Converter secondary speed reducer output sealing structure
Patent Information
- Application Number
- CN202522585185.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-05
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-12-05
AI Technical Summary
多个部件配合位置的密封效果差，存在漏油风险，而漏油发生会产生一系列后果：一是润滑油长期泄漏会造成极大浪费，润滑成本增加；二是减速机输出泄漏形成的油渍影响输出两侧的外观；三是转炉减速机在高温环境工作，漏油极易挥发产生油气，从而污染环境，更会伤害人体，同时也更易发生火灾风险
综上所述，本实施例提供的转炉二次减速机输出密封结构，通过油封压盖抵住油封，能够减少油封运动产生的间隙，形成接触式密封。第二集油腔靠近油封设计，能够收集油封漏出的润滑油并随重力作用流入第二集油槽中。第二回油孔与油封压盖的第二集油槽连通，第二集油槽的油液通过第二回油孔流入到第一集油槽内。在箱体轴承座开始有第一回油孔，第一集油槽中的油液能够通过第一回油孔回流到箱本体内部，由此形成了集油和回油通道，有效改善了透盖与轴承衬套接触面和油封处的漏油问题。同时，第一集油腔能够存储润滑轴承本体的润滑油，当轴承本体的最低处滚动体浸油至少达到滚动体高度的1/2时，多余的润滑油能够回流到箱本体内部，减少到达油封处的润滑油，减小油封的负荷，油封处不易漏油。
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Figure CN224786330U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gearboxes, and more specifically, to an output sealing structure for a converter secondary reducer. Background Technology The converter tilting device is one of the core pieces of equipment in a steelmaking converter. It is responsible for driving the converter, which contains molten steel, to tilt precisely and smoothly to complete processes such as charging, blowing, sampling, tapping, and slag removal. The secondary reducer is the most critical and largest component of the converter tilting device. The main structure of the secondary reducer is a large output gear system.
[0002] The inventors discovered in their research that the existing converter secondary reducer output sealing structure has at least the following drawbacks: Poor sealing at the joints of multiple components poses a risk of oil leakage, which can lead to a series of consequences: First, long-term leakage of lubricating oil will result in significant waste and increased lubrication costs; second, oil stains from leakage at the reducer output will affect the appearance of both sides of the output; and third, since the converter reducer operates in a high-temperature environment, leaked oil is prone to volatilization, generating oil vapor that pollutes the environment, harms human health, and increases the risk of fire. Utility Model Content
[0003] The purpose of this utility model includes, for example, providing an output sealing structure for a converter secondary reducer, which can improve the sealing performance of the output structure, reduce the probability of oil leakage, and improve operational stability and reliability.
[0004] The embodiments of this utility model can be implemented as follows: In a first aspect, this utility model provides an output sealing structure for a converter secondary reducer, comprising: The gearbox body, gear hub, gearbox bearing housing, bearing bushing, bearing body, cover, oil seal, oil slinger ring, oil seal cover and pressure plate; The housing bearing seat is provided with a first oil return hole, and the housing bearing seat is mounted on the housing body; the bearing bushing is fixed on the housing bearing seat, and the gear hub is rotatably connected to the bearing bushing through the bearing body; the through cover is fixedly connected to the housing bearing seat; the through cover is provided with a communicating second oil return hole and a first oil collection groove, and the first oil collection groove communicates with the first oil return hole; the oil slinger ring is inserted into the through cover and sleeved on the outside of the gear hub, the oil slinger ring cooperates with the gear hub to clamp the inner ring of the bearing body, the oil seal is installed between the through cover and the oil slinger ring, and the first oil collection cavity is located on the side of the oil seal closer to the bearing body; The oil seal cover is provided with a second oil collecting chamber and a second oil collecting groove that are connected. The oil seal cover is fixed to the outside of the cover and seals the second oil return hole. The second oil collecting groove is located on the side of the oil seal away from the bearing body and is connected to the second oil return hole. The second oil collecting chamber is connected to the second oil collecting groove. The pressure plate is fixedly connected to the gear hub and is in contact with the side of the oil slinger ring away from the bearing body.
