Planetary speed reducer with convenient lubricating oil addition

Abstract

A kind of planetary reducer of convenient lubricating oil addition, the present application relates to planetary gear reducer technical field, the input shaft is threaded and is screwed on one end wall of casing, sun gear is fixedly arranged on input shaft, and sun gear is inserted in ring gear, the output shaft is threaded and is screwed on the other end wall of casing, and output shaft is fixedly provided with planet carrier, planet gear is rotated and is set on planet carrier by pivot, gear shifting limiting mechanism is arranged on casing, scraper is fixedly arranged on the end wall of ring gear, ring gear is rotated and is set in casing by bearing, oil inlet is threaded and fixed on the right end wall of casing, oil outlet is threaded and fixed on the left end wall of casing;It will ring gear and planet carrier are all set as movable structure, while setting corresponding adjustable limiting structure, and setting the cleaning structure matched with the inner wall of casing on ring gear, from the individual convenient in the replacement of the oil in speed reducer the cleaning of inner wall of casing is carried out, and the working procedure when replacing oil is optimized.

Description

Technical Field

[0001] This invention relates to the field of planetary gear reducer technology, and more specifically to a planetary reducer that is easy to add lubricating oil to. Background Technology

[0002] Planetary gear reducers form a reduction system through a central sun gear, surrounding planetary gears, and an outermost ring gear. Planetary gear reducers offer the advantage of a small reduction ratio between meshing gears, but a large overall system reduction ratio. This solves the problem of meshing gears failing to engage when the reduction ratio is large. Furthermore, planetary gear reducers feature a compact overall structure and strong system stability. Existing planetary reducers inject oil into the housing during operation to increase gear lubrication, but this oil needs to be changed after a certain period. Traditional oil changes require disassembling and cleaning the entire reducer before replacing the oil, making maintenance cumbersome. Therefore, the existing planetary reducer structure needs improvement to facilitate oil changes and maintenance. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a planetary reducer that facilitates the addition of lubricating oil. This reducer features movable structures for both the ring gear and planetary carrier, along with corresponding adjustable limiting structures. Furthermore, a cleaning structure that engages with the inner wall of the housing is provided on the ring gear. This allows for convenient cleaning of the inner wall of the housing when changing the reducer's oil, thus optimizing the workflow during oil changes.

[0004] To achieve the above objectives, the present invention adopts the following technical solutions:

[0005] It comprises a housing, a sun gear, planetary gears, and a ring gear. The ring gear is housed within the housing. An input shaft is screwed through and threaded onto one end wall of the housing. The sun gear is fixedly mounted on the input shaft and inserted into the ring gear. An output shaft is screwed through and threaded onto the other end wall of the housing. A planetary carrier is fixedly mounted on the output shaft. Planetary gears are screwed onto the planetary carrier via rotating shafts and are positioned between the sun gear and the ring gear. Each planetary gear meshes with both the sun gear and the ring gear. It also includes:

[0006] A shift limit mechanism is provided on the engine housing, and the shift limit mechanism is configured to cooperate with the ring gear and the planetary carrier.

[0007] The scraper blades are arranged in groups of several and in two groups. The scraper blades are fixedly mounted on the end wall of the ring gear, and the ring gear is screwed into the housing through bearings.

[0008] The oil inlet is fixed to the right end wall of the housing.

[0009] The oil outlet is fixed to the left end wall of the housing.

[0010] During normal operation, when the planetary reducer is in use, the ring gear is fixed by the shifting limit mechanism, and the planetary carrier is in an active state. The input shaft rotates, and through the reduction transmission of the sun gear and planetary gears, it drives the planetary carrier to rotate, which in turn drives the output shaft to rotate. When changing the oil, the planetary carrier is fixed by the shifting limit mechanism, which also limits the planetary gears. At this time, the output shaft is not rotated, and the input shaft rotates through the sun gear and planetary gears, which in turn drives the ring gear to rotate. The ring gear drives the scraper to scrape and clean the inner wall of the housing. At the same time, new oil is injected through the oil inlet and old oil is discharged through the oil outlet. The slag scraped off by the scraper is also discharged through the oil outlet.

