Vertical gear motor and power system

Abstract

The utility model provides a vertical gear motor and a power system, and relates to the technical field of motors. The vertical speed reduction motor comprises a power assembly and a speed reduction assembly. The power assembly is provided with a shell and a first output shaft which is vertically arranged and extends out of the shell. The speed reduction assembly comprises a base, a machine shell and a planetary output wheel set. The base is connected to the top of the shell, the first output shaft penetrates through an assembly part in the center of the base to be in transmission connection with the planetary output wheel set, and the planetary output wheel set is used for outputting power. A cavity used for containing lubricating oil is formed in the base, the bottom wall of the cavity is obliquely arranged, the part, close to the center position, of the bottom wall of the cavity is higher than the part, close to the periphery, of the bottom wall of the cavity, the assembly part extends to the position above the cavity, and a first sealing part is arranged on the end face of the assembly part. The power system provided by the utility model adopts the vertical gear motor. The vertical gear motor and the power system provided by the utility model can improve the problem of high risk of oil leakage at the joint between the motor and the speed reducer.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and in particular to a vertical reduction motor and a power system. Background Art

[0002] Currently, under high-power and high-torque conditions, matching the motor with a reducer is one of the main ways to reduce size and lower costs.

[0003] For application scenarios such as cooling tower fans and large rotating platforms, the output end needs to be driven vertically upward. If a direct-drive motor is used, the requirement for high torque and low-speed output will result in higher costs. If a motor is combined with a reducer to reduce speed and increase torque, the cost can be well controlled. However, this structure has the risk of oil leakage at the connection between the motor and the reducer, and the connection is the high-speed stage of the gear, which further increases the risk of oil leakage. Utility Model Content

[0004] The technical problem solved by the utility model is how to improve the technical problem of high oil leakage risk at the connection between the motor and the reducer in the prior art.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] The utility model provides a vertical reduction motor, comprising:

[0007] A power assembly having a housing and a first output shaft vertically arranged and extending out of the housing;

[0008] A reduction assembly, comprising a base, a housing and a planetary output gear set; the base is connected to the top of the housing, and a vertically arranged assembly is provided on the base; the sun gear in the planetary output gear set is rotatably sleeved on the assembly, and is drivingly connected to the first output shaft passing through the assembly to output power through the planetary output gear set;

[0009] A cavity for containing lubricating oil is provided in the base, and the bottom wall of the cavity is inclined downward in a radially outward direction; an oil discharge port communicating with the cavity is also provided on the base;

[0010] Wherein, the assembly part extends to the top of the cavity, and a first sealing part is provided between the sun gear and the end surface of the assembly part.

[0011] Optionally, the sun gear includes a rotating part, a first meshing part and a second meshing part, the rotating part, the first meshing part and the second meshing part are coaxially arranged, and the first meshing part is located above the second meshing part, and the rotating part is located below the second meshing part; the first meshing part is meshed with the part of the first output shaft passing through the assembly, and the second meshing part is meshed with the planetary gear; an annular protrusion is also provided on the base, the annular protrusion is arranged around the assembly, the cavity is located on the outer periphery of the annular protrusion, and the rotating part is rotatably matched with the annular protrusion through a bearing; wherein the first seal is arranged between the first meshing part and the end face of the assembly.

[0012] Optionally, the inner side protrusion of the first meshing portion forms an annular abutting portion, the abutting portion cooperates with the end surface of the assembly part, and the first sealing member is located between the abutting portion and the end surface of the assembly part.

[0013] Optionally, the planetary output gear set further includes a transition sealing cover, which is connected to the top of the first meshing portion, and the planet carrier in the planetary output gear set is rotationally matched with the transition sealing cover via a bearing.

[0014] Optionally, a second sealing member is provided between the transition sealing cover and the first engaging portion.

[0015] Optionally, an outer periphery of the base is further provided with an enclosure portion, the cavity is formed between the enclosure portion and the annular protrusion, and the oil drain port is opened on the enclosure portion.

