A main gear oil seal structure of a reducer assembly

Abstract

The utility model discloses a kind of main tooth oil seal structures of speed reducer assembly, it is related to oil seal structure technical field, including speed reducer, the side of speed reducer is fixedly installed with end cover, the center of end cover is equipped with gear shaft, oil seal is cooperatively installed between end cover and gear shaft, the oil seal includes outer sealing ring, the inside of outer sealing ring is provided with metal framework, a plurality of groups of through holes are set on the end face of outer sealing ring, the metal framework is provided with the threaded connection portion corresponding with through hole in position. The utility model design scheme is connected by corresponding tool and oil seal in the process of disassembly by designing threaded connection portion on metal framework, thereby greatly simplifying the disassembly process of oil seal, without prying tool, avoid the operation of needing greater force in traditional method, reduce disassembly difficulty, so that the disassembly of oil seal is more convenient and efficient.

Description

Technical Field

[0001] This utility model relates to the field of oil seal structure technology, and in particular to a main gear oil seal structure for a reducer assembly. Background Technology

[0002] In existing technology, a rubber or polyurethane oil seal is installed between the drive gear shaft of the reducer assembly and the end cover of the reducer to prevent lubricating oil leakage and isolate external contaminants, ensuring the normal operation of the equipment. During long-term use, the oil seal may lose its sealing effect due to wear or aging, requiring periodic replacement.

[0003] Currently, oil seals are typically removed by prying, which involves using tools to pry the edges of the oil seal, gradually detaching it from its installation position. While this method is simple, it can easily cause the following problems: 1. During the prying process, the oil seal material is relatively fragile and prone to cracking or deformation, rendering the oil seal unusable; 2. During disassembly, the prying tool may scratch, damage, or cause other unnecessary wear to the mounting surface or related components (such as end caps, shafts, etc.) around the oil seal, affecting the overall performance and lifespan of the equipment; 3. Because the oil seal is tightly embedded in the installation position, prying may require considerable force, leading to inconvenience, increased workload, and even greater difficulty in some complex structures, wasting time and effort. Utility Model Content

[0004] In order to overcome the above-mentioned defects in the prior art, this utility model provides a main gear oil seal structure for a reducer assembly.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a main gear oil seal structure for a reducer assembly, including a reducer, an end cover fixedly installed on the side of the reducer, a gear shaft provided at the center of the end cover, an oil seal fitted between the end cover and the gear shaft, the oil seal including an outer sealing ring, a metal skeleton provided on the inner side of the outer sealing ring, a plurality of through holes opened on the end face of the outer sealing ring, and a threaded connection part provided on the metal skeleton with a position corresponding to the through holes.

[0006] Furthermore, a central hole is provided at the center of the outer sealing ring, and several sets of through holes are evenly arranged in an array around the central hole. A main sealing lip is provided on the inner wall of the central hole near the reducer, and a clamping spring corresponding to the position of the main sealing lip is installed on the outer wall of the central hole.

[0007] Furthermore, the interior of the central hole is provided with several sets of dustproof lips at the end away from the reducer.

[0008] Furthermore, the cross-section of the metal frame is an "L" shaped structure, the threaded connection part is a threaded cylinder, the threaded cylinder is fixedly installed on the inner wall of the metal frame, the end of the threaded cylinder near the reducer is closed, and a clearance hole corresponding to the position of the threaded cylinder is opened on the end face of the metal frame.

[0009] Furthermore, the metal frame has a circular ring structure, the interior of the metal frame is hollow, and the threaded connection part adopts a threaded hole, which is opened on the end face of the metal frame away from the reducer.

