Planetary gear transmission

Abstract

The present invention discloses a planetary gear transmission machine, comprising a driving shaft, an input shaft, an output shaft, an input planetary part and an output planetary part; the input planetary part and the output planetary part are arranged in parallel; the input shaft runs through the input planetary part and the output planetary part, and the input shaft is drivingly connected to the input planetary part and smoothly connected to the output planetary part; the input shaft is drivingly connected to the driving shaft; the output planetary part is drivingly connected to the output shaft. The present invention has the characteristics of stable transmission and labor saving, and reduces the loss of input energy.

Description

Technical Field

[0001] The invention relates to a planetary gear transmission machine. Background Art

[0002] Gear transmission is the most common mechanical transmission in modern machines. It is a major form of transmitting machine power and motion and an important basic component of mechanical products. Compared with belt, chain, friction, hydraulic and other mechanical transmissions, it has a series of characteristics such as large power range, high transmission efficiency, high circular motion speed, accurate transmission ratio and long service life. Therefore, it has become an indispensable transmission component of many mechanical products and is also the largest transmission form in the machine.

[0003] Planetary gear transmission is a structural form of gear transmission. Planetary gear transmission is sometimes called "epicyclic gear transmission". This transmission structure is a gear system with a housing, which includes one or more planetary gears rotating around a sun gear located in the center. However, the existing planetary gear transmission device encounters large resistance during transmission, which reduces the energy transmission efficiency and consumes a lot of driving energy. Summary of the invention

[0004] The object of the present invention is to provide a planetary gear transmission machine in view of the defects of the prior art.

[0005] In order to achieve the above-mentioned purpose of the present invention, the following technical scheme is adopted:

[0006] A planetary gear transmission machine, comprising a drive shaft, an input shaft, an output shaft, an input planetary part and an output planetary part; the input planetary part and the output planetary part are arranged in parallel; the input shaft passes through the input planetary part and the output planetary part, and the input shaft is in driving connection with the input planetary part and is smoothly connected with the output planetary part; the input shaft is in driving connection with the drive shaft; the output planetary part is in driving connection with the output shaft;

[0007] The input planetary unit includes a rotating shaft, a supporting shaft, an input planet carrier, a planet carrier, at least two planetary gear rings, an input gear ring, at least two planetary rollers, a center roller and an input center planetary gear;

[0008] The input planet carrier is arranged in parallel with the input gear ring, and the input planetary gear is arranged at the center of the input gear ring; the planetary gear ring is arranged around the input center planetary gear, and the planetary gear ring is respectively meshed and connected with the input gear ring and the input center planetary gear; and each planetary gear ring is arranged in parallel with a planet carrier;

[0009] The central rolling element is arranged at the center of the planetary gear ring, and is surrounded by planetary rolling elements arranged in a planetary pattern; one side of the planetary rolling element rolls circumscribing the central rolling element, and the other side of the planetary rolling element rolls inscribing the planetary gear ring; the planetary rolling element is connected to the planetary carrier through a support shaft, and one of the planetary rolling elements is connected by a rotating shaft, which sequentially passes through the input planetary carrier, the planetary carrier, the planetary gear ring, the planetary rolling element, and is connected to the output planetary part;

[0010] The output planetary part includes an output planetary carrier, an output gear ring, at least two planetary gears, an output center planetary gear, an output transmission member and a sleeve; the output planetary carrier is arranged in parallel with the output gear ring; the output center planetary gear is arranged at the center of the output gear ring, and the output center planetary gear is surrounded by planetary gears arranged in a planetary pattern; the sleeve passes through the planetary gears and is connected to the output planetary carrier, and the sleeve is correspondingly sleeved with the rotating shaft; one end of the output transmission member is inserted into the output center planetary gear and meshed with the output center planetary gear for transmission connection, and the other end of the output transmission member is transmission connected to the output shaft; and the output transmission member is sleeved on the input shaft.