[0016] Optionally, a matching hole is provided on the inner side of the sun gear, and the assembly part is arranged in the matching hole; the inner diameter of the matching hole is larger than the outer diameter of the assembly part.

[0017] Optionally, a limiting protrusion is convexly provided on the outer side of the shell, and the limiting protrusion is arranged in a ring shape; a groove is provided at the bottom of the base, and the groove is arranged in a ring shape, and the limiting protrusion is snapped into the groove.

[0018] Optionally, the planet carrier in the planetary output gear set has a vertically arranged second output shaft, and the second output shaft extends to the outside of the casing.

[0019] A power system comprises the vertical reduction motor mentioned above.

[0020] The vertical reduction motor and power system provided by the utility model have the following beneficial effects compared with the prior art:

[0021] In the vertical reduction motor, the power component can be regarded as the motor in the prior art, and the reduction component can be regarded as the reducer in the prior art; wherein, since an assembly part is provided on the base of the reduction component, the assembly part is vertically arranged and located above the cavity, so that the overall height of the assembly part is relatively high, and thus the height of the first seal formed at the connection between the first output shaft of the power component part and the sun gear in the reduction component part is relatively high, so that the height of the seal is much higher than the oil level, which greatly reduces the risk of oil leakage. Based on this, the vertical reduction motor provided by the utility model and the power system using the vertical reduction motor can improve the technical problem of high risk of oil leakage at the connection between the motor and the reducer in the prior art.

[0022] Furthermore, during the operation of the vertical reduction motor, the lubricating oil is contained in the cavity, and because the bottom wall of the cavity is in an inclined state, the lubricating oil is directed to the periphery of the cavity, which can keep the lubricating oil away from the first output shaft, and can reduce the possibility of the lubricating oil leaking from the connection between the planetary output gear set and the first output shaft; and, during the operation of the planetary output gear set, its rotation can splash the lubricating oil to the periphery, which further reduces the oil level of the lubricating oil located at the center of the cavity, and can further prevent the lubricating oil from leaking from the connection between the planetary output gear set and the first output shaft. At the same time, the oil drain port provided on the base can discharge the oil in the cavity, avoid the accumulation of lubricating oil in the cavity, achieve the purpose of reducing the oil level in the cavity, further ensure that the oil level in the cavity is lower than the sealing point, and reduce the risk of oil leakage at the connection between the assembly and the sun gear. Based on this, the vertical reduction motor and the power system using the vertical reduction motor can further improve the technical problem of high risk of oil leakage at the connection between the motor and the reducer in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a structural schematic diagram of the vertical reduction motor provided in the embodiment of the present application;

[0025] Figure 2 It is a schematic cross-sectional structure diagram of the vertical reduction motor provided in the embodiment of the present application;

[0026] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0027] Figure 4 A schematic cross-sectional view of a base provided in an embodiment of the present application;

[0028] Figure 5 A schematic diagram of the structure of the base provided in an embodiment of the present application;

[0029] Figure 6 A schematic diagram of the structure of a housing provided in an embodiment of the present application;

[0030] Figure 7 This is a schematic diagram of the structure of the shell provided in the embodiment of the present application.

[0031] Icons: 10-vertical reduction motor; 1-power assembly; 110-housing; 111-limiting protrusion; 120-first output shaft; 2-reduction assembly; 200-base; 210-assembly part; 211-through hole; 220-annular protrusion; 230-enclosing part; 231-oil drain port; 232-cavity; 240-groove; 300-housing; 301-tooth; 302-observation port; 303-fuel filling port; 400-planetary output gear set; 410-sun gear; 411-first meshing part; 4111-supporting part; 412-second meshing part; 413-rotating part; 420-planetary gear; 430-planet carrier; 431-second output shaft; 440-adaptive sealing cover; 500-first seal; 600-second seal. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0035] In the description of the present utility model, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present utility model.

