Eccentric planet wheel mechanism

Abstract

The utility model relates to the technical field of planet wheel mechanisms, in particular to an eccentric planet wheel mechanism which comprises a driving shaft and an inner gear, a sun wheel is fixedly connected to the outer side of the driving shaft, a planet carrier is arranged on the outer side of the driving shaft and at the lower end of the sun wheel, a planet wheel is in contact with the upper end of the planet carrier, and the planet wheel is meshed with the sun wheel. And the outer side of the planet wheel is engaged with an inner gear. By arranging the limiting ring, the fixing plate, the elastic plate and other parts, the planet wheel slides into the planet carrier, the elastic plate is separated, the clamping rod is installed on the fixing plate, the clamping rod limits the elastic plate, the elastic plate is fixed through the fixing bolt, the limiting ring is fixed through the elastic plate, and the planet wheel is clamped on the planet carrier through the limiting ring. The problem that the planet wheel is generally arranged on a planet carrier in the casting process, and the planet wheel is troublesome to assemble and disassemble is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of planetary gear mechanisms, in particular to an eccentric planetary gear mechanism. Background Art

[0002] Planetary gears usually refer to planetary gears, which are a common gear transmission device. Planetary gears usually consist of a sun gear, several planetary gears and an internal gear (ring gear). They are usually arranged in a gearbox. In a planetary gear transmission, the sun gear is the central gear, and the planetary gears rotate around the sun gear and also rotate around their own axes. The internal gear is located outside the planetary gears and meshes with the teeth of the planetary gears. This structure gives planetary gear transmission many advantages, such as adjustable transmission ratio, strong load-bearing capacity, and compact structure. Planetary gear transmission has a wide range of applications in mechanical engineering, including automobile gearboxes, bicycle gearboxes, construction machinery transmissions, etc. Due to its structural characteristics, planetary gear transmissions can usually provide higher transmission efficiency and realize complex transmission schemes in limited space.

[0003] However, the prior art still has the following deficiencies: the planetary gears are generally set on the planetary carrier during casting, the loading and unloading of the planetary gears is relatively troublesome, and the planetary gears have more friction with the sun gear when in use, which easily causes the planetary gears to be worn and damaged. Therefore, the prior art needs to be improved. Utility Model Content

[0004] The utility model aims to provide an eccentric planetary gear mechanism to solve the problem that the planetary gear is generally arranged on the planetary carrier during casting, the loading and unloading of the planetary gear is relatively troublesome, and the planetary gear has more friction with the sun gear when in use, which easily causes the planetary gear to be worn and damaged.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an eccentric planetary gear mechanism, comprising a driving shaft and an internal gear, the outer side of the driving shaft is fixedly connected to a sun gear, a planet carrier is arranged on the outer side of the driving shaft and at the lower end of the sun gear, the upper end of the planet carrier contacts with a planetary gear, the planetary gear is meshed with the sun gear, the outer side of the planetary gear is meshed with an internal gear, and a mounting mechanism is arranged on the internal gear;

[0006] The mounting mechanism comprises a limiting ring, the upper end of the inner gear contacts the limiting ring, the upper end of the limiting ring is provided with a lubrication mechanism, the outer side of the inner gear is fixedly connected with a fixing plate, the fixing plate contacts the limiting ring, the lower end of the limiting ring is fixedly connected with an elastic plate, the elastic plate contacts the fixing plate, the inner part of the elastic plate is slidably connected with a fixing bolt, the fixing bolt is threadedly connected with the fixing plate, and the fixing bolt fixes the elastic plate;

[0007] The lubrication mechanism includes an oil tank, the upper end of the limit ring is fixedly connected to the oil tank, a sealing plug is inserted into the end of the oil tank away from the drive shaft, an oil pump is fixedly connected to the inside of the oil tank, the oil outlet end of the oil pump is fixedly connected to a mounting plate, the mounting plate is fixedly connected to the oil tank, and the mounting plate is used to install the atomizing nozzle.

[0008] Preferably, there are multiple fixing plates, which are distributed in a ring shape on the outer side of the internal gear, and the fixing plates are used to install the fixing bolts.