[0011] Working principle:

[0012] The driving shaft drives the input shaft to rotate, and the input shaft drives the input center planetary gear to rotate. The input center planetary gear and the planetary gear ring are externally meshed, thereby driving the planetary gear ring to rotate. The center rolling element and the planetary rolling element in the planetary gear ring roll on each other, and the other side of the planetary gear ring is meshed with the input gear ring for transmission. The planetary gear ring drives the rotating shaft to rotate around the input shaft. When the rotating shaft rotates, it drives the sleeve to rotate around the input shaft. The sleeve pushes the planetary gear to mesh along the output gear ring. The planetary gear drives the output center planetary gear to rotate. The output center planetary gear drives the output transmission member sleeved on the input shaft to rotate, and the output transmission member drives the output shaft to rotate.

[0013] As a further improvement of the technical solution, the planetary gear transmission machine of the present invention also includes a support seat, a first support cover, a first bolt, a second bolt, a third bolt and a second support cover; the first support cover and the second support cover are arranged in parallel on the support seat; the first support cover and the input planetary part are connected by a first bolt; the second support cover and the output planetary part are connected by a third bolt; the outer edge of the input planetary part and the outer edge of the output planetary part are connected by a second bolt; the drive shaft passes through the first support cover; and the output shaft passes through the second support cover.

[0014] As a further improvement of the technical solution, the planetary gear transmission machine of the present invention further includes a coupling; one end of the coupling is connected to the drive shaft, and the other end thereof is connected to the input shaft.

[0015] As a further improvement of the technical solution, the planetary gear transmission machine of the present invention further includes a concave member; one end of the concave member is transmission-connected to the output transmission member, and the other end thereof is connected to the output shaft.

[0016] As a further improvement of the technical solution, an inner gear ring is provided in the concave opening of the concave member; an outer gear ring is provided on the end of the output transmission member connected to the concave member; the outer gear ring and the inner gear ring are matched and meshed for transmission connection.

[0017] As a further improvement of the technical solution, a through hole is provided in the middle of the output center planetary gear, and an inner ring gear is provided in the through hole; an outer ring gear is provided at one end of the output transmission member that is meshed and transmission-connected with the output center planetary gear; the outer ring gear is matched and meshed and transmission-connected with the inner ring gear.

[0018] As a further improvement of the technical solution, the output planet carrier includes a first output planet carrier and a second output planet carrier; the first output planet carrier is arranged in parallel at one end of the output gear ring; the second output planet carrier is arranged in parallel at the other end of the output gear ring; the first output planet carrier and the second output planet carrier are connected by a sleeve.

[0019] As a further improvement of the technical solution, the input planet carrier includes a first input planet carrier and a second input planet carrier; the first input planet carrier is arranged in parallel at one end of the input gear ring; the second input planet carrier is arranged in parallel at the other end of the input gear ring; the first input planet carrier and the second input planet carrier are connected by a rotating shaft.

[0020] As a further improvement of the technical solution, the planet carrier includes a first planet carrier and a second planet carrier; the first planet carrier is arranged in parallel at one end of the planetary gear ring; the second planet carrier is arranged in parallel at the other end of the planetary gear ring; a rotating shaft and a supporting shaft are installed between the first planet carrier and the second planet carrier.

[0021] A transmission machine uses the above-mentioned planetary gear transmission machine.