[0036] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0037] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0038] See also Figure 1 In the embodiment of the present application, a vertical reduction motor 10 is provided, and the vertical reduction motor 10 can be used to output power. Among them, the vertical reduction motor 10 can be applied to application scenarios such as cooling tower fans and large rotating platforms. Of course, the vertical reduction motor 10 can be applied not only to large equipment, but also to small equipment, such as fans or small rotating platforms. It is worth noting that the vertical reduction motor 10 provided in this embodiment can improve the technical problem of high oil leakage risk at the connection between the motor and the reducer in the prior art.

[0039] In this embodiment, please refer to Figure 2 , Figure 3 and Figure 4 , the vertical reduction motor 10 includes a power assembly 1 and a reduction assembly 2. Among them, the power assembly 1 has a housing 110 and a first output shaft 120 that is vertically arranged and extends out of the housing 110; of course, the power assembly 1 is also provided with a stator, a rotor and other structures for realizing the power output of the power assembly 1, which will not be repeated here. The reduction assembly 2 includes a base 200, a housing 300 and a planetary output gear set 400; the base 200 is connected to the top of the housing 110, and the first output shaft 120 passes through the center position of the base 200 and is transmission-connected to the planetary output gear set 400, and the planetary output gear set 400 is used to output power. A cavity 232 for containing lubricating oil is provided in the base 200, and the bottom wall of the cavity 232 is inclined, and the portion of the bottom wall of the cavity 232 close to the center position is higher than the portion of the bottom wall of the cavity 232 close to the periphery. When the lubricating oil and the like are accumulated inside the cavity 232, the bottom wall of the cavity 232 is inclined, so that the lubricating oil flows outward. On the one hand, the lubricating oil and the like can be discharged easily; on the other hand, the lubricating oil and the like can be prevented from gathering in the center, which may increase the risk of oil leakage. In other words, the risk of oil leakage can be further reduced.

[0040] Further, in this embodiment, the base 200 has a vertically arranged assembly part 210, which is arranged at the center of the base 200, and a through hole 211 is opened in the center of the assembly part 210 for the first output shaft 120 to pass through; the sun gear 410 in the planetary output gear set 400 is rotatably sleeved on the assembly part 210, and is transmission-connected with the first output shaft 120 extending from the through hole 211, so as to output power through the planetary output gear set 400. The housing 300 is connected to the base 200, and the inner side of the housing 300 is provided with teeth 301, such as Figure 6 , the planetary gear 420 in the planetary output gear set 400 meshes with the teeth 301 inside the housing 300; the planetary output gear set 400 also has a planet carrier 430. When the first output shaft 120 drives the sun gear 410 to rotate, the planetary gear 420 meshes with the housing 300 through the teeth 301, so that the planetary gear 420 rotates in the housing 300; at the same time, the planetary carrier 430 is driven to rotate, and power can be output through the second output shaft 431 on the planetary carrier 430. Among them, the assembly 210 is located above the cavity 232, and a first sealing member 500 is provided between the end faces of the sun gear 410 and the assembly 210.

[0041] Among them, since the base 200 in the reduction assembly 2 is provided with an assembly part 210, the assembly part 210 is vertically arranged and extends to the top of the cavity 232, so that the overall height of the assembly part 210 is relatively high, and the part where the first output shaft 120 cooperates with the sun gear 410 is the part extending from the through hole 211, which means that the height of the part where the first output shaft 120 cooperates with the sun gear 410 is also relatively high. Based on this, the height of the first seal 500 formed at the connection between the first output shaft 120 of the power component 1 and the sun gear 410 in the reduction assembly 2 is relatively high, so that the height of the sealing part is much higher than the oil level, which greatly reduces the risk of oil leakage. It is worth noting that, under normal circumstances, during the operation of the reduction assembly 2, lubricating oil and the like will flow to the base 200. However, the assembly part 210 is in a vertically arranged state, which can make the sealing part much higher than the oil level, thereby achieving the purpose of reducing the risk of oil leakage.

