CN207000823U

CN207000823U - A kind of tilt table device

Info

Publication number: CN207000823U
Application number: CN201720522506.8U
Authority: CN
Inventors: 郑锋; 吴立; 苏正
Original assignee: Shanghai Yin Wing Technology Co Ltd
Current assignee: Shanghai Yin Wing Technology Co Ltd
Priority date: 2017-05-12
Filing date: 2017-05-12
Publication date: 2018-02-13
Anticipated expiration: 2027-05-12

Abstract

The utility model provides a kind of tilt table device, belongs to vehicle technology field.Including at least relatively turnable upper pitch and lower pitch, it is characterised in that the upper pitch holds interconnection with lower pitch warp beam, and the oil filler point for being communicated to the bearing is provided with the lower pitch.A kind of tilt table device provided by the utility model adds fuel filler neck design, and by setting oil filler point in lower pitch, oil filler point is communicated at bearing, is easy to the maintenance of pitch in use in the future.

Description

A kind of tilt table device

Technical field

Vehicle technology field is the utility model is related to, more particularly to a kind of tilt table device.

Background technology

Advance, retrogressing, the left and right inclination of rotary aircraft are controlled by pitch, and servomechanism, which promotes, to be tilted Lower wall, the upper disk of inclination is caused to tilt together, then the connecting rod tilted by connection on upper disk transmits the force to rotor and produces rotor Periodic angle of attack variation, and reach the purpose of control.

Current pitch is provided with pitch and lower pitch, and universal bearing, pitch are installed in upper pitch part Hypsokinesis of leaning forward, left-leaning Right deviation by gimbal suspension bearing complete.After blade rotates, upper pitch follows lifting airscrew Main shaft rotates together.The Jing Quan of lower pitch and upper pitch separate.After helicopter starts, the bearing in pitch is also together Rotate.So bearing has conclusive influence for flight safety, the loss of engine output.Existing pitch Bearing can just accomplish to safeguard only when installation or overhaul, influence the life-span of pitch, influence the life-span of aircraft, And existing design is a bearing, when pitch is acting, the non-perpendicular state of lifting airscrew main shaft, bearing rapid wear It is bad.

The now power of the power, also radial direction that are more than axial direction that bearing is subject to.Two power superpositions, form torsion, easy damaged Bearing, directly reduce the reliability of helicopter.

Utility model content

For above-mentioned technical problem, utility model people is had found when pitch is acting, and lifting airscrew main shaft is non-to hang down The power of straight state, the now power, also radial direction that are more than axial direction that bearing is subject to.Two power superpositions, form torsion, easy damaged axle Hold, directly reduce the reliability of helicopter.

Therefore, the utility model provides a kind of tilt table device, facilitates the maintaining of pitch, reduces the dynamic of pitch Power is lost, and adds the bearing of different-diameter, for bearing torsion, improves the reliability of aircraft, extend the longevity of pitch The life-span of life and aircraft.

The utility model provides a kind of tilt table device, including at least relatively turnable upper pitch and lower inclination Disk, the upper pitch hold interconnection with lower pitch warp beam, are provided with the lower pitch and are communicated to the bearing Oil filler point, the bearing include gimbal suspension bearing, clutch shaft bearing and second bearing, and the clutch shaft bearing and second bearing are same The bearing for the different-diameter that axle is set.

Further, the moving-coil rotated with the gimbal suspension bearing is provided with the upper pitch.

Further, the clutch shaft bearing and second bearing are ball bearing.

Further, the lower pitch is arranged with Jing Quan, and the oil filler point is communicated to the bearing through the Jing Quan Place.

Further, the bearing is provided with oil seal sealing ring.

Further, the oil seal sealing ring includes upper oil seal sealing ring and lower oil seal sealing ring.

Further, the upper pitch and the lower concentric setting of pitch.

A kind of tilt table device provided by the utility model, the bearing of different-diameter is added, for bearing torsion, improved The reliability of aircraft, extends the life-span of pitch and the life-span of aircraft.

A kind of tilt table device provided by the utility model, fuel filler neck design is added, is noted by being set in lower pitch Oilhole, oil filler point are communicated at bearing, are easy to the maintenance of pitch in use in the future.