[0022] The present invention has the following improvements over the prior art:

[0023] 1. The present invention can reduce transmission resistance, thereby reducing the loss of input energy and improving output efficiency; the labor-saving transmission of the present invention is: the driving shaft drives the input shaft to rotate, the input shaft drives the input center planetary gear to rotate, the input center planetary gear and the planetary gear ring are externally meshed, thereby driving the planetary gear ring to rotate, the center rolling element and the planetary rolling element in the planetary gear ring roll on each other, and the other side of the planetary gear ring is meshed with the input gear ring for transmission, the planetary gear ring drives the rotating shaft to rotate around the input shaft, when the rotating shaft rotates, it drives the sleeve to rotate around the input shaft, the sleeve and the rotating shaft can slide against each other in the longitudinal direction, and the sleeve The cylinder pushes the planetary gears to mesh along the output gear ring, the planetary gears drive the output center planetary gears to rotate, the output center planetary gears drive the output transmission member sleeved on the input shaft to rotate, and the output transmission member drives the output shaft to rotate; therefore, the transmission route of the transmission force is: the drive shaft is transmitted to the input shaft, the input shaft is transmitted to the planetary gear ring, the planetary gear ring is transmitted to the rotating shaft, the rotating shaft is transmitted to the planetary rolling members, the input center rolling members and the sleeve, the sleeve is transmitted to the planetary gears, the planetary gears are transmitted to the output center planetary gears, the output center planetary gears are transmitted to the output transmission member, and the output transmission member is transmitted to the output shaft.

[0024] 2. The intangent point of the planetary roller and the planetary gear ring of the present invention is close to the meshing point of the planetary gear ring and the input gear ring. The distance from the axis of the planetary roller to the meshing point is the resistance arm, and the distance from the meshing point of the planetary gear ring and the input gear ring to the meshing point of the planetary gear and the input center planetary gear is the power arm. It can be seen that the power arm is larger than the resistance arm. During transmission, the resistance is small and the power is large, which can save more effort, reduce the load of the driving part, and thus reduce the energy loss of the driving part. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0026] Figure 1 A schematic cross-sectional view of a planetary gear transmission machine of the present invention;

[0027] Figure 2 It is a schematic diagram of the local structure of the present invention;

[0028] Figure 3 It is a structural schematic diagram of the planetary transmission part of the present invention;

[0029] Figure 4 for Figure 3 Schematic diagram of the half-section structure;

[0030] Figure 5 This is a schematic diagram of the structure of the planetary unit;

[0031] Figure 6 for Figure 5 Schematic diagram of the half-section structure;

[0032] Figure 7 It is a structural schematic diagram of the clamp of the present invention;

[0033] Figure 8 It is a structural schematic diagram of the output transmission part of the present invention;

[0034] The names and serial numbers of the components in the figure are: 1-driving part, 2-driving shaft, 3-first bearing, 4-coupling, 5-first input planetary carrier, 6-support shaft, 7-first support cover, 8-first planetary carrier, 9-first bolt, 10-center rolling element, 11-planetary rolling element, 12-planetary gear ring, 13-input gear ring, 14-support member, 15-second planetary carrier, 16-second input planetary carrier, 17-second bolt, 18-output gear ring, 19-planetary gear, 20-third bolt, 21-second support cover, 22-sleeve, 23-rotating shaft, 24-first output planetary carrier, 25-second output planetary carrier, 26-output center planetary gear, 27-output transmission member, 28-concave member, 29-working member, 30-oil seal, 31-second bearing, 32-input center planetary gear, 33-input shaft, 34-output shaft, 35-support seat. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and embodiments. Obviously, the described embodiments are only part of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of the present application.

[0036] like Figure 1-8 As shown, a planetary gear transmission machine includes a drive shaft 2, an input shaft 33, an output shaft 34, an input planetary part and an output planetary part; the input planetary part and the output planetary part are arranged in parallel; the input shaft 33 passes through the input planetary part and the output planetary part, and the input shaft 33 is in driving connection with the input planetary part and is smoothly connected with the output planetary part; the input shaft 33 is in driving connection with the drive shaft 2; the output planetary part is in driving connection with the output shaft 34;

