Planetary transmission assembly and planetary reducer

Abstract

The embodiment of the invention discloses a planetary transmission assembly and a planetary reducer. The planetary transmission assembly comprises a planet carrier, a planet wheel, a bearing and a planet wheel shaft. The planetary gear shaft comprises an axial hole penetrating through the planetary gear shaft and a radial hole formed in the radial direction of the planetary gear shaft, in the working process of the planetary reducer, along with rotation of the planetary carrier, the planetary gear shaft can move between the high position and the low position, and when the planetary gear shaft is located at the low position, the planetary gear shaft can be immersed in an oil pool; oil in the oil pool can enter the planet wheel shaft through the radial hole and the axial hole, when the planet wheel shaft rotates to a high position, lubricating oil stored in the planet wheel shaft can be supplied to a bearing under the action of centrifugal force to complete lubrication of the bearing, and when the planet wheel shaft operates to a low position, the lubricating oil can return to the oil pool to complete lubrication of the bearing. On the basis of continuous rotation of the planet carrier, the bearing can be continuously lubricated, lubricating oil can be circulated, and the lubricating effect of the bearing can be greatly improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of reducers, and in particular to a planetary transmission assembly and a planetary reducer. Background Art

[0002] The planetary reducer for mining is a power transmission mechanism. The epicyclic gear train is mainly composed of planetary gears, sun gears and planet carriers. As an important component of the planetary reducer, the planetary transmission assembly has the characteristics of large transmission power and high load-bearing capacity. Due to the harsh working conditions, bearing lubrication and cooling are more difficult problems in the planetary transmission assembly of the mining reducer. In order to ensure the operating accuracy and service life of the planetary gears, it is necessary to ensure that the bearings in the planetary transmission assembly can be well lubricated. At present, the bearing rolling elements in the planetary transmission assembly of the mining reducer have problems such as bearing burns due to inadequate and incomplete lubrication. The bearing life is directly related to the life of the reducer. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] To this end, a first aspect of the present invention provides a planetary transmission assembly.

[0005] A second aspect of the present invention provides a planetary reducer.

[0006] In view of this, according to a first aspect of an embodiment of the present application, a planetary transmission assembly is provided, comprising: Planet carrier; A planetary gear connected to the planetary carrier; A bearing and a planetary gear shaft, wherein the bearing is connected to the planetary gear, and the planetary gear shaft passes through the bearing; The planetary gear shaft comprises an axial hole penetrating the planetary gear shaft and a plurality of radial holes radially opened along the planetary gear shaft and connected to the axial hole, and some of the plurality of radial holes face the bearing.

[0007] In a feasible implementation manner, an oil inlet hole is formed on the planet carrier, and some of the radial holes among the plurality of radial holes are connected to the oil inlet hole.

[0008] In a feasible implementation manner, an arc-shaped recessed area is formed at the connection point between the oil inlet hole and the radial hole.

[0009] In a feasible implementation manner, the planetary transmission assembly further includes: The oil pool is configured such that as the planet carrier rotates, when the bearing and the planetary gear shaft are in a low position, the planetary gear shaft is immersed in the oil pool, and when the bearing and the planetary gear shaft are in a high position, the planetary gear shaft is outside the oil pool.

[0010] In a feasible implementation manner, the planetary transmission assembly further includes: A limiting ring, wherein the inner wall of the planetary gear shaft is formed with an annular groove at the end of the axial hole, and the limiting ring is clamped in the annular groove.

[0011] In a feasible implementation manner, the limiting ring includes a closed end and a flared end, and the closed end is arranged toward the axial hole.

[0012] In a feasible implementation manner, the limiting ring includes a retaining ring and a washer, and the inner diameter of the washer is smaller than the inner diameter of the retaining ring.

[0013] In a feasible implementation manner, the radial hole includes a closed end and a flared end, the closed end is arranged toward the bearing, and the flared end leads to the axial hole.

