CN112762106A

CN112762106A - Self-adaptive coupling

Info

Publication number: CN112762106A
Application number: CN202011400107.7A
Authority: CN
Inventors: 陈富宽; 徐丹; 王家学; 王鑫; 陈光辉; 刘儒林
Original assignee: AVIC Chengdu Aircraft Design and Research Institute
Current assignee: AVIC Chengdu Aircraft Design and Research Institute
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-05-07

Abstract

The invention belongs to the technical field of aviation couplers and discloses a self-adaptive coupler which comprises an adapter, a rubber pad, a driving disc and an adapter flange, wherein one end of the adapter is a clamping structure of a generator spline, the other end of the adapter is in contact with the driving disc through the rubber pad and is mutually fixed with the driving disc in the rotating direction, the driving disc is fixedly connected with one side of the adapter flange, and the other side of the adapter flange is a joint structure matched with an engine mounting end. The problem of the wearing and tearing of shaft coupling spline and generator spline is solved, the life of shaft coupling has not only been improved, has still improved the life of generator to the maintenance work of aircraft has been reduced, the attendance of aircraft has been improved greatly.

Description

Self-adaptive coupling

Technical Field

The invention belongs to the technical field of aviation couplers, relates to a coupler, and particularly relates to a self-adaptive coupler.

Background

Aviation piston engine is widely used in various types of small aircraft, especially unmanned aerial vehicle. While the ROTAX912/914 series aviation piston engine is a typical representative engine, the engine from Austria has quite wide application in international and domestic aircrafts. In recent years, many engine manufacturers in China even take the engine manufacturers as templates to develop similar domestic aviation piston engines, and the engines have more applications.

However, the power of the generator matched with the engine is very limited, and with the gradual enhancement of the functions and the continuous improvement of the intelligent degree of the unmanned aerial vehicle, the limited power of the generator can not meet the development requirements of the corresponding airplane, and an external generator must be configured on the corresponding airplane. On many domestic airplanes using the engine in the form, the connection between the engine and the generator generally adopts a coupling mode, although the coupling mode is various, the problem of abrasion between the spline of the coupling and the spline of the generator generally exists, the service life of the coupling is generally short, and the service life of the generator is also reduced. These problems add a lot of burden to the maintenance work of the aircraft, seriously affecting the attendance of the series of aircraft and also increasing the use costs of the aircraft.

Disclosure of Invention

In order to solve the problems, the invention provides an adaptive coupler which is long in service life, easy to replace and maintain due to easily damaged parts, and difficult to wear splines of the coupler and a generator.

The technical scheme of the invention is as follows:

the utility model provides a self-adaptation shaft coupling, includes adapter, rubber pad, driving-disc and adaptor flange, and adapter one end is the clamping structure of generator spline, and the adapter other end passes through the rubber pad and contacts and the driving-disc reciprocal anchorage with the driving-disc in the direction of rotation, one side fixed connection of driving-disc and adaptor flange, and adaptor flange's opposite side is the joint design of cooperation engine installation end.

Furthermore, the part of the adapter connected with the driving disk is two adapter bosses which are symmetrically arranged.

Further, the part of the driving disk contacting the adapter joint is two symmetrically arranged driving disk bosses.

Furthermore, the length of the adapter boss is the same as that of the drive plate boss, and the thickness of the rubber pad is matched with the length of the boss.

Furthermore, grooves are symmetrically formed in the upper side, the lower side, the left side and the right side of the rubber pad, wherein the grooves in the upper side and the lower side of the rubber pad are matched with the appearance of the boss of the driving disc, and the grooves in the left side and the right side of the rubber pad are matched with the appearance of the boss of the adapter.

Furthermore, a through hole is arranged in the middle of the rubber pad.

Furthermore, the appearance of the adapter boss is the same as that of the drive disk boss.

Furthermore, the driving disk is circular, 6 screw holes are uniformly formed in the outer ring of the driving disk, the same 6 screw holes are also formed in the side, connected with the driving disk, of the adapter flange, the 6 screw holes of the driving disk and the 6 screw holes of the adapter flange are overlapped, and the driving disk and the adapter flange are fixedly connected through the 6 screws.

The invention has the beneficial effects that:

1. the self-adaptive coupler solves the problem of abrasion of the coupler spline and the generator spline;

2. the self-adaptive coupler not only prolongs the service life of the coupler, but also prolongs the service life of the generator;

3. the self-adaptive coupling reduces the maintenance work of the airplane and greatly improves the attendance rate of the airplane;

4. the self-adaptive coupler also reduces the cost of the airplane, and the maintenance of the coupler can be completed only by regularly replacing the rubber pad.

Drawings

FIG. 1 is a block diagram of the connection of an adaptive coupling to an engine and generator according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the connection between the adapter of the adaptive coupling and the generator according to the embodiment of the present invention;

FIG. 3 is a schematic view of a transition flange according to an embodiment of the present invention coupled to an engine;

FIG. 4 is a schematic view of the connection of the drive disk to the adaptor flange according to an embodiment of the present invention;

the automobile engine comprises 1-adapter, 2-rubber pad, 3-driving disc, 4-adapter flange, 5-generator, 6-engine, 7-screw HB1-201M8 18_ HBO-9-C, 8-gasket HB1-521FA8 14 x 1, 9-screw HB1-201F-8 x 16 and 10-spring gasket GB859-6-65 Mn.

