Bidirectional shaft speed change device of hedging engine

Abstract

The utility model relates to the field of speed change devices, in particular to a bidirectional shaft speed change device of a hedging engine, which comprises a power input gear, a transmission bevel gear, a planetary gear set and an output straight shaft. The planetary gear set comprises a fixed gear fixed to the output straight shaft, a plurality of planetary gears and a gear ring which can rotate, transmission teeth are arranged on the inner wall of the gear ring, the planetary gears can be meshed with the fixed gear and the gear ring at the same time, the planetary gears are rotationally installed on a support, and the transmission bevel gear is fixed to the support. The support and the transmission bevel gear coaxially sleeve the output straight shaft and are not connected with the output straight shaft. The speed changing device is reasonable in structure, convenient to implement and capable of achieving the speed changing effect of the output straight shaft of the hedging engine.

Description

Technical Field

[0001] The utility model relates to the field of speed change devices, in particular to a bidirectional shaft speed change device for an opposed engine. Background Art

[0002] Planetary gear transmission is a classic speed change mechanism with excellent speed change effect.

[0003] The Chinese patent with publication number CN221032844U discloses a horizontal opposed engine, in which the piston cylinder realizes the power output of the output shaft through a crankshaft and a gear transmission part. However, the horizontal opposed engine cannot adjust the speed of the output shaft.

[0004] Therefore, in order to obtain a higher speed for the output shaft of the opposed engine, a bidirectional shaft speed change device for the opposed engine is developed. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the defects of the above-mentioned technology and provide a bidirectional shaft speed change device for an opposed engine.

[0006] A bidirectional shaft speed change device for an opposed engine comprises a power input gear connected to a power device providing power, a transmission bevel gear, a planetary gear set and an output spur shaft for power output, wherein the transmission bevel gear meshes with the power input gear, the planetary gear set comprises a fixed gear fixed on the output spur shaft, a plurality of planetary gears and a rotatable gear ring with transmission teeth on the inner wall, the planetary gears can mesh with the fixed gear and the gear ring at the same time, a plurality of the planetary gears are rotatably mounted on a bracket, the transmission bevel gear is fixed on the bracket, and the bracket and the transmission bevel gear are both coaxially sleeved on the output spur shaft and are not connected to the output spur shaft.

[0007] Furthermore, there are three planetary wheels, the bracket is triangular, each planetary wheel is rotatably connected to the corner position of the triangular bracket, and there are three power input gears, which are evenly distributed around the output straight shaft, and each power input gear is meshed with the transmission bevel gear.

[0008] Furthermore, a shell is also configured, and the power input gear, transmission bevel gear, and planetary gear set are all arranged in the shell. The output straight shaft passes through the shell. The power input gear is connected to the power input shaft, and the power input shaft is rotatably connected to the shell. The ring gear can rotate around the axis in the shell.

[0009] The utility model has the advantages that the utility model has a reasonable structure, is easy to implement, and can achieve the speed change effect of the output straight shaft of the hedge engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1It is a first stereoscopic schematic diagram of a bidirectional shaft speed change device of an opposed engine of the utility model;

[0011] Figure 2 It is a second stereoscopic schematic diagram of a bidirectional shaft speed change device of an opposed engine of the utility model;

[0012] Figure 3 It is a cross-sectional schematic diagram of a bidirectional shaft speed change device of an opposed engine of the utility model;

[0013] Figure 4 It is a schematic diagram of the implementation of the utility model on a hedge engine.

[0014] As shown in the figure: 1. Power input gear; 2. Transmission bevel gear; 3. Output straight shaft; 4. Fixed gear; 5. Planetary gear; 6. Ring gear; 7. Bracket; 8. Housing; 9. Power input shaft. DETAILED DESCRIPTION

[0015] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0016] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0017] In the description of the embodiments of the present utility model, if a feature is referred to as being "set", "fixed", "connected" or "installed" on another feature, it may be directly set, fixed, connected to another feature, or indirectly set, fixed, connected, or installed on another feature.