[0014] In a feasible implementation manner, the axial hole is a variable diameter hole, and the diameter of the middle area of ​​the axial hole is greater than the diameters of the two ends of the axial hole.

[0015] According to a second aspect of an embodiment of the present application, a planetary reducer is provided, comprising: A planetary transmission assembly as described in any of the above technical solutions; A driving member is connected to the planet carrier and is used to drive the planet carrier to rotate.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects: The planetary transmission assembly provided in the embodiment of the present application includes a planetary carrier, planetary wheels, bearings and planetary wheel shafts. The planetary transmission assembly can be used as a component of a planetary reducer for transmission. Furthermore, the planetary gear shaft includes an axial hole that passes through the planetary gear shaft and a plurality of radial holes that are opened radially along the planetary gear shaft and lead to the axial hole. Some of the radial holes are oriented towards the bearing. Based on this, during the operation of the planetary reducer, as the planet carrier rotates, the planetary gear shaft will move between a high position and a low position. When the planetary gear shaft is in a low position, the planetary gear shaft can be immersed in the oil pool, and the oil in the oil pool can enter the planetary gear shaft through the radial holes and the axial holes. When the planetary gear shaft rotates to a high position, the lubricating oil stored in the planetary gear shaft will be supplied to the bearing under the action of centrifugal force to complete the lubrication of the bearing. When the planetary gear shaft runs to a low position, the lubricating oil can return to the oil pool. Based on this, as the planet carrier continues to rotate, the bearing can be continuously lubricated, and the lubricating oil can be circulated, which can greatly improve the lubrication effect of the bearing, so that the planetary reducer using the planetary transmission assembly can be well lubricated. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings: Figure 1 A schematic structural diagram of a planetary gear shaft of a planetary transmission assembly according to an embodiment of the present application; Figure 2 A schematic structural diagram of a planetary gear shaft and a limiting ring of a planetary transmission assembly according to an embodiment of the present application; Figure 3 A schematic structural diagram of a working state of a planetary transmission assembly of an embodiment provided in the present application; Figure 4 for Figure 3 Schematic diagram of the cross section in the AA direction; Figure 5 A schematic structural diagram of an oil inlet state of a planetary transmission assembly according to an embodiment of the present application; Figure 6 A schematic structural diagram of another working state of a planetary transmission assembly according to an embodiment of the present application; Figure 7 A schematic structural diagram of the oil outlet state of a planetary transmission assembly according to an embodiment of the present application.

[0018] in, Figures 1 to 7 The corresponding relationship between the reference numerals and the component names is as follows: 110 planet carrier, 120 planet gear, 130 bearing, 140 planet gear shaft, 150 limit ring; 111 is an oil inlet hole, 112 is an arc-shaped recessed area, 141 is an axial hole, 142 is a radial hole, 143 is an annular groove, 151 is a retaining ring, and 152 is a gasket. DETAILED DESCRIPTION

[0019] In order to better understand the above-mentioned technical scheme, the technical scheme of the embodiments of the present application is described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical scheme of the embodiments of the present application, rather than limitations on the technical scheme of the present application. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments may be combined with each other.

[0020] like Figures 1 to 7 As shown, according to the first aspect of an embodiment of the present application, a planetary transmission assembly is proposed, comprising: a planet carrier 110; a planetary gear 120, the planetary gear 120 being connected to the planet carrier 110; a bearing 130 and a planetary gear shaft 140, the bearing 130 being connected to the planetary gear 120, and the planetary gear shaft 140 passing through the bearing 130; wherein the planetary gear shaft 140 comprises an axial hole 141 passing through the planetary gear shaft 140 and a plurality of radial holes 142 radially opened along the planetary gear shaft 140 and connected to the axial hole 141, and some of the plurality of radial holes 142 are oriented toward the bearing 130.