[0009] Preferably, one end of the elastic plate close to the internal gear is fixedly connected with a clamping rod, the clamping rod is slidably connected to the fixed plate, and the clamping rod limits the elastic plate.

[0010] Preferably, an atomizing nozzle is fixedly connected to the lower end of the mounting plate, and the atomizing nozzle is in contact with the oil tank, and the atomizing nozzle atomizes and sprays the lubricating oil.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model provides a limiting ring, a fixing plate, an elastic plate and other components. The planetary gear slides onto the planetary frame, the elastic plate is pried open, and the clamping rod is installed on the fixing plate. The clamping rod limits the elastic plate, and the elastic plate is fixed by fixing bolts. The elastic plate fixes the limiting ring. The limiting ring clamps the planetary gear on the planetary frame. When disassembling, the fixing bolts are loosened and the limiting ring is removed. This solves the problem that the planetary gear is generally set on the planetary frame during casting, and the loading and unloading of the planetary gear is relatively troublesome.

[0013] 2. The utility model is provided with an oil tank, a sealing plug, an oil pump and other components. The sealing plug is opened to inject lubricating oil into the oil tank. The oil pump draws the lubricating oil into the mounting plate. The atomizing nozzle sprays the lubricating oil in the form of atomizers to lubricate the planetary gears and the sun gear, thereby solving the problem that the planetary gears are easily damaged by wear due to excessive friction with the sun gear when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The overall structure of the utility model is three-dimensional Figure 1 ;

[0015] Figure 2 The overall structure of the utility model is three-dimensional Figure 2 ;

[0016] Figure 3 For the utility model Figure 1 An enlarged front cross-sectional view of the fuel tank;

[0017] Figure 4 For the utility model Figure 1 An enlarged front cross-sectional view of the elastic plate.

[0018] In the figure: 1. drive shaft; 2. sun gear; 3. planetary carrier; 4. planetary gear; 5. internal gear; 6. mounting mechanism; 61. limit ring; 62. fixing plate; 63. elastic plate; 64. fixing bolt; 65. clamping rod; 7. lubrication mechanism; 71. oil tank; 72. sealing plug; 73. oil pump; 74. mounting plate; 75. atomizing nozzle. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1 , Figure 2 An eccentric planetary gear mechanism includes a driving shaft 1 and an internal gear 5. A sun gear 2 is fixedly connected to the outer side of the driving shaft 1. A planet carrier 3 is arranged on the outer side of the driving shaft 1 and at the lower end of the sun gear 2. The upper end of the planet carrier 3 contacts a planetary gear 4. The planetary gear 4 meshes with the sun gear 2. The outer side of the planetary gear 4 meshes with the internal gear 5. A mounting mechanism 6 is arranged on the internal gear 5.

[0021] See also Figure 4 The mounting mechanism 6 includes a limiting ring 61. The upper end of the inner gear 5 contacts the limiting ring 61. The upper end of the limiting ring 61 is provided with a lubricating mechanism 7. The outer side of the inner gear 5 is fixedly connected with a fixing plate 62. The number of the fixing plates 62 is multiple. The multiple fixing plates 62 are annularly distributed on the outer side of the inner gear 5. The fixing plate 62 contacts the limiting ring 61. The lower end of the limiting ring 61 is fixedly connected with an elastic plate 63. The elastic plate 63 contacts the fixing plate 62. The inner side of the elastic plate 63 is slidably connected with a fixing bolt 64. The fixing bolt 64 is connected to the fixing plate 6 Through threaded connection, one end of the elastic plate 63 close to the inner gear 5 is fixedly connected with a clamping rod 65, and the clamping rod 65 is slidably connected with the fixing plate 62. The planetary gear 4 slides onto the planetary carrier 3, the elastic plate 63 is opened, and the clamping rod 65 is installed on the fixing plate 62. The clamping rod 65 limits the elastic plate 63, and the elastic plate 63 is fixed by the fixing bolt 64. The elastic plate 63 fixes the limiting ring 61, and the limiting ring 61 clamps the planetary gear 4 on the planetary carrier 3. When disassembling, the fixing bolt 64 is loosened and the limiting ring 61 is removed.