[0037] The input planetary part includes a rotating shaft 23, a supporting shaft 6, an input planetary carrier, a planetary carrier, at least two planetary gear rings 12, an input gear ring 13, at least two planetary rollers 11, a central roller 10 and an input central planetary gear 32; the input planetary carrier is arranged in parallel with the input gear ring 13, and the input planetary gear 32 is arranged at the center of the input gear ring 13; the planetary gear ring 12 is arranged around the input central planetary gear 32, and the planetary gear ring 12 is meshed and driven with the input gear ring 13 and the input central planetary gear 32 respectively; and each planetary gear ring 12 is parallelly provided with a planet carrier; the central rolling element is arranged at the center of the planetary gear ring 12, and is surrounded by planetary rolling elements 11 arranged in a planetary manner; one side of the planetary rolling element 11 rolls circumscribing the central rolling element 10, and the other side of the planetary rolling element 11 rolls inwardly circumscribing the planetary gear ring 12; the planetary rolling element 11 is connected to the planet carrier through a support shaft 6, and one of the planetary rolling elements is connected by a rotating shaft 23, and the rotating shaft 23 sequentially passes through the input planet carrier, the planet carrier, the planetary gear ring 12, and the planetary rolling element to be connected to the output planetary part;

[0038] The output planetary part includes an output planetary carrier, an output gear ring 18, at least two planetary gears 19, an output center planetary gear 26, an output transmission member 27 and a sleeve 22; the output planetary carrier is arranged in parallel with the output gear ring 18; the output center planetary gear 26 is arranged at the center of the output gear ring 18, and the output center planetary gear 26 is surrounded by planetary gears 19 arranged in a planetary manner; the sleeve 22 passes through the planetary gears 19 and is connected to the output planetary carrier, and the sleeve 22 is correspondingly sleeved with the rotating shaft 23; one end of the output transmission member 27 is inserted into the output center planetary gear 26, and is meshed and transmission-connected with the output center planetary gear 26, and the other end of the output transmission member 27 is transmission-connected with the output shaft 34; and the output transmission member 27 is sleeved on the input shaft 33.

[0039] The intangent point of the planetary roller and the planetary gear ring is close to the meshing point of the planetary gear ring and the input gear ring. The distance from the axis of the planetary roller to the meshing point is the resistance arm, and the distance from the meshing point of the planetary gear ring and the input gear ring to the meshing of the planetary gear and the input center planetary gear is the power arm. It can be seen that the power arm is larger than the resistance arm. During transmission, the resistance is small and the power is large, which can save effort, reduce the load of the driving part, and thus reduce the energy loss of the driving part.

[0040] The sleeve 22 and the rotating shaft 23 are smoothly connected, the sleeve 22 can slide axially relative to the rotating shaft 23, and the sleeve 22 can also rotate relative to the axis of the rotating shaft 23; the sleeve 22 and the planetary gear 19 are also smoothly connected, and when the planetary gear 19 rotates around its own axis, the sleeve 22 is not driven to follow the rotation; therefore, the rotation resistance between the rotating shaft 23 and the sleeve 22, and between the sleeve 22 and the planetary gear 19 is effectively reduced.

[0041] The output transmission member 27 is sleeved on the input shaft 33 , and the output transmission member 27 and the input shaft 33 rotate independently without interfering with each other.

[0042] The number of the input planetary parts can be appropriately increased according to transmission requirements, and the increased input planetary parts are arranged in parallel with each other.

[0043] The common number of the planetary gear rings 12 is 2 to 8, and the number generally selected is 2, 4, 6 or 8.

[0044] The common number of the planetary rolling elements 11 is 2 to 8, and the number generally selected is 2, 4, 6 or 8.

[0045] The number of the planetary gears 19 can match the number of the planetary gear rings 12. A rotating shaft 23 is matched and installed between the corresponding planetary gear rings 12 and the planetary gears 19.