[0021] The planetary transmission assembly provided in the embodiment of the present application includes a planetary carrier 110, a planetary gear 120, a bearing 130 and a planetary gear shaft 140. The planetary transmission assembly can be used as a component of a planetary reducer for transmission. Furthermore, the planetary gear shaft 140 includes an axial hole 141 that passes through the planetary gear shaft 140 and a plurality of radial holes 142 that are opened radially along the planetary gear shaft 140 and lead to the axial hole 141. Some of the radial holes 142 are oriented toward the bearing 130. Based on this, during the operation of the planetary reducer, as the planetary carrier 110 rotates, the planetary gear shaft 140 will move between a high position and a low position. When the planetary gear shaft 140 is in a low position, the planetary gear shaft 140 can be immersed in the oil pool, and the oil in the oil pool can pass through the radial holes 142 and the axial holes 141. Entering into the planetary shaft 140, when the planetary shaft 140 rotates to a high position, the lubricating oil stored in the planetary shaft 140 will be supplied to the bearing 130 under the action of centrifugal force to complete the lubrication of the bearing 130, and when the planetary shaft 140 runs to a low position, the lubricating oil can return to the oil pool. Based on this, as the planetary carrier 110 continues to rotate, the bearing 130 can be continuously lubricated, and the lubricating oil can be circulated, which can greatly improve the lubrication effect of the bearing 130, so that the planetary reducer using the planetary transmission assembly can be well lubricated.

[0022] like Figures 1 to 7 As shown, in a feasible implementation manner, an oil inlet hole 111 is formed on the planet carrier 110 , and some of the radial holes 142 among the plurality of radial holes 142 are connected to the oil inlet hole 111 .

[0023] In this technical solution, a style of the planetary carrier 110 is further provided, and an oil inlet hole 111 can be formed on the planetary carrier 110, and some of the radial holes 142 in the plurality of radial holes 142 are connected to the oil inlet hole 111. Based on this, when the planetary gear shaft 140 is in a low position, the lubricating oil in the oil pool can enter the radial holes 142 through the oil inlet hole 111, and finally gather in the axial hole 141, so that more lubricating oil can be gathered in the axial hole 141, and then when the planetary gear shaft 140 is in a high position, more lubricating oil will be supplied to the bearing 130, which can improve the lubrication effect of the bearing 130.

[0024] like Figures 1 to 7 As shown, in a feasible implementation manner, an arc-shaped recessed area 112 is formed at the connection point between the oil inlet hole 111 and the radial hole 142 .

[0025] In this technical solution, a style of the oil inlet hole 111 is further provided, and an arc-shaped recessed area 112 is formed at the connection between the oil inlet hole 111 and the radial hole 142, based on which more lubricating oil can be collected in the axial hole 141, and then when the planetary gear shaft 140 is in a high position, more lubricating oil will be supplied to the bearing 130, which can improve the lubrication effect of the bearing 130.

[0026] like Figures 1 to 7 As shown, in a feasible embodiment, the planetary transmission assembly also includes: an oil pool. As the planet carrier 110 rotates, when the bearing 130 and the planetary shaft 140 are in a low position, the planetary shaft 140 is immersed in the oil pool, and when the bearing 130 and the planetary shaft 140 are in a high position, the planetary shaft 140 is outside the oil pool.

[0027] In this technical solution, the planetary transmission assembly may further include an oil pool, through which lubricating oil can be provided for lubricating the bearing 130. Based on this, during the operation of the planetary reducer, as the planet carrier 110 rotates, the planetary shaft 140 moves between a high position and a low position. When the planetary shaft 140 is in a low position, the planetary shaft 140 can be immersed in the oil pool, and the oil in the oil pool can enter the planetary shaft 140 through the radial hole 142 and the axial hole 141. When the planetary shaft 140 rotates to a high position, the lubricating oil stored in the planetary shaft 140 is supplied to the bearing 130 under the action of centrifugal force to complete the lubrication of the bearing 130. When the planetary shaft 140 runs to a low position, the lubricating oil can return to the oil pool. Based on this, as the planet carrier 110 continues to rotate, the bearing 130 can be continuously lubricated, and the lubricating oil can be circulated, which can greatly improve the lubrication effect of the bearing 130, so that the planetary reducer using the planetary transmission assembly can be well lubricated.

