Gear mechanism capable of smoothly outputting torque

Abstract

The invention provides a gear mechanism capable of smoothly outputting torque, which comprises an input gear, an output gear, guide rods and a disc spring, the output gear is provided with a plurality of wedge-shaped surfaces, and each wedge-shaped surface is connected to the inner wall of the input gear through one guide rod, so that the input gear and the output gear can rotate relatively; a disc spring is installed between each guide rod and the corresponding wedge-shaped face, and the input gear is further provided with an input tooth face meshed with an external structure. According to the gear mechanism capable of smoothly outputting the torque, the problem that the reliability is reduced due to impact between an engine and a propeller is solved, the torque can be smoothly output, and vibration is reduced.

Description

Technical Field

[0001] The present invention belongs to the field of internal combustion engines, and particularly relates to a gear mechanism with smooth torque output. Background Art

[0002] A speed reduction mechanism is generally installed between an engine and a propeller. It often operates under conditions such as high speed, heavy load, high reduction ratio, and drastic load changes. To ensure low-impact, efficient, and reliable torque output of the propeller, a mechanism needs to be designed to reduce torque fluctuations, reduce the difference between the torque peak and the average value, reduce the impact of the engine operation on the propeller and the impact of the propeller operation on the engine, and improve the reliability of the device. Summary of the Invention

[0003] In view of this, the present invention aims to provide a gear mechanism with smooth torque output to solve the problem of reduced reliability caused by the impact between the engine and the propeller.

[0004] To achieve the above object, the technical solution of the present invention is realized as follows: A gear mechanism with smooth torque output includes an input gear, an output gear, a guide rod, and a disc spring. The output gear is provided with a plurality of wedge-shaped surfaces. Each wedge-shaped surface is connected to the inner wall of the input gear through a guide rod, enabling relative rotation between the input gear and the output gear. A disc spring is installed between each guide rod and the wedge-shaped surface. The input gear is further provided with an input tooth surface meshing with an external structure.

[0005] Further, the input gear includes a body, which is a circular ring structure. The outer wall of the body forms the input tooth surface, and a driving arc is provided inside. The tooth surface is used to mesh with the transmission gear of the engine, and the driving arc is used to install the output gear and enable relative rotation between the two.

[0006] Further, the driving arc is formed by alternating a plurality of large arcs and small arcs.

[0007] Further, the output gear includes an output tooth surface and a driving wheel installed on one side thereof. The driving wheel is connected to the input gear through a guide rod.

[0008] Further, an input lubricating oil hole is provided on the output tooth surface.

[0009] Further, the driving wheel is a wedge-shaped driving wheel. The driving wheel is provided with alternately arranged wedge-shaped surfaces and arc-shaped surfaces. A driving lubricating oil hole is provided on the arc-shaped surface, and a guide rod installation hole is provided on the wedge-shaped surface.

[0010] Further, the guide rod includes a semi-cylinder and a cylindrical rod installed at its flat surface. The semi-cylinder is tangent to the large arc, and the cylindrical rod is used to be installed in the guide rod installation hole.

[0011] Further, a guiding lubricating oil hole is provided in the middle of the guiding rod.

[0012] Further, the input lubricating oil hole, the driving lubricating oil hole and the guiding lubricating oil hole are communicated with each other to form a lubricating oil path.

[0013] Compared with the prior art, the gear mechanism with smooth torque output according to the present invention has the following advantages: (1) The gear mechanism with smooth torque output according to the present invention solves the problem of reduced reliability caused by the impact between the engine and the propeller, enables the torque to be output smoothly, and reduces vibration.

[0014] (2) The gear mechanism with smooth torque output according to the present invention effectively reduces the peak value of the transmitted torque, effectively reduces the impact caused by the large deviation of the torque peak value, and prolongs the service life of the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 is a schematic diagram of the gear mechanism with smooth torque output according to an embodiment of the present invention; Figure 2 is a schematic diagram of the input gear according to an embodiment of the present invention; Figure 3 is a schematic diagram of the output gear according to an embodiment of the present invention; Figure 4 is a schematic diagram of the guiding rod according to an embodiment of the present invention; Figure 5 is a schematic diagram of the lubricating oil path according to an embodiment of the present invention.

[0016] DESCRIPTION OF THE REFERENCE NUMERALS: 1 - input gear; 11 - input tooth surface; 12 - driving arc; 121 - large arc; 122 - small arc; 2 - output gear; 21 - output tooth surface; 221 - input lubricating oil hole; 22 - driving wheel; 221 - driving lubricating oil hole; 222 - guiding rod mounting hole; 223 - arc surface; 3 - guiding rod; 31 - semi - cylinder; 32 - cylindrical rod; 33 - guiding lubricating oil hole; 4 - disc spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0018] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0019] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may 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 through specific circumstances.

[0020] The present invention will be described in detail below with reference to the drawings and in conjunction with embodiments.