[0010] The beneficial effects of this utility model are that, by designing a threaded connection part on the metal skeleton, the oil seal can be connected to the metal skeleton through a corresponding tool during disassembly, which greatly simplifies the disassembly process of the oil seal. It eliminates the need for prying tools, avoids the operation that requires a lot of force in the traditional method, reduces the difficulty of disassembly, and makes the disassembly of the oil seal more convenient and efficient. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the structure of the first embodiment of the present utility model; Figure 3 This is a schematic diagram of the structure of the second embodiment of the present utility model; Figure 4 This is a schematic diagram showing the connection between the present invention and the speed reducer; Figure 5 This is a schematic diagram of the installation of this utility model.

[0013] In the diagram: 1. Reducer; 2. End cover; 3. Gear shaft; 4. Oil seal; 5. Outer sealing ring; 6. Metal frame; 7. Through hole; 8. Center hole; 9. Main sealing lip; 10. Hoop spring; 11. Dustproof lip; 12. Threaded cylinder; 13. Clearance hole; 14. Threaded hole. Detailed Implementation

[0014] To more clearly illustrate the technical solution of this utility model, the following description is made in conjunction with the accompanying drawings. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings and embodiments without creative effort, and all of them fall within the protection scope of this utility model.

[0015] according to Figure 1-5As shown, a reducer assembly main gear oil seal structure includes a reducer 1. An end cover 2 is fixedly installed on the side of the reducer 1. A gear shaft 3 is provided at the center of the end cover 2. An oil seal 4 is fitted between the end cover 2 and the gear shaft 3. The oil seal 4 includes an outer sealing ring 5. A metal skeleton 6 is provided on the inner side of the outer sealing ring 5. Several sets of through holes 7 are opened on the end face of the outer sealing ring 5. A threaded connection part corresponding to the through hole 7 is provided on the metal skeleton 6.

[0016] In the above specific embodiment, by designing a threaded connection part on the metal skeleton 6, it is possible to connect with the oil seal 4 through a corresponding tool during the disassembly process, thereby greatly simplifying the disassembly process of the oil seal 4. No prying tool is required, avoiding the operation that requires a lot of force in the traditional method, reducing the difficulty of disassembly, and making the disassembly of the oil seal 4 more convenient and efficient.

[0017] A central hole 8 is provided at the center of the outer sealing ring 5. Several sets of through holes 7 are evenly arranged around the central hole 8. A main sealing lip 9 is provided at the end of the inner wall of the central hole 8 near the reducer 1. A clamping spring 10 corresponding to the position of the main sealing lip 9 is installed on the outer wall of the central hole 8. The main sealing lip 9 is in close contact with the outer wall of the gear shaft 3, which can effectively prevent lubricating oil from leaking out from the gap between the end cover 2 and the gear shaft 3. The clamping spring 10 enhances the positioning stability of the oil seal 4. Several sets of dustproof lips 11 are provided at the end of the central hole 8 away from the reducer 1. Preferably, the number of dustproof lips 11 is set to two sets. Multiple dustproof lips 11 can effectively prevent external dust from entering.

[0018] according to Figure 2 As shown, the cross-section of the metal frame 6 is an "L" shaped structure. The threaded connection part adopts a threaded cylinder 12, which is welded to the inner wall of the metal frame 6. The end of the threaded cylinder 12 near the reducer 1 is closed. A clearance hole 13 corresponding to the threaded cylinder 12 is opened on the end face of the metal frame 6. When disassembling the oil seal 4, the operator will install the screw matching the oil seal 4 into the threaded cylinder 12. The oil seal 4 can be removed from the end cover 2 by pulling the screw outward.

[0019] Figure 3 Another embodiment of the present invention is shown, the distinguishing feature being that the metal skeleton 6 is a ring-shaped structure, the interior of the metal skeleton 6 is hollow, the threaded connection part adopts a threaded hole 14, the threaded hole 14 is opened on the end face of the metal skeleton 6 away from the reducer 1. The ring-shaped structure of the metal skeleton 6 has a simpler construction and is suitable for compact equipment. When disassembling the oil seal 4, the operator will install the screw matching the oil seal 4 into the threaded hole 14, and the oil seal 4 can be removed from the end cover