CN217969915U

CN217969915U - Course slip ring mechanism for semi-differential course control system of unmanned helicopter

Info

Publication number: CN217969915U
Application number: CN202222526570.7U
Authority: CN
Inventors: 王放; 徐安安; 高成; 王保堂; 兰珂文; 郝亚超; 李岩
Original assignee: Hubei Xinghang Aviation Technology Co ltd
Current assignee: Hubei Xinghang Aviation Technology Co ltd
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2022-12-06
Anticipated expiration: 2032-09-23

Abstract

The utility model discloses a course sliding ring mechanism for unmanned helicopter semi-differential course operating system, including last rotor mechanism and lower rotor mechanism, upward be provided with sliding ring mechanism body between rotor mechanism and the lower rotor mechanism, sliding ring mechanism body includes sliding ring and lower sliding ring, it has the pull rod to hinge between sliding ring and the lower sliding ring, the both ends of pull rod are fixed with the go-between, the equal integrated into one piece of outer wall of going up sliding ring and lower sliding ring has the support that is central symmetric distribution, there is the screw rod inside of support through threaded connection, the other end integrated into one piece of screw rod has the joint ball, the go-between cup joints the outside at the joint ball. The utility model discloses a go-between and the joint ball that sets up utilize the joint ball to make pull rod and last sliding ring and lower sliding ring articulate for when going up sliding ring and lower sliding ring vibration, the pull rod can carry out self-adaptation regulation with the articulated direction of last sliding ring and lower sliding ring, and then prevents that the pull rod from taking place to damage because of the atress is uneven.

Description

Course slip ring mechanism for semi-differential course control system of unmanned helicopter

Technical Field

The utility model relates to an unmanned helicopter technical field, concretely relates to course sliding ring mechanism for unmanned helicopter semi-differential course control system.

Background

The coaxial double-rotor helicopter is provided with an upper rotor and a lower rotor which rotate around a same shaft in a positive and negative way, because the rotation directions are opposite, the torques generated by the two rotors are mutually balanced under the flight state with invariable course, the course control can be realized by generating unbalanced torque through the differential action of the total torque of the upper rotor and the lower rotor, and the coaxial double-rotor is a lifting surface and a control surface of the longitudinal direction, the transverse direction and the course in the flight of the helicopter.

Chinese patent No. CN201520872623.8 discloses a coaxial unmanned helicopter control system for half-differential course control of an upper rotor wing, which comprises a lower rotor wing collective pitch and periodic variable pitch control system and an upper rotor wing collective pitch and periodic variable pitch control system; the total pitch and periodic pitch control system of the lower rotor is positioned on the lower rotor shaft, the total pitch and periodic pitch control system of the upper rotor is positioned on the upper rotor shaft, and the two systems are mutually independent.

In the unmanned helicopter control system in the above patent, the both ends of upper and lower inclinator connecting rod are directly articulated through axle and upper rotor automatic inclinator outer loop and lower rotor automatic inclinator inner loop, however in unmanned helicopter control system actual work, the degree of freedom restriction that directly passes through axle articulated upper and lower inclinator connecting rod is too big for the articulated state of upper and lower inclinator connecting rod can not carry out self-adaptation adjustment according to moment, and then leads to upper and lower inclinator connecting rod both ends to take place to damage because of the unbalanced stress easily. Therefore, there is a need to design a heading slip ring mechanism for a semi-differential heading control system of an unmanned helicopter to solve the above problems.

Disclosure of Invention

The utility model aims at providing a course sliding ring mechanism that is used for unmanned helicopter semi-differential course control system to solve the above-mentioned weak point among the prior art.

In order to achieve the above object, the present invention provides the following technical solutions:

the course slip ring mechanism comprises an upper rotor mechanism and a lower rotor mechanism, wherein a slip ring mechanism body is arranged between the upper rotor mechanism and the lower rotor mechanism, the slip ring mechanism body comprises an upper slip ring and a lower slip ring, a pull rod is hinged between the upper slip ring and the lower slip ring, connecting rings are fixed at two ends of the pull rod, supports which are distributed in a central symmetry mode are integrally formed on the outer walls of the upper slip ring and the lower slip ring, a screw rod is connected to the inside of each support through a thread, a joint ball is integrally formed at the other end of the screw rod, and the connecting rings are sleeved outside the joint ball.

