever device, side lever controller, side lever control method and aircraft

Technical Field

The invention relates to the technical field of side lever control of aircrafts, in particular to a side lever device, a side lever controller, a side lever control method and an aircraft.

Background

Currently, sidestick control devices provided on aircraft typically enable pitch and roll motions of the aircraft. The sidestick control device is mounted to the sidestick console, where a nose wheel steering handle is also provided for controlling the nose wheel steering system of the aircraft. When the side control console is arranged in this way, the pilot needs to turn the handle from the front wheel turning handle to the side lever control device during taxiing, taking off and running of the airplane. Due to the use of the side rod control device, a pilot can obtain larger activity space, and meanwhile, the pilot can complete more excellent control on the airplane under the assistance of a computer.

The side lever control is mounted on a side console where space is limited and where a front wheel steering handle and side display are also mounted. In such limited spatial locations, it is often not easy to find the optimal placement of the front wheel steering handle and the sidebar control device, which may cause discomfort or interference to the pilot in manipulating the two manipulating components during actual use.

To this end, it is now common practice for pilots to be heavily trained to become familiar with and habitually adapt to this arrangement of front wheel turning handles and sidestick controls.

Disclosure of Invention

In view of at least some of the problems with the prior art described above, it is an object of an aspect of the present invention to provide a sidestick arrangement that enables independent operation of pitch-roll and nose wheel turning of an aircraft so that the operator of the aircraft can correctly perceive steering and force application directions.

In order to achieve the above object, the present invention provides a side lever device for a side lever controller of an aircraft, the side lever device comprising a lock mechanism, a control main shaft, and a turning shaft, the turning shaft being used for providing an operating handle, an axial channel being formed in the control main shaft, and an axial channel being provided in the turning shaft in an axially extending manner, wherein the lock mechanism is capable of locking and unlocking the control main shaft and the turning shaft, and when locked, the turning shaft is incapable of rotating relative to the control main shaft and is capable of driving the control main shaft to perform pitch and roll operations of the aircraft; when unlocked, the turning shaft is rotatable independently of the control main shaft to perform nose wheel turning operations of the aircraft.

In the technical scheme, the turning shaft is axially and extendedly arranged in the axial channel, the lock mechanism can lock and unlock the control main shaft and the turning shaft, the turning shaft cannot rotate relative to the control main shaft and can drive the control main shaft to perform pitching and rolling operations on the aircraft when the turning shaft is locked, and the turning shaft can rotate independently of the control main shaft to perform front wheel turning operations on the aircraft when the turning shaft is unlocked. Therefore, when the side lever device is used in practice, when the aircraft needs to perform pitching and rolling operations, an aircraft operator (usually a pilot) can operate the lock mechanism to lock the control main shaft and the turning shaft, and at the moment, the turning shaft cannot rotate relative to the control main shaft, so that the aircraft operator can drive the control main shaft to perform the pitching and rolling operations together through the operation handle; when the front wheel turning operation needs to be carried out, the aircraft operator can operate the lock mechanism to unlock the control main shaft and the turning shaft, and at the moment, the turning shaft can independently rotate relative to the control main shaft, so that the aircraft operator can operate the turning shaft to rotate to carry out the turning operation through the operating handle. Therefore, the side rod device can realize the mutually independent operation of pitching and rolling of the aircraft and the turning of the front wheel, so that an aircraft operator can correctly sense the operating force and the force application direction, and the convenience of pitching and rolling and turning of the aircraft and the front wheel is improved.

In some embodiments, the lock mechanism comprises a lock unit that is itself actuatable and the turning shaft is axially movable, wherein the control spindle and the turning shaft locking and unlocking can be achieved by the lock unit's own actuation or by the turning shaft's axial movement.

In some embodiments, when the locking unit acts and locks the control main shaft and the turning shaft, the turning shaft moves axially to unlock the control main shaft and the turning shaft; when the turning shaft moves axially and locks the control main shaft and the turning shaft, the locking unit acts to be able to unlock the control main shaft and the turning shaft.

In some embodiments, the lock mechanism includes a circumferential sliding groove and a locking hole which are communicated, the lock unit includes a telescopic lock rod, the lock unit is disposed on one of the control main shaft and the turning shaft, the circumferential sliding groove and the locking hole are formed on the other of the control main shaft and the turning shaft, the lock rod can be respectively located in the circumferential sliding groove and the locking hole, wherein the lock rod is locked when extending into the locking hole, and the lock rod is unlocked when retracting from the locking hole; the turning shaft axially moves to enable the extending locking rod to be locked when the locking rod enters the locking hole from the circumferential sliding groove, the turning shaft axially moves reversely to enable the locking rod to be unlocked when the locking rod enters the circumferential sliding groove from the locking hole, and when the turning shaft is unlocked, the locking rod and the circumferential sliding groove move relatively when the turning shaft rotates.

In some embodiments, the turning shaft is axially movable to cause the lock mechanism to lock and unlock the control main shaft and the turning shaft.

In some embodiments, the latch mechanism includes the locking lever to and the circumference spout and the locking hole of intercommunication, the locking lever sets up the control main shaft with on one of the axle that turns round, the circumference spout with the locking hole forms the control main shaft with on another one of the axle that turns round, the locking lever can be located respectively the circumference spout with in the locking hole, wherein, the axle axial displacement that turns round is so that the locking lever is followed the circumference spout enters into locking when in the locking hole, the axle that turns is reverse ground axial displacement so that the locking lever is followed the locking hole enters into unblock when the circumference spout is interior, wherein, when the unblock, when the axle that turns round rotates, the locking lever with the circumference spout relative displacement.

In some embodiments, the side lever arrangement comprises a locking arrangement, which is rotationally connected to the turning shaft and is capable of releasably locking the turning shaft against axial movement, wherein the turning shaft axial movement enables the locking arrangement to lock the turning shaft against axial movement when the control main shaft and the turning shaft are unlocked; when the locking device releases the axial movement of the turning shaft, the turning shaft can move reversely to lock the control main shaft and the turning shaft.

In some embodiments, the locking device comprises: a housing including an interior space having an opening; the guide rail structure comprises a positioning ring, a plurality of guide rail tooth groups which are uniformly distributed at intervals in the circumferential direction and have the same axial length extend out of the inner circumferential surface of a central hole of the positioning ring to the same axial side, a guide groove is formed between every two adjacent guide rail tooth groups, two guide rail teeth of each guide rail tooth group are connected through an outer wall so that a protruding guide groove is formed between the two guide rail teeth and the outer wall, the front end surfaces of all the guide rail teeth form inclined guide rail tooth inclined surfaces which are inclined to the same direction, a stopping inclined surface of the outer wall of each guide rail tooth group and a guide rail tooth inclined surface of one corresponding guide rail tooth are obliquely and horizontally connected so that a stopping tooth socket is formed between the two guide rail teeth, and the axial length of the stopping tooth socket is smaller than the axial length of the guide groove; the pressing cylinder is connected with the turning shaft in a rotating mode at one end, a plurality of protrusions are arranged on the outer peripheral surface of the pressing cylinder at intervals in the circumferential direction, a plurality of triangular teeth are formed on the edge of the other end of the pressing cylinder, and triangular grooves are formed between the adjacent triangular teeth; the cam comprises a base plate, a mounting cylinder and a plurality of cam teeth, wherein the mounting cylinder is arranged on the base plate, the cam teeth are uniformly distributed on the base plate at intervals around the circumferential direction of the mounting cylinder, the front end surfaces of the cam teeth form cam tooth inclined surfaces with the same inclination, and the radial tooth thickness of the cam teeth is larger than or equal to the sum of the radial tooth thicknesses of the guide rail teeth and the triangular teeth; the positioning ring is arranged on the opening edge of the opening so that the guide rail tooth group extends into the inner space, the mounting cylinder is arranged in the pressing cylinder, the cam and the pressing cylinder are positioned in the inner space together, the bulge is in sliding fit in the bulge guide groove, an elastic piece is arranged between the cam and the shell, and the cam tooth inclined surface is simultaneously contacted with the triangular teeth and the guide rail tooth inclined surface; when the turning shaft reciprocates axially to press and release the pressing cylinder, the cam can axially move and rotate under the action of axial pressing force and the elastic piece, so that the cam tooth can slide through the triangular tooth to enter the triangular groove, and the cam tooth can enter the next guide groove from the stop tooth groove in the rotating direction; wherein the locking device locks the axial movement of the turning shaft when the cam teeth enter the stopper tooth grooves; when the cam teeth enter the guide grooves, the locking device releases the axial movement of the turning shaft.