[0042] At the same time, during the operation of the vertical reduction motor 10, the lubricating oil is contained in the cavity 232, and because the bottom wall of the cavity 232 is inclined downward in the radially outward direction, the lubricating oil is directed to the periphery of the cavity 232, which can keep the lubricating oil away from the first output shaft 120, and reduce the possibility of the lubricating oil leaking from the connection between the planetary output gear set 400 and the first output shaft 120; and during the operation of the planetary output gear set 400, its rotation can cause the lubricating oil to splash to the periphery, which further reduces the oil level of the lubricating oil at the center of the cavity 232, and can further prevent the lubricating oil from leaking from the connection between the planetary output gear set 400 and the first output shaft 120. Based on this, the vertical reduction motor 10 in this embodiment can improve the technical problem of the high risk of oil leakage at the connection between the motor and the reducer in the prior art.

[0043] In this example, see Figure 2 The planet carrier 430 in the planetary output gear set 400 has a second output shaft 431 arranged vertically, and the second output shaft 431 extends outward from the housing 300. This makes the overall output mode of the vertical reduction motor 10 such that the second output shaft 431 outputs power outward vertically, thus realizing vertical power output, which can be adapted to application scenarios such as cooling tower fans and large rotating platforms.

[0044] Optionally, in this embodiment, the sun gear 410 includes a rotating portion 413, a first meshing portion 411 and a second meshing portion 412, the rotating portion 413, the first meshing portion 411 and the second meshing portion 412 are coaxially arranged, and the first meshing portion 411 is located above the second meshing portion 412, and the rotating portion 413 is located below the second meshing portion 412; the first meshing portion 411 is meshed with the portion of the first output shaft 120 extending out of the through hole 211, and the second meshing portion 412 is meshed with the planetary gear 420. In addition, in this embodiment, an annular protrusion 220 is further provided on the base 200, the annular protrusion 220 is arranged around the assembly part 210, the cavity 232 is located at the outer periphery of the annular protrusion 220, and the rotating portion 413 is rotatably matched with the annular protrusion 220 through a bearing; wherein the first sealing member 500 is arranged between the first meshing portion 411 and the end surface of the assembly part 210.

[0045] Based on this, since the annular protrusion 220 is used to form the peripheral wall of the cavity 232, it means that the height of the cavity 232 is equivalent to the height of the annular protrusion 220. However, in the sun gear 410, the height of the rotating portion 413 is equivalent to the height of the annular protrusion 220, which means that the heights of the first meshing portion 411 and the second meshing portion 412 are both higher than the annular protrusion 220, and further means that the first seal 500 located above the first meshing portion 411 is also located above the cavity 232, indicating that the sealing position at the connection between the sun gear 410 and the first output shaft 120 is higher than the oil level of the lubricating oil, which can improve the technical problem of high risk of oil leakage at the connection between the motor and the reducer in the prior art.

[0046] In this embodiment, the inner side of the first meshing portion 411 is convexly provided with an annular abutting portion 4111, and when the first meshing portion 411 is matched with the assembly part 210, the abutting portion 4111 abuts against the end surface of the assembly part 210. The first sealing member 500 is provided between the abutting portion 4111 and the end surface of the assembly part 210.

[0047] It is worth noting that in the present embodiment, in the axial direction of the assembly 210, a space for placing the first seal 500 is formed between the first meshing portion 411 and the assembly 210, that is, a space for placing the first seal 500 is formed between the supporting portion 4111 and the assembly 210, and the axial dimension of the space is specially designed to ensure that the sealing performance of the first seal 500 is not affected by overheating friction. That is to say, during the rotation of the first meshing portion 411, the friction between the first meshing portion 411 and the first seal 500 is relatively weak, and while ensuring that the sealing performance is guaranteed, the failure of the first seal 500 due to frictional overheating can be avoided.

[0048] In addition, in this embodiment, the planetary output gear set 400 further includes a transition sealing cover 440, which is connected to the top of the first meshing portion 411, and the planet carrier 430 in the planetary output gear set 400 is rotatably matched with the transition sealing cover 440 through a bearing.

[0049] Furthermore, a second seal 600 is provided between the transition seal cover 440 and the first meshing portion 411. The second seal 600 realizes sealing between the transition seal cover 440 and the first meshing portion 411, thereby preventing oil leakage from the end of the first output shaft 120 and improving sealing performance.