Furthermore, studs are integrally formed at two ends of the pull rod, threaded sleeves are integrally formed on the outer wall of the bottom of the connecting ring, and the studs are in threaded connection with the threaded sleeves.

Furthermore, the outer wall of the pull rod is provided with a clamping surface, and the clamping surface is positioned in the middle of the pull rod.

Furthermore, the outside of the screw rod is connected with a first locking nut through threads, and the outside of the stud is connected with a second locking nut through threads.

Further, the joint ball includes the ball core, the outer wall of ball core is provided with the carburization layer, the outer wall of carburization layer is provided with the nitriding layer.

Furthermore, the outer wall of one side of joint ball integrated into one piece has the rotation piece, the outer wall of one side of rotation piece is provided with hexagonal hole.

In the technical scheme, the utility model provides a pair of a course sliding ring mechanism for unmanned helicopter semi-differential course control system, beneficial effect is:

(1) Through the go-between and the joint ball that set up, utilize the joint ball to make the pull rod articulated with last sliding ring and lower sliding ring for when going up sliding ring and lower sliding ring vibration, the pull rod can carry out self-adaptation regulation with the articulated direction of last sliding ring and lower sliding ring, and then prevents that the pull rod from taking place to damage because of the unbalanced stress.

(2) Through the nitriding layer and the carburization layer that set up, utilize nitriding layer and carburization layer setting in the outside of ball core for hardness and the wear resistance of joint ball obtain improving, when carrying out articulated motion between joint ball and the go-between, the joint ball is difficult to because of taking place wearing and tearing.

(3) Through the swivel nut, the second locking nut and the stud which are arranged, the connecting rings are in threaded connection with the pull rod through the swivel nut, the swivel nut is locked and fixed on the stud through the second locking nut, the distance between the two connecting rings can be adjusted, and the pull rod is convenient to adjust the distance between the two connecting rings according to actual needs when the pull rod is installed.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

Fig. 1 is the utility model relates to an overall structure schematic diagram that course sliding ring mechanism embodiment for unmanned helicopter semi-differential course control system provided.

Fig. 2 is the utility model discloses a A department enlarges the structural schematic diagram that the course sliding ring mechanism embodiment that is used for unmanned helicopter semi-differential course control system provided.

Fig. 3 is a schematic view of a pull rod structure provided by an embodiment of a course slip ring mechanism for a semi-differential course control system of an unmanned helicopter.

Fig. 4 is the utility model discloses a joint ball inner structure schematic diagram that course sliding ring mechanism embodiment that is used for unmanned helicopter semi-differential course operating system provides.

Description of the reference numerals:

the device comprises an upper rotary wing mechanism 1, a lower rotary wing mechanism 2, a sliding ring mechanism body 3, an upper sliding ring 4, a lower sliding ring 5, a connecting ring 6, a support 7, a screw rod 8, a locking nut I9, a joint ball 10, a rotating block 11, a hexagonal hole 12, a pull rod 13, a ball core 14, a carburized layer 15, a nitriding layer 16, a stud 17, a locking nut II 18, a clamping surface 19 and a thread sleeve 20.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the attached drawings.

As shown in fig. 1-4, the embodiment of the utility model provides a pair of course sliding ring mechanism for unmanned helicopter semi-differential course operating system, including last rotor mechanism 1 and lower rotor mechanism 2, upward be provided with sliding ring mechanism body 3 between rotor mechanism 1 and the lower rotor mechanism 2, sliding ring mechanism body 3 includes sliding ring 4 and lower sliding ring 5, it has pull rod 13 to articulate between last sliding ring 4 and the lower sliding ring 5, the both ends of pull rod 13 are fixed with go-between 6, the equal integrated into one piece of the outer wall of going up sliding ring 4 and lower sliding ring 5 has support 7 that is central symmetric distribution, there is screw rod 8 inside of support 7 through threaded connection, the other end integrated into one piece of screw rod 8 has joint ball 10, go-between 6 cup joints the outside at joint ball 10.