In some embodiments, the leading end of each of the projections is formed as a triangular tooth portion, each of the triangular tooth portions of the projections being identical in shape to a corresponding one of the triangular teeth and overlapping axially to form one thickened triangular tooth.

In some embodiments, the side lever device comprises a locking unit, wherein when unlocked, the locking unit supports and locks the locking device; when locked, the locking unit releases the support lock of the locking device.

In some embodiments, the lock mechanism includes a lock unit that is itself actuatable to lock and unlock the control spindle and the turning shaft.

In some embodiments, the lock mechanism includes a locking hole, the lock unit includes a locking lever that can stretch out and draw back, wherein, the lock unit sets up the control main shaft with on one of the turning axle, the locking hole is formed the control main shaft with on another one of the turning axle, the locking lever stretches into locking when in the locking hole, the locking lever is followed the locking is unblock when withdrawing in the locking hole.

In some embodiments, the sidebar device includes a turn damping device configured to provide turn damping to the turn axle.

In some embodiments, at least a portion of the mechanism of the lock mechanism is disposed on the control spindle, the turn damping device is disposed between the turning shaft and the control spindle, and the at least a portion of the mechanism passes through a space within the turn damping device.

In some embodiments, the turn damping device comprises an elastic body and connecting arms connected to opposite ends of the elastic body, the at least one part of the mechanism passes through a space between the connecting arms at the two ends, the connecting arm at one end is connected with a turn radial arm on the turn shaft, and the connecting arm at the other end is connected with a main shaft radial arm on the control main shaft.

In some embodiments, at least a portion of the mechanism of the lock mechanism is disposed on the control spindle, the turn damping device is connected to the turning shaft, and the turning shaft can be stopped by the at least a portion of the mechanism when the turn damping device is driven to rotate in the forward and reverse directions by the turning shaft, so that the turn damping device provides turn damping to the turning shaft.

In some embodiments, the turn damping device comprises an elastic body and connecting arms connected to opposite ends of the elastic body, the connecting arms at the two ends being connected to corresponding radial arms on the turning shaft, and the at least one part of the mechanism is located between the connecting arms at the two ends so as to be able to stop the connecting arms at either end to deform the elastic body to provide turn damping.

In some embodiments, the side bar arrangement includes a turn stop arrangement configured to limit a range of rotation of the turn axle.

In some embodiments, the turn stop means is disposed on the steering shaft and is capable of coming into stop contact with a spindle radial arm on the control spindle upon rotation of the steering shaft to define a range of rotation of the steering shaft.

In some embodiments, the sidebar device includes a turn transmission that is in power-transmitting connection with the turning axle to transmit a turning moment provided by rotation of the turning axle.

In some embodiments, the turning transmission device includes a turning angle position sensor, an arc rack and a sector gear block, the arc rack is connected with the turning shaft in a power transmission manner, the arc rack is engaged with the sector gear block, the sector gear block is rotatably arranged on the turning angle position sensor, the turning angle position sensor can convert received rotation of the sector gear block into an electric signal output, and when the turning angle position sensor is unlocked, the turning angle position sensor is fixed and does not rotate.

In some embodiments, the turning shaft is axially movable to cause the lock mechanism to lock and unlock the control main shaft and the turning shaft; the side lever device comprises a transition connecting device, the transition connecting device is matched with the turning shaft in a relatively rotating mode, the turning angle position sensor is arranged on the transition connecting device, and the turning shaft can drive the transition connecting device to move axially.

In another aspect, the present invention provides a sidebar controller including a pitch-roll device and the sidebar device of any of the above, wherein the control spindle is disposed on the pitch-roll device.

In another aspect, the present invention provides a side-stick control method for performing a nose wheel turning operation of an aircraft and a pitch-roll operation of the aircraft, wherein the side-stick control method includes axially extending a turning shaft within an axial channel of a control spindle, locking the turning shaft and the control spindle using a lock mechanism so that the turning shaft cannot rotate relative to the control spindle and can drive the control spindle to perform the pitch-roll operation of the aircraft, and unlocking the turning shaft and the control spindle by the lock mechanism so that the turning shaft can rotate independently of the control spindle to perform the nose wheel turning operation of the aircraft.

In the side lever control method, when the aircraft needs to perform pitching and rolling operations, an aircraft operator (usually a pilot) can operate the lock mechanism to lock the control main shaft and the turning shaft, and at the moment, the turning shaft cannot rotate relative to the control main shaft, so that the aircraft operator can drive the control main shaft to perform the pitching and rolling operations together through the operation handle; when the front wheel turning operation needs to be carried out, the aircraft operator can operate the lock mechanism to unlock the control main shaft and the turning shaft, and at the moment, the turning shaft can independently rotate relative to the control main shaft, so that the aircraft operator can operate the turning shaft to rotate to carry out the turning operation through the operating handle. Therefore, the side rod control method can realize the mutually independent operation of the pitching and rolling of the aircraft and the turning of the front wheel, so that the aircraft operator can correctly sense the operating force and the force application direction, and the convenience of the pitching and rolling of the aircraft and the turning of the front wheel is improved.

In some embodiments, the turning shaft is operated to move axially to unlock the control main shaft and the turning shaft when a lock unit of the lock mechanism acts and locks the control main shaft and the turning shaft; when the turning shaft moves axially and locks the control main shaft and the turning shaft, the locking unit is operated to act so as to unlock the control main shaft and the turning shaft.

Finally, the invention provides an aircraft provided with a side lever controller as described above, or capable of implementing any of the side lever control methods described above.

It will be apparent that elements or features described in a single embodiment above may be used alone or in combination in other embodiments.

Drawings

In the drawings, the size and the proportion do not represent the size and the proportion of an actual product. The figures are merely illustrative and certain unnecessary elements or features have been omitted for clarity.

FIG. 1 is a schematic diagram schematically illustrating an overall side view configuration of a sidebar controller according to one embodiment of the present invention.

FIG. 2 is a cross-sectional structural schematic of one position of the sidebar controller of FIG. 1.

FIG. 3 is an exploded view of the sidebar controller of FIG. 1.

FIG. 4 is a schematic perspective view of the sidebar device of the sidebar controller of FIG. 1 to effect electrical unlocking.

Fig. 5 is an enlarged schematic view of a circled portion iii in fig. 4, in which the turning shaft and the control spindle are unlocked.

FIG. 6 is a schematic perspective view of the sidebar device of the sidebar controller of FIG. 1 to effect electrical locking.

Fig. 7 is an enlarged schematic view of a circled portion iv of fig. 6, in which the turning shaft and the control spindle are locked.

FIG. 8 is an enlarged schematic view of a portion of the sidebar device of the sidebar controller of FIG. 1 to effect mechanical unlocking, wherein the kingpin and the control spindle are unlocked.

Fig. 9 is a schematic structural view of the steering shaft and the control spindle of fig. 8 for achieving mechanical locking.

Fig. 10 is a schematic view of the combination of the turn damping device and the lock mechanism of fig. 3.