[0046] In some embodiments, a support structure is added, such as Figure 1 As shown, a support seat 35, a first support cover 7, a first bolt 9, a second bolt 17, a third bolt 20 and a second support cover 21 are added; the first support cover 7 and the second support cover 21 are arranged in parallel on the support seat 35; the first support cover 7 and the input planetary part are connected by the first bolt 9; the second support cover 21 and the output planetary part are connected by the third bolt 20; the outer edge of the input planetary part and the outer edge of the output planetary part are connected by the second bolt; the drive shaft 2 passes through the first support cover 7; and the output shaft 34 passes through the second support cover 21. The first bolt 9, the second bolt 17 and the third bolt 20 provide strong support for the input gear ring 13 and the output gear ring 18; and can prevent the output gear ring and the input gear ring from rotating during operation.

[0047] In some embodiments, in order to facilitate the transmission connection between the drive shaft and the input shaft, a coupling 4 is additionally installed. Figure 1 As shown, one end of the coupling 4 is connected to the drive shaft 2, and the other end thereof is connected to the input shaft 33. The coupling can facilitate a stable connection between the drive shaft and the input shaft. And the coupling can enable the drive shaft to stably transmit power to the output shaft.

[0048] In some embodiments, a concave member 28 is additionally installed. Figure 1 As shown, one end of the concave member 28 is connected to the output transmission member 27, and the other end is connected to the output shaft 34. The concave member can facilitate the output planetary part to transmit power to the output shaft. At the same time, the concave member 28 can provide a lap support point for the input shaft 33.

[0049] In order to realize that when the input shaft overlaps the concave part, the input shaft and the output shaft rotate independently without interfering with each other; a first bearing 3 is installed in the concave opening of the concave part 28, and the first bearing 3 is used to install one end of the input shaft 33. Under the action of the first bearing 3, the input shaft 33 and the output shaft 34 rotate independently without interfering with each other.

[0050] In order to facilitate the transmission connection between the output transmission member and the concave member, an inner gear ring is provided in the concave opening of the concave member 28; an outer gear ring is provided on the end of the output transmission member 27 connected to the concave member 28; the outer gear ring and the inner gear ring are matched and meshed in transmission connection. The meshing transmission connection between the concave member and the output transmission member can facilitate the transmission stability between the two.

[0051] In some embodiments, in order to facilitate the transmission connection between the output center planetary gear and the output transmission member, a through hole is provided in the center of the output center planetary gear 26, and an inner gear ring is provided in the through hole; an outer gear ring is provided at one end of the output transmission member 27 that is meshed and transmission-connected with the output center planetary gear 26; the outer gear ring is matched with the inner gear ring for meshing and transmission connection.

[0052] In some embodiments, a structure of an output planet carrier is provided. The output planet carrier includes a first output planet carrier 24 and a second output planet carrier 25; the first output planet carrier 24 is arranged in parallel at one end of the output gear ring 18; the second output planet carrier 25 is arranged in parallel at the other end of the output gear ring 18; the first output planet carrier 24 and the second output planet carrier 25 are connected by a sleeve 22.

[0053] In some embodiments, a structural form of an input planet carrier is provided. The input planet carrier includes a first input planet carrier 5 and a second input planet carrier 16; the first input planet carrier 5 is arranged in parallel at one end of the input gear ring 13; the second input planet carrier 16 is arranged in parallel at the other end of the input gear ring 13; the first input planet carrier 5 and the second input planet carrier 16 are connected by a rotating shaft 23.

[0054] In some embodiments, a planet carrier structure is provided. The planet carrier includes a first planet carrier 8 and a second planet carrier 15; the first planet carrier 8 is arranged in parallel at one end of the planetary gear ring 12; the second planet carrier 15 is arranged in parallel at the other end of the planetary gear ring 12; a rotating shaft 23 and a supporting shaft 6 are installed between the first planet carrier 8 and the second planet carrier 15.

[0055] In order to improve the rotation stability, a first bearing 3 and a second bearing 31 are additionally installed; the input planetary carrier and the input shaft 33 are connected through the first bearing 3; one side of the output planetary carrier is connected to the input shaft 33 through the first bearing 3, and the other side thereof is connected to the output transmission member 27 through the second bearing.