[0028] like Figures 1 to 7 As shown, in a feasible implementation manner, the planetary transmission assembly further includes: a limiting ring 150 , an annular groove 143 is formed on the inner wall of the planetary shaft 140 at the end of the axial hole 141 , and the limiting ring 150 is clamped in the annular groove 143 .

[0029] In this technical solution, considering that when the lubricating oil enters the axial hole 141, the lubricating oil may flow out through the axial hole 141, based on this, the planetary transmission assembly can also include a limiting ring 150, and the inner wall of the planetary shaft 140 is formed with an annular groove 143 at the end of the axial hole 141, and the limiting ring 150 is clamped in the annular groove 143. Based on this, under the action of the limiting ring 150, it can not only ensure that the lubricating oil smoothly enters the axial hole 141, but also reduce the probability of the lubricating oil flowing into the axial hole 141 and then flowing out through the axial hole 141, so that more lubricating oil can be gathered in the axial hole 141, and the lubrication effect can be improved.

[0030] In a feasible implementation manner, the limiting ring 150 includes a closed end and a flared end, and the closed end is arranged toward the axial hole 141 .

[0031] In this technical solution, a style of a limit ring 150 is further provided. The limit ring 150 may include a closed end and a flared end. The closed end is arranged toward the axial hole 141. Based on the arrangement of the flared end, when the planetary gear shaft 140 is in the oil pool, it is easier for the lubricating oil to flow into the axial hole 141 through the axial hole 141. By forming the closed end, the probability of the lubricating oil flowing out through the axial hole 141 can be further reduced, so that more lubricating oil can be supplied to the bearing 130, thereby improving the lubrication effect.

[0032] In a feasible implementation manner, the limiting ring 150 includes a retaining ring 151 and a washer 152 , and the inner diameter of the washer 152 is smaller than the inner diameter of the retaining ring 151 .

[0033] In this technical solution, a structural composition of a limit ring 150 is further provided. The limit ring 150 may include a retaining ring 151 and a gasket 152. This facilitates the assembly of the limit ring 150 into the annular groove 143 and can reduce the probability of the limit ring 150 loosening, making the planetary transmission assembly work more stably.

[0034] In a feasible implementation manner, the radial hole 142 includes a closed end and a flared end, the closed end is disposed toward the bearing 130 , and the flared end leads to the axial hole 141 .

[0035] In this technical solution, the style of the radial hole 142 is further improved. The radial hole 142 includes a closed end and a flared end. The closed end is arranged toward the bearing 130, and the flared end is connected to the axial hole 141. Based on this, more lubricating oil can be collected into the axial hole 141 through the radial hole 142. When the lubricating oil is collected into the axial hole 141 through the radial hole 142, the inflow speed of the lubricating oil can be increased. When the lubricating oil is output to the bearing 130 through the radial hole 142, the output area of ​​the lubricating oil can be increased, and the contact area between the lubricating oil and the bearing 130 can be increased.

[0036] In a feasible implementation manner, the axial hole 141 is a variable diameter hole, and the diameter of the middle area of ​​the axial hole 141 is greater than the diameters of the two ends of the axial hole 141 .

[0037] In this technical solution, the style of the axial hole 141 is further improved. The axial hole 141 is a variable diameter hole. The diameter of the middle area of ​​the axial hole 141 is larger than the diameter of the two ends of the axial hole 141. Based on this, the axial hole 141 can have a larger accommodating space and can accommodate more lubricating oil, thereby improving the lubrication effect.

[0038] According to a second aspect of an embodiment of the present application, a planetary reducer is proposed, comprising: a planetary transmission assembly as in any of the above technical solutions; and a driving member, the driving member being connected to the planet carrier 110 and being used to drive the planet carrier 110 to rotate.

