A Compact Space Friction Clutch Shock Absorber Assembly and Installation Method

Abstract

The present invention provides a friction clutch shock absorber assembly in a compact space and an installation method, relating to the technical fields of friction clutches and shock absorbers. The friction clutch shock absorber assembly in a compact space includes a bearing cover, a clutch inner ring, a clutch outer ring, a shock absorber, a bearing, and an adjusting pin. Through the combined setting of the clutch inner ring, the clutch outer ring, the shock absorber, and an elastic device, damage to the shock absorber caused by large impact vibrations can be effectively prevented, and excessive loads can be prevented from being transmitted to the optoelectronic device under overload conditions, thereby avoiding damage to the optoelectronic device, and solving the problem in the prior art that excessive loads are directly transmitted to the optoelectronic pod, which easily causes damage to the optoelectronic device.

Description

Technical Field

[0001] The present invention relates to the technical fields of friction clutches and shock absorbers, and particularly to a friction clutch shock absorber assembly in a compact space and an installation method thereof. Background Art

[0002] The outer azimuth and pitch axis system components of large optoelectronic pods need to have a strong reserve of anti-external disturbing torque; therefore, in order to meet the motion requirements, a high-power motor solution is usually adopted, but this often exceeds the maximum current limit provided by the aircraft. Therefore, in many cases, a solution with a speed reducer is selected.

[0003] In order to ensure that the coordinate system of the optoelectronic device is consistent with the aircraft coordinate system, shock absorbers are not configured for the outer azimuth and pitch axis systems of the optoelectronic device; in the face of large impacts and vibrations, excessive loads will be directly transmitted to the relevant gears of the speed reducer, resulting in damage to the speed reducer.

[0004] In order to avoid directly transmitting excessive loads to the optoelectronic pod under overload conditions, a common clutch solution can be introduced. However, relying solely on the clutch is not sufficient, so a shock absorber structure is added on this basis to effectively protect the speed reducer and optoelectronic device, thereby extending their service life and improving the reliability of the system. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defects in the prior art, and thus provide a friction clutch shock absorber assembly in a compact space and an installation method thereof.

[0006] A friction clutch shock absorber assembly in a compact space includes: a bearing cover, a clutch inner ring, a clutch outer ring, and a shock absorber. The bearing cover is connected to the clutch outer ring. A bearing is arranged between the clutch inner ring and the clutch outer ring. The clutch inner ring and the clutch outer ring are connected by an adjusting pin. An elastic device is arranged on the adjusting pin, and the elastic device is located between the clutch inner ring and the clutch outer ring. The shock absorber is arranged between the clutch inner ring and the clutch outer ring. The clutch outer ring is connected to the flange of the speed reducer, and the clutch inner ring is connected to the flange of the optoelectronic pod base.

[0007] Further, the elastic device is a disc spring, and the disc spring is arranged on the adjusting pin between the clutch inner ring and the clutch outer ring.

[0008] Further, a first mounting flange is arranged on the clutch outer ring, and the clutch outer ring is connected to the flange of the speed reducer through the first mounting flange.

[0009] Further, a second mounting flange is arranged on the clutch inner ring, and the clutch inner ring is connected to the flange of the optoelectronic pod base through the second mounting flange.

[0010] Further, the compact space friction clutch shock absorber assembly further includes an upper gasket, and the upper gasket is disposed at one end of the disc spring close to the clutch inner ring.

[0011] Further, the compact space friction clutch shock absorber assembly further includes a lower gasket, and the lower gasket is disposed at one end of the disc spring close to the clutch outer ring.

[0012] Further, the compact space friction clutch shock absorber assembly further includes a lock nut, and the lock nut is disposed on the clutch inner ring.

[0013] Further, the outer ring of the bearing is connected to the bearing cover and the clutch outer ring, and the inner ring of the bearing is connected to the clutch inner ring.

[0014] Further, the compact space friction clutch shock absorber assembly further includes fixing screws, and the bearing cover and the clutch outer ring are connected by the fixing screws.