[0050] In this embodiment, please refer to Figure 4 and Figure 5 The outer periphery of the base 200 is further provided with a blocking portion 230 , and the above-mentioned cavity 232 is formed between the blocking portion 230 and the annular protrusion 220 .

[0051] Furthermore, the enclosure 230 is provided with an oil drain port 231, which is connected to the cavity 232. The oil drain port 231 can be used for the operator to manually drain the oil in the cavity 232. In addition, the housing 300 is also provided with an observation port 302 and a refueling port 303, wherein the observation port 302 is located below the refueling port 303, so that the observation port 302 can conveniently observe the oil level inside the reduction assembly 2, and then it is convenient to judge whether refueling is needed. The refueling port 303 is used for the operator to manually refuel the reduction assembly 2.

[0052] In this embodiment, a matching hole (not marked in the figure) is provided inside the sun gear 410, which is the inner hole of the sun gear, and the assembly part 210 is provided in the matching hole; the inner diameter of the matching hole is larger than the outer diameter of the assembly part 210. Preferably, the inner diameter of the matching hole is slightly larger than the outer diameter of the assembly part 210, thereby facilitating the smooth rotation of the sun gear 410 relative to the assembly part 210 and avoiding friction between the sun gear 410 and the assembly part 210; on the other hand, the space occupied by the sun gear 410 and the assembly part 210 can be minimized, which is conducive to the miniaturization and lightweight of the reduction assembly 2 as a whole.

[0053] Optionally, see Figure 4 and Figure 7 The outer side of the housing 110 is provided with a limiting protrusion 111, which is arranged in an annular shape; the bottom of the base 200 is provided with a groove 240, which is arranged in an annular shape, and the limiting protrusion 111 is inserted into the groove 240. Through the mutual cooperation between the limiting protrusion 111 and the annular groove 240, it can be ensured that the base 200 can be stably assembled on the outer side of the housing 110, thereby improving the overall connection stability of the power component 1 and the reduction component 2, and making the vertical reduction motor 10 present a more compact whole.

[0054] Based on the vertical reduction motor 10 provided above, the embodiment of the present application further provides a power system, which adopts the vertical reduction motor 10. Based on this, the power system can also improve the technical problem of high oil leakage risk at the connection between the motor and the reducer in the prior art.

[0055] In summary, in the vertical reduction motor 10, the power component 1 can be regarded as a motor in the prior art, and the reduction component 2 can be regarded as a reducer in the prior art; wherein, since the base 200 in the reduction component 2 is provided with an assembly part 210, the assembly part 210 is vertically arranged and located above the cavity 232, so that the overall height of the assembly part 210 is relatively high, and thus the height of the first seal 500 formed at the connection between the first output shaft 120 of the power component 1 and the sun gear 410 in the reduction component 2 is relatively high, so that the height of the seal is much higher than the oil level, which greatly reduces the risk of oil leakage. Based on this, the vertical reduction motor 10 in this embodiment can improve the technical problem of high risk of oil leakage at the connection between the motor and the reducer in the prior art. Furthermore, during the operation of the vertical reduction motor 10, the lubricating oil is contained in the cavity 232, and since the bottom wall of the cavity 232 is in an inclined state, the lubricating oil is directed to the periphery of the cavity 232, which can keep the lubricating oil away from the first output shaft 120, and can reduce the possibility of the lubricating oil leaking from the connection between the planetary output gear set 400 and the first output shaft 120; and during the operation of the planetary output gear set 400, its rotation can cause the lubricating oil to splash to the periphery, which further reduces the oil level of the lubricating oil located at the center of the cavity 232, and can further prevent the lubricating oil from leaking from the connection between the planetary output gear set 400 and the first output shaft 120. At the same time, the oil drain port 231 provided on the base 200 can drain the oil in the cavity 232, avoid the accumulation of lubricating oil in the cavity 232, and achieve the purpose of reducing the oil level in the cavity 232, further ensuring that the oil level in the cavity 232 is lower than the sealing part, and reducing the risk of oil leakage at the connection between the assembly 210 and the sun gear 410. Based on this, the vertical reduction motor 10 and the power system using the vertical reduction motor 10 can further improve the technical problem of high oil leakage risk at the connection between the motor and the reducer in the prior art.