[0021] A gear mechanism with smooth torque output, as Figures 1 to 5 shown, includes an input gear 1, an output gear 2, a guide rod 3, and a disc spring 4. The output gear 2 is provided with a plurality of wedge-shaped surfaces, and each wedge-shaped surface is connected to the inner wall of the input gear 1 through a guide rod 3. A disc spring 4 is installed between each guide rod 3 and the wedge-shaped surface. The input gear 1 is further provided with an input tooth surface 11 that meshes with an external structure.

[0022] The input gear 1 includes a body, which is in a ring structure. The outer wall of the body forms the input tooth surface 11, and a driving arc 12 is provided inside. The tooth surface 11 is used to mesh with the engine transmission gear, and the driving arc 12 is used to install the output gear 2 and enable relative rotation between the two.

[0023] The driving arc 12 is formed by alternating a plurality of large arcs 121 and small arcs 122.

[0024] The output gear 2 includes an output tooth surface 21 and a driving wheel 22 installed on one side thereof. The output tooth surface 21 meshes with a part on the propeller, and the driving wheel 22 is connected to the input gear 1 through the guide rod 3.

[0025] An input lubricating oil hole 211 is provided on the output tooth surface 21.

[0026] The driving wheel 22 is a wedge-shaped driving wheel. The driving wheel 22 is provided with wedge-shaped surfaces and arc surfaces 223 arranged in a staggered manner. A driving lubricating oil hole 221 is provided on the arc surface 223, and a guide rod mounting hole 222 is provided on the wedge-shaped surface.

[0027] The guide rod 3 includes a semi-cylinder 31 and a cylindrical rod 32 mounted on its flat surface. The semi-cylinder 31 is tangent to the large arc 121, and the cylindrical rod 32 is used to be mounted in the guide rod mounting hole 222.

[0028] A guide lubricating oil hole 33 is provided in the middle of the guide rod 3.

[0029] The input lubricating oil hole 211, the driving lubricating oil hole 221, and the guide lubricating oil hole 33 form the lubricating oil path of the gear mechanism for smooth torque output.

[0030] The working principle of a gear mechanism for smooth torque output is as follows: The engine torque is transmitted to the input gear 1, and the output gear 2 is connected to the propeller through relevant mechanisms. When the engine is running, the input gear 1 and the output gear 2 rotate relative to each other. The disc spring 4 mounted on the guide rod 3 will deform, thereby reducing the torque peak and realizing the function of smooth torque output. To improve the reliability of the mechanism, the output gear 2 and the guide rod 3 are respectively provided with an input lubricating oil hole 211, a driving lubricating oil hole 221, and a guide lubricating oil hole 33. The lubricating oil lubricates the surfaces of the contacting parts through the above oil holes, reducing the friction between them and absorbing the heat generated by the friction.

[0031] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A gear mechanism with smooth torque output, characterized in that: It includes an input gear, an output gear, a guide rod and a disc spring. The output gear is provided with a number of wedge-shaped surfaces, and each wedge-shaped surface is connected to the inner wall of the input gear through a guide rod, enabling relative rotation between the input gear and the output gear. A disc spring is installed between each guide rod and the wedge-shaped surface. The input gear is also provided with an input tooth surface that meshes with an external structure, and a lubricating oil path is formed between the output gear and the guide rod.

2. A gear mechanism with smooth torque output according to claim 1, characterized in that: The input gear includes a body, which is a ring structure. The outer wall of the body forms the input tooth surface, and a driving arc is provided inside. The tooth surface is used to mesh with the engine transmission gear, and the driving arc is used to install the output gear and enable relative rotation between the two.

3. The gear mechanism with smooth torque output according to claim 2, wherein: The driving arc is formed by the intersection of a number of large arcs and small arcs.

4. A gear mechanism with smooth torque output according to claim 3, characterized in that: The output gear includes an output tooth surface and a driving wheel installed on one side thereof. The driving wheel is connected to the input gear through a guide rod.

5. A gear mechanism with smooth torque output according to claim 4, characterized in that: An input lubricating oil hole is provided on the output tooth surface.

6. The gear mechanism with smooth torque output according to claim 4, characterized in that: The driving wheel is a wedge-shaped driving wheel. The driving wheel is provided with alternately arranged wedge-shaped surfaces and arc surfaces. A driving lubricating oil hole is provided on the arc surface, and a guide rod installation hole is provided on the wedge-shaped surface.

7. A gear mechanism with smooth torque output according to claim 6, characterized in that: The guide rod includes a semi-cylinder and a cylindrical rod installed at its flat surface. The semi-cylinder is tangent to the large arc, and the cylindrical rod is used to be installed in the guide rod installation hole.

8. A gear mechanism with smooth torque output according to claim 7, characterized in that: A guide lubricating oil hole is provided in the middle of the guide rod.

9. A gear mechanism with smooth torque output according to claim 8, characterized in that: The input lubricating oil hole, the driving lubricating oil hole and the guide lubricating oil hole communicate with each other to form a lubricating oil path.

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