CN211082711U

CN211082711U - Integrated quick-release main shaft gearbox of unmanned helicopter

Info

Publication number: CN211082711U
Application number: CN201922228027.7U
Authority: CN
Inventors: 孟令恩; 王琳; 于进峰
Original assignee: Henan Kunyu Uav Technology Co ltd
Current assignee: Henan Kunyu UAV Technology Co.,Ltd.
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-07-24
Anticipated expiration: 2029-12-13

Abstract

Unmanned helicopter integral type quick detach main shaft gearbox, which comprises a housing, the casing includes bottom plate and the cover of fixed connection on the bottom plate, be provided with a plurality of installation feet with casing an organic whole in bottom plate lower part both sides, the bearing housing hole has all been seted up on casing top surface and the bottom surface, the outer lane tight fit of upper bearing and lower bearing sets up in corresponding bearing housing hole, driven gear is located between upper bearing and the lower bearing, the main shaft is followed the upper bearing, the lower bearing, pass in driven gear's the centre bore, it has the spline to process in driven gear's centre bore, it has the spline groove to process on the length of main shaft and driven gear cooperation part, the spline cooperatees with the spline groove, be provided with the shaft shoulder on the main shaft of spline upper end, the shaft shoulder is located the up end of driven gear's centre bore, the lower part processing of. This gearbox installation maintenance labour saving and time saving.

Description

Integrated quick-release main shaft gearbox of unmanned helicopter

Technical Field

The utility model relates to a case of becoming, in particular to unmanned helicopter integral type gearbox belongs to unmanned air vehicle technical field.

Background

Unmanned aerial vehicle has obtained extensive application and development in these fields in recent years, for example agricultural plant protection unmanned aerial vehicle is developing with unprecedented speed, uses the gearbox to export power in present unmanned helicopter, and the gearbox on the current unmanned aerial vehicle has following defect: firstly, the problem of installation is solved, the existing gearbox is installed on a gearbox installation bottom plate of an unmanned aerial vehicle, the installation bottom plate is fixedly connected to a rack, and the gearbox and the rack are connected through the installation bottom plate, so that the complexity of system installation is increased undoubtedly, the weight of the unmanned aerial vehicle is increased, the lightweight of the agricultural plant protection unmanned helicopter is one direction for improving the efficiency of the unmanned aerial vehicle, and obviously, the mode does not meet the requirement of lightweight; secondly, the gearbox structure is complicated, because the main shaft atress, the wearing and tearing of during operation, the main shaft on the unmanned helicopter is more damaged easily, and agricultural plant protection unmanned aerial vehicle crash incident takes place occasionally in addition, and the main shaft basically all need be changed after the crash, and whole gearbox need be dismantled if change the main shaft to present gearbox, and work load is big, and is inconvenient, but also involves the equilibrium problem of installing again after the unmanned aerial vehicle gearbox is dismantled, so change the main shaft and waste time and energy.

Disclosure of Invention

An object of the utility model is to overcome the above-mentioned problem that exists among the present unmanned helicopter, provide an unmanned helicopter integral type quick detach gearbox.

In order to realize the purpose of the utility model, the following technical proposal is adopted: an integrated quick-release main shaft gearbox of an unmanned helicopter comprises a casing, wherein the casing comprises a bottom plate and a cover fixedly connected to the bottom plate, a plurality of mounting feet are integrally arranged on two sides of the lower part of the bottom plate and the casing, connecting holes for fixing the mounting feet with a frame are processed on the side surfaces of the mounting feet, bearing seat holes are respectively formed in the top surface and the bottom surface of the casing, outer rings of an upper bearing and a lower bearing are arranged in the corresponding bearing seat holes in a tight fit manner, a driven gear is positioned between the upper bearing and the lower bearing, a main shaft penetrates through central holes of the upper bearing, the lower bearing and the driven gear, the main shaft, the upper bearing and an inner ring of the lower bearing are in a tight fit manner, a spline is processed in a central hole of the driven gear, a spline groove is processed on the length of the matching part of the main shaft and the driven gear, the spline is matched with the spline groove, the lower part of the main shaft is provided with threads, and the threads are screwed with a locking nut.

Further, the method comprises the following steps of; the upper bearing and the lower bearing are both deep groove ball bearings.

Further, the method comprises the following steps of; the lower part of the main shaft is provided with a plurality of radial pin holes, a plurality of groups of radial pin grooves are arranged on the lower end surface of the nut, and anti-loosening pins are inserted in the pin holes and the pin grooves.