Specifically, in the present embodiment, the upper rotor mechanism 1 and the lower rotor mechanism 2 are included, and are positions where an upper rotor and a lower rotor in a semi-differential course control system of a coaxial unmanned helicopter in the prior art are installed, the coaxial semi-differential course control system is in the prior art and is widely used in the unmanned helicopter, a slip ring mechanism body 3 is arranged between the upper rotor mechanism 1 and the lower rotor mechanism 2, the slip ring mechanism body 3 includes an upper slip ring 4 and a lower slip ring 5, a pull rod 13 is hinged between the upper slip ring 4 and the lower slip ring 5, the pull rod 13 plays a role of linking the upper slip ring 4 and the lower slip ring 5, the specific principle is in the prior art, two ends of the pull rod 13 are fixed with connecting rings 6, outer walls of the upper slip ring 4 and the lower slip ring 5 are both integrally formed with supports 7 which are in central symmetry, a screw 8 is connected inside the supports 7 through threads, a joint ball 10 is integrally formed at the other end of the screw 8, an inner wall of the connecting ring 6 has an annular spherical surface which is adapted to the joint ball 10, the connecting ring 6 is sleeved on the outside of the joint ball 10, so that the connecting ring 6 can move outside of the joint ball 10, and when the joint ball is directly hinged by the rod 13 in comparison with the prior art, the connecting ring is connected with a higher degree of freedom when the joint ball 13.

The utility model provides a pair of a course sliding ring mechanism for unmanned helicopter semi-differential course operating system, go up go-between 6 and joint ball 10 through setting up, utilize joint ball 10 to make pull rod 13 and last slip ring 4 and slip ring 5 articulate, when making go up slip ring 4 and slip ring 5 vibration, pull rod 13 can carry out self-adaptation regulation with the articulated direction of last slip ring 4 and slip ring 5, and then prevent that pull rod 13 from taking place to damage because of the unbalanced stress, the reason of going up slip ring 4 and 5 vibrations of slip ring is that last rotor mechanism 1 and lower rotor mechanism 2's level is rotated and is aroused, go up slip ring 4 and slip ring 5 vibrations separately also on the horizontal direction.

The utility model provides a in another embodiment, the both ends integrated into one piece of pull rod 13 has double-screw bolt 17, the bottom outer wall integrated into one piece of go-between 6 has swivel nut 20, double-screw bolt 17 passes through threaded connection with swivel nut 20, it is fixed with pull rod 13 that make go-between 6 pass through swivel nut 20, the outer wall of pull rod 13 is provided with clamping face 19, clamping face 19 is located the middle part of pull rod 13, be convenient for rotate pull rod 13 through clamping face 19, be convenient for rotate through the spanner when making pull rod 13 and swivel nut 20 carry out threaded connection.

The utility model provides a further embodiment, there is lock nut 9 screw rod 8's outside through threaded connection, there is lock nut two 18 screw bolt 17's outside through threaded connection, go-between 6 carries out threaded connection through swivel nut 20 and pull rod 13, and lock through lock nut two 18 with swivel nut 20 on screw bolt 17 and fix, make the distance between two go-between 6 adjust, and then make pull rod 13 be convenient for adjust the distance between two go-between 6 according to actual need when the installation.

The utility model provides a further embodiment, joint ball 10 includes ball core 14, and the outer wall of ball core 14 is provided with carburization layer 15, and the outer wall of carburization layer 15 is provided with nitriding layer 16, sets up in the outside of ball core 14 through nitriding layer 16 and carburization layer 15 for hardness and wear resistance of joint ball 10 obtain improving, when carrying out articulated motion between joint ball 10 and go-between 6, joint ball 10 is difficult because of taking place wearing and tearing.