[0015] The present invention further includes an installation method for a compact space friction clutch shock absorber assembly, which is implemented based on the compact space friction clutch shock absorber assembly described in any one of the above. First, install the elastic device, the bearing and the shock absorber between the clutch inner ring and the clutch outer ring, then connect the bearing cover to the clutch outer ring, and finally install the adjustment pin on the elastic device, the clutch inner ring and the clutch outer ring. The clutch outer ring is connected to the reducer flange, and the clutch inner ring is connected to the optoelectronic pod base flange.

[0016] The technical solution of the present invention has the following advantages:

[0017] In the technical solution provided by the present invention, through the combined setting of the clutch inner ring, the clutch outer ring, the shock absorber and the elastic device, the damage to the shock absorber caused by large impact vibrations can be effectively prevented, and excessive loads can be prevented from being transmitted to the optoelectronic device under overload conditions, thereby avoiding damage to the optoelectronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a cross-sectional view of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the shock absorber structure of the present invention.

[0021] Description of the reference numerals:

[0022] 1 - Fixed screw; 2 - Bearing cover; 3 - Bearing; 4 - Locking nut; 5 - Lower gasket; 6 - Upper gasket; 7 - Adjusting pin; 8 - Disc spring; 9 - Clutch inner ring; 10 - Clutch outer ring; 11 - Shock absorber. Detailed implementation mode

[0023] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0024] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0026] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0027] As Figure 1 and Figure 2 shown, a compact space friction clutch shock absorber assembly includes: a bearing cover 2, a clutch inner ring 9, a clutch outer ring 10, and a shock absorber 11. The bearing cover 2 is connected to the clutch outer ring 10. A bearing 3 is provided between the clutch inner ring 9 and the clutch outer ring 10. The clutch inner ring 9 and the clutch outer ring 10 are connected by an adjusting pin 7. An elastic device is provided on the adjusting pin 7 and is located between the clutch inner ring 9 and the clutch outer ring 10. The shock absorber 11 is provided between the clutch inner ring 9 and the clutch outer ring 10. The clutch outer ring 10 is connected to the reducer flange, and the clutch inner ring 9 is connected to the optoelectronic pod base flange.

[0028] The above-mentioned compact space friction clutch shock absorber assembly can effectively prevent damage to the shock absorber 11 caused by large impact vibrations through the combined setting of the clutch inner ring 9, the clutch outer ring 10, the shock absorber 11, and the elastic device, and prevent excessive load from being transmitted to the optoelectronic device under overload conditions, thereby avoiding damage to the optoelectronic device. At the same time, the assembly structure is compact and occupies a small space, meeting the installation and design requirements of the optoelectronic device.

[0029] As Figure 1 and Figure 2 shown, in this embodiment, the elastic device is a disc spring 8, and the disc spring 8 is arranged on the adjusting pin 7 between the clutch inner ring 9 and the clutch outer ring 10; the compact space friction clutch shock absorber assembly further includes an upper gasket 6, and the upper gasket 6 is arranged at one end of the disc spring 8 close to the clutch inner ring 9; the compact space friction clutch shock absorber assembly further includes a lower gasket 5, and the lower gasket 5 is arranged at one end of the disc spring 8 close to the clutch outer ring 10; the setting of the disc spring 8 effectively buffers the impact of external forces on the shock absorber 11 and the optoelectronic device. At the same time, the upper gasket 6 and the lower gasket 5 are arranged at both ends of the disc spring 8 to realize the limit installation of the disc spring 8. The adjusting pin 7 is provided with threads, and the adjusting pin 7 passes through the central holes of the clutch inner ring 9, the lower gasket 5, the upper gasket 6, and the disc spring 8, and finally is connected to the clutch outer ring 10.

