CN212373652U

CN212373652U - Improved tilting disk

Info

Publication number: CN212373652U
Application number: CN202020542387.4U
Authority: CN
Inventors: 时荔蕙; 王春龙; 贾永军; 郝博雅; 宁京宣; 薛明晰; 王常青; 霍亚东; 刘杨舜
Original assignee: 32180 Troops Of People's Liberation Army Of China
Current assignee: 32180 Troops Of People's Liberation Army Of China
Priority date: 2020-04-14
Filing date: 2020-04-14
Publication date: 2021-01-19
Anticipated expiration: 2030-04-14

Abstract

An improved tilting disk comprises a ball bearing, a rotating assembly and a non-rotating assembly, wherein the non-rotating assembly comprises a non-rotating body, a joint bearing and a second anti-twisting assembly, an annular groove is formed in the upper surface of the non-rotating body, and the inner circumferential surface of the annular groove is connected with the outer ring of the ball bearing; the outer peripheral surface of the non-rotating body is hinged with a second anti-twisting component, and the inner peripheral surface of the non-rotating body is connected with the outer ring of the joint bearing; the rotating assembly comprises a rotating body, a pull rod and a first anti-twisting assembly, and an outer ring of the rotating body is connected with an inner ring of the ball bearing; the lower end of the first anti-twist component is hinged in a corresponding groove on the inner periphery of the rotating body; the lower end of the pull rod is connected in the pull rod mounting groove on the inner periphery of the rotating body through a hinge. The beneficial effects are that: one side of the non-rotating body groove inner ring is connected with the ball bearing outer ring, so that the radial size of the device is reduced; the inner surface of the outer annular body extending from the inner part of the non-rotating body is connected with the outer ring of the joint bearing, so that the structure is simplified, the volume and the weight are reduced, and the air resistance is reduced.

Description

Improved tilting disk

Technical Field

The utility model relates to a rotor control structure specifically is a tilting tray.

Background

Modern aircraft, such as helicopters with single shaft or coaxial contra-rotors or tail rotor blades or propellers, have a swashplate arrangement at the main rotor (or coaxial contra-rotor main rotor). The swashplate arrangement includes a fixed swashplate and a rotating swashplate for use together, with the rotating swashplate rotating about a single axis of rotation with the main rotor. The tilting disk can move up and down and tilt to allow each blade to freely change angles.

The control pull rod is required to be connected with the rotating tilting disk, so that the diameter of the tilting disk is large, and the weight of the tilting disk is heavy; in addition, the tilting disk is installed at a high point of the machine body, and the large-diameter tilting disk brings great resistance to the whole machine body.

Disclosure of Invention

The utility model provides a modified tilting tray to solve the above-mentioned problem that prior art exists.

The technical scheme of the utility model is that: an improved tilting disk comprises a rotating component and a non-rotating component which are respectively arranged on the inner periphery and the outer periphery of a ball bearing, and is characterized in that the non-rotating component comprises a non-rotating body, a joint bearing and a second anti-torsion component, wherein an annular groove is arranged on the non-rotating body, and the inner peripheral surface of the annular groove is connected with the outer ring of the ball bearing; the outer peripheral surface of the non-rotating body is hinged with a second anti-twisting component, and the inner peripheral surface of the non-rotating body is connected with the outer ring of the joint bearing; the rotating assembly comprises a rotating body, a pull rod and a first anti-twisting assembly, and the outer ring of the rotating body is connected with the inner ring of the ball bearing; the lower ends of the two first anti-twist components are hinged in two corresponding grooves arranged on a diameter line on the inner periphery of the rotating body; four pull rod mounting grooves are uniformly distributed on the inner periphery of the rotating body, and the lower ends of the pull rods are connected in the pull rod mounting grooves through hinge pieces.

The utility model has the advantages that: one side of the non-rotating body groove inner ring is connected with the ball bearing outer ring, so that the radial size of the device is reduced; the inner surface of the outer annular body extending from the inner part of the non-rotating body is connected with the outer ring of the joint bearing, so that the structure is simplified, the volume and the weight are reduced, and the air resistance is reduced.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a perspective view of a radial cross section of one side of FIG. 1;

FIG. 3 is a schematic perspective view of the connection between the tension rod and the plate member in FIG. 1;

FIG. 4 is an enlarged view of a portion of FIG. 3;

FIG. 5 is a sectional view A-A of FIG. 4;

fig. 6 is a sectional view taken along line B-B in fig. 4.

Description of reference numerals: 1. a non-rotating body; 2. a rotating body; 3. a pull rod; 4. a first anti-twist component; 5. a knuckle bearing; 6. a second anti-twist component; 7. a ball bearing; 8. a plate member; 9. positioning pins; 10. a force-bearing connecting pin; 11. a panel fastener; 12. a rod end bearing; 13. an annular groove (of non-rotating body); 14. a plate positioning hole; 15. the rotator locating hole.