The utility model provides a further embodiment, one side outer wall integrated into one piece of joint ball 10 has rotatory piece 11, and one side outer wall of rotatory piece 11 is provided with six arris holes 12, utilizes six arris holes 12 to be convenient for insert six arris spanners to the inside of rotatory piece 11 for more convenience when the screw rod 8 of joint ball 10 one side carries out threaded connection with support 7.

The working principle is as follows: when the distance between the connecting rings 6 at the two ends of the pull rod 13 needs to be adjusted, the connecting rings 6 are rotated, so that the distance between the two screw sleeves 20 is lengthened, then the connecting rings 6 and the pull rod 13 are kept fixed, and the locking nut II 18 is rotated, so that the locking nut II 18 and the screw sleeves 20 are fixed through pretightening force, further the distance between the connecting rings 6 at the two ends of the pull rod 13 can be adjusted, and further the pull rod 13 is convenient to adjust the distance between the two connecting rings 6 according to actual requirements when being installed; when the pull rod 13 is installed with the upper sliding ring 4 and the lower sliding ring 5, the connecting ring 6 is firstly sleeved on the joint ball 10, then the screw rod 8 on one side of the joint ball 10 is in threaded connection with the manufacturing, and the rotating block 11 is rotated in the hexagonal hole 12 through the insertion of the hexagonal wrench, so that the screw rod 8 is kept fixed after being connected in place with the manufacturing, then the locking nut 9 is rotated, the locking nut 9 is fixed with the support 7 through the pretightening force, and the pull rod 13 can be conveniently installed between the upper sliding ring 4 and the lower sliding ring 5.

Certain exemplary embodiments of the present invention have been described above by way of illustration only, and it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims

1. The utility model provides a course sliding ring mechanism for unmanned helicopter semi-differential course operating system which characterized in that, includes rotor mechanism (1) and lower rotor mechanism (2), it is provided with sliding ring mechanism body (3) to go up between rotor mechanism (1) and lower rotor mechanism (2), sliding ring mechanism body (3) include sliding ring (4) and gliding ring (5), it has pull rod (13) to hinge between sliding ring (4) and gliding ring (5), the both ends of pull rod (13) are fixed with go-between ring (6), the equal integrated into one piece of outer wall of going up sliding ring (4) and gliding ring (5) has support (7) that are central symmetry and distribute, there is screw rod (8) inside of support (7) through threaded connection, the other end integrated into one piece of screw rod (8) has joint ball (10), go-between ring (6) cup joint the outside at joint ball (10).

2. The heading slip ring mechanism for the semi-differential heading control system of the unmanned helicopter as claimed in claim 1, wherein the two ends of the pull rod (13) are integrally formed with studs (17), the outer wall of the bottom of the connecting ring (6) is integrally formed with a threaded sleeve (20), and the studs (17) and the threaded sleeve (20) are connected through threads.

3. The heading slip ring mechanism for a semi-differential heading control system of an unmanned helicopter as claimed in claim 1 wherein the outer wall of the drawbar (13) is provided with a clamping surface (19), the clamping surface (19) being located in the middle of the drawbar (13).

4. The heading slip ring mechanism for the semi-differential heading control system of the unmanned helicopter as claimed in claim 2, wherein the exterior of the screw (8) is threadedly connected with a first locking nut (9), and the exterior of the stud (17) is threadedly connected with a second locking nut (18).

5. The heading slip ring mechanism for the semi-differential heading control system of the unmanned helicopter as claimed in claim 1, characterized in that the joint ball (10) comprises a ball core (14), the outer wall of the ball core (14) is provided with a carburized layer (15), and the outer wall of the carburized layer (15) is provided with a nitrided layer (16).

6. The heading slip ring mechanism for the semi-differential heading control system of the unmanned helicopter as claimed in claim 1, wherein the outer wall of one side of the joint ball (10) is integrally formed with a rotating block (11), and the outer wall of one side of the rotating block (11) is provided with a hexagonal hole (12).