Friction planetary power unit

Abstract

A friction planetary power device in the field of gear transmission technology includes a fixed sun gear, a movable sun gear, a planetary gear, a planetary gear frame, and a generator; the fixed sun gear is a stationary solid structure, one end of which is a connecting shaft structure, and the other end is a reducer and reducer structure; the movable sun gear is a hollow structure, one end of which is provided with a gear device, and the other end is a reducer and reducer structure; both ends of the planetary gear are reducer and reducer structures, the reducer and reducer structure at one end of the planetary gear is meshed with the reducer and reducer structure end of the fixed sun gear, and the reducer and reducer structure at the other end of the planetary gear is meshed with the reducer and reducer structure end of the movable sun gear; the planetary gear is arranged on the planetary gear frame through a planetary gear shaft, and the planetary gear frame is connected to the connecting shaft of the generator. In the present invention, the movable sun gear drives the planetary gear and the planetary gear frame to rotate through friction, and the planetary gear frame drives the generator to rotate. The present invention has reasonable design, simple structure, stable transmission, and low noise.

Description

Technical Field

[0001] The present invention relates to a power device in the technical field of gear train transmission, in particular to a friction planetary power device combining a fixed sun gear with a movable sun gear. Background Art

[0002] The working characteristics of the planetary gear system are mainly reflected in the change of the fixed-axis gear system with a fixed gear axis into a gear system with a moving axis; the use of power splitting, the use of multiple planetary gears to share the load, and the rational use of the internal gear pair mechanism, which has the advantages of small size, light weight, large load-bearing capacity, long service life, high transmission efficiency, stable operation, low noise, and large transmission ratio. In addition to completing most of the functions of the fixed-axis gear system, the planetary gear system can also realize functions such as speed synthesis and speed decomposition. In the planetary gear system, the central gear, which meshes with the planetary gear and has a fixed axis position, is called the central gear. It is the basic component of the planetary gear system. When the external gear is used as the central gear, it is called the sun gear, and when the internal gear is used as the central gear, it is called the inner ring gear. In the planetary gear system, the component that supports the planetary gear shaft and rotates around the central gear axis is called the planet carrier, which is mostly a basic component in the planetary gear system. The structural form of the planet carrier is diverse, which may be a rotating arm or a rotating body, among which the gear web is the most common planet carrier.

[0003] Generators are widely used in industrial and agricultural production, national defense, science and technology, and daily life. Generators are mechanical equipment that converts other forms of energy into electrical energy. They are driven by turbines, steam turbines, diesel engines, or other power machinery, and convert the energy generated by water flow, air flow, fuel combustion, or nuclear fission into mechanical energy and transmit it to the generator, which then converts it into electrical energy. However, in the prior art, there is no technology that combines friction planets with generators. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a friction planetary power device which effectively combines a friction planet and a generator.

[0005] The present invention is realized by the following technical scheme, which includes a fixed sun gear, a movable sun gear, a planetary gear, a planetary gear frame, and a generator; the fixed sun gear is a stationary solid structure, one end of which is a connecting shaft structure, and the other end is a reducer and reducer structure; the movable sun gear is a hollow structure, one end of which is a gear structure, and the other end is a reducer and reducer structure; both ends of the planetary gear are reducer and reducer structures, the reducer and reducer structure at one end of the planetary gear is meshed with the reducer and reducer structure end of the fixed sun gear, and the reducer and reducer structure at the other end of the planetary gear is meshed with the reducer and reducer structure end of the movable sun gear; the planetary gear is arranged on the planetary gear frame through a planetary gear shaft, and the planetary gear frame is connected to the connecting shaft of the generator; the movable sun gear drives the planetary gear and the planetary gear frame to rotate through friction, and the planetary gear frame drives the generator to rotate.

[0006] Furthermore, the present invention also includes bearings, wherein the first bearing is arranged between the planetary gear and the planetary gear shaft; the second bearing is arranged in the hollow part of the movable sun gear and connects the connecting shaft of the fixed sun gear with the movable sun gear; and the third bearing is arranged at the connecting shaft end of the fixed sun gear.

[0007] Furthermore, the present invention also includes a fixed plate and a disc spring. The fixed plate is arranged at the connecting shaft end of the fixed sun gear and is located on the outside of the third bearing. The disc spring is arranged between the fixed plate and the third bearing.

[0008] Furthermore, in the present invention, the reducer and reducer structures at both ends of the planetary gear are symmetrically arranged.

[0009] Compared with the prior art, the present invention has the following beneficial effects: the present invention has reasonable design, ingenious structure, stable transmission and low noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the three-dimensional structure of Example 1 of the present invention;

[0011] Figure 2 for Figure 1 Schematic diagram of the longitudinal section structure;

[0012] Figure 3 for Figure 2 A partial enlarged view of

[0013] Among them: 1. planetary gear carrier, 2. fixed sun gear, 3. moving sun gear, 4. first needle roller bearing, 5. planetary gear shaft, 6. planetary gear, 7. generator, 8. second needle roller bearing, 9. disc spring, 10. third needle roller bearing, 11. fixed plate. DETAILED DESCRIPTION

[0014] The following is a detailed description of an embodiment of the present invention in conjunction with the accompanying drawings. This embodiment is based on the technical solution of the present invention and provides a detailed implementation method and a specific operation process, but the protection scope of the present invention is not limited to the following embodiment.