[0011] Preferably, the shift limiting mechanism includes:

[0012] The guide groove is fixedly installed on the upper side wall of the housing;

[0013] The connecting frame is slidably disposed in the guide groove and is movably mounted on the outside of the housing;

[0014] Two sealing plugs are provided, which are fixedly installed at the left and right ends of the connecting frame, and the sealing plugs on the left and right sides are respectively movably inserted into the end walls of the machine housing.

[0015] Positioning sleeves, wherein there are two positioning sleeves, one of which is fixedly installed on the end wall of the planetary carrier facing the right sealing plug, and the other positioning sleeve is fixedly installed on the end wall of the ring gear facing the left sealing plug.

[0016] The positioning pin is fixedly installed on the end wall of the sealing plug facing the positioning sleeve.

[0017] In use, the sliding connecting bracket drives the sealing plug to move, which in turn drives the positioning pin to move. This allows the positioning pin to be inserted into or removed from the positioning sleeve. When limiting the ring gear, the positioning pin on one side of the ring gear is inserted into the positioning sleeve on the ring gear. At this time, the positioning pin on the planetary carrier side is disengaged from the positioning sleeve, thus limiting the ring gear and allowing the planetary carrier to move. Alternatively, when limiting the planetary carrier, the sliding connecting bracket allows the positioning pin on one side of the planetary carrier to be inserted into the positioning sleeve on the planetary carrier.

[0018] Preferably, the positioning sleeve fixed on the end wall of the ring gear has a guide opening on its side wall, a guide plate is fixedly provided on the side of the guide opening of the positioning sleeve, and a storage groove is provided on the side wall of the positioning pin on the left sealing plug, and a paddle is fixedly provided in the storage groove of the positioning pin.

[0019] When in use, if the positioning pin is inserted into the positioning sleeve on the ring gear and the two cannot be properly aligned, first move the corresponding positioning pin so that it is on the same plane as the positioning sleeve on the ring gear. Then temporarily fix the output shaft. At this time, the input shaft rotates and drives the ring gear to rotate. In turn, the ring gear drives the positioning sleeve on it to rotate, so that the positioning pin corresponding to the positioning sleeve slides into the positioning sleeve from the guide port on the positioning sleeve. At this time, the paddle on the positioning pin pops out and locks into the positioning sleeve, thus completing the connection between the positioning pin and the positioning sleeve, which limits the ring gear.

[0020] Preferably, a positioning mark is fixedly provided on the side wall outside the housing on the output shaft, and the positioning mark is configured to cooperate with the positioning sleeve on the planetary carrier.

[0021] Preferably, a support shaft is screwed onto the inner wall of the housing via a bearing, and the support shaft is connected to the input shaft via a gear set. A support frame is screwed onto the input shaft via a bearing, and the upper end of the support frame is fixedly mounted on the sealing plug on the left side. A drive shaft is screwed onto the lower end of the support frame via a bearing, and a propeller blade is fixedly mounted on the drive shaft. The drive shaft and the support shaft are connected via a clutch assembly.

[0022] When in use, if the planetary carrier is fixed in place and the engine oil is changed, the connecting bracket moves the support bracket through the sealing plug. The support bracket then moves the drive shaft, allowing the drive shaft and support shaft to engage and transmit power through the clutch assembly. When the input shaft rotates, it drives the ring gear to rotate. The input shaft then drives the support shaft to rotate through the gear set, which in turn drives the drive shaft to rotate. The drive shaft then drives the turbine blades to rotate. At this time, the turbine blades agitate the engine oil in the housing and simultaneously push the oil towards the oil outlet, thus assisting in the oil change.

[0023] Preferably, the clutch assembly comprises:

[0024] Sub-end face gear disk, wherein the sub-end face gear disk is fixedly mounted on the drive shaft;

[0025] The female end face gear disk is fixedly mounted on the support shaft, and the female end face gear disk and the male end face gear disk are meshed with each other.

[0026] Preferably, a support sleeve is fixedly mounted on the planetary carrier, and the end of the input shaft located on one side of the planetary carrier is screwed into the support sleeve via a bearing.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] 1. This planetary reducer sets both the ring gear and the planet carrier as movable structures. By setting two sets of movable locating pins and locating sleeves, it can switch between two states: the planet carrier rotates while the gear is switched and the planet carrier is rotated, or the gear is switched and the planet carrier is switched. This allows for switching between two states: changing the transmission output of the device or changing the oil.