[0005] In an optional embodiment, the through cover is provided with a first oil collecting chamber and a third oil return hole, the third oil return hole and the second oil return hole being arranged at intervals in the circumferential direction of the through cover; the housing bearing seat is provided with a fourth oil return hole, the fourth oil return hole and the first oil return hole being arranged at intervals in the circumferential direction of the housing bearing seat; one end of the third oil return hole is connected to the first oil collecting chamber, and the other end is connected to the fourth oil return hole.
[0006] In an optional embodiment, the diameter of the third oil return hole is smaller than the diameter of the fourth oil return hole.
[0007] In an optional embodiment, the outer peripheral surface of the oil slinger ring is provided with a serrated groove, and the groove opening of the serrated groove is connected to the first oil collection chamber.
[0008] In an optional embodiment, the outer circumferential surface of the oil slinger ring is provided with a second oil collection channel, which is located on the side of the serrated groove away from the oil seal; the second oil collection channel is connected to the second oil collection chamber.
[0009] In an optional embodiment, the inner circumferential surface of the oil slinger ring is provided with a first annular groove, and a first sealing ring is installed in the first annular groove, the first sealing ring being in sealing contact with the outer circumferential surface of the gear hub.
[0010] In an optional embodiment, the outer peripheral surface of the transparent cover is provided with a first oil collection channel; the outer end face of the bearing bushing is provided with a chamfer, the first oil collection channel is located outside the chamfer, and the chamfer is used to guide the oil in the first oil collection channel to the first oil collection groove.
[0011] In an optional embodiment, a screw hole is provided at the bottom of the first oil collecting tank, and a screw plug is screwed into the screw hole.
[0012] In an optional embodiment, a third oil collection channel is provided on the outer peripheral surface of the bearing bushing, and the third oil collection channel is located inside the housing body.
[0013] In an optional embodiment, the outer circumferential surface of the bearing bushing is provided with a second annular groove, and a second sealing ring is installed in the second annular groove. The second sealing ring is in sealing contact with the bearing housing; the second sealing ring is located outside the third oil collection passage.
[0014] The beneficial effects of this utility model embodiment include, for example: In summary, the converter secondary reducer output sealing structure provided in this embodiment, by using an oil seal cover to press against the oil seal, reduces the gap generated by the movement of the oil seal, forming a contact seal. The second oil collection chamber is designed close to the oil seal, allowing it to collect lubricating oil leaking from the oil seal and flow into the second oil collection groove under gravity. The second oil return hole connects to the second oil collection groove of the oil seal cover, and the oil in the second oil collection groove flows into the first oil collection groove through the second oil return hole. A first oil return hole is located at the bearing housing, allowing the oil in the first oil collection groove to flow back into the housing body, thus forming an oil collection and return channel, effectively improving oil leakage at the contact surface between the cover and the bearing bushing and at the oil seal. Simultaneously, the first oil collection chamber can store lubricating oil for the bearing body. When the lowest rolling element of the bearing body is immersed in oil to at least half its height, excess lubricating oil can flow back into the housing body, reducing the amount of lubricating oil reaching the oil seal, reducing the load on the oil seal, and making oil leakage at the oil seal less likely. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a first-view cross-sectional view of the output sealing structure of the converter secondary reducer in this embodiment. Figure 2 for Figure 1 A magnified schematic diagram of the partial structure at point A in the middle; Figure 3 for Figure 1 A magnified schematic diagram of the local structure at point B; Figure 4 This is a cross-sectional view from a second perspective of the output sealing structure of the converter secondary reducer in this embodiment; Figure 5 for Figure 4 A magnified schematic diagram of the structure at point C in the middle; Figure 6 This is a schematic diagram of the bearing bushing in this embodiment; Figure 7 This is a schematic diagram of the oil slinger ring in this embodiment.
[0017] icon: 1-Gear hub; 2-Box bearing housing; 3-Bearing bushing; 4-Bearing body; 5-Through cover; 6-Oil seal; 7-Oil slinger ring; 8-Oil seal cover; 9-Pressure plate; 10-First sealing ring; 11-Second sealing ring; 12-Screw plug; 13-Box body; 100 - Second oil collecting chamber; 101 - Second oil collecting groove; 200 - Second oil return hole; 300 - First oil collecting groove; 301 - First oil collecting channel; 400 - First oil return hole; 500 - First oil collecting chamber; 600 - Third oil return hole; 700 - Fourth oil return hole; 800 - Third oil collecting channel; 801 - Second annular groove; 900 - Serrated groove; 901 - Second oil collecting channel; 902 - First annular groove. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0019] 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 claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0021] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0022] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.