[0030] As Figure 1 shown, in this embodiment, a first mounting flange is arranged on the clutch outer ring 10, and the clutch outer ring 10 is connected to the reducer flange through the first mounting flange and screws; a second mounting flange is arranged on the clutch inner ring 9, and the clutch inner ring 9 is connected to the optoelectronic pod base flange through the second mounting flange and screws; the flange connection method is convenient for quick disassembly and reinstallation, and helps to ensure the safety and stability of the component connection.

[0031] As Figure 1 shown, in this embodiment, the compact space friction clutch shock absorber assembly further includes a lock nut 4, and the lock nut 4 is arranged on the clutch inner ring 9; the lock nut 4 is threadedly connected to the clutch inner ring 9, and at the same time, the lock nut 4 contacts the bearing 3 to form a limit, and the lock nut 4 and the clutch outer ring 10 jointly limit the axial displacement of the bearing 3.

[0032] As Figure 1 and Figure 2As shown, in this embodiment, the outer ring of the bearing 3 is connected to the bearing cover 2 and the clutch outer ring 10. Among them, the outer ring of the bearing 3 is connected to the clutch outer ring 10 through shaft-hole fit, and the inner ring of the bearing 3 is connected to the clutch inner ring 9 through shaft-hole fit. Since the clutch outer ring 10 is connected to the reducer flange through the first mounting flange, therefore, the movement of the clutch outer ring 10 is synchronized with that of the reducer. Through the setting of the bearing 3, relative movement is generated between the clutch outer ring 10 and the clutch inner ring 9. External transmitted overload vibration, etc. are reduced by the shock absorber 11 to protect the optoelectronic pod and optoelectronic equipment. The bearing cover 2 and the clutch outer ring 10 also limit the axial displacement of the bearing 3. The bearing cover 2 presses the bearing 3 to prevent the bearing 3 from moving axially.

[0033] As Figure 1 shown, in this embodiment, the compact space friction clutch shock absorber assembly further includes fixing screws 1. The fixing screws 1 are evenly distributed in an array along the outer ring of the bearing cover 2. The bearing cover 2 is connected to the clutch outer ring 10 through the fixing screws 1.

[0034] As Figure 1 and Figure 2 shown, in this embodiment, a boss is provided on one side of the clutch outer ring 10 close to the clutch inner ring 9. The shock absorber 11 is installed on both sides of the boss. At the same time, a groove corresponding to the boss and the shock absorber 11 is provided on one side of the clutch inner ring 9 close to the clutch outer ring 10. The boss and the shock absorber 11 are installed in the groove, and the shock absorber 11 is pressed between the clutch inner ring 9 and the clutch outer ring 10 to realize the relative movement between the clutch inner ring 9 and the clutch outer ring 10.

[0035] As Figure 1 and Figure 2 shown, the present invention also includes an installation method of a compact space friction clutch shock absorber assembly. This method is realized based on a compact space friction clutch shock absorber assembly described in any one of the above. First, the elastic device, the bearing 3 and the shock absorber 11 are installed between the clutch inner ring 9 and the clutch outer ring 10, then the bearing cover 2 is connected to the clutch outer ring 10, and finally the adjusting pin 7 is installed on the elastic device, the clutch inner ring 9 and the clutch outer ring 10. The clutch outer ring 10 is connected to the reducer flange, and the clutch inner ring 9 is connected to the optoelectronic pod base flange;

[0036] Specifically, first, the disc spring 8, the bearing 3 and the shock absorber 11 are installed between the clutch inner ring 9 and the clutch outer ring 10. At the same time, a gasket 6 and a lower gasket 5 are respectively installed at both ends of the disc spring 8. Then the bearing cover 2 is connected to the clutch outer ring 10 through the fixing screws 1. Finally, the adjusting pin 7 passes through the central holes of the clutch inner ring 9, the lower gasket 5, the upper gasket 6 and the disc spring 8. The adjusting pin 7 is connected to the clutch outer ring 10. The clutch outer ring 10 is connected to the reducer flange through the first mounting flange and screws, and the clutch inner ring 9 is connected to the optoelectronic pod base flange through the second mounting flange and screws;