Brief description of the drawings

It is described in detail by way of example, and not by way of limitation with reference to the accompanying drawings hereinafter more of the present utility model specific real Apply example.Identical reference denotes same or similar part or part in accompanying drawing.It should be appreciated by those skilled in the art that What these accompanying drawings were not necessarily drawn to scale.In accompanying drawing：

Fig. 1 is the structural representation according to the tilt table device of the utility model one embodiment；

Fig. 2 is a kind of configuration schematic diagram of tilt table device shown in Fig. 1.

Embodiment

Fig. 1 is the structural representation according to a kind of tilt table device of the utility model one embodiment.Fig. 2 is Fig. 1 institutes A kind of configuration schematic diagram of the tilt table device shown.Referring to Fig. 1 and Fig. 2, a kind of tilt table device of the present utility model, bag Relatively turnable upper pitch 8 and lower pitch 9 are included, upper pitch 8 interconnects with lower pitch 9 through bearing, under described The oil filler point 5 for being communicated to the bearing is provided with pitch 9.The upper pitch 8 and lower 9 concentric setting of pitch

Specifically, in a specific embodiment, the bearing between upper pitch 8 and lower pitch 9 is universal pass Bearings 2, pitch lean forward hypsokinesis or left-leaning Right deviation relies on gimbal suspension bearing 2 and completed.Alternatively, the universal pass The first ball bearing 3 and the second ball bearing 4 are provided between bearings 2 and the lower pitch 9.The He of first ball bearing 3 Second ball bearing 4 can be the different bearing of radius.

Further, the moving-coil 1 rotated with the gimbal suspension bearing 2 is provided with the upper pitch 8.It is described to have a down dip Swash plate 8 is arranged with quiet circle 7, and the oil filler point 5 is communicated at the bearing through the quiet circle 7.The bearing is provided with oil sealing Sealing ring.Oil seal sealing ring includes upper oil seal sealing ring (not shown) and lower oil seal sealing ring 6.

After blade rotates, upper pitch 8 follows lifting airscrew main shaft to rotate together.Following quiet circle 7 relies on Bearing, separated with moving-coil.After helicopter starts, the bearing in pitch also rotates together.So bearing is for flight safety, The loss of engine output has conclusive influence.

In actual use, when pitch is acting, the non-perpendicular state of lifting airscrew main shaft.Now bearing by Be more than axial direction power, also radial direction power.Two power superpositions, the torsion of formation is by the first ball bearing 3 and the second ball Bearing 4 is undertaken respectively so that bearing is hardly damaged, and improves the safety and reliability of aircraft.

In actual use, pitch of the present utility model adds fuel filler neck design, facilitates the dimension in use in the future Shield.Fuel filler neck connects oil pocket, in maintenance process, one side oiling one side rotary wing head.Make oil lubrication uniform, the shape in bearing Into uniform oil film.Respectively there is oil sealing up and down.Avoid throwing away for lubricating oil.

A kind of tilt table device provided by the utility model adds fuel filler neck design, by setting oiling in lower pitch Hole, oil filler point are communicated at bearing, are easy to the maintenance of pitch in use in the future.

So far, although those skilled in the art will appreciate that detailed herein have shown and described of the present utility model show Example property embodiment, still, still can be according to disclosed in the utility model in the case where not departing from the spirit and scope of the utility model Content directly determines or derived many other variations or modifications for meeting the utility model principle.Therefore, it is of the present utility model Scope is understood that and regarded as to cover other all these variations or modifications.

Claims

A kind of 1. tilt table device, including at least relatively turnable upper pitch and lower pitch, it is characterised in that on described Pitch holds interconnection with lower pitch warp beam, and the oil filler point for being communicated to the bearing, institute are provided with the lower pitch Stating bearing includes gimbal suspension bearing, clutch shaft bearing and second bearing, and the clutch shaft bearing and second bearing are coaxially disposed The bearing of different-diameter.
2. tilt table device according to claim 1, it is characterised in that be provided with the upper pitch with described universal The moving-coil that oscillating bearing rotates.
3. tilt table device according to claim 2, it is characterised in that the clutch shaft bearing and second bearing are ball axle Hold.
4. according to the tilt table device any one of claim 1-3, it is characterised in that the lower pitch is arranged with quiet Circle, the oil filler point are communicated at the bearing through the Jing Quan.
5. tilt table device according to claim 4, it is characterised in that the bearing is provided with oil seal sealing ring.
6. tilt table device according to claim 5, it is characterised in that the oil seal sealing ring includes upper oil seal sealing ring With lower oil seal sealing ring.
7. tilt table device according to claim 1, it is characterised in that the upper pitch with lower pitch is concentric sets Put.