[0023] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.
[0024] Please refer to Figures 1-7 This embodiment provides an output sealing structure for a converter secondary reducer, comprising a housing body 13, a gear hub 1, a housing bearing seat 2, a bearing bushing 3, a bearing body 4, a through cover 5, an oil seal 6, an oil slinger ring 7, an oil seal cover 8, and a pressure plate 9. The housing bearing seat 2 is provided with a first oil return hole 400 and is fixed to the housing body 13. The bearing bushing 3 is installed on the housing bearing seat 2, and the gear hub 1 is rotatably connected to the bearing bushing 3 via the bearing body 4. The through cover 5 is fixedly connected to the housing bearing seat 2. The through cover 5 is provided with a communicating second oil return hole 200 and a first oil collection groove 300, the first oil collection groove 300 communicating with the first oil return hole 400. The oil slinger ring 7 is inserted into the through cover 5 and sleeved on the outside of the gear hub 1, the oil slinger ring 7 and the gear hub 1 engaging to clamp... The inner ring of the bearing body 4 is held by an oil seal 6 installed between the cover 5 and the oil slinger ring 7. The first oil collection chamber 500 is located on the side of the oil seal 6 closer to the bearing body 4. The oil seal cover 8 is provided with a second oil collection chamber 100 and a second oil collection groove 101 that are connected. The oil seal cover 8 is fixed to the outside of the cover 5 and seals the second oil return hole 200. The second oil collection groove 101 is located on the side of the oil seal 6 away from the bearing body 4 and is connected to the second oil return hole 200. The pressure plate 9 is fixedly connected to the gear hub 1 and contacts the side of the oil slinger ring 7 away from the bearing body 4.
[0025] As described above, the working principle of the output sealing structure of the converter secondary reducer provided in this embodiment is as follows: By pressing the oil seal cap 8 against the oil seal 6, the gap generated by the movement of the oil seal 6 can be reduced, forming a contact seal. The second oil collecting chamber 100 is designed close to the oil seal 6, which can collect the lubricating oil leaking from the oil seal 6 and flow into the second oil collecting groove 101 under gravity. The second oil return hole 200 is connected to the second oil collecting groove 101 of the oil seal cap 8, and the oil in the second oil collecting groove 101 flows into the first oil collecting groove 300 through the second oil return hole 200. There is a first oil return hole 400 at the bearing housing 2, and the oil in the first oil collecting groove 300 can flow back into the housing body 13 through the first oil return hole 400, thus forming an oil collecting and return channel, effectively improving the oil leakage problem at the contact surface between the cover 5 and the bearing bushing 3 and at the oil seal 6. Meanwhile, the first oil chamber 500 can store lubricating oil for lubricating the bearing body 4. When the rolling element at the lowest point of the bearing body 4 is immersed in oil to at least 1 / 2 of the rolling element height, the excess lubricating oil can flow back into the housing body 13, reducing the amount of lubricating oil reaching the oil seal 6, reducing the load on the oil seal 6, and making it less prone to oil leakage at the oil seal 6.
[0026] The following embodiments illustrate the details of the output sealing structure of the converter secondary reducer of this application by way of example.
[0027] Please refer to Figures 1-7In this embodiment, the optional output sealing structure of the converter secondary reducer includes structural components such as gear hub 1, housing bearing seat 2, bearing bushing 3, bearing body 4, through cover 5, oil seal 6, oil slinger ring 7, oil seal cover 8, pressure plate 9, first sealing ring 10, second sealing ring 11, screw plug 12 and housing body 13.
[0028] The bearing body 4 and the oil slinger ring 7 are mounted on the gear hub 1. One side of the inner ring of the bearing body 4 contacts and limits the movement of the stepped surface of the gear hub 1, and the other side contacts and limits the movement of the oil slinger ring 7. The inner ring of the bearing body 4 has a transition fit with the outer circumferential surface of the gear hub 1, and the inner circumferential surface of the oil slinger ring 7 has a transition fit with the outer circumferential surface of the gear hub 1. The other side of the oil slinger ring 7 contacts and limits the movement of the pressure plate 9, and the pressure plate 9 is connected and fixed to the gear hub 1 by fasteners. The fasteners can be, but are not limited to, bolts.