Fig. 11 is a schematic view of the turn-stop device, turn actuator, turn damper device and lock mechanism of fig. 3.

Fig. 12 is a side view of the locking device of fig. 3.

Fig. 13 is a schematic cross-sectional view of a location in fig. 12.

Fig. 14 is a perspective view of the retaining ring of the locking arrangement of fig. 12.

Fig. 15 is a schematic view of the engagement structure of the pressing cylinder and the cam of the locking device of fig. 12.

Fig. 16 is a schematic view of the cooperating structure of the retaining ring, pressing cylinder and cam of the locking arrangement of fig. 12.

Description of the reference numerals

1-side lever control, 2-control spindle, 3-bending spindle, 4-operating handle, 5-locking unit, 6-circumferential runner, 7-locking hole, 8-locking lever, 9-locking device, 10-housing, 11-positioning ring, 12-guide set of teeth, 13-guide groove, 14-guide teeth, 15-outer wall, 16-lug guide groove, 17-guide tooth bevel, 18-stop bevel, 19-stop tooth groove, 20-pressing cylinder, 21-lug, 22-triangular tooth, 23-triangular groove, 24-cam, 25-base plate, 26-mounting cylinder, 27-cam tooth, 28-cam tooth bevel, 29-elastic element, 30-triangular tooth, 31-locking unit, 32-turn damping device, 33-at least part of mechanism, 34-elastomer, 35-connecting arm, 36-turn radial arm, 37-main shaft radial arm, 38-turn stopping device, 39-turn transmission device, 40-turn angle position sensor, 41-arc rack, 42-sector gear block, 43-transition connecting device, 44-pitch-roll device, 45-side rod device, 46-pitch damping spring assembly, 47-roll damping spring assembly, 48-frame body, 49-stopping plate, 50-arc plate and 51-connecting frame.

Detailed Description

The elastic module and the elastic pad of the present invention will be described in detail with reference to the accompanying drawings. What has been described herein is merely a preferred embodiment in accordance with the present invention and other ways of practicing the invention will occur to those skilled in the art and are within the scope of the invention.

In one aspect, referring to fig. 2, 3, 4-9, the invention provides a side lever device 45 for a side lever controller 1 of an aircraft, the side lever device 45 comprises a lock mechanism, a control main shaft 2, and a turning shaft 3, the turning shaft 3 is used for arranging an operating handle 4, an axial channel is formed in the control main shaft 2, and the turning shaft 3 is axially and extendingly arranged in the axial channel, wherein the lock mechanism can lock and unlock the control main shaft 2 and the turning shaft 3, and when the lock mechanism is locked, the turning shaft 3 cannot rotate relative to the control main shaft 2 and can drive the control main shaft 2 to perform pitching and rolling operations of the aircraft; when unlocked, the turning shaft 3 can be rotated independently of the control main shaft 2 to perform the nose wheel turning operation of the aircraft.

In this side bar device 45, since the turning shaft 3 is axially extendedly provided in the axial passage of the control main shaft 2, and the lock mechanism can lock and unlock the control main shaft 2 and the turning shaft 3, and at the time of locking, the turning shaft 3 cannot rotate relative to the control main shaft 2 and can bring the control main shaft 2 to perform pitch-roll operation of the aircraft, and at the time of unlocking, the turning shaft 3 can rotate independently of the control main shaft 2 to perform front wheel turning operation of the aircraft. Thus, in practical use, when the aircraft needs to perform pitching and rolling operations, an aircraft operator (usually a pilot) can operate the lock mechanism to lock the control main shaft 2 and the turning shaft 3, and at the moment, the turning shaft 3 cannot rotate relative to the control main shaft 2, so that the aircraft operator can drive the control main shaft 2 to perform pitching and rolling operations together by the turning shaft 3 through the operation handle 4; when the front wheel turning operation needs to be carried out, the aircraft operator can operate the lock mechanism to unlock the control main shaft 2 and the turning shaft 3, and at the moment, the turning shaft 3 can independently rotate relative to the control main shaft 2, so that the aircraft operator can operate the turning shaft 3 to rotate through the operating handle 4 to carry out the turning operation. Therefore, the side rod device 45 can realize the mutually independent operation of the pitching rolling and the front wheel turning of the aircraft, so that the aircraft operator can correctly sense the operating force and the force application direction, and the convenience of the pitching rolling and the front wheel turning of the aircraft is improved.

In addition, the aircraft may be of various types, for example the sidestick arrangement may be for an aircraft that is actually capable of flying, such as a passenger aircraft, or may be for a flight simulation aircraft, which may be a flight simulation trainer for the daily training of pilots, or may be a flight simulation amusement ride for consumers to experience a flight, etc.

In this side lever device, it should be noted that the lock mechanism may have various types of structures, and the arrangement of the lock mechanism may have various arrangements, and therefore, whatever the type of structure adopted for the lock mechanism, what the arrangement of the lock mechanism is, as long as the locking and unlocking of the control main shaft 2 and the turning shaft 3 can be achieved.

For example, in one specific embodiment, the lock mechanism includes a lock unit 5, the lock unit 5 itself can act, and the turning shaft 3 can move axially, wherein the locking and unlocking of the control main shaft 2 and the turning shaft 3 can be realized by the self-action of the lock unit 5, or by the axial movement of the turning shaft 3, so that an aircraft operator can select to control the locking and unlocking of the main shaft 2 and the turning shaft 3 to be realized by the self-action of the lock unit 5 or by the axial movement of the turning shaft 3 according to the self-requirement, thereby improving the selectivity, or when one of the main shaft 2 and the turning shaft 3 fails, the aircraft operator can select the other one in time to operate, so as to realize the locking and unlocking of the control main shaft 2 and the turning shaft 3. In addition, the self-action of the lock unit 5 may include rotation or movement.

In addition, in the side lever device 45, the action of the lock unit 5 and the turning shaft 3 may have the following fitting relationship: when the locking unit 5 acts and locks the control main shaft 2 and the turning shaft 3, the turning shaft 3 axially moves to unlock the control main shaft 2 and the turning shaft 3, so that when the locking unit 5 fails to unlock the control main shaft 2 and the turning shaft, an aircraft operator can operate the turning shaft 3 to axially move to unlock the control main shaft 2 and the turning shaft 3. Similarly, when the turning shaft 3 moves axially and locks the control main shaft 2 and the turning shaft 3, the lock unit 5 acts to be able to unlock the control main shaft 2 and the turning shaft 3. In this way, when the turning shaft 3 fails to move reversely to unlock the control main shaft 2 and the turning shaft, the aircraft operator can operate the lock unit 5 to act to unlock the control main shaft 2 and the turning shaft 3.

In addition, such a fitting relationship of the action of the lock unit 5 and the turning shaft 3 can be achieved by various embodiments, for example, in one embodiment, the control spindle 2 is provided with an elastic ball through a spring, the outer peripheral surface of the turning shaft 3 is formed with a locking groove, the locking groove has an axial side wall with an inclined inlet surface, the circumferential side wall of the locking groove can block the elastic ball, an operator can pull the spring through an external component, the elastic ball can enter the locking groove under the action of the spring, when the elastic ball enters the locking groove, the circumferential side wall of the locking groove blocks the elastic ball to lock the control main shaft 2 and the turning shaft 3, so that the turning shaft 3 can not rotate independently of the control main shaft 2, after an operator pulls the spring through an external component, the elastic ball can be disengaged from the lock groove and abut against the outer peripheral surface of the turning shaft 3, and the main shaft 2 and the turning shaft 3 are controlled to be unlocked. When the elastic ball enters the locking groove, the turning shaft 3 is moved downwards, the elastic ball slides out from the locking groove through the inclined inlet surface to unlock the control main shaft 2 and the turning shaft 3, and when the turning shaft 3 is moved reversely, the elastic ball enters the locking groove again through the inclined inlet surface to lock the control main shaft 2 and the turning shaft 3 again.

