Oil way of lubricating system for speed reducer of unmanned aerial vehicle

Abstract

An unmanned aerial vehicle speed reducer lubricating system oil way belongs to the technical field of unmanned aerial vehicle speed reducers. A first oil guide groove and a second oil guide groove are formed in a second-stage gear mounting groove of a speed reducer front casing, and a third oil guide groove and a fourth oil guide groove are formed in a second-stage gear mounting groove of a speed reducer rear casing. A lubricating system is designed on the basis of an existing unmanned aerial vehicle speed reducer structure, the oil guide groove structure is additionally arranged at the shell end, oil can be collected, parts such as a bearing and an oil seal can be lubricated through an oil channel, the lubricating effect is stable, and the lubricating effect is good. The lubricating system is compact in structure, and the external three-dimensional size of the speed reducer is not affected. The lubricating system can well collect and guide oil liquid to lubricate the bearing and the oil seal when the unmanned aerial vehicle inclines at all angles, stable effects of all system parts in a speed reducer are guaranteed, meanwhile, the consumption of lubricating oil of a speed changer is small, the transmission efficiency loss is small, and the oil consumption of an engine is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of unmanned aerial vehicle reducers, and in particular relates to an oil circuit of a lubrication system of a unmanned aerial vehicle reducer. Background Art

[0002] Most of the existing lubrication systems of UAV reducers are splash lubrication systems. The lubricating oil pool inside the reducer is concentrated at the bottom. When the gears immersed in the oil pool rotate, the lubricating oil is stirred up and thrown out, causing the oil to splash around. The splashed oil enters the gears, bearings and other parts of each level for lubrication. The propeller end above the UAV reducer is far away from the oil surface, so the lubrication effect is relatively poor, which may cause the risk of reliability or performance failure of parts such as bearings and oil seals at the propeller end. To reduce this risk, more lubricating oil needs to be added, but it will increase the gear oil stirring loss and reduce the transmission efficiency. Utility Model Content

[0003] In order to solve the above problems, the utility model further provides an oil circuit of a lubrication system of a UAV reducer with stable lubrication effect, simple and compact structure and small amount of lubricating oil consumption.

[0004] The technical solution adopted by the utility model is:

[0005] An oil circuit of a lubrication system of a reducer for an unmanned aerial vehicle comprises an oil guide groove 1, an oil guide groove 2, an oil guide groove 3, an oil guide groove 4, an oil guide groove 5, an oil guide groove 6, an oil guide groove 7, an oil guide groove 8, an oil guide groove 9, an oil guide groove 10, an oil guide groove 11 and an oil guide groove 12; the oil guide groove 1 and the oil guide groove 2 are arranged at the secondary gear mounting groove of a front casing of the reducer, and the oil guide groove 3 and the oil guide groove 4 are arranged at the secondary gear mounting groove of a rear casing of the reducer;

[0006] An oil guide groove 5 and an oil guide groove are provided at the intermediate gear installation position of the front casing of the reducer, and an oil guide groove 7 and an oil guide groove 8 are provided at the intermediate gear installation groove of the rear casing of the reducer;

[0007] An oil guide groove nine and an oil guide groove ten are arranged at the first-stage gear installation groove of the front casing of the reducer, and an oil guide groove eleven and an oil guide groove twelve are arranged at the first-stage gear installation groove of the rear casing of the reducer.

[0008] Compared with the prior art, the utility model has the following beneficial effects:

[0009] The utility model designs a lubrication system based on the existing UAV reducer structure, adds an oil guide groove structure at the shell end, can collect oil, and lubricate parts such as bearings and oil seals through the oil channel, with stable lubrication effect. The lubrication system of the utility model has a compact structure and does not affect the external three-dimensional dimensions of the reducer. The lubrication system can collect and guide oil to lubricate bearings and oil seals at various tilt angles of the UAV, ensuring the stable effect of various system parts in the reducer, while reducing the amount of transmission lubricating oil, reducing transmission efficiency loss, and reducing engine fuel consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the oil guide groove on the front casing of the reducer;

[0011] Figure 2 This is a schematic diagram of the oil guide groove on the rear casing of the reducer;

[0012] Figure 3 This is a schematic diagram of the oil collection method and lubricating oil circulation on the front casing of the reducer;