[0056] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A vertical reduction motor, characterized in that: include: A power assembly (1) comprises a housing (110) and a first output shaft (120) arranged vertically and extending out of the housing (110); A reduction assembly (2), comprising a base (200), a housing (300) and a planetary output gear set (400); the base (200) is connected to the top of the housing (110), and a vertically arranged assembly part (210) is provided on the base (200); a sun gear (410) in the planetary output gear set (400) is rotatably sleeved on the assembly part (210), and is drivingly connected to the first output shaft (120) passing through the assembly part (210) so as to output power through the planetary output gear set (400); a cavity (232) for accommodating lubricating oil is provided in the base (200), and a bottom wall of the cavity (232) is tilted downward in a radially outward direction; an oil discharge port (231) communicating with the cavity (232) is also provided on the base (200); The assembly part (210) extends to above the cavity (232), and a first sealing member (500) is provided between the sun gear (410) and an end surface of the assembly part (210).

2. The vertical reduction motor according to claim 1, characterized in that: The sun gear (410) comprises a rotating portion (413), a first meshing portion (411) and a second meshing portion (412); the rotating portion (413), the first meshing portion (411) and the second meshing portion (412) are coaxially arranged, and the first meshing portion (411) is located above the second meshing portion (412), and the rotating portion (413) is located below the second meshing portion (412); the first meshing portion (411) meshes with a portion of the first output shaft (120) passing through the assembly (210); The two meshing parts (412) mesh with the planetary gears (420) in the planetary output gear set (400); an annular protrusion (220) is also provided on the base (200), the annular protrusion (220) is arranged around the assembly part (210), the cavity (232) is located at the outer periphery of the annular protrusion (220), and the rotating part (413) is rotatably matched with the annular protrusion (220) through a bearing; wherein the first sealing member (500) is arranged between the first meshing part (411) and the end face of the assembly part (210).

3. The vertical reduction motor according to claim 2, characterized in that: The inner side of the first meshing portion (411) protrudes to form an annular abutting portion (4111), the abutting portion (4111) cooperates with the end face of the assembly part (210), and the first sealing member (500) is located between the abutting portion (4111) and the end face of the assembly part (210).

4. The vertical reduction motor according to claim 2, characterized in that: The planetary output gear set (400) further comprises a transition sealing cover (440), the transition sealing cover (440) being connected to the top of the first meshing portion (411), and the planet carrier (430) in the planetary output gear set (400) and the transition sealing cover (440) being rotationally matched via a bearing.

5. The vertical reduction motor according to claim 4, characterized in that: A second sealing member (600) is provided between the transition sealing cover (440) and the first engaging portion (411).

6. The vertical reduction motor according to claim 2, characterized in that: The outer periphery of the base (200) is also provided with a blocking portion (230), the cavity (232) is formed between the blocking portion (230) and the annular protrusion (220), and the oil drain port (231) is opened on the blocking portion (230).

7. The vertical reduction motor according to claim 1, characterized in that: A matching hole is provided on the inner side of the sun gear (410), and the assembly part (210) is arranged in the matching hole; the inner diameter of the matching hole is larger than the outer diameter of the assembly part (210).

8. The vertical reduction motor according to claim 1, characterized in that: A limiting protrusion (111) is convexly provided on the outer side of the shell (110), and the limiting protrusion (111) is arranged in an annular shape; a groove (240) is provided at the bottom of the base (200), and the groove (240) is arranged in an annular shape, and the limiting protrusion (111) is snapped into the groove (240).

9. The vertical reduction motor according to claim 1, characterized in that: The planet carrier (430) in the planetary output gear set (400) has a second output shaft (431) arranged vertically, and the second output shaft (431) extends to the outside of the housing (300).

10. A power system, characterized in that: It comprises a vertical reduction motor (10) as claimed in any one of claims 1 to 9.

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