Alternatively, in another embodiment, referring to fig. 5, 7-9, the lock mechanism includes a circumferential sliding groove 6 and a locking hole 7 which are communicated, the lock unit 5 includes a telescopic lock bar 8, the lock unit 5 is disposed on one of the control main shaft 2 and the turning shaft 3, the circumferential sliding groove 6 and the locking hole 7 are formed on the other of the control main shaft 2 and the turning shaft 3, for example, as shown in the figure, the circumferential sliding groove 6 and the locking hole 7 are formed on the turning shaft 3, and the lock bar 8 can be respectively located in the circumferential sliding groove 6 and the locking hole 7, wherein the lock bar 8 locks the control main shaft 2 and the turning shaft 3 when extending into the locking hole 7, and the lock bar 8 unlocks the control main shaft 2 and the turning shaft 3 when retracting from and withdrawing from the locking hole 7; and the turning shaft 3 moves axially to lock the control main shaft 2 and the turning shaft 3 when the protruding lock rod 8 enters the locking hole 7 from the circumferential chute 6, and the turning shaft 3 moves axially in the reverse direction to unlock the control main shaft 2 and the turning shaft 3 when the lock rod 8 enters the circumferential chute 6 from the locking hole 7, wherein when unlocking, the lock rod 8 and the circumferential chute 6 move relatively when the turning shaft 3 rotates.

In addition, the lock lever 8 may be obliquely extended or radially extended straight, for example, referring to fig. 5 and 6, the lock lever 8 of the lock unit 5 may be radially extended and retracted to lock the control main shaft 2 and the turning shaft 3 when being extended into the locking hole 7 and unlock the control main shaft 2 and the turning shaft 3 when being retracted from the locking hole 7. In addition, referring to fig. 8 and 9, when the lock lever 8 is extended, the turning shaft 3 is axially moved so that the lock lever 8 enters the locking hole 7 to lock the control main shaft 2 and the turning shaft 3, and when the turning shaft 3 is reversely moved so that the lock lever 8 enters the circumferential sliding groove 6 from the locking hole 7 to unlock the control main shaft 2 and the turning shaft 3, at this time, the turning shaft 3 is rotated so that the lock lever 8 and the circumferential sliding groove 6 are relatively rotated. Of course, the lock unit 5 may be provided on the control main shaft 2, and the lock hole 7 and the circumferential slide groove 6 may be provided on the turning shaft 3, or alternatively, the lock unit 5 may be provided on the turning shaft 3, and the lock hole 7 and the circumferential slide groove 6 may be provided on the control main shaft 2.

Alternatively, in another embodiment, the turning shaft 3 is axially movable so that the lock mechanism locks and unlocks the control main shaft 2 and the turning shaft 3, that is, the side lever device may be provided with only the turning shaft 3 axially movable, thereby achieving locking and unlocking of the control main shaft 2 and the turning shaft 3.

For example, referring to fig. 8 and 9, the lock mechanism includes a lock lever 8, and a circumferential sliding groove 6 and a locking hole 7 that communicate, the lock lever 8 being provided on one of the control main shaft 2 and the turning shaft 3, the circumferential sliding groove 6 and the locking hole 7 being formed on the other of the control main shaft 2 and the turning shaft 3, the lock lever 8 being able to be located in the circumferential sliding groove 6 and the locking hole 7, respectively, wherein the turning shaft 3 is axially moved to lock the lock lever 8 when entering the locking hole 7 from the circumferential sliding groove 6, and the turning shaft 3 is axially moved in the reverse direction to unlock the lock lever 8 when entering the circumferential sliding groove 6 from the locking hole 7, wherein the lock lever 8 and the circumferential sliding groove 6 are relatively moved when the turning shaft 3 is rotated at the time of unlocking. In the lock mechanism, the lock lever 8 may be held stationary, for example, the lock lever 8 may be provided on the control main shaft 2 and the lock hole 7 and the circumferential slide groove 6 may be provided on the turning shaft 3, or the lock lever 8 may be provided on the turning shaft 3 and the lock hole 7 and the circumferential slide groove 6 may be provided on the control main shaft 2.

In addition, in order to further improve the balance of the turning operation of the turning shaft 3 and to avoid the reverse movement of the turning shaft 3 due to the erroneous operation during the turning, referring to fig. 1-6, the side lever device includes a locking device 9, the locking device 9 is rotatably connected to the turning shaft 3 and can releasably lock the axial movement of the turning shaft 3, that is, the turning shaft 3 can rotate relative to the locking device 9, wherein the locking device 9 can lock the axial movement of the turning shaft 3 when the turning shaft 3 axially moves so that the control main shaft 2 and the turning shaft 3 are unlocked, at which time, since the turning shaft 3 cannot be reversely axially moved and the lower end of the turning shaft 3 is supported by a rotational connection point between the locking device 9 and the lower end thereof, the turning shaft 3 can be stably and reliably rotated to perform the front wheel turning operation of the aircraft; when the locking device 9 releases the axial movement of the steering shaft, the steering shaft 3 can move in the opposite direction to lock the control main shaft 2 and the steering shaft 3, and at the moment, the steering shaft 3 can act together with the control main shaft 2 to perform the pitching and rolling operation of the aircraft.

It should be noted here that the locking device 9 can have various configurations, for example, in one configuration of the locking device 9, the locking device 9 can comprise a radially arranged elastic bolt, the turning shaft 3 is formed with an annular groove, and the elastic bolt can enter into the annular groove or can be disengaged from the annular groove. For example, when the turning shaft 3 moves axially downwards to unlock the control main shaft 2 and the turning shaft 3, the elastic bolt enters the annular groove to lock the axial movement of the turning shaft 3, and at this time, the turning shaft 3 does not move upwards under the action of a certain external force. When the turning shaft 3 is lifted upwards by a preset force larger than a certain external force, so that the elastic bolt is separated from the annular groove, the locking device 9 releases the axial movement of the turning shaft, and at the moment, the turning shaft 3 can move upwards in the axial direction, so that the control main shaft 2 and the turning shaft 3 are locked.