[0018] In the description of the embodiments of the present utility model, if "several" is involved, it means more than one, if "multiple" is involved, it means more than two, if "greater than", "less than" or "exceed" is involved, it should be understood as not including the number itself, if "above", "below" or "within" is involved, it should be understood as including the number itself. If "first" or "second" is involved, it should be understood as being used to distinguish technical features, and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0020] like Figure 1 and 2 As shown, a bidirectional shaft speed change device of an opposed engine comprises a power input gear 1 connected to a power device providing power, a transmission bevel gear 2, a planetary gear set and an output spur shaft 3 for power output, wherein the transmission bevel gear 2 is meshed with the power input gear 1, and the planetary gear set comprises a fixed gear 4 fixed on the output spur shaft 3, a plurality of planetary gears 5 and a rotatable ring gear 6 with transmission teeth on the inner wall, wherein the planetary gears 5 can mesh with the fixed gear 4 and the ring gear 6 at the same time, and the plurality of planetary gears 5 are rotatably mounted on a bracket 7, the transmission bevel gear 2 is fixed on the bracket 7, and the bracket 7 and the transmission bevel gear 2 are both coaxially sleeved on the output spur shaft 3 and are not connected to the output spur shaft 3.

[0021] There are three planetary gears 5 , and the bracket 7 is triangular in shape. Each planetary gear 5 is rotatably connected to a corner of the triangular bracket 7 . There are three power input gears 1 , which are evenly distributed around the output spur shaft 3 , and each power input gear 1 is meshed with the transmission bevel gear 2 .

[0022] like Figure 3 As shown, a housing 8 is also provided, wherein the power input gear 1, the transmission bevel gear 2, and the planetary gear set are all arranged in the housing 8, the output straight shaft 1 passes through the housing 8, the power input gear 1 is connected to a power input shaft 9, and the power input shaft 9 is rotatably connected to the housing 8, and the ring gear 6 can rotate around the axis in the housing 8.

[0023] In the present invention, the power input shaft 9 and the housing 8, and the output straight shaft 3 and the housing 8 can be rotatably connected via bearings or bearing seats.

[0024] like Figure 4As shown, the utility model is applied to a schematic diagram of an opposed engine, in which the piston cylinder of the engine is connected to a power input shaft 9 through a crankshaft, the power input shaft 9 drives the power input gear 1 to rotate, the power input gear 1 drives the transmission bevel gear 2 to rotate, the transmission bevel gear 2 drives the planetary gear 5 and the ring gear 6 to rotate through the bracket 7, and then drives the output direct shaft 3 to rotate, and the speed change effect of the output direct shaft 3 is realized through the planetary gear set.

[0025] When the utility model is implemented, the number of teeth and the module of the planetary speed change mechanism are calculated under the condition of determining the space limit size, input and output rotation speeds and torque, and then the fixed connection of the mechanical mechanism is coordinated to achieve the speed change effect.

[0026] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0027] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A bidirectional shaft speed change device for an opposed engine, characterized in that: The invention comprises a power input gear (1) connected to a power device for providing power, a transmission bevel gear (2), a planetary gear set and an output spur shaft (3) for outputting power, wherein the transmission bevel gear (2) meshes with the power input gear (1), the planetary gear set comprises a fixed gear (4) fixed on the output spur shaft (3), a plurality of planetary gears (5) and a rotatable ring gear (6) with transmission teeth on its inner wall, the planetary gears (5) can mesh with the fixed gear (4) and the ring gear (6) at the same time, the plurality of planetary gears (5) are rotatably mounted on a bracket (7), the transmission bevel gear (2) is fixed on the bracket (7), and the bracket (7) and the transmission bevel gear (2) are both coaxially sleeved on the output spur shaft (3) and are not connected to the output spur shaft (3).

2. A bidirectional shaft speed change device for an opposed engine according to claim 1, characterized in that: The number of the planetary gears (5) is three, the bracket (7) is triangular in shape, each planetary gear (5) is rotatably connected to a corner position of the triangular bracket (7), the number of the power input gears (1) is three, they are evenly distributed around the output spur shaft (3), and each power input gear (1) is meshed with the transmission bevel gear (2).

3. A bidirectional shaft speed change device for an opposed engine according to claim 2, characterized in that: A housing (8) is also provided. The power input gear (1), the transmission bevel gear (2), and the planetary gear set are all arranged in the housing (8). The output straight shaft (3) passes through the housing (8). The power input gear (1) is connected to a power input shaft (9). The power input shaft (9) is rotatably connected to the housing (8). The ring gear (6) can rotate around an axis in the housing (8).

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