[0029] Optionally, the inner circumferential surface of the oil slinger ring 7 is provided with an annular groove for installing the first sealing ring 10. The outer ring of the bearing body 4 is fitted inside the bearing bushing 3, and the outer ring of the bearing body 4 and the bearing bushing 3 are configured for clearance fit. One side of the outer ring of the bearing body 4 is limited by the stop of the bearing bushing 3. The bearing bushing 3 is fitted inside the housing bearing seat 2, and the bearing bushing 3 and the housing bearing seat 2 are designed for clearance fit. The housing bearing seat 2 and the housing body 13 can be an integral structure with high structural strength and are not easily damaged. The outer circumferential surface of the bearing bushing 3 is provided with a first annular groove 902, and a second sealing ring 11 is installed in the first annular groove 902. The bearing bushing 3 and the through cover 5 are fixedly connected by bolts. The stop of the through cover 5 is inserted into the bearing bushing 3 and is clearance fit with the inner circumferential surface of the bearing bushing 3. The inner end face of the through cover 5 contacts the outer end face of the housing bearing seat 2 and is fixed by bolts. The bottom of the through cover 5 is provided with an oil collection groove and a screw hole for installing a screw plug 12. In this way, the gear hub 1 is connected to the bearing bushing 3 and the bearing body 4, and is supported by the housing bearing seat 2. To achieve forced thin oil lubrication of the bearing body 4, the cover 5 is designed with a bearing oil inlet hole. Because the inner circumferential surface of the cover 5 is non-contact with the oil slinger ring 7, an oil seal 6 is installed in the inner cavity of the cover 5 to prevent oil leakage. The lip of the oil seal 6 contacts the outer circumferential surface of the oil slinger ring 7. The oil seal cover 8 is bolted to the cover 5, and the stop of the oil seal cover 8 abuts against the oil seal 6 to prevent the oil seal 6 from loosening.
[0030] The sealing principle of the output sealing structure in this embodiment is as follows: First, parallel oil seals 6 are installed inside the cavity of the through cover 5; second, a first annular groove 902 is opened on the inner circumferential surface of the oil slinger ring 7 to install the first sealing ring 10; third, an annular groove is opened on the outer circumferential surface of the oil slinger ring 7 as a second oil collection channel 901; fourth, the oil seal cover 8 is thickened and a second oil collection cavity 100 and a second oil collection groove 101 are opened. At the same time, a second oil return hole 200 and a first oil return hole 400 are respectively set on the through cover 5 and the housing bearing seat 2, which are connected to the second oil collection groove 101 of the oil seal cover 8 to form an oil return channel; fifth, a third oil return hole 600 and a fourth oil return hole 700 are respectively set on the through cover 5 and the housing bearing seat 2, which are connected to the first oil collection cavity 500 of the through cover 5. That is, the first oil collection cavity 500, the third oil return hole 600 and the fourth oil return hole 700 are connected in sequence to form an oil return channel.
[0031] The following provides a specific implementation of the output sealing structure of this embodiment: Please refer to Figures 1-7 Optionally, the oil seal gland 8 is provided with a stop, a second oil collecting chamber 100, and a second oil collecting groove 101. The stop of the oil seal gland 8 abuts against the oil seal 6, reducing the gap generated when the oil seal 6 moves, thereby forming a contact seal. The second oil collecting chamber 100 is close to the oil seal 6, collecting the lubricating oil leaking from the oil seal 6 and flowing into the second oil collecting groove 101 under gravity.
[0032] Optionally, the through cover 5 is provided with a first oil collecting chamber 500, a second oil return hole 200, and a third oil return hole 600. A first oil collecting groove 300 and a first oil collecting channel 301 are also provided. The second oil return hole 200 communicates with the second oil collecting groove 101 of the oil seal cover 8, and its oil flows into the first oil collecting groove 300. A first oil collecting channel 301 is designed at the stop of the through cover 5 to collect oil seeping from the stop of the through cover 5, and the oil flows into the first oil collecting groove 300 from the cavity formed by the slope of the inner circumferential surface of the bearing bushing 3.