Alternatively, in another structural form of the locking device 9, referring to fig. 12 to 16, the locking device 9 includes a housing 10, a positioning ring 11, a pressing cylinder 20 and a cam 24, wherein the housing 10 includes an inner space with an opening, a plurality of rail tooth sets 12 with the same axial length and circumferentially spaced are protruded from an inner circumferential surface of a center hole of the positioning ring 11 to the same axial side, a guide groove 13 is formed between adjacent rail tooth sets 12, two rail teeth 14 of each rail tooth set 12 are connected by an outer wall 15 such that a convex guide groove 16 is formed between the two rail teeth 14 and the outer wall 15, front end surfaces of all the rail teeth 14 are formed as obliquely identical rail tooth slopes 17, a stopper slope 18 of an outer wall of each rail tooth set 12 and a rail tooth slope of a corresponding one rail tooth are obliquely and flush connected such that a stopper tooth groove 19 is formed between the two rail teeth, the axial length of the stopper tooth groove 19 is smaller than that of the guide groove 13; meanwhile, one end of the pressing cylinder 20 is rotationally connected with the turning shaft 3, the outer peripheral surface of the pressing cylinder 20 is provided with a plurality of protrusions 21 at intervals in the circumferential direction, the edge of the other end of the pressing cylinder 20 is formed into a plurality of triangular teeth 22, triangular grooves 23 are formed between the adjacent triangular teeth 22, the cam 24 comprises a base plate 25, a mounting cylinder 26 and a plurality of cam teeth 27, the mounting cylinder 26 is arranged on the base plate 25, the plurality of cam teeth 27 are uniformly distributed on the base plate 25 at intervals in the circumferential direction around the mounting cylinder 26, the front end surfaces of the plurality of cam teeth 27 are formed into cam tooth inclined surfaces 28 with the same inclined direction, and the radial tooth thickness of the cam teeth 27 is more than or equal to the sum of the radial tooth thicknesses of the guide rail teeth 14 and the triangular teeth 22; wherein, the positioning ring 11 is arranged on the opening edge of the opening to make the guide rail tooth group 12 extend into the inner space, the mounting cylinder 26 is arranged in the pressing cylinder 20, the cam 24 and the pressing cylinder are positioned in the inner space together, the bulge 21 is in sliding fit in the bulge guide groove 16, an elastic part 29 is arranged between the cam 24 and the shell 10, the elastic part 29 can be a spring or a rubber cylinder, and the cam tooth inclined plane 28 is simultaneously contacted with the triangular tooth 22 and the guide rail tooth inclined plane 17; wherein, when the turning shaft 3 reciprocates axially to press and release the pressing cylinder, the cam 24 can axially move and rotate under the action of the axial pressing force and the elastic piece 29, so that the cam teeth 27 can slide over the triangular teeth 22 into the triangular grooves 23, and the cam teeth 27 can enter the next guide groove 13 from the stop tooth grooves 19 in the rotating direction; when the turning shaft 3 is pressed to enable the cam teeth 27 to enter the stopping tooth grooves 19, the axial length of the stopping tooth grooves 19 is smaller than that of the guide grooves 13, and at the moment, the locking device 9 locks the axial movement of the turning shaft 3 through stopping of the stopping tooth grooves 19 on the cam teeth 27; when the turning shaft 3 is pressed again so that the cam teeth 27 enter the guide grooves 13, the axial movement of the locking device 9 to the turning shaft is released and the turning shaft 3 can be moved axially in the reverse direction so that the cam teeth 27 completely enter the guide grooves 13, so that the control main shaft 2 and the turning shaft 3 are locked.

In addition, the protrusion 21 may be located at any suitable position on the outer peripheral surface of the pressing cylinder 20 as long as it can be slidably fitted in the protrusion guide groove 16 to guide the pressing cylinder 20 to stably and reliably move axially in the positioning ring 11. For example, in one embodiment, referring to fig. 15, the front end of each protrusion 21 is formed as a triangular tooth portion 30, and the triangular tooth portion 30 of each protrusion 21 is the same shape as and axially overlaps with its corresponding one of the triangular teeth 22 to form one thickened triangular tooth. That is, each of the triangular teeth 30 and its corresponding triangular tooth 22 are overlapped to form a thickened triangular tooth that is in contact engagement with the cam tooth ramp 28. In addition, the thickened triangular teeth can improve the overall strength of the pressing cylinder 20.

Further, referring to fig. 1 to 6, the side lever device includes a locking unit 31, wherein, when unlocked, the locking unit 31 supports and locks the locking device 9, so that, by the support and locking of the locking unit 31, more stable and reliable support can be provided for the turning shaft 3, so that the turning shaft 3 can perform turning operation more stably; when locked, the locking unit 31 releases the support locking of the locking device 9, so that when the steering shaft 3 and the control main shaft 2 are allowed to perform the pitching and rolling operations of the aircraft together, the locking device 9 can be driven to perform corresponding actions, that is, the locking device 9 performs the pitching and rolling operations synchronously with the steering shaft 3.

Alternatively, in other embodiments, the lock mechanism includes a lock unit 5, and the lock unit 5 itself can act to lock and unlock the control main shaft 2 and the turning shaft 3, that is, the side lever device may be provided with only the lock unit 5, and the locking and unlocking of the control main shaft 2 and the turning shaft 3 is achieved by the self-action of the lock unit 5. Of course, it should be noted herein that the lock unit 5 may have various structural forms, for example, the lock unit 5 may be an air cylinder or a hydraulic cylinder, a piston rod of the air cylinder or the hydraulic cylinder may enter and exit the lock hole 7, or the lock unit 5 may be an electric cylinder, a rod body of the electric cylinder may enter and exit the lock hole 7, or the lock unit 5 may include a motor and a rack, a gear and a rack on an output shaft of the motor are engaged to drive the rack to reciprocate to enter and exit the lock hole 7, or the lock unit 5 may be a latch, and the latch may reciprocate to enter and exit the lock hole under a manual operation, or the lock unit 5 may include a swing arm, and the swing arm may swing to enter and exit the lock hole 7 under a manual operation of a driving motor or an operator. Alternatively, the lock unit 5 may include a lock hook and a lock tongue, one of which is provided on the control main shaft 2 and the other of which is provided on the turning shaft 3, and the lock hook and the lock tongue may be engaged and disengaged.

For example, in an embodiment, referring to fig. 5 and 7, the lock mechanism includes a lock hole 7, and the lock unit 5 includes a lock bar 8 capable of being extended and retracted, wherein the lock unit 5 is provided on one of the control main shaft 2 and the turning shaft 3, and the lock hole 7 is formed on the other of the control main shaft 2 and the turning shaft 3, for example, in fig. 5 and 7, the lock unit 5 is provided on the control main shaft 2, and the lock hole 7 is formed on the turning shaft 3, so that the lock bar 8 is locked when it is extended into the lock hole 7, and the lock bar 8 is unlocked when it is retracted and withdrawn from the lock hole 7. Of course, the locking rod 8 can be the above-mentioned piston rod, rod body, rack, latch, or swing arm.

In addition, referring to fig. 1-4 and fig. 10 and 11, the side bar arrangement includes a turn damping device 32, the turn damping device 32 being capable of providing turn damping to the turning shaft 3. Thus, it is possible to provide a feeling of force when the turning shaft 3 is turned to perform a turning operation, and at the same time, to drive the turning shaft 3 to return to the neutral position. Of course, the turn damping means 32 can be arranged on an externally mounted basis of the side bar arrangement, for example on an outer frame, or the turn damping means 32 can be arranged on the side bar arrangement, for example on the control main shaft 2 of the side bar arrangement.

For example, in one arrangement of the turn damping device 32, referring to fig. 1, 2, 10 and 11, at least a portion of the mechanism 33 of the lock mechanism is disposed on the control spindle 2, e.g., at least a portion of the mechanism 33 of the lock mechanism includes a link bracket 51, referring to fig. 11, the link bracket 51 may be fixedly attached to the control spindle 2, the turn damping device 32 is disposed between the turn shaft 3 and the control spindle 2, and at least a portion of the mechanism 33 passes through a space within the turn damping device 32. In this way, the internal space of the turn damping device 32 itself can be fully utilised to arrange at least part of the mechanism 33 of the lock mechanism, thereby making the arrangement of the lock mechanism and turn damping device 32 more compact, which can further reduce the footprint of the side bar apparatus, for example, which can be more advantageous in mounting the side bar apparatus on a side console where space is limited to provide a more optimal arrangement with other components on the side console.

In addition, in the side lever device, the turn damper 32 may have various types of structures, but any type of structure may be adopted for the turn damper 32 as long as it can provide a force feeling when the turning shaft 3 is turned to perform a turning operation and can drive the turning shaft 3 to return to the neutral position. For example, referring to fig. 10 and 11, in one type of construction of the turn damper 32, the turn damper 32 includes an elastic body 34 and connecting arms 35 connected to opposite ends of the elastic body 34, the elastic body 34 may be a spring or a rubber post, at least a portion of the mechanism 33 passes through a space between the connecting arms 35 at the opposite ends, the connecting arm 35 at one end is connected to a turn radial arm 36 on the turn shaft 3, and the connecting arm 35 at the other end is connected to a spindle radial arm 37 on the control spindle 2. Thus, when the turning shaft 3 is rotated forward and backward, the elastic body 34 is stretched or compressed, and the elastic body 34 stores energy to provide a force feeling when the turning shaft 3 is rotated for turning operation, and at the same time, drives the turning shaft 3 to return to the neutral position when releasing the energy.