[0013] Figure 4 This is a schematic diagram of the oil collection method and lubricating oil circulation on the rear casing of the reducer;

[0014] Among them: 1. Oil guide groove one; 2. Oil guide groove two; 3. Oil guide groove three; 4. Oil guide groove four; 5. Oil guide groove five; 6. Oil guide groove six; 7. Oil guide groove seven; 8. Oil guide groove eight; 9. Oil guide groove nine; 10. Oil guide groove ten; 11. Oil guide groove eleven; 12. Oil guide groove twelve; 13. Reducer front casing; 14. Reducer rear casing; 15. Secondary gear mounting groove; 16. Intermediate gear mounting groove; 17. Primary gear mounting groove. DETAILED DESCRIPTION

[0015] In order to better understand the purpose, structure and function of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings.

[0016] like Figure 1 to Figure 4 As shown, the utility model provides an oil circuit of a lubrication system of a UAV reducer, including an oil guide groove 1, an oil guide groove 2, an oil guide groove 3, an oil guide groove 4, an oil guide groove 5, an oil guide groove 6, an oil guide groove 7, an oil guide groove 8, an oil guide groove 9, an oil guide groove 10, an oil guide groove 11, and an oil guide groove 12;

[0017] An oil guide groove 1 and an oil guide groove 2 are provided at the secondary gear installation groove 15 of the front casing 13 of the reducer, and an oil guide groove 3 and an oil guide groove 4 are provided at the secondary gear installation groove 15 of the rear casing 14 of the reducer;

[0018] An oil guide groove 5 and an oil guide groove 6 are provided at the intermediate gear installation groove 16 of the front casing 13 of the reducer, and an oil guide groove 7 and an oil guide groove 8 are provided at the intermediate gear installation groove 16 of the rear casing 14 of the reducer;

[0019] An oil guide groove 9 9 and an oil guide groove 10 are provided at the first-stage gear installation groove 17 of the front casing 13 of the reducer, and an oil guide groove 11 11 and an oil guide groove 12 are provided at the first-stage gear installation groove 17 of the rear casing 14 of the reducer.

[0020] The oil guide groove 1 is arranged at the upper end of the secondary gear mounting groove 15 of the front casing 13 of the reducer and is connected thereto, and the oil guide groove 2 is arranged on the lower end of the outer edge of the secondary gear mounting groove 15 of the front casing 13 of the reducer; the oil guide groove 3 is arranged at the upper end of the secondary gear mounting groove 15 of the rear casing 14 of the reducer and is connected thereto, and the oil guide groove 2 is arranged on the lower end of the outer edge of the secondary gear mounting groove 15 of the rear casing 14 of the reducer.

[0021] The oil guide groove 55 is obliquely arranged between the secondary gear mounting groove 15 and the intermediate gear mounting groove 16 of the front casing 13 of the reducer, and the oil guide groove 55 is connected with the corresponding intermediate gear mounting groove 16.

[0022] The oil guide groove 6 is arranged on the lower end of the outer edge of the corresponding intermediate gear mounting groove 16;

[0023] The oil guide groove 77 is obliquely arranged between the secondary gear mounting groove 15 and the intermediate gear mounting groove 16 of the rear casing 14 of the reducer, and the oil guide groove 77 is communicated with the corresponding intermediate gear mounting groove 16.

[0024] The oil guide groove 88 is arranged on the lower end of the outer edge of the corresponding intermediate gear mounting groove 16.

[0025] The oil guide groove 9 and the oil guide groove 10 are centrally symmetrically arranged inside the outer edge of the primary gear mounting groove 17 of the front casing 13 of the reducer.

[0026] The oil guide groove 11 and the oil guide groove 12 are centrally symmetrically arranged within the outer edge of the primary gear mounting groove 17 of the rear casing 14 of the reducer.

[0027] like Figure 1 , Figure 2 As shown, oil collecting grooves are designed on the front casing 13 and the rear casing 14 of the reducer of the drone, which can collect lubricating oil as the gears rotate. The lubricating oil passes through the oil channel on the shell to reach the bearings and oil seals of each gear for lubrication. When the drone is pulled up or down at a large angle, the gears are immersed in the oil pool, and the oil guide grooves on the shell can play a role in forced oil collection to ensure the stable lubrication effect of the bearings.