[0033] Optionally, a first oil return hole 400 is provided in the bearing housing 2 of the housing, allowing oil in the first oil collection groove 300 to flow back into the housing through the first oil return hole 400. This forms an oil collection and return channel, effectively improving the oil leakage problem at the contact surface between the cover 5 and the bearing bushing 3 and at the oil seal 6. Simultaneously, a screw hole is provided at the bottom of the first oil collection groove 300 for installing a screw plug 12. When the first oil return hole 400 is blocked by oil accumulation, oil solidification, or other factors, the screw plug 12 can be removed to clean the first oil collection groove 300 and the first oil return hole 400.
[0034] Optionally, the first oil collection chamber 500 of the cover 5 is used to store bearing lubricating oil. When the rolling elements at the lowest point of the bearing body 4 are immersed in oil to at least half of their height, excess lubricating oil flows out through the third oil return hole 600. Simultaneously, a fourth oil return hole 700 is designed on the bearing housing 2 to connect with the third oil return hole 600. The diameter of the third oil return hole 600 is smaller than that of the fourth oil return hole 700 to prevent residual oil accumulation. This forms a lubricating oil return channel, effectively improving the problem of the lack of a separate oil return path for the lubricating oil in the large gear system.
[0035] Optionally, the oil slinger ring 7 is provided with a serrated groove 900, a second oil collection channel 901, and a first annular groove 902. The serrated groove 900 is located within the space of the first oil collection chamber 500, and its functions are twofold: first, to prevent lubricating oil from flowing axially towards the oil seal 6; and second, to collect the lubricating oil and allow it to fall into the first oil collection chamber 500 by gravity. The second oil collection channel 901 is located within the second oil collection chamber 100 of the oil seal cover 8, and is used to collect oil seeping from the oil seal 6, allowing it to fall into the second oil collection chamber 100 by gravity and flow into the second oil collection groove 101. The first annular groove 902 is used to install the first sealing ring 10 for contact sealing. This solves the oil leakage problem at the contact surface between the oil slinger ring 7 and the gear hub 1, and improves the oil collection efficiency of the first oil collection chamber 500 and the second oil collection groove 101.
[0036] Optionally, the bearing bushing 3 is provided with a third oil collection channel 800 and a second annular groove 801. The third oil collection channel 800 is located inside the housing and, based on the Coanda effect of fluid flow, prevents oil from flowing along the outer circumferential surface of the bearing bushing 3 into the gap between the bearing bushing 3 and the housing bearing seat 2. The second annular groove 801 is used to install the second sealing ring 11 for contact sealing. This forms a combined seal, effectively improving the oil leakage problem at the mounting surface between the bearing bushing 3 and the housing bearing seat 2.
[0037] In summary, the converter secondary reducer output sealing structure provided in this embodiment has at least the following advantages: 1. The output sealing structure of this embodiment is designed with both an oil collection groove and an oil return hole on the cover 5 for oil leakage recovery. The oil return hole for lubricating oil completes the oil collection and return channel for oil leakage, increases the reliability of lubricating oil return, and improves the stability of lubrication of the output large gear system. 2. The output sealing structure of this embodiment is designed with both oil collection channels and annular grooves on the bearing bushing 3 to form a combined seal, which is simple in structure and low in manufacturing cost. 3. The output sealing structure of this embodiment has a sawtooth groove 900 on the oil slinger ring 7 to block the axial flow of lubricating oil, reduce the risk of oil leakage from the oil seal 6, and has a simple structure and low cost. 4. The output sealing structure in this embodiment increases the oil return channel and the oil collection-return path for leaking oil, thereby reducing the risk of secondary oil leakage at the output end of the secondary reducer and improving the reusability of lubricating oil. At the same time, the sealing structure is easy to disassemble and assemble, and simple to maintain.