For example, in another arrangement of the turn damping device 32, at least a part of the mechanism 33 of the lock mechanism is arranged on the control main shaft 2, the turn damping device 32 is connected to the turning shaft 3, and the turning shaft 3 can be stopped by at least a part of the mechanism 33 when the turning damping device 32 rotates forwards and backwards, so that the turn damping device 32 can provide turn damping for the turning shaft 3. In this way, the internal space of the turn damping device 32 itself can be fully utilised to arrange at least part of the mechanism 33 of the lock mechanism, thereby making the arrangement of the lock mechanism and turn damping device 32 more compact, which can further reduce the footprint of the side bar apparatus, for example, which can be more advantageous in mounting the side bar apparatus on a side console where space is limited to provide a more optimal arrangement with other components on the side console.

In addition, in the side lever device, the turn damper 32 may have various types of structures, but any type of structure may be adopted for the turn damper 32 as long as it can provide a force feeling when the turning shaft 3 is turned to perform a turning operation and can drive the turning shaft 3 to return to the neutral position. For example, referring to fig. 10 and 11, in one type of construction of the turn damping device 32, the turn damping device 32 includes an elastic body 34 and connecting arms 35 connected to opposite ends of the elastic body 34, the connecting arms 35 at the opposite ends being connected to corresponding radial arms (such as a turn radial arm 36) on the turn shaft 3, the elastic body 34 may be a spring or a rubber column, and at least a portion of the mechanism 33 is located between the connecting arms 35 at the opposite ends to stop the connecting arms 35 at either end to deform the elastic body 34 to provide turn damping. Thus, when the turning shaft 3 is rotated in the forward and reverse directions, the connecting arm 35 at one end is stopped by at least a part of the mechanism 33, and the connecting arm 35 at the other end rotates along with the turning shaft 3 to stretch the elastic body 34, so that the elastic body 34 is stretched and stored energy to provide a force feeling when the turning shaft 3 rotates for turning operation, and at the same time, the turning shaft 3 can be driven to return to the neutral position when the energy is released.

In addition, with reference to fig. 1 and 11, the side lever arrangement comprises a turn stop 38, the turn stop 38 being able to define the turning range of the turning shaft 3. Thus, the turning range of the turning shaft 3 can be limited when the turning shaft 3 is turned to perform a turning operation, and the turning shaft 3 is prevented from excessively turning. In addition, the turn-stopping means 38 may be provided on an externally mounted basis of the side bar arrangement, for example on an external frame, or the turn-stopping means 38 may be provided on the side bar arrangement, for example on the turn axle 3 of the side bar arrangement. For example, in one embodiment, the turning stop 38 is provided on the turning shaft 3 and is capable of coming into stop contact with the spindle radial arm 37 on the control spindle 2 when the turning shaft 3 is rotated to define the rotation range of the turning shaft 3. Thus, when the turning shaft 3 rotates, the turning stopping device 38 is driven to rotate synchronously, when the turning stopping device 38 is in stopping contact with the main shaft radial arm 37 on one side, the rotation end point of the turning shaft 3 in one direction is defined, and when the turning stopping device 38 is in stopping contact with the main shaft radial arm 37 on the other side, the rotation end point of the turning shaft 3 in the other direction is defined.

In addition, the turn-stopping device 38 can have various configurations, for example, in one configuration, referring to fig. 11, the turn-stopping device 38 includes an arc-shaped plate 50 and a stop plate 49, the arc-shaped plate 50 is connected with the turning shaft 3, the stop plate 49 is connected with the arc-shaped plate 50, and the stop plate 49 can be in stop contact with the spindle radial arms 37 on both sides.

In addition, referring to fig. 1 and 11, the side lever device includes a turning transmission 39, and the turning transmission 39 is power-transmission-connected with the turning shaft 3 to transmit a turning moment provided by the turning of the turning shaft 3, so that the turning transmission 39 can further transmit the turning moment to the turning system, or the turning transmission 39 can convert the turning moment into a turning signal to output.

The turning transmission 39 may have various types, for example, referring to fig. 11, in one type of the turning transmission 39, the turning transmission 39 includes a turning angle position sensor 40, an arc-shaped rack 41 and a sector-shaped block 42, the arc-shaped rack 41 is power-transmission-connected to the turning shaft 3, the arc-shaped rack 41 is engaged with the sector-shaped block 42, the sector-shaped block 42 is rotatably provided at the turning angle position sensor 40, the turning angle position sensor 40 can convert the received rotation of the sector-shaped block 42 into an electric signal output, and the turning angle position sensor 40 is fixed not to rotate when unlocked. Thus, when the turning shaft 3 rotates, the arc-shaped rack 41 is driven to rotate, the arc-shaped rack 41 drives the sector-shaped tooth block 42 to rotate, and thus, the turning angle position sensor 40 converts the received rotation of the sector-shaped tooth block 42 into an electric signal to be output.

In addition, referring to fig. 1, 2, 3 and 4, the turning shaft 3 is axially movable so that the lock mechanism locks and unlocks the control main shaft 2 and the turning shaft 3; the side lever arrangement comprises a transition connection 43, the transition connection 43 and the turning shaft 3 being able to cooperate in a relative rotational manner, the turning angle position sensor 40 being arranged on the transition connection 43, wherein the turning shaft 3 is able to bring about an axial displacement of the transition connection 43. In one embodiment, the transitional coupling device 43 is connected to the push cylinder 20 of the locking device 9. The transition connection means 43 may comprise a bearing.

In addition, the turning gear 39 can be directly power-driven connected with the turning shaft 3. Alternatively, the turn-limiting gear 39 can be indirectly connected in a power-transmitting manner via the turn-limiting gear 38 and the turn shaft 3, in which case the turn-limiting gear 38 can be arranged on the turn shaft 3 and the turn-limiting gear 39 can be connected to the turn-limiting gear 38. In addition, the connection position between the turning gear 39 and the turning stopper 38 can be adjusted, so that the installation position of the turning gear 39 can be adjusted. For example, referring to fig. 11, an arc-shaped slot is formed on the turn actuator 39 (e.g., an arc-shaped slot is formed on the arc-shaped rack 41), a connecting column above the turn stopper 38 is fitted and fixed in the arc-shaped slot to connect the turn stopper 38 and the turn actuator 39, and the connecting column can be adjusted and fixed along the arc-shaped slot to adjust the connection position between the turn actuator 39 and the turn stopper 38.

Further, the present application provides a sidebar controller 1, referring to fig. 1-4, the sidebar controller 1 including a pitch-roll device 44 and a sidebar device 45 as described in any of the above, wherein the control spindle 2 is disposed on the pitch-roll device 44. In this way, when the locking mechanism locks the control main shaft 2 and the turning shaft 3, the turning shaft 3 cannot rotate relative to the control main shaft 2 and can drive the control main shaft 2 to perform pitching and rolling operations of the aircraft through the pitching and rolling device 44; when the lock mechanism unlocks the control main shaft 2 and the turning shaft 3, the turning shaft 3 can be rotated independently of the control main shaft 2 and the pitch-roll device 44 to perform the nose wheel turning operation of the aircraft.

In addition, the pitch-roll device 44 may have various types as long as it is possible to set the control main shaft 2 to perform the pitch-roll operation. For example, referring to fig. 3, the pitch-roll apparatus 44 may include a pitch damping spring assembly 46, a roll damping spring assembly 47, and a frame 48, such that the control shaft 2 is disposed on the frame 48 and is capable of pitch-roll operation through the pitch damping spring assembly 46 and the roll damping spring assembly 47. The frame 48 may include an outer frame and an inner frame rotatably disposed in the outer frame, the control spindle 2 is disposed on the inner frame, and one of the pitch damping spring assembly 46 and the roll damping spring assembly 47 is disposed between the inner frame and the outer frame and the other is disposed on the outer frame.