[0022] See also Figure 3The lubrication mechanism 7 includes an oil tank 71, the upper end of the limit ring 61 is fixedly connected to the oil tank 71, the end of the oil tank 71 away from the drive shaft 1 is plugged with a sealing plug 72, the interior of the oil tank 71 is fixedly connected to an oil pump 73, the oil outlet end of the oil pump 73 is fixedly connected to a mounting plate 74, the mounting plate 74 is fixedly connected to the oil tank 71, the lower end of the mounting plate 74 is fixedly connected to an atomizing nozzle 75, the atomizing nozzle 75 is in contact with the oil tank 71, the sealing plug 72 is opened, the lubricating oil is injected into the oil tank 71, the oil pump 73 draws the lubricating oil into the mounting plate 74, the atomizing nozzle 75 atomizes and sprays the lubricating oil to lubricate the planetary gear 4 and the sun gear 2.

[0023] The specific implementation process of the utility model is as follows: when working, the driving shaft 1 drives the sun gear 2 to rotate, and the sun gear 2 drives the planetary gear 4 to rotate. When the planetary gear 4 rotates, it drives the planetary carrier 3 to rotate. When installing, the planetary gear 4 slides onto the planetary carrier 3, the elastic plate 63 is pried open, and the clamping rod 65 is installed on the fixing plate 62. The clamping rod 65 limits the elastic plate 63, and the elastic plate 63 is fixed by the fixing bolt 64. The elastic plate 63 fixes the limiting ring 61, and the limiting ring 61 clamps the planetary gear 4 on the planetary carrier 3. When disassembling, the fixing bolt 64 is unfastened and the limiting ring 61 is removed. The device is generally installed in a confined space, the sealing plug 72 is opened, and the lubricating oil is injected into the oil tank 71. The oil pump 73 draws the lubricating oil into the mounting plate 74, and the atomizing nozzle 75 sprays the lubricating oil in an atomized form to lubricate the planetary gear 4 and the sun gear 2.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An eccentric planetary gear mechanism, comprising a drive shaft (1) and an internal gear (5), characterized in that: The outer side of the drive shaft (1) is fixedly connected to a sun gear (2); a planet carrier (3) is arranged on the outer side of the drive shaft (1) and at the lower end of the sun gear (2); the upper end of the planet carrier (3) contacts a planet gear (4); the planet gear (4) meshes with the sun gear (2); the outer side of the planet gear (4) meshes with an internal gear (5); and a mounting mechanism (6) is arranged on the internal gear (5); The mounting mechanism (6) comprises a limiting ring (61), the upper end of the internal gear (5) contacts the limiting ring (61), the upper end of the limiting ring (61) is provided with a lubricating mechanism (7), the outer side of the internal gear (5) is fixedly connected with a fixing plate (62), the fixing plate (62) contacts the limiting ring (61), the lower end of the limiting ring (61) is fixedly connected with an elastic plate (63), the elastic plate (63) contacts the fixing plate (62), the interior of the elastic plate (63) is slidably connected with a fixing bolt (64), and the fixing bolt (64) is connected to the fixing plate (62) by a thread; The lubrication mechanism (7) comprises an oil tank (71), the upper end of the limit ring (61) is fixedly connected to the oil tank (71), the end of the oil tank (71) away from the drive shaft (1) is plugged with a sealing plug (72), the interior of the oil tank (71) is fixedly connected to an oil pump (73), the oil outlet end of the oil pump (73) is fixedly connected to a mounting plate (74), and the mounting plate (74) is fixedly connected to the oil tank (71).

2. The eccentric planetary gear mechanism according to claim 1, characterized in that: There are a plurality of fixing plates (62), and the fixing plates (62) are distributed in a ring shape on the outer side of the internal gear (5).

3. The eccentric planetary gear mechanism according to claim 1, characterized in that: One end of the elastic plate (63) close to the internal gear (5) is fixedly connected to a clamping rod (65), and the clamping rod (65) is slidably connected to the fixed plate (62).

4. The eccentric planetary gear mechanism according to claim 1, characterized in that: The lower end of the mounting plate (74) is fixedly connected with an atomizing nozzle (75), and the atomizing nozzle (75) is in contact with the oil tank (71).

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