[0029] 2. A scraper is installed on the ring gear, so that the working state of the device for changing the oil is switched when the ring gear rotates, thereby achieving the cleaning of the inner wall of the machine housing by the scraper when changing the oil;

[0030] 3. In conjunction with the connecting frame that moves when the device switches working states, a support frame is set on the sealing plug, and a propeller blade is set on the support frame. Thus, when changing the oil, the propeller blades can be used to stir the oil in the housing and push the oil flow in one direction through the transmission docking between the input shaft and the drive shaft. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the present invention.

[0032] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure.

[0033] Figure 3 This is a schematic diagram of the gear shifting positioning mechanism in this invention.

[0034] Figure 4 yes Figure 3 The right front side view.

[0035] Figure 5 This is a schematic diagram of the clutch assembly in this invention.

[0036] Figure 6 yes Figure 2 Enlarged view of part A in the image.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Housing; 2. Input shaft; 3. Output shaft; 4. Planetary carrier; 5. Sun gear; 6. Planetary gear; 7. Ring gear; 8. Shift limit mechanism; 8-1. Guide groove; 8-2. Connecting frame; 8-3. Sealing plug; 8-4. Positioning sleeve; 8-5. Positioning pin; 9. Scraper; 10. Oil inlet; 11. Oil outlet; 12. Guide port; 13. Guide plate; 14. Storage groove; 15. Paddle; 16. Positioning mark; 17. Support shaft; 18. Support frame; 19. Drive shaft; 20. Propeller blade; 21. Clutch assembly; 21-1. Male end face gear plate; 21-2. Female end face gear plate; 22. Support sleeve. Detailed Implementation

[0039] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1:

[0040] like Figure 1-4 As shown, this embodiment includes a housing 1, a sun gear 5, a planetary gear 6, and a ring gear 7. The ring gear 7 is disposed inside the housing 1. An input shaft 2 is screwed through and threaded onto one end wall of the housing 1. The sun gear 5 is fixedly mounted on the input shaft 2 and inserted into the ring gear 7. An output shaft 3 is screwed through and threaded onto the other end wall of the housing 1. A planetary carrier 4 is fixedly mounted on the output shaft 3. The planetary gear 6 is screwed onto the planetary carrier 4 via a rotating shaft and is disposed between the sun gear 5 and the ring gear 7. The planetary gear 6 meshes with both the sun gear 5 and the ring gear 7. It also includes:

[0041] The support sleeve 22 is inserted and fixed on the planetary carrier 4. The end of the input shaft 2 is screwed into the positioning sleeve 8-4 through the bearing, thereby forming a support for the overall structure of the input shaft 2 and the output shaft 3.

[0042] The shift limit mechanism 8 is mounted on the housing 1 and is configured to cooperate with the ring gear 7 and the planetary carrier 4.

[0043] Scraper 9, wherein several scraper blades 9 are arranged in a group and two groups are provided. The scraper blades 9 are fixedly arranged on the end wall of the ring gear 7. The ring gear 7 is screwed into the housing 1 through a bearing.

[0044] Oil inlet 10, wherein the oil inlet 10 is fixed to the right end wall of the housing 1;

[0045] Oil outlet 11, wherein the oil outlet 11 is fixed to the left end wall of the housing 1;

[0046] With the above design, during normal operation of the planetary reducer, the ring gear 7 is fixed by the shifting limit mechanism 8, and the planet carrier 4 is in an active state. The input shaft 2 rotates, and after being reduced and transmitted by the sun gear 5 and planetary gear 6, the planet carrier 4 rotates, which in turn drives the output shaft 3 to rotate. When changing the oil, the planet carrier 4 is fixed by the shifting limit mechanism 8, which also limits the planetary gear 6. At this time, the output shaft 3 is limited and does not rotate. The input shaft 2 rotates through the sun gear 5 and planetary gear 6, which in turn drives the ring gear 7 to rotate. The ring gear 7 drives the scraper 9 to scrape and clean the inner wall of the housing 1. At this time, new oil is injected through the oil inlet 10, and old oil is discharged through the oil outlet 11. At the same time, the slag scraped off by the scraper 9 is discharged through the oil outlet 11. Example 2:

[0047] like Figure 1-6 As shown, based on the above embodiment 1, the shifting limit mechanism 8 includes:

[0048] Guide groove 8-1, wherein the guide groove 8-1 is fixedly installed on the upper side wall of the housing 1;

[0049] The connecting frame 8-2 is slidably disposed in the guide groove 8-1 and is movably mounted on the outside of the housing 1;

[0050] There are two sealing plugs 8-3, which are fixedly installed at the left and right ends of the connecting frame 8-2 respectively. The sealing plugs 8-3 on the left and right sides are respectively movably inserted into the left and right end walls of the housing 1.

[0051] Positioning sleeve 8-4, there are two positioning sleeves 8-4, one of which is fixedly installed on the end wall of the planetary carrier 4 facing the right sealing plug 8-3, and the other positioning sleeve 8-4 is fixedly installed on the end wall of the ring gear 7 facing the left sealing plug 8-3.

[0052] Positioning pin 8-5, the positioning pin 8-5 is fixedly set on the end wall of the sealing plug 8-3 facing the positioning sleeve 8-4;

[0053] A positioning opening is provided on the side plate of the positioning sleeve 8-4 set on the ring gear 7;

[0054] Guide plate 13, the guide plate 13 is fixedly installed on the side of the positioning port on the positioning sleeve 8-4;

[0055] The paddle 15 is provided with a storage groove 14 on the positioning pin 8-5 on the left side of the ring gear 7. The paddle 15 is fixedly provided on the inner wall of the storage groove 14 and extends out of the storage groove 14.

[0056] Positioning mark 16, the positioning mark 16 is fixedly set on the side wall of the output shaft 3 located at the outer end of the housing 1;

[0057] Using the above design scheme, during use, the sliding connecting frame 8-2 drives the sealing plug 8-3 to move, and then the sealing plug 8-3 drives the positioning pin 8-5 to move, that is, to drive the positioning pin 8-5 to insert into the positioning sleeve 8-4 or to pull out the positioning sleeve 8-4. When limiting the ring gear 7, the positioning pin 8-5 on one side of the ring gear 7 is inserted into the positioning sleeve 8-4 on the ring gear 7. At this time, the positioning pin 8-5 on the planetary carrier 4 is disengaged from the positioning sleeve 8-4. At this time, the ring gear 7 is limited and the planetary carrier 4 is movable. Alternatively, when limiting the planetary carrier 4, the sliding connecting frame 8-2 can be used to insert the positioning pin 8-5 on one side of the planetary carrier 4 into the positioning sleeve 8-4 on the planetary carrier 4.

[0058] When the positioning pin 8-5 on the left is inserted into the positioning sleeve 8-4 on the ring gear 7, and the two cannot be properly aligned, first move the corresponding positioning pin 8-5 so that it is on the same plane as the positioning sleeve 8-4 on the ring gear 7. Then temporarily fix the output shaft 3. At this time, the input shaft 2 rotates and drives the ring gear 7 to rotate. Then the ring gear 7 drives the positioning sleeve 8-4 on it to rotate, so that the positioning pin 8-5 corresponding to the positioning sleeve 8-4 slides from the guide port 12 on the positioning sleeve 8-4 into the positioning sleeve 8-4. At this time, the paddle 15 on the positioning pin 8-5 pops out and locks into the positioning sleeve 8-4, thus completing the connection between the positioning pin 8-5 and the positioning sleeve 8-4, which limits the ring gear 7.

[0059] The positioning sleeve 8-4 with guide port 12 on the ring gear 7 enables the positioning pin 8-5 to be aligned with the positioning sleeve 8-4 when the positioning pin 8-5 on this side is docked with the positioning sleeve 8-4. By rotating the ring gear 7, the positioning sleeve 8-4 on it is rotated, so that the positioning pin 8-5 is inserted into the positioning sleeve 8-4 from the side. This connection structure does not affect the ability to directly move the positioning pin 8-5 to the left from the positioning sleeve 8-4 and pull it out. Example 3:

[0060] like Figure 1-6 As shown, based on the above embodiment 2, a support shaft 17 is spun on the inner wall of the housing 1 via a bearing. The support shaft 17 and the input shaft 2 are connected by a gear set. A support frame 18 is spun on the input shaft 2 via a bearing. The upper end of the support frame 18 is fixedly mounted on the sealing plug 8-3 on the left side. The lower end of the support frame 18 is spun on the transmission shaft 19 via a bearing. A propeller blade 20 is fixedly mounted on the transmission shaft 19. The transmission shaft 19 and the support shaft 17 are connected by a clutch assembly 21.