[0039] The planetary reducer provided in the embodiment of the present application includes a planetary transmission assembly as in any of the above-mentioned technical solutions, and therefore the planetary reducer has all the beneficial effects of the planetary transmission assembly of the above-mentioned technical solutions.

[0040] The planetary reducer provided in the embodiment of the present application, the planetary transmission assembly includes a planet carrier 110, a planetary gear 120, a bearing 130 and a planetary shaft 140, the planetary shaft 140 includes an axial hole 141 that passes through the planetary shaft 140 and a plurality of radial holes 142 that are opened radially along the planetary shaft 140 and lead to the axial hole 141, some of the radial holes 142 are oriented toward the bearing 130, based on this, during the operation of the planetary reducer, as the planet carrier 110 rotates, the planetary shaft 140 will move between a high position and a low position, and when the planetary shaft 140 is in a low position, the planetary shaft 140 can be immersed When the planetary gear shaft 140 is not in the oil pool, the oil in the oil pool can enter the planetary gear shaft 140 through the radial hole 142 and the axial hole 141. When the planetary gear shaft 140 rotates to a high position, the lubricating oil stored in the planetary gear shaft 140 will be supplied to the bearing 130 under the action of centrifugal force to complete the lubrication of the bearing 130. When the planetary gear shaft 140 runs to a low position, the lubricating oil can return to the oil pool. Based on this, as the planetary carrier 110 continues to rotate, the bearing 130 can be continuously lubricated, and the lubricating oil can be circulated, which can greatly improve the lubrication effect of the bearing 130 and enable the planetary reducer to be well lubricated.

[0041] In some examples, the drive member may be a sun gear.

[0042] Example like Figures 1 to 7As shown, an embodiment of the present application provides a planetary transmission assembly, including: a planet carrier 110; a planetary wheel 120, the planetary wheel 120 is connected to the planet carrier 110; a bearing 130 and a planetary wheel shaft 140, the bearing 130 is connected to the planetary wheel 120, and the planetary wheel shaft 140 passes through the bearing 130; wherein the planetary wheel shaft 140 includes an axial hole 141 that passes through the planetary wheel shaft 140 and a plurality of radial holes 142 that are radially opened along the planetary wheel shaft 140 and connected to the axial hole 141, and some of the plurality of radial holes 142 are oriented toward the bearing 130.

[0043] In this embodiment, the planetary transmission assembly has an axial hole 141 and five radial holes 142 on the planetary shaft 140. Two annular grooves 143 are respectively provided at both ends of the axial hole 141. The flat washer 152 and the retaining ring 151 are inserted into the annular grooves 143 at both ends of the planetary shaft 140. When the planetary reducer is running, the state of the planetary transmission assembly is as follows: Figure 3 When the planetary transmission assembly is immersed in the oil pool of the box, the oil flows like Figure 5 As shown, the lubricating oil can stay in the axial hole 141 of the planetary gear shaft 140 to form an "oil retention area"; as the planetary transmission assembly moves in a circular motion, the planetary gear shaft 140 moves to a non-oil pool state (such as Figure 6 As shown in the figure, the oil in the "oil storage area" in the axial hole 141 will be thrown into the radial hole 142 of the planetary shaft 140 due to centrifugal motion, and then flow into the bearing 130 to lubricate the rolling elements. After playing the lubricating role, it splashes into the oil pool, and the oil is briefly cooled during the splashing process.

[0044] Among them, on the planet carrier 110, Figure 3 As shown in the figure, an arc-shaped concave area 112 is formed at the connection between the oil inlet hole 111 and the radial hole 142 as an oil storage tank, and its number is the same as the number of planetary gears 120 (3 or 4). Figure 3 When the reducer is in the position state, the oil storage tank stores oil and is connected with the axial hole 141 of the planetary shaft 140. The oil is collected in the "oil storage area" in the hole of the planetary shaft 140. When the reducer operates normally in a circular motion and the planetary transmission assembly makes a rotary motion and leaves the oil pool, similarly, the oil in the oil storage area is thrown into the planetary shaft 140 bearing 130 along the radial hole 142 under the centrifugal force, which plays a role of lubrication and cooling.

