CN210592421U

CN210592421U - Unmanned helicopter rotor head structure

Info

Publication number: CN210592421U
Application number: CN201921570409.1U
Authority: CN
Inventors: 王江平
Original assignee: Zhuhai Ziyan Unmanned Aerial Vehicle Co ltd
Current assignee: Zhuhai Ziyan Unmanned Aerial Vehicle Co ltd
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2020-05-22
Anticipated expiration: 2029-09-20

Abstract

The utility model aims at providing a simple structure, use various, the dismouting is convenient and easy maintenance and exempt from the key installation and possess the unmanned helicopter rotor head structure who relaxs the effect. The utility model discloses a rotor head, main shaft, axle sleeve, retaining ring and retainer, the inside cavity of main shaft, the middle part of rotor head be provided with the through-hole of main shaft looks adaptation, the axle sleeve adaptation cover is established on the main shaft, the lower half of through-hole with axle sleeve looks adaptation, the upper end of main shaft is passed the through-hole and with retaining ring threaded connection, the retainer is fixed to be set up the middle part of rotor head and with the retaining ring cooperatees. The utility model discloses be applied to unmanned aerial vehicle's technical field.

Description

Unmanned helicopter rotor head structure

Technical Field

The utility model discloses be applied to unmanned aerial vehicle's technical field, in particular to unmanned helicopter rotor head structure.

Background

Unmanned aerial vehicle is as the key project of modern science and technology development, and technological development is more and more advanced along with the development of unmanned aerial vehicle technique, and it has embodied indispensable effect in aspects such as taking photo by plane, detection, dimension steady, investigation, rescue, plant protection, has all occupied extremely important position in civilian field or military field no matter. While unmanned helicopters have taken an important position in the unmanned aerial vehicle industry with their flexibility and maneuverability of use.

At present, unmanned helicopter's rotor head is mostly through the key, or the screw carries out run-through fixed connection with the main shaft, such connected mode makes whole cooperation solidification relatively, and some main shafts still adopt solid, consequently can't install laser radar above unmanned helicopter rotor head, equipment such as GPS, the diversified use of unmanned helicopter has been restricted, and the connection between key or screw and the main shaft is extremely unfavorable for the dismouting, easily cause the damage to the main shaft at the dismantlement in-process, reduce its life, there is the potential safety hazard.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome prior art not enough, provide a simple structure, use various, the dismouting is convenient and easy maintenance and exempt from the key installation and possess the unmanned helicopter rotor head structure of locking effect.

The utility model adopts the technical proposal that: the utility model discloses it includes rotor head, main shaft, axle sleeve, retaining ring and retainer, the inside cavity of main shaft, the middle part of rotor head be provided with the through-hole of main shaft looks adaptation, the axle sleeve adaptation cover is established on the main shaft, the lower half of through-hole with axle sleeve looks adaptation, the upper end of main shaft is passed the through-hole and with retaining ring threaded connection, the retainer is fixed to be set up the middle part of rotor head and with the retaining ring cooperatees.

Furthermore, the upper end of the main shaft is also provided with a clamping ring, and the clamping ring is matched with the shaft sleeve.

Further, the retainer is provided with a mounting hole and a plurality of arc-shaped holes, and the central axis of the mounting hole is overlapped with the central axis of the main shaft.

Furthermore, the rotor head is also provided with a threaded hole, the retainer is provided with an arc-shaped groove, and the threaded hole is matched with the arc-shaped groove.

Further, one side of the shaft sleeve is provided with a tensioning groove.

The utility model has the advantages that: including rotor head, main shaft, axle sleeve, retaining ring and retainer, the inside cavity of main shaft, the middle part of rotor head be provided with the through-hole of main shaft looks adaptation, the axle sleeve adaptation cover is established on the main shaft, the lower half of through-hole with axle sleeve looks adaptation, the upper end of main shaft is passed the through-hole and with retaining ring threaded connection, the retainer is fixed to be set up the middle part of rotor head and with the retaining ring cooperatees. Compared with the closest prior art, the utility model has the following advantages: the spindle is fixed by adopting the shaft sleeve, a stop ring and a retainer, the connection of a key and a pin shaft is avoided, the rigidity and the centering effect of the spindle are ensured, and the spindle is simple in structure, convenient to assemble and disassemble and convenient to maintain; the stop ring is in threaded connection with the main shaft and is additionally provided, so that the looseness is effectively prevented; the main shaft is hollow, can install laser radar and GPS, uses in a flexible way various.