Detailed Description

As shown in fig. 1-6, the present invention relates to an improved tilting disk, which comprises a rotating component and a non-rotating component respectively installed on the inner periphery and the outer periphery of a ball bearing 7, and is characterized in that:

the non-rotating assembly comprises a non-rotating body 1, a joint bearing 5 and a second anti-twisting assembly 6, wherein an annular groove 13 is formed in one side of the non-rotating body 1, and the inner circumferential surface of the annular groove 13 is connected with the outer ring of the ball bearing 7; a second anti-twist component 6 is hinged on the outer circumferential surface of the non-rotating body 1, and the inner circumferential surface of the non-rotating body 1 is connected with the outer ring of the joint bearing 5;

the rotating assembly comprises a rotating body 2, a pull rod 3, a first anti-torsion assembly 4, a plate 8, a positioning pin 9, a force bearing connecting pin 10, a plate fastener 11 and a rod end bearing 12, wherein the outer ring of the rotating body 2 is connected with the inner ring of the ball bearing 7; the lower ends of the two first anti-twist components 4 are hinged in two corresponding grooves arranged on a diameter line on the inner periphery of the rotating body 2; four pull rod mounting grooves are uniformly distributed on the inner periphery of the rotating body 2, and the plate 8 is fixed on the inner peripheral surface of the rotating body 2 at the inner peripheral end of each pull rod mounting groove through a plate fastener 11; a force bearing connecting pin 10 is connected between the middle part of the plate 8 and the bottom end of the pull rod mounting groove, and a rod end bearing 12 is sleeved on the force bearing connecting pin 10; the lower end of the pull rod 3 is connected with the outer ring of the rod end bearing 12; two plate positioning holes which are symmetrical by taking the force bearing connecting pin 10 as a point and are positioned on the same circumferential line are arranged at two ends of the plate 8, a rotator positioning hole 15 corresponding to the plate positioning hole 14 is arranged on the inner circumferential surface of the rotator 2, and positioning pins 9 are arranged in the plate positioning hole 14 and the rotator positioning hole 15.

The plate fasteners 11 are four screws, which pass through fixing holes formed at four corners of the plate 8 and are connected to corresponding screw holes formed in the inner circumferential surface of the rotating body 2.

When the utility model is used, the non-rotating component is connected with the helicopter fixed component (such as a reduction box body) through the second anti-twist component 6, and the inner ring of the joint bearing 5 is connected with the helicopter fixed shaft (such as a tower shaft); the rotating component is connected with a rotating part (main shaft) in the helicopter through a first torsion-proof component 4. When the helicopter works: the non-rotating assembly is fixedly connected to the fixed component, the inner ring of the joint bearing 5 can move up and down, and the outer ring of the joint bearing 5 can deflect; the rotating assembly rotates with the rotating member (spindle) while moving up and down and deflecting with the non-rotating assembly.

Claims

1. An improved tilting disk comprising a rotating component and a non-rotating component mounted on the inner and outer peripheries of a ball bearing, respectively, characterized in that,

the non-rotating assembly comprises a non-rotating body, a joint bearing and a second anti-twisting assembly, wherein an annular groove is formed in one side of the non-rotating body, and the inner circumferential surface of the annular groove is connected with the outer ring of the ball bearing; the outer peripheral surface of the non-rotating body is hinged with a second anti-twisting component, and the inner peripheral surface of the non-rotating body is connected with the outer ring of the joint bearing;

the rotating assembly comprises a rotating body, a pull rod and a first anti-twisting assembly, and the outer ring of the rotating body is connected with the inner ring of the ball bearing; the lower ends of the two first anti-twist components are hinged in two corresponding grooves arranged on a diameter line on the inner periphery of the rotating body; four pull rod mounting grooves are uniformly distributed on the inner periphery of the rotating body, and the lower ends of the pull rods are connected in the pull rod mounting grooves through hinge pieces.

2. The improved swashplate of claim 1, wherein the hinge member comprises a plate member, a positioning pin, an anchor pin, a plate member fastener, and a rod end bearing, the plate member being secured to the inner peripheral surface of the rotating body by the plate member fastener at the inner peripheral end of the tie rod mounting groove; a bearing connecting pin is connected between the middle part of the plate and the bottom end of the pull rod mounting groove, and a rod end bearing is sleeved on the bearing connecting pin; the lower end of the pull rod is connected with the outer ring of the rod end bearing; two plate positioning holes which are symmetrical by taking the force bearing connecting pin as a symmetrical point and are positioned on the same circumferential line are arranged at two ends of the plate, rotating body positioning holes corresponding to the plate positioning holes are arranged on the inner circumferential surface of the rotating body, and positioning pins are arranged in the plate positioning holes and the rotating body positioning holes.

3. The improved tilting disk according to claim 2, wherein said plate fastening means are four screws passing through fixing holes provided at four corners of the plate and connected to corresponding screw holes of the inner circumferential surface of the rotating body, respectively.