In addition, the application also provides a side rod control method, which is used for realizing the front wheel turning operation of the aircraft and the pitching and rolling operation of the aircraft, wherein the side rod control method comprises the steps of axially extending a turning shaft in an axial channel of a control main shaft, locking the turning shaft and the control main shaft by using a locking mechanism so that the turning shaft cannot rotate relative to the control main shaft and can drive the control main shaft to perform the pitching and rolling operation of the aircraft, and unlocking the turning shaft and the control main shaft by using the locking mechanism so that the turning shaft can rotate independently of the control main shaft to perform the front wheel turning operation of the aircraft.

In addition, in the side lever control method, when the lock unit of the lock mechanism is actuated and the control main shaft and the turning shaft are locked, the turning shaft is operated to move axially to unlock the control main shaft and the turning shaft; thus, when the lock unit fails and cannot unlock the control main shaft and the turning shaft, an aircraft operator can operate the turning shaft to move axially to unlock the control main shaft and the turning shaft. Similarly, when the turning shaft moves axially and locks the control main shaft and the turning shaft, the operation locking unit acts to unlock the control main shaft and the turning shaft. In this way, when the turning shaft fails and cannot move reversely to unlock the control main shaft and the turning shaft, the aircraft operator can operate the locking unit to act so as to unlock the control main shaft and the turning shaft.

Of course, in this sidebar control method, controlling the locking and unlocking of the main shaft and the turning shaft can be achieved only by the turning shaft moving axially, or only by the locking unit action of the lock mechanism.

Finally, the present application provides an aircraft provided with a side lever controller as described above, or an aircraft capable of implementing a side lever control method as described above.

In addition, the aircraft may be of various types, for example, it may be an aircraft capable of actually flying, such as a passenger plane, or it may be a flight simulation aircraft, such as a flight simulation trainer for use in routine training of pilots, or it may be a flight simulation amusement machine for a consumer to experience a flight, or the like.

The scope of the invention is limited only by the claims. Persons of ordinary skill in the art, having benefit of the teachings of the present invention, will readily appreciate that alternative structures to the structures disclosed herein are possible alternative embodiments, and that combinations of the disclosed embodiments may be made to create new embodiments, which also fall within the scope of the appended claims.

Claims

1. A side lever device for a side lever controller (1) of an aircraft, comprising a lock mechanism, a control main shaft (2), and a turning shaft (3), the turning shaft (3) being used for setting an operating handle (4), an axial passage being formed in the control main shaft (2), the turning shaft (3) being provided in the axial passage extending axially, wherein the lock mechanism is capable of locking and unlocking the control main shaft (2) and the turning shaft (3),

when the aircraft is locked, the turning shaft (3) cannot rotate relative to the control main shaft (2) and can drive the control main shaft (2) to perform pitching and rolling operations of the aircraft;

when unlocked, the turning shaft (3) can be rotated independently of the control main shaft (2) to perform a nose wheel turning operation of the aircraft.

2. A sidebar device according to claim 1, characterized in that the lock mechanism comprises a lock unit (5), the lock unit (5) being itself actuatable, the turning shaft (3) being axially movable, wherein the control spindle (2) and the turning shaft (3) locking and unlocking can be achieved by the lock unit (5) itself being actuated or by the turning shaft (3) being axially movable.

3. A sidebar device according to claim 2, characterized in that when the locking unit (5) acts and locks the control spindle (2) and the turning shaft (3), the turning shaft (3) moves axially to be able to unlock the control spindle (2) and the turning shaft (3);

when the turning shaft (3) moves axially and locks the control main shaft (2) and the turning shaft (3), the locking unit (5) acts to unlock the control main shaft (2) and the turning shaft (3).

4. A side bar arrangement according to claim 3, characterized in that the lock mechanism comprises a circumferential sliding groove (6) and a locking hole (7) communicating with each other, the lock unit (5) comprises a telescopic locking bar (8), the lock unit (5) is arranged on one of the control main shaft (2) and the turning shaft (3), the circumferential sliding groove (6) and the locking hole (7) are formed on the other of the control main shaft (2) and the turning shaft (3), the locking bar (8) can be located in the circumferential sliding groove (6) and the locking hole (7), respectively, wherein,

the locking rod (8) is locked when extending into the locking hole (7), and the locking rod (8) is unlocked when retracting from the locking hole (7);

turning axle (3) axial displacement is so that stretch out locking lever (8) are followed locking lever (8) enter into when locking hole (7) are interior, turning axle (3) are reverse ground axial displacement so that locking lever (8) are followed locking hole (7) enter into when in the circumference spout (6) unblock, wherein, when the unblock, turning axle (3) rotate, locking lever (8) with circumference spout (6) relative movement.

5. A sidebar device according to claim 1, characterized in that the turning shaft (3) is axially movable so that the lock mechanism locks and unlocks the control spindle (2) and the turning shaft (3).

6. The side lever device of claim 5, wherein the lock mechanism comprises a lock rod (8) and a circumferential sliding groove (6) and a locking hole (7) that communicate, the lock rod (8) is disposed on one of the control main shaft (2) and the turning shaft (3), the circumferential sliding groove (6) and the locking hole (7) are formed on the other of the control main shaft (2) and the turning shaft (3), the lock rod (8) can be respectively located in the circumferential sliding groove (6) and the locking hole (7), wherein the turning shaft (3) axially moves so that the lock rod (8) is locked when entering the locking hole (7) from the circumferential sliding groove (6), the turning shaft (3) axially moves reversely so that the lock rod (8) is unlocked when entering the circumferential sliding groove (6) from the locking hole (7), when the unlocking is carried out, the lock rod (8) and the circumferential sliding groove (6) move relatively when the turning shaft (3) rotates.

7. A side bar arrangement according to any of the claims 2-6, characterized in that the side bar arrangement comprises locking means (9), which locking means (9) are in rotational connection with the turning shaft (3) and are capable of releasable locking of the turning shaft (3) against axial movement, wherein,

when the steering shaft (3) moves axially, so that the control main shaft (2) and the steering shaft (3) are unlocked, the locking device (9) can lock the axial movement of the steering shaft (3);

when the locking device (9) releases the axial movement of the turning shaft, the turning shaft (3) can move reversely to lock the control main shaft (2) and the turning shaft (3).

8. A side bar arrangement according to claim 7, characterized in that the locking means (9) comprises:

a housing (10), the housing (10) comprising an interior space having an opening;

a positioning ring (11), a plurality of guide rail tooth groups (12) which are uniformly distributed at intervals in the circumferential direction and have the same axial length extend out of the inner circumferential surface of a central hole of the positioning ring (11) to the same axial side, a guide groove (13) is formed between every two adjacent guide rail tooth groups (12), two guide rail teeth (14) of each guide rail tooth group (12) are connected through an outer wall (15) to form a convex guide groove (16) between the two guide rail teeth (14) and the outer wall (15), the front end surfaces of all the guide rail teeth (14) are formed into guide rail tooth inclined surfaces (17) which are the same in inclined direction, a stop inclined surface (18) of the outer wall of each guide rail tooth group (12) is connected with a guide rail tooth inclined surface of a corresponding guide rail tooth in an inclined flush manner to form a stop tooth groove (19) between the two guide rail teeth, the axial length of the stop tooth groove (19) is smaller than that of the guide groove (13);