[0015] Example 1

[0016] Specific embodiments Figures 1 to 3 As shown, the present invention includes a planetary gear carrier 1, a fixed sun gear 2, a movable sun gear 3, a first needle roller bearing 4, a planetary gear shaft 5, a planetary gear 6, a generator 7, a second needle roller bearing 8, a disc spring 9, a third needle roller bearing 10, and a fixed plate 11; the fixed sun gear 2 is a stationary solid structure, one end of which is a connecting shaft structure, and the other end is a reducer and reducer structure; the movable sun gear 3 is an overall hollow structure, one end of which is provided with a gear device, and the other end is a reducer and reducer structure; both ends of the planetary gear 6 are reducer and reducer structures and are symmetrically arranged; the planetary gear shaft 5 is arranged on the planetary gear carrier 1, and the planetary gear 6 is connected to the planetary gear shaft 5 through the first needle roller bearing 4 ... The reducer and reducer structural ends of the sun gear 3 are meshed with one end of the reducer and reducer structural ends of the planetary gear 6, and the other end of the reducer and reducer structural ends of the planetary gear 6 are meshed with the reducer and reducer structural ends of the fixed sun gear 2; the connecting shaft end of the fixed sun gear 2 passes through the hollow of the movable sun gear 3, the third needle roller bearing 10 and the fixed plate 11 are both arranged at one end of the connecting shaft of the fixed sun gear 2, and the disc spring 9 is arranged between the third needle roller bearing 10 and the fixed plate 11; the second needle roller bearing 8 is arranged in the hollow of the movable sun gear 3, and connects the connecting shaft of the fixed sun gear 2 with the movable sun gear 3; the driving shaft of the generator 7 is connected to the planetary gear carrier 1.

[0017] The present invention can be used for charging low-power electronic devices. During the implementation of the present invention, the external force drives the moving sun wheel 3 to rotate through the gear on the moving sun wheel 3, and the moving sun wheel 3 drives the planetary gear 6 and the planetary gear carrier 1 to rotate through friction, and the planetary gear carrier 1 drives the rotating shaft of the generator 7 to rotate, thereby accelerating the power generation of the generator 7. The disc spring 9 can provide an axial preload. The external force can be meshed with the gear on the moving sun wheel 3 through a gear device, or can be meshed with the gear on the moving sun wheel 3 through a belt device.

[0018] Example 2

[0019] In Example 1, the external force drives the generator 7 to increase the speed of power generation through the gear on the moving sun gear 3; in this embodiment, the generator 7 can be replaced by an electric motor, so that the left moving sun gear 3 becomes the power output end, the planetary gear carrier 1 becomes the power output end, and the entire friction device plays a deceleration role.

[0020] In Example 1, the reducer and reducer structures at both ends of the planetary gear 6 are arranged symmetrically; in this embodiment, the reducer and reducer structures at both ends of the planetary gear 6 can be arranged asymmetrically, as long as the reducer and reducer of the planetary gear 6 can match the reducer and reducer of the fixed sun gear 2 and the movable sun gear 3.

[0021] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art may make various modifications or variations within the scope of the claims, which do not affect the essence of the present invention.

Claims

1. A friction planetary power device, characterized in that: It includes a fixed sun gear, a moving sun gear, a planetary gear, a planetary gear carrier, and a generator; The fixed sun gear is a static solid structure, one end of which is a connecting shaft structure and the other end is a reducer structure; The moving sun gear is a hollow structure, one end of which is a gear structure and the other end is a reducer structure; Both ends of the planetary wheel are reducer structures, the reducer structure at one end of the planetary wheel meshes with the reducer structure end of the fixed sun wheel, and the reducer structure at the other end of the planetary wheel meshes with the reducer structure end of the movable sun wheel; The planetary gears are arranged on the planetary gear carrier via planetary gear shafts, and the planetary gear carrier is connected to the connecting shaft of the generator; The moving sun gear drives the planetary gear and the planetary gear carrier to rotate through friction, and the planetary gear carrier drives the generator to rotate; It also includes bearings, wherein the first bearing is arranged between the planetary gear and the planetary gear shaft; the second bearing is arranged at the hollow part of the movable sun gear and connects the connecting shaft of the fixed sun gear with the movable sun gear; the third bearing is arranged at the connecting shaft end of the fixed sun gear; It also includes a fixing plate and a disc spring, wherein the fixing plate is arranged at the connecting shaft end of the fixed sun gear and is located outside the third bearing, and the disc spring is arranged between the fixing plate and the third bearing; The reducer and reducer structures at both ends of the planetary gear are arranged symmetrically.

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