[0037] In addition, the torque required for locking can be changed by changing the thread length of the adjusting pin 7 and the number of disc springs 8. Assuming that the torque transmitted by the inner clutch ring 9 is M 1 , the force generated by a single disc spring 8 is F. The disc springs 8 are arranged in parallel, and there are n disc springs 8, and the generated force is nF. The friction coefficient between the lower gasket 5 and the outer clutch ring 10 is μ, and the distance from the disc spring 8 to the center of the component is r. When μnFr < M 1 , the inner clutch ring 9 is connected to the relevant base flange of the optoelectronic pod and moves with the optoelectronic pod base. The outer clutch ring 10 is connected to the reducer flange and moves with the reducer. Relative movement occurs between the inner clutch ring 9 and the outer clutch ring 10. The overload vibration and the like transmitted from the outside are reduced by the shock absorber 11 to protect the optoelectronic pod.

[0038] Obviously, the above embodiments are only examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. A compact friction clutch shock absorber assembly, comprising: A bearing cover (2), a clutch inner ring (9), a clutch outer ring (10) and a shock absorber (11), characterized in that the bearing cover (2) is connected to the clutch outer ring (10), a bearing (3) is arranged between the clutch inner ring (9) and the clutch outer ring (10), the clutch inner ring (9) and the clutch outer ring (10) are connected via an adjustment pin (7), an elastic device is arranged on the adjustment pin (7), and the elastic device is located between the clutch inner ring (9) and the clutch outer ring (10), the shock absorber (11) is arranged between the clutch inner ring (9) and the clutch outer ring (10), the clutch outer ring (10) is connected to the reducer flange, and the clutch inner ring (9) is connected to the photoelectric pod base flange; The elastic device is a disc spring (8), and the disc spring (8) is arranged on an adjustment pin (7) between the clutch inner ring (9) and the clutch outer ring (10); The compact space friction clutch shock absorber assembly further comprises an upper gasket (6), which is arranged on one end of the disc spring (8) close to the clutch inner ring (9); The compact space friction clutch shock absorber assembly further comprises a lower gasket (5), which is arranged on one end of the disc spring (8) close to the clutch outer ring (10).

2. A compact space friction clutch shock absorber assembly according to claim 1, characterized in that: The clutch outer ring (10) is provided with a first mounting flange, and the clutch outer ring (10) is connected to the reducer flange via the first mounting flange.

3. A compact space friction clutch shock absorber assembly according to claim 1, characterized in that: A second mounting flange is provided on the clutch inner ring (9), and the clutch inner ring (9) is connected to the photoelectric pod base flange via the second mounting flange.

4. A compact space friction clutch shock absorber assembly according to claim 1, characterized in that: The compact space friction clutch shock absorber assembly further comprises a locking nut (4), wherein the locking nut (4) is arranged on the clutch inner ring (9).

5. A compact space friction clutch shock absorber assembly according to claim 1, characterized in that: The outer ring of the bearing (3) is connected to the bearing cover (2) and the clutch outer ring (10), and the inner ring of the bearing (3) is connected to the clutch inner ring (9).

6. A compact space friction clutch shock absorber assembly according to claim 1, characterized in that: The compact space friction clutch shock absorber assembly further comprises a fixing screw (1), and the bearing cover (2) and the clutch outer ring (10) are connected via the fixing screw (1).

7. A method for installing a compact space friction clutch shock absorber assembly, the method being implemented based on the compact space friction clutch shock absorber assembly according to any one of claims 1 to 6, characterized in that: First, the elastic device, the bearing (3) and the shock absorber (11) are installed between the clutch inner ring (9) and the clutch outer ring (10), and then the bearing cover (2) is connected to the clutch outer ring (10). Finally, the adjustment pin (7) is installed on the elastic device, the clutch inner ring (9) and the clutch outer ring (10), the clutch outer ring (10) is connected to the reducer flange, and the clutch inner ring (9) is connected to the photoelectric pod base flange.

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