[0056] The first support cover 7 and the second support cover 21 are both provided with a first bearing 3. The first bearing 3 on the first support cover 7 is used to install the drive shaft 2; the first bearing 3 on the second support cover 21 is used to install the output shaft 34; thereby effectively improving the transmission accuracy and stability of the drive shaft and the output shaft.

[0057] The first support cover 7 and the second support cover 21 are further provided with an oil seal 30 , which is arranged in parallel with the first bearing 3 on the first support cover and the second support cover 21 . The oil seal 30 on the first support cover 7 is clamped on the drive shaft 2 ; the oil seal 30 on the second support cover 21 is clamped on the output shaft 34 .

[0058] The transmission working mode of the present invention is as follows:

[0059] The driving part 1 drives the driving shaft 2 to rotate, and the driving shaft 2 drives the input shaft 33 to rotate through the coupling 4. The input shaft 33 drives the input center planetary gear 32 to rotate. The input center planetary gear 32 and the planetary gear 12 are externally meshed for transmission, thereby driving the planetary gear ring 12 to mesh and rotate along the inner side of the input gear ring 13. The planetary gear ring 12 drives the rotating shaft 23, the supporting shaft 6, the center rolling element 10, the planetary rolling element 11, the first planetary carrier 8, and the second planetary carrier 15 to rotate. The rotating shaft 8 drives the first input planetary carrier 5 and the second input planetary carrier 16 to rotate, while driving the output planetary gear 1 on the output planetary part. 9 rotates around the input shaft 33, the output planetary gear 19 meshes and rotates along the inner side of the output gear ring 18, and drives the output center planetary gear 26 to rotate through meshing transmission, and the output center planetary gear 26 drives the output transmission member 27 to rotate through meshing transmission, the rotation direction of the output transmission member 27 and the direction of the output shaft 33 are independent of each other and do not interfere with each other, the rotated output transmission member 27 drives the output shaft 34 to rotate, and then the output shaft 34 drives the working member 29 to work; the output planetary gear 19 drives the first output planet carrier 24 and the second output planet carrier 25 to rotate during the rotation along the output gear ring 18.

[0060] The input shaft 33 and the rotating shaft 23 work together to enhance the transmission stability of the overall structure.

[0061] A transmission machine uses the above-mentioned planetary gear transmission machine.

[0062] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the protection scope of the invention.

Claims

1. A planetary gear transmission, characterized in that: It comprises a drive shaft (2), an input shaft (33), an output shaft (34), an input planetary part and an output planetary part; The input planetary unit and the output planetary unit are arranged in parallel; The input shaft (33) passes through the input planetary part and the output planetary part, and the input shaft (33) is drivingly connected to the input planetary part and is smoothly connected to the output planetary part; the input shaft (33) is drivingly connected to the drive shaft (2); The output planetary part is drivingly connected to the output shaft (34); The input planetary part comprises a rotating shaft (23), a supporting shaft (6), an input planetary carrier, a planetary carrier, at least two planetary gear rings (12), an input gear ring (13), at least two planetary rolling elements (11), a central rolling element (10), and an input central planetary gear (32); The input planet carrier is arranged in parallel with the input gear ring (13), and the input center planet gear (32) is arranged at the center of the input gear ring (13); the planet gear ring (12) is arranged around the input center planet gear (32), and the planet gear ring (12) is respectively meshed and transmission-connected with the input gear ring (13) and the input center planet gear (32); and each planet gear ring (12) is arranged in parallel with a planet carrier; The central rolling element is arranged at the center of the planetary gear ring (12), and is surrounded by planetary rolling elements (11) arranged in a planetary pattern; one side of the planetary rolling element (11) rolls circumferentially with the central rolling element (10), and the other side of the planetary rolling element (11) rolls inwardly with the planetary gear ring (12); the planetary rolling element (11) is connected to the planetary carrier via a support shaft (6), and one of the planetary rolling elements is connected via a rotating shaft (23), which sequentially passes through the input planetary carrier, the planetary carrier, the planetary gear ring (12), and the planetary rolling element, and is connected to the output planetary part; The output planetary unit comprises an output planetary carrier, an output gear ring (18), at least two planetary gears (19), an output central planetary gear (26), an output transmission member (27) and a sleeve (22); The output planet carrier is arranged in parallel with the output gear ring (18); The output center planetary gear (26) is arranged at the center of the output gear ring (18), and the output center planetary gear (26) is surrounded by planetary gears (19) arranged in a planetary pattern. The sleeve (22) passes through the planetary gear (19) and is connected to the output planetary carrier, and the sleeve is correspondingly sleeved with the rotating shaft (23); One end of the output transmission member (27) is inserted into the output center planetary gear (26) and meshes with the output center planetary gear (26) for transmission connection, and the other end of the output transmission member (27) is transmission connected to the output shaft (34); and the output transmission member (27) is sleeved on the input shaft (33); It also includes a coupling (4); one end of the coupling (4) is connected to the drive shaft (2), and the other end of the coupling (4) is connected to the input shaft (33); It also includes a concave member (28); one end of the concave member (28) is drivingly connected to the output transmission member (27), and the other end of the concave member (28) is connected to the output shaft (34).