[0061] The clutch assembly 21 includes:

[0062] Sub-end face gear disk 21-1, wherein the sub-end face gear disk 21-1 is fixedly mounted on the transmission shaft 19;

[0063] The female end face gear disk 21-2 is fixedly mounted on the support shaft 17, and the female end face gear disk 21-2 and the male end face gear disk 21-1 are meshed with each other.

[0064] By setting a docking structure between the sub-end face toothed disk 21-1 and the mother end face toothed disk 21-2, the problem of misalignment of the tooth grooves and damage to the structure teeth will not occur when the two are docked.

[0065] With the above design, when the planetary carrier 4 is fixed in place and the oil is changed, the connecting bracket 8-2 moves the support bracket 18 through the sealing plug 8-3, and the support bracket 18 moves the transmission shaft 19, so that the transmission shaft 19 and the support shaft 17 are connected and transmitted through the clutch assembly 21. At this time, when the input shaft 2 rotates and drives the ring gear 7 to rotate, the input shaft 2 drives the support shaft 17 to rotate through the gear set, and then drives the transmission shaft 19 to rotate. The transmission shaft 19 drives the turbine blades 20 to rotate. At this time, the turbine blades 20 stir the oil in the housing 1 and push the oil towards the oil outlet 11, thereby assisting in the oil change.

[0066] By adopting the technical solution disclosed in this invention, the following can be achieved:

[0067] When using this device, during normal transmission using the planetary reducer, move the connecting bracket 8-2 to the right, so that the positioning pin 8-5 on the left side is inserted into the positioning sleeve 8-4 on the ring gear 7, and the positioning pin 8-5 and positioning sleeve 8-4 on the right side are separated. At this time, the input shaft 2 drives the sun gear 5 to rotate, and through the meshing transmission between the planetary gear 6 and the ring gear 7, it drives the planet carrier 4 to rotate, that is, drives the output shaft 3 to rotate.

[0068] When changing the engine oil, the connecting bracket 8-2 is moved to the left, and the positioning pin 8-5 on the right side connects with the positioning sleeve 8-4 to limit the planetary carrier 4. At this time, the ring gear 7 rotates freely, and the male end face gear disk 21-1 mates with the female end face gear disk 21-2. The input shaft 2 rotates, which in turn drives the ring gear 7 to rotate, which in turn drives the propeller blade 20 to rotate. The ring gear 7 then drives the scraper 9 to scrape the inner wall of the housing 1. The propeller blade 20 stirs the engine oil in the housing 1 and pushes the oil to the left. New engine oil is then sent in through the oil inlet 10, and old engine oil is sent out through the oil outlet 11, thus changing the engine oil in the housing 1.

[0069] The technical advantages achieved by adopting the above technical solution are as follows:

[0070] 1. This planetary reducer sets both the ring gear 7 and the planet carrier 4 as movable structures. By setting two sets of movable locating pins 8-5 and locating sleeves 8-4, it can switch between two states: the planet carrier 4 rotates while the gear is switched and the planet carrier 4 is rotated. This allows for switching between two states: changing the transmission output of the device or changing the oil.

[0071] 2. A scraper 9 is provided on the ring gear 7, so that the working state of the device for changing the oil is switched when the ring gear 7 rotates, thereby realizing the cleaning of the inner wall of the housing 1 by the scraper 9 when changing the oil;

[0072] 3. In conjunction with the connecting frame 8-2 that moves when the device switches working states, a support frame 18 is set on the sealing plug 8-3, and a propeller blade 20 is set on the support frame 18. Thus, when changing the oil, the oil in the housing 1 is stirred and the oil is pushed to flow in one direction by the propeller blade 20 through the transmission docking between the input shaft 2 and the transmission shaft 19.

[0073] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the protection scope of this invention.