Drawings

Fig. 1 is an exploded view of the present invention;

FIG. 2 is a top view and a partial enlarged view of the present invention;

FIG. 3 is a sectional view taken along line A-A and a partially enlarged view of the top view of the present invention;

fig. 4 is a schematic perspective view of the shaft sleeve of the present invention.

Detailed Description

As shown in fig. 1 to 4, the specific embodiment of the present invention is: the utility model discloses it includes rotor head 1, main shaft 2, axle sleeve 3, retainer 4 and

retainer

5, 2 inside cavitys of main shaft, the middle part of rotor head 1 be provided with the through-hole 6 of 2 looks adaptations of main shaft, 3 adaptation covers of axle sleeve are established on the main shaft 2, the lower half of through-hole 6 with 3 looks adaptations of axle sleeve, the upper end of main shaft 2 is passed through-hole 6 and with 4 threaded connection of retainer, retainer 5 is fixed to be set up the middle part of rotor head 1 and with retainer 4 cooperatees. The upper end of the main shaft 2 passes through the through hole 6 of the rotor head 1 and then is in threaded connection with the stop ring 4, the shaft sleeve 3 is arranged at the upper end of the main shaft 2 and is matched with the lower half part of the through hole 6, when the stop ring 4 is screwed, the rotor head 1 can be clamped because the shaft sleeve 4 plays a limiting role, the stop ring 4 is covered with the stop dog 5, a convex strip inside the stop dog 5 is matched and clamped with a groove on the outer ring of the stop dog 4, and the stop dog 5 is fixedly arranged on the rotor head 1, so when the main shaft 2 rotates, the rotor head 1 can also rotate.

In this embodiment, the upper end of the main shaft 2 is further provided with a snap ring 7, and the snap ring 7 is matched with the shaft sleeve 3. The snap ring 7 is fixedly arranged in a ring groove at the upper end of the main shaft and is positioned at the lower end of the shaft sleeve 3, and the snap ring 7 is arranged to prop against the shaft sleeve 3 to prevent the shaft sleeve 3 from moving downwards due to large stress.

In the present embodiment, the retainer 5 is provided with a mounting hole 8 and a plurality of arc-shaped holes 9, and the central axis of the mounting hole 8 coincides with the central axis of the main shaft 2. Set up the hollow structure of mounting hole 8 and main shaft 2 and cooperate to can install equipment such as laser radar, GPS, the wire hole can be regarded as to the arc hole 9 and use, makes things convenient for the line to connect.

In this embodiment, the rotor head 1 is further provided with a threaded hole 10, the retainer 5 is provided with an arc-shaped slot 11, and the threaded hole 10 is matched with the arc-shaped slot 11. Set up screw hole 10 and cooperate with arc wall 11, make the retainer fix on rotor head 1 through installing the screw additional, there is the benefit dismouting in the mode that adopts screwed connection, is convenient for change and maintain.

In this embodiment, one side of the bushing 3 is provided with a tension groove 12. The tensioning groove can make the shaft sleeve 3 have certain tensioning performance, and can adapt to more conditions.

While the embodiments of the present invention have been described in terms of practical embodiments, they are not intended to limit the scope of the invention, and modifications of the embodiments and combinations with other embodiments will be apparent to those skilled in the art in light of the present description.

Claims

1. Unmanned helicopter rotor head structure, its characterized in that: it includes rotor head (1), main shaft (2), axle sleeve (3), stop collar (4) and retainer (5), the inside cavity of main shaft (2), the middle part of rotor head (1) be provided with through-hole (6) of main shaft (2) looks adaptation, axle sleeve (3) adaptation cover is established on main shaft (2), the lower half of through-hole (6) with axle sleeve (3) looks adaptation, the upper end of main shaft (2) is passed through-hole (6) and with stop collar (4) threaded connection, retainer (5) are fixed to be set up the middle part of rotor head (1) and with stop collar (4) cooperate.

2. The unmanned helicopter rotor head structure of claim 1, characterized in that: the upper end of the main shaft (2) is further provided with a clamping ring (7), and the clamping ring (7) is matched with the shaft sleeve (3).

3. The unmanned helicopter rotor head structure of claim 1, characterized in that: the stopper (5) is provided with a mounting hole (8) and a plurality of arc-shaped holes (9), and the central axis of the mounting hole (8) is overlapped with the central axis of the main shaft (2).

4. The unmanned helicopter rotor head structure of claim 1, characterized in that: the rotor head (1) is further provided with a threaded hole (10), the retainer (5) is provided with an arc-shaped groove (11), and the threaded hole (10) is matched with the arc-shaped groove (11).

5. The unmanned helicopter rotor head structure of claim 1, characterized in that: one side of the shaft sleeve (3) is provided with a tensioning groove (12).