2. The planetary gear transmission according to claim 1, characterized in that: It also includes a support seat (35), a first support cover (7), a first bolt (9), a second bolt (17), a third bolt (20) and a second support cover (21); The first support cover (7) and the second support cover (21) are arranged in parallel on the support seat (35); The first support cover (7) and the input planetary part are connected via a first bolt (9); The second support cover (21) is connected to the output planetary part via a third bolt (20); The outer edge of the input planetary portion and the outer edge of the output planetary portion are connected by a second bolt; The drive shaft (2) passes through the first support cover (7); The output shaft (34) passes through the second support cover (21).

3. The planetary gear transmission according to claim 1, characterized in that: An inner gear ring is provided in the concave opening of the concave member (28); an outer gear ring is provided on one end of the output transmission member (27) connected to the concave member (28); and the outer gear ring and the inner gear ring are matched and meshed for transmission connection.

4. The planetary gear transmission according to claim 1, characterized in that: A through hole is provided in the middle of the output center planetary gear (26), and an inner gear ring is provided in the through hole; an outer gear ring is provided at one end of the output transmission member (27) that is meshed and transmission-connected with the output center planetary gear (26); the outer gear ring is matched with the inner gear ring for meshing and transmission connection.

5. The planetary gear transmission according to any one of claims 1 to 4, characterized in that: The output planet carrier comprises a first output planet carrier (24) and a second output planet carrier (25); The first output planet carrier (24) is arranged in parallel at one end of the output gear ring (18); the second output planet carrier (25) is arranged in parallel at the other end of the output gear ring (18); The first output planet carrier (24) and the second output planet carrier (25) are connected via a sleeve (22).

6. The planetary gear transmission according to claim 5, characterized in that: The input planet carrier comprises a first input planet carrier (5) and a second input planet carrier (16); The first input planet carrier (5) is arranged in parallel at one end of the input gear ring (13); the second input planet carrier (16) is arranged in parallel at the other end of the input gear ring (13); The first input planet carrier (5) and the second input planet carrier (16) are connected via a rotating shaft (23).

7. The planetary gear transmission according to claim 5, characterized in that: The planet carrier comprises a first planet carrier (8) and a second planet carrier (15); The first planet carrier (8) is arranged in parallel at one end of the planetary gear ring (12); the second planet carrier (15) is arranged in parallel at the other end of the planetary gear ring (12); A rotating shaft (23) and a supporting shaft (6) are installed between the first planet carrier (8) and the second planet carrier (15).

8. A transmission machine, characterized in that: Use the planetary gear transmission according to any one of claims 1 to 7.

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