Claims

1. A planetary reducer that is easy to add lubricating oil, comprising a housing (1), a sun gear (5), planetary gears (6), and a ring gear (7), wherein the ring gear (7) is disposed inside the housing (1), an input shaft (2) is screwed through and connected to one end wall of the housing (1), the sun gear (5) is fixedly disposed on the input shaft (2) and inserted into the ring gear (7), an output shaft (3) is screwed through and connected to the other end wall of the housing (1), a planetary carrier (4) is fixedly disposed on the output shaft (3), the planetary gear (6) is screwed onto the planetary carrier (4) through a rotating shaft, and the planetary gear (6) is disposed between the sun gear (5) and the ring gear (7), and the planetary gear (6) is meshed with the sun gear (5) and the ring gear (7) respectively; characterized in that, It also includes: The shift limit mechanism (8) is installed on the housing (1) and is configured to cooperate with the ring gear (7) and the planetary carrier (4). Scraper (9), the scraper (9) is arranged in groups of several and in two groups. The scraper (9) is fixedly arranged on the end wall of the ring gear (7). The ring gear (7) is screwed into the housing (1) through the bearing. Oil inlet (10), the oil inlet (10) is fixed to the right end wall of the housing (1); Oil outlet (11), the oil outlet (11) is fixed to the left end wall of the housing (1); The shift limit mechanism (8) includes: Guide groove (8-1), the guide groove (8-1) is fixedly installed on the upper side wall of the housing (1); The connecting frame (8-2) is slidably disposed in the guide groove (8-1) and is movably mounted on the outside of the housing (1); Two sealing plugs (8-3) are provided and are fixedly installed at the left and right ends of the connecting frame (8-2). The sealing plugs (8-3) on the left and right sides are respectively movably inserted into the left and right end walls of the housing (1). Positioning sleeve (8-4), there are two positioning sleeves (8-4), one of which is fixedly set on the end wall of the planetary carrier (4) facing the right sealing plug (8-3), and the other positioning sleeve (8-4) is fixedly set on the end wall of the ring gear (7) facing the left sealing plug (8-3); The positioning pin (8-5) is fixedly installed on the end wall of the sealing plug (8-3) facing the positioning sleeve (8-4); The positioning sleeve (8-4) fixed on the end wall of the ring gear (7) has a guide opening (12) on its side wall. A guide plate (13) is fixedly installed on the side of the guide opening (12) of the positioning sleeve (8-4). A storage groove (14) is opened on the side wall of the positioning pin (8-5) on the sealing plug (8-3) on the left side. A paddle (15) is fixedly installed in the storage groove (14) of the positioning pin (8-5).

2. The planetary reducer with convenient lubrication oil addition according to claim 1, characterized in that: A positioning mark (16) is fixedly installed on the side wall outside the housing (1) on the output shaft (3). The positioning mark (16) and the positioning sleeve (8-4) on the planetary carrier (4) are configured to cooperate with each other.

3. A planetary reducer with convenient lubrication oil addition according to claim 2, characterized in that: A support shaft (17) is screwed onto the inner wall of the housing (1) via a bearing. The support shaft (17) and the input shaft (2) are connected by a gear set. A support frame (18) is screwed onto the input shaft (2) via a bearing. The upper end of the support frame (18) is fixedly mounted on the sealing plug (8-3) on the left side. A transmission shaft (19) is screwed onto the lower end of the support frame (18) via a bearing. A turbine blade (20) is fixedly mounted on the transmission shaft (19). The transmission shaft (19) and the support shaft (17) are connected by a clutch assembly (21).

4. A planetary reducer with convenient lubrication oil addition according to claim 3, characterized in that: The clutch assembly (21) includes: Sub-end face gear disk (21-1), wherein the sub-end face gear disk (21-1) is fixedly mounted on the transmission shaft (19); The female end face gear disk (21-2) is fixedly mounted on the support shaft (17), and the female end face gear disk (21-2) and the male end face gear disk (21-1) are meshed with each other.

5. A planetary reducer with convenient lubrication oil addition according to claim 4, characterized in that: A support sleeve (22) is fixedly installed on the planetary carrier (4), and the end of the input shaft (2) located on one side of the planetary carrier (4) is screwed into the support sleeve (22) through a bearing.

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