[0028] Oil collection method and lubricating oil circulation Figure 3 , Figure 4 As shown: viewed from the engine side, the secondary gear rotates clockwise, and the oil guide groove 1 and the oil guide groove 3 collect the oil splashed by the rotation of the secondary gear, lubricate the bearings and oil seals on the secondary gear through the oil channel of the housing, and then flow back to the oil pool from the oil guide groove 2 and the oil guide groove 4 to form a circulation; the intermediate gear rotates counterclockwise, and the oil guide groove 5 and the oil guide groove 7 collect the oil splashed by the rotation of the intermediate gear and the secondary gear, lubricate the bearings on the intermediate gear through the oil channel of the housing, and then flow back to the oil pool from the oil guide groove 6 and the oil guide groove 8 to form a circulation; the primary gear is immersed in the oil pool, and the oil guide grooves 9, 10, 11 and 12 are used for exhaust.

[0029] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. An oil circuit of a UAV reducer lubrication system, characterized by: It comprises an oil guide groove 1 (1), an oil guide groove 2 (2), an oil guide groove 3 (3), an oil guide groove 4 (4), an oil guide groove 5 (5), an oil guide groove 6 (6), an oil guide groove 7 (7), an oil guide groove 8 (8), an oil guide groove 9 (9), an oil guide groove 10 (10), an oil guide groove 11 (11) and an oil guide groove 12 (12); An oil guide groove 1 (1) and an oil guide groove 2 (2) are provided at the secondary gear mounting groove (15) of the front casing (13) of the reducer, and an oil guide groove 3 (3) and an oil guide groove 4 (4) are provided at the secondary gear mounting groove (15) of the rear casing (14) of the reducer; An oil guide groove 5 (5) and an oil guide groove 6 (6) are provided at the intermediate gear mounting groove (16) of the front casing (13) of the reducer, and an oil guide groove 7 (7) and an oil guide groove 8 (8) are provided at the intermediate gear mounting groove (16) of the rear casing (14) of the reducer; An oil guide groove nine (9) and an oil guide groove ten (10) are provided at the first gear installation groove (17) of the front casing (13) of the reducer, and an oil guide groove eleven (11) and an oil guide groove twelve (12) are provided at the first gear installation groove (17) of the rear casing (14) of the reducer.

2. The oil circuit of the lubrication system of the UAV reducer according to claim 1 is characterized by: The oil guide groove 1 (1) is arranged at the upper end of the secondary gear mounting groove (15) of the front casing (13) of the reducer and is in communication therewith, and the oil guide groove 2 (2) is arranged at the lower end of the outer edge of the secondary gear mounting groove (15) of the front casing (13) of the reducer; the oil guide groove 3 (3) is arranged at the upper end of the secondary gear mounting groove (15) of the rear casing (14) of the reducer and is in communication therewith, and the oil guide groove 2 (2) is arranged at the lower end of the outer edge of the secondary gear mounting groove (15) of the rear casing (14) of the reducer.

3. The oil circuit of the lubrication system of the UAV reducer according to claim 1 is characterized by: The oil guide groove five (5) is obliquely arranged between the secondary gear mounting groove (15) and the intermediate gear mounting groove (16) of the front casing (13) of the reducer, the oil guide groove five (5) is communicated with the corresponding intermediate gear mounting groove (16), and the oil guide groove six (6) is arranged on the lower end of the outer edge of the corresponding intermediate gear mounting groove (16); The oil guide groove seven (7) is obliquely arranged between the secondary gear mounting groove (15) and the intermediate gear mounting groove (16) of the rear casing (14) of the reducer, the oil guide groove seven (7) is connected with the corresponding intermediate gear mounting groove (16), and the oil guide groove eight (8) is arranged on the lower end of the outer edge of the corresponding intermediate gear mounting groove (16).

4. The oil circuit of the lubrication system of the UAV reducer according to claim 1 is characterized by: The oil guide groove nine (9) and the oil guide groove ten (10) are centrally symmetrically arranged inside the outer edge of the primary gear mounting groove (17) of the front casing (13) of the reducer, and the oil guide groove eleven (11) and the oil guide groove twelve (12) are centrally symmetrically arranged inside the outer edge of the primary gear mounting groove (17) of the rear casing (14) of the reducer.

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