the bending device comprises a pressing cylinder (20), one end of the pressing cylinder (20) is rotatably connected with the bending shaft (3), the outer peripheral surface of the pressing cylinder (20) is provided with a plurality of protrusions (21) at intervals in the circumferential direction, the edge of the other end of the pressing cylinder (20) is formed into a plurality of triangular teeth (22), and triangular grooves (23) are formed between the adjacent triangular teeth (22);

the cam (24) comprises a base plate (25), a mounting cylinder (26) and a plurality of cam teeth (27), the mounting cylinder (26) is arranged on the base plate (25), the cam teeth (27) are uniformly distributed on the base plate (25) at intervals in the circumferential direction of the mounting cylinder (26), the front end faces of the cam teeth (27) are formed into cam tooth inclined planes (28) which are the same in inclined direction, and the radial tooth thickness of the cam teeth (27) is larger than or equal to the sum of the radial tooth thicknesses of the guide rail teeth (14) and the triangular teeth (22);

wherein the positioning ring (11) is arranged on the opening edge of the opening so that the guide rail tooth group (12) extends into the inner space, the mounting cylinder (26) is arranged in the pressing cylinder (20), the cam (24) and the pressing cylinder are positioned in the inner space together, the bulge (21) is in sliding fit in the bulge guide groove (16), an elastic piece (29) is arranged between the cam (24) and the shell (10), and the cam tooth inclined plane (28) is simultaneously contacted with the triangular tooth (22) and the guide rail tooth inclined plane (17);

wherein when the turning shaft (3) is reciprocated and axially moved to press and release the pressing cylinder, the cam (24) can be axially moved and rotated by the axial pressing force and the elastic member (29) so that the cam teeth (27) can slide over the triangular teeth (22) into the triangular grooves (23) and the cam teeth (27) can be moved from the stopper tooth grooves (19) into the next guide groove (13) in the rotating direction;

wherein the locking device (9) locks the axial displacement of the bending shaft (3) when the cam teeth (27) enter the stop tooth grooves (19); when the cam teeth (27) enter the guide grooves (13), the locking device (9) releases the axial movement of the bending shaft.

9. The sidebar device according to claim 8, characterized in that the front end of each of said projections (21) is formed as a triangular tooth (30), the triangular tooth (30) of each of said projections (21) and its corresponding one of said triangular teeth (22) being identically shaped and axially overlapping to form one thickened triangular tooth.

10. The side bar arrangement according to claim 7, characterized in that it comprises a locking unit (31), wherein, when unlocked, the locking unit (31) locks the locking arrangement (9) in support; when locked, the locking unit (31) releases the support lock of the locking device (9).

11. A sidebar device according to claim 1, characterized in that the lock mechanism comprises a lock unit (5), the lock unit (5) being itself actuatable to lock and unlock the control spindle (2) and the turning shaft (3).

12. The sidebar device according to claim 11, characterized in that the lock mechanism comprises a locking hole (7), the lock unit (5) comprises a telescopic locking bar (8), wherein the lock unit (5) is arranged on one of the control spindle (2) and the turning shaft (3), the locking hole (7) is formed on the other of the control spindle (2) and the turning shaft (3), the locking bar (8) locks when it extends into the locking hole (7), the locking bar (8) unlocks when it retracts out from the locking hole (7).

13. A side bar arrangement according to claim 1, characterized in that the side bar arrangement comprises a turn damping device (32), which turn damping device (32) is capable of providing turn damping to the turning axle (3).

14. A side lever arrangement according to claim 13, characterized in that at least a part of the mechanism (33) of the lock mechanism is arranged on the control main shaft (2), the turn damping device (32) being arranged between the turning shaft (3) and the control main shaft (2), said at least a part of the mechanism (33) passing through a space in the turn damping device (32).

15. A side lever arrangement according to claim 14, characterized in that the turn damping means (32) comprises an elastic body (34) and connecting arms (35) connected to opposite ends of the elastic body (34), said at least one part of the mechanism (33) passing through the space between the connecting arms (35) at both ends, the connecting arm (35) at one end being connected to a turning radial arm (36) on the turning shaft (3) and the connecting arm (35) at the other end being connected to a spindle radial arm (37) on the control spindle (2).

16. A side lever arrangement according to claim 13, characterized in that at least a part of the mechanism (33) of the lock mechanism is arranged on the control main shaft (2), the turn damping device (32) is connected to the turning shaft (3), and the turning shaft (3) can be stopped by the at least a part of the mechanism (33) when the turn damping device (32) is rotated in forward and reverse directions, so that the turn damping device (32) provides turn damping to the turning shaft (3).

17. A side lever arrangement according to claim 16, characterized in that the turn damping means (32) comprises an elastic body (34) and connecting arms (35) connected to opposite ends of the elastic body (34), the connecting arms (35) at both ends being connected to corresponding radial arms on the turning shaft (3), said at least one part of the mechanism (33) being located between the connecting arms (35) at both ends to be able to stop the connecting arms (35) at either end to deform the elastic body (34) to provide turn damping.

18. The side bar arrangement according to claim 1, characterized in that it comprises turn stop means (38), said turn stop means (38) being able to define the turning range of the turning axle (3).

19. A side lever arrangement according to claim 18, characterized in that the turn stop means (38) are arranged on the turning shaft (3) and are capable of coming into stop contact with a main shaft radial arm (37) on the control main shaft (2) when the turning shaft (3) is turned to define the turning range of the turning shaft (3).

20. A side lever arrangement according to claim 1, characterized in that the side lever arrangement comprises a turning gear (39), which turning gear (39) is in power transmission connection with the turning shaft (3) for transmitting a turning moment provided by the turning of the turning shaft (3).

21. The side lever device according to claim 20, wherein the turning transmission device (39) comprises a turning angle position sensor (40), an arc-shaped rack (41) and a sector-shaped toothed block (42), the arc-shaped rack (41) is in power transmission connection with the turning shaft (3), the arc-shaped rack (41) is meshed with the sector-shaped toothed block (42), the sector-shaped toothed block (42) is rotatably arranged on the turning angle position sensor (40), the turning angle position sensor (40) can convert the received rotation of the sector-shaped toothed block (42) into an electric signal output, and the turning angle position sensor (40) is not fixed when unlocked.

22. A sidebar device according to claim 21, characterized in that the turning shaft (3) is axially movable so that the lock mechanism locks and unlocks the control spindle (2) and the turning shaft (3);

the side lever device comprises a transition connecting device (43), the transition connecting device (43) and the turning shaft (3) can be matched in a relative rotation mode, the turning angle position sensor (40) is arranged on the transition connecting device (43), and the turning shaft (3) can drive the transition connecting device (43) to move axially.

23. A sidebar controller, characterized in that it comprises a pitch-roll device (44) and a sidebar device (45) according to any one of claims 1-22, wherein the control spindle (2) is arranged on the pitch-roll device (44).

24. A side pole control method for effecting nose wheel turning operation of an aircraft and pitch-roll operation of the aircraft, wherein the side pole control method comprises disposing a turning shaft axially extending within an axial passage of a control spindle, locking the turning shaft and the control spindle with a lock mechanism such that the turning shaft cannot rotate relative to the control spindle and can drive the control spindle to effect the pitch-roll operation of the aircraft, unlocking the turning shaft and the control spindle with the lock mechanism such that the turning shaft can rotate independently of the control spindle to effect the nose wheel turning operation of the aircraft.

25. The sidebar control method according to claim 24, wherein when the locking unit of the lock mechanism acts and locks the control spindle and the turning shaft, the turning shaft is operated to move axially to unlock the control spindle and the turning shaft;

when the turning shaft moves axially and locks the control main shaft and the turning shaft, the locking unit is operated to act so as to unlock the control main shaft and the turning shaft.

26. An aircraft provided with a sidestick controller as claimed in claim 23 or capable of implementing a sidestick control method as claimed in claim 24 or 25.