The utility model discloses an actively beneficial technological effect lies in: this gearbox direct mount has saved original mounting plate in the frame, makes the more lightweight that entire system becomes, and this main shaft is easily dismantled, and the dismantlement installation need not unpack apart whole speed reducer, installation maintenance labour saving and time saving.

Drawings

Fig. 1 is an overall view of the housing taken in section.

Fig. 2 is a schematic diagram of component sorting.

Fig. 3 is a schematic view of the spindle.

Detailed Description

In order to explain the utility model more fully, the utility model provides an implementation example. These examples are merely illustrative of the present invention and do not limit the scope of the present invention.

The invention is explained in further detail with reference to the drawings, in which the reference symbols are: 1: a base plate; 2: mounting a foot; 3: connecting holes; 4: a main shaft; 5: an upper bearing; 6: a lower bearing; 7: a driven gear; 8: locking the nut; 9: a pin slot; 10: an input shaft; 11, a driving wheel; 12: a machine cover; 13: a spline groove; 14: an anti-loosening pin; 15: a pin hole; 16: and a shaft shoulder.

As shown in the attached drawing, the integrated quick-release gearbox of the unmanned helicopter comprises a casing, wherein the casing comprises a bottom plate 1 and a cover 12 fixedly connected to the bottom plate, an input shaft is arranged on the casing in a rotating mode and is parallel to a main shaft, a driving wheel 11 is fixedly connected to the input shaft, a plurality of mounting feet are integrally arranged on two sides of the lower portion of the bottom plate and the casing, the mounting feet are shown as 2, the mounting feet and the bottom plate on the gearbox replace the original mounting bottom plate on the helicopter, connecting holes 3 used for fixing the mounting feet with a rack are formed in the side faces of the mounting feet, bearing seat holes are formed in the top face and the bottom face of the casing, outer rings of an upper bearing 5 and a lower bearing 6 are arranged in corresponding bearing seat holes in a tight fit mode, the upper bearing and the lower bearing are deep groove ball bearings, a driven gear 7 is located between the upper bearing and the lower bearing, The lower bearing and the driven gear penetrate through central holes, the main shaft, the upper bearing and the lower bearing inner ring are in tight fit, a spline is machined in the central hole of the driven gear, the spline of the driven gear is not shown in the drawing, a spline groove 13 is machined in the length of the part, matched with the spline groove 3, of the main shaft, a shaft shoulder 16 is arranged on the main shaft at the upper end of the spline and is located on the upper end face of the central hole of the driven gear, threads are machined on the lower portion of the main shaft, a locking nut 8 is screwed on the threads, a plurality of radial pin holes 15 are formed in the lower portion of the main shaft, a plurality of groups of radial pin grooves 9 begin to be formed in the lower end face of the nut, and anti-loosening pins 14 are inserted in the pin holes.

When this gearbox is installed as a whole, through connecting hole fixed connection to the helicopter frame can, the shape and the size of installation foot can refer to the shape size preparation of present mounting plate to and the frame between the cooperation, can be provided with the slot hole with connecting hole complex bolt hole in the frame, be convenient for like this adjust the gearbox.

When the main shaft is disassembled, the anti-loosening pin is removed, the locking nut is disassembled from the end part of the main shaft, the main shaft can be pulled out from the upper part of the gearbox, and when the main shaft is assembled, the main shaft can be inserted from the upper part of the gearbox.

After the embodiments of the present invention have been described in detail, those skilled in the art can clearly understand that various changes and modifications can be made without departing from the scope and spirit of the above claims, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention all fall within the scope of the technical solution of the present invention, and the present invention is not limited to the embodiments of the examples given in the specification.

Claims

1. Unmanned helicopter integral type quick detach main shaft gearbox, including the casing, the casing includes bottom plate and the cover of fixed connection on the bottom plate, its characterized in that: the upper bearing and the lower bearing are tightly matched with the inner rings of the upper bearing and the lower bearing, a spline is machined in the central hole of the driven gear, the spline is matched with the spline on the length of the matching part of the main shaft and the driven gear, a shaft shoulder is arranged on the main shaft at the upper end of the spline, the shaft shoulder is positioned on the upper end face of the central hole of the driven gear, a thread is machined on the lower part of the main shaft, and a locking nut is screwed on the thread.

2. The unmanned helicopter integral type quick detach main shaft gearbox of claim 1 characterized in that: the upper bearing and the lower bearing are both deep groove ball bearings.

3. The unmanned helicopter integral type quick detach main shaft gearbox of claim 1 characterized in that: the lower part of the main shaft is provided with a plurality of radial pin holes, a plurality of groups of radial pin grooves are arranged on the lower end surface of the nut, and anti-loosening pins are inserted in the pin holes and the pin grooves.