Detailed Description

This section is an example of the present invention and is provided to explain and illustrate the technical solutions of the present invention.

The utility model provides a self-adaptation shaft coupling, includes adapter 1, rubber pad 2, driving-disc 3 and

adapter flange

4, and 1 one end of adapter is the clamping structure of generator spline, and the 1 other end of adapter passes through rubber pad 2 and contacts and on the direction of rotation with driving-disc 3 reciprocal anchorage, one side fixed connection of driving-disc 3 and adapter flange 4, and adapter flange 4's opposite side is the joint design of cooperation engine installation end.

The part of the adapter 1 connected with the driving disk 3 is two adapter bosses which are symmetrically arranged.

The part of the drive plate 3 contacting the adapter 1 is two drive plate bosses symmetrically arranged.

The adapter boss is the same with the length of driving-disc boss, and the thickness of rubber pad 2 matches with the length of boss.

The upper side, the lower side, the left side and the right side of the rubber pad 2 are symmetrically provided with grooves, wherein the grooves on the upper side and the lower side of the rubber pad 2 are matched with the appearance of the boss of the driving disc, and the grooves on the left side and the right side of the rubber pad 2 are matched with the appearance of the boss of the adapter.

The middle of the rubber pad 2 is provided with a through hole.

The appearance of adapter boss is the same with the appearance of driving-disc boss.

The driving-disc 3 is circular, evenly is equipped with 6 screws on the outer ring of driving-disc 3, and one side that adapter flange 4 and driving-disc 3 are connected also is equipped with the same 6 screws, and the respective 6 screws of driving-disc 3 and adapter flange 4 overlap mutually, uses 6 screws to be connected driving-disc 3 and adapter flange 4 fixed connection.

Another embodiment of the present invention is described below with reference to the drawings.

The self-adaptive coupling of the invention consists of the following parts: the adapter 1, the rubber pad 2, the drive disc 3, the adapter flange 4, and the mounting screws and washers, etc. are shown in fig. 1.

The adapter comprises two parts, namely an adapter A and an adapter B, is matched with a spline on the input shaft of the generator (the matching part is self-made with a spline) and is connected with the spline, and is fixed by a screw and a gasket, as shown in figure 2.

The adapter flange is connected to the engine by means of screws and spring washers, as shown in fig. 3.

The drive plate is connected to the adapter flange by means of screws and spring washers, as shown in fig. 4.

The mechanical energy output by the engine drives the driving disk to rotate, and then the rubber pad drives the rotating adapter to rotate the input shaft of the generator to do work and generate power. Enough radial and axial clearance is reserved between the driving disc and the adapter and the rubber pad, so that the generator and the engine can be completely adapted to relative displacement in the running process, and the spline of the generator is protected.

The coupler solves the problem of abrasion of the coupler spline and the generator spline, greatly prolongs the service life of the coupler and the service life of the generator, reduces the maintenance work of an airplane, greatly improves the attendance rate of the airplane and reduces the cost.

The self-adaptive coupler disclosed by the invention has been successfully applied to a certain series of unmanned aerial vehicles, the existing test flight data show that the splines of the coupler and the splines of the motor are intact, the service life of the coupler exceeds 100 hours, the maintenance work of the aircraft is simple, and compared with the couplers in the prior form, the cost is greatly reduced.

Claims

1. The utility model provides a self-adaptation shaft coupling, a serial communication port, including adapter (1), rubber pad (2), driving-disc (3) and adaptor flange (4), adapter (1) one end is the clamping structure of generator spline, adapter (1) other end passes through rubber pad (2) and driving-disc (3) contact and on the direction of rotation with driving-disc (3) reciprocal anchorage, one side fixed connection of driving-disc (3) and adaptor flange (4), the joint design of the opposite side of adaptor flange (4) for cooperation engine installation end.

2. An adaptive coupling according to claim 1, characterized in that the part of the adapter (1) connected to the drive plate (3) is two adapter bosses arranged symmetrically.

3. An adaptive coupling according to claim 2, characterized in that the parts of the drive discs (3) contacting the adapter (1) are two symmetrically arranged drive disc bosses.

4. An adaptive coupling according to claim 3, characterized in that the adapter boss and the drive plate boss are the same in length, and the rubber pad (2) is of a thickness matching the length of the bosses.

5. The self-adaptive coupling according to claim 4, wherein the rubber pad (2) is symmetrically provided with grooves in four directions, namely, the upper direction, the lower direction, the left direction and the right direction, wherein the grooves in the upper side and the lower side of the rubber pad (2) are matched with the appearance of the boss of the driving disc, and the grooves in the left side and the right side of the rubber pad (2) are matched with the appearance of the boss of the adapter.

6. An adaptive coupling according to claim 5, wherein the adapter boss has the same profile as the drive plate boss.

7. The adaptive coupling according to claim 1, characterized in that the rubber pad (2) is provided with a through hole in the middle.

8. The adaptive coupling according to claim 1, wherein the driving disc (3) is circular, the outer ring of the driving disc (3) is uniformly provided with 6 screw holes, the side of the adapter flange (4) connected with the driving disc (3) is also provided with the same 6 screw holes, the respective 6 screw holes of the driving disc (3) and the adapter flange (4) are overlapped, and the driving disc (3) and the adapter flange (4) are fixedly connected by 6 screws.