[0038] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A converter secondary reducer output sealing structure, characterized in that, include: The box body (13), gear hub (1), box bearing seat (2), bearing bushing (3), bearing body (4), cover (5), oil seal (6), oil slinger ring (7), oil seal cover (8) and pressure plate (9); The housing bearing seat (2) is provided with a first oil return hole (400), and the housing bearing seat (2) is fixed on the housing body (13); the bearing bushing (3) is installed on the housing bearing seat (2), and the gear hub (1) is rotatably connected to the bearing bushing (3) through the bearing body (4); the cover (5) is fixedly connected to the housing bearing seat (2); the cover (5) is provided with a second oil return hole (200) and a first oil collection groove (300), the second oil return hole (200) is connected to the first oil collection groove (300), and the first oil collection groove (300) is connected to the first oil return hole (400); the oil slinger ring (7) is inserted into the cover (5) and sleeved on the gear hub (1), the oil slinger ring (7) cooperates with the gear hub (1) to clamp the inner ring of the bearing body (4), and the oil seal (6) is installed between the cover (5) and the oil slinger ring (7); The oil seal cover (8) is provided with a second oil collection chamber (100) and a second oil collection groove (101) that are connected. The oil seal cover (8) is fixed to the outside of the cover (5) and seals the second oil return hole (200). The second oil collection groove (101) is located on the side of the oil seal (6) away from the bearing body (4) and is connected to the second oil return hole (200). The pressure plate (9) is fixedly connected to the gear hub (1) and contacts the side of the oil slinger ring (7) away from the bearing body (4).
2. The output sealing structure of the converter secondary reducer according to claim 1, characterized in that: The cover (5) is provided with a first oil collecting chamber (500) and a third oil return hole (600). The first oil collecting chamber (500) is located on the side of the oil seal (6) close to the bearing body (4). The third oil return hole (600) and the second oil return hole (200) are arranged at intervals in the circumferential direction of the cover (5). The housing bearing seat (2) is provided with a fourth oil return hole (700). The fourth oil return hole (700) and the first oil return hole (400) are arranged at intervals in the circumferential direction of the housing bearing seat (2). One end of the third oil return hole (600) is connected to the first oil collecting chamber (500), and the other end is connected to the fourth oil return hole (700).
3. The output sealing structure of the converter secondary reducer according to claim 2, characterized in that: The diameter of the third return oil hole (600) is smaller than that of the fourth return oil hole (700).
4. The output sealing structure of the converter secondary reducer according to claim 2, characterized in that: The outer circumferential surface of the oil slinger ring (7) is provided with a serrated groove (900), and the groove opening of the serrated groove (900) is connected to the first oil collection chamber (500).
5. The output sealing structure of the converter secondary reducer according to claim 4, characterized in that: The outer circumferential surface of the oil slinger ring (7) is provided with a second oil collection channel (901), which is located on the side of the serrated groove (900) away from the oil seal (6); the second oil collection channel (901) is connected to the second oil collection chamber (100).
6. The output sealing structure of the converter secondary reducer according to claim 4, characterized in that: The inner circumferential surface of the oil slinger ring (7) is provided with a first annular groove (902), and a first sealing ring (10) is installed in the first annular groove (902). The first sealing ring (10) is in sealing contact with the outer circumferential surface of the gear hub (1).
7. The output sealing structure of the converter secondary reducer according to any one of claims 1-6, characterized in that: The outer peripheral surface of the cover (5) is provided with a first oil collection channel (301); the outer end face of the bearing bush (3) is provided with a chamfer, the first oil collection channel (301) is located outside the chamfer, and the chamfer is used to guide the oil in the first oil collection channel (301) to the first oil collection groove (300).
8. The output sealing structure of the converter secondary reducer according to any one of claims 1-6, characterized in that: The bottom of the first oil collection tank (300) is provided with a screw hole, and a screw plug (12) is screwed into the screw hole.
9. The output sealing structure of the converter secondary reducer according to any one of claims 1-6, characterized in that: The bearing bushing (3) has a third oil collection channel (800) on its outer circumferential surface, and the third oil collection channel (800) is located inside the housing body (13).
10. The output sealing structure of the converter secondary reducer according to claim 9, characterized in that: The outer circumferential surface of the bearing bush (3) is provided with a second annular groove (801), and a second sealing ring (11) is installed in the second annular groove (801). The second sealing ring (11) is in sealing contact with the housing bearing seat (2). The second sealing ring (11) is located outside the third oil collection channel (800).