[0045] The planetary transmission assembly provided in the embodiment of the present application has oil storage tanks uniformly arranged on the planet carrier 110 with the same number as the planetary wheels 120, and a structure of "flat washers 152 + retaining rings 151" is assembled at both ends of the axial hole 141 of the planetary wheel shaft 140 to form an "oil retention area" and an "oil storage area" in the axial hole 141. The centrifugal force of the rotational motion is used to make the oil in the oil storage area flow into the planetary wheel shaft 140 bearing 130 group through the radial hole 142, thereby playing a good and effective lubrication role, thereby extending the service life of the bearing 130 and the entire machine.

[0046] The planetary transmission assembly provided in the embodiment of the present application not only effectively lubricates, but also allows the oil in the oil pool to circulate effectively, allowing the oil to be briefly cooled during the circulation process. The design of the planetary reducer using self-oil storage to lubricate the planetary transmission assembly effectively extends the service life of the bearing 130 and the entire machine.

[0047] The planetary transmission assembly provided in the embodiment of the present application optimizes the design of the planetary wheel shaft 140 and the planetary carrier 110 so that the oil can stay and flow smoothly, thereby achieving the purpose of lubricating and cooling the bearing 130 group inside the planetary wheel 120 and extending the service life.

[0048] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front” and “back” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.

[0050] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0051] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, 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 planetary transmission assembly, characterized in that: include: Planet carrier; A planetary gear connected to the planetary carrier; A bearing and a planetary gear shaft, wherein the bearing is connected to the planetary gear, and the planetary gear shaft passes through the bearing; The planetary gear shaft comprises an axial hole penetrating the planetary gear shaft and a plurality of radial holes radially opened along the planetary gear shaft and connected to the axial hole, and some of the plurality of radial holes face the bearing.

2. The planetary transmission assembly according to claim 1, characterized in that: An oil inlet hole is formed on the planet carrier, and some of the radial holes are connected to the oil inlet hole.

3. The planetary transmission assembly according to claim 1, characterized in that: An arc-shaped recessed area is formed at the connection point between the oil inlet hole and the radial hole.

4. The planetary transmission assembly according to claim 1, characterized in that: Also includes: The oil pool is configured such that as the planet carrier rotates, when the bearing and the planetary gear shaft are in a low position, the planetary gear shaft is immersed in the oil pool, and when the bearing and the planetary gear shaft are in a high position, the planetary gear shaft is outside the oil pool.

5. The planetary transmission assembly according to claim 1, characterized in that: Also includes: A limiting ring, wherein the inner wall of the planetary gear shaft is formed with an annular groove at the end of the axial hole, and the limiting ring is clamped in the annular groove.

6. The planetary transmission assembly according to claim 5, characterized in that: The limiting ring includes a closed end and a flared end, and the closed end is arranged toward the axial hole.

7. The planetary transmission assembly according to claim 5, characterized in that: The limiting ring includes a retaining ring and a washer, and the inner diameter of the washer is smaller than the inner diameter of the retaining ring.

8. The planetary transmission assembly according to any one of claims 1 to 7, characterized in that: The radial hole includes a closed end and a flared end, the closed end is arranged toward the bearing, and the flared end leads to the axial hole.

9. The planetary transmission assembly according to any one of claims 1 to 7, characterized in that: The axial hole is a variable diameter hole, and the diameter of the middle area of ​​the axial hole is greater than the diameters of the two ends of the axial hole.

10. A planetary reducer, characterized in that: include: A planetary transmission assembly as claimed in any one of claims 1 to 9; A driving member is connected to the planet carrier and is used to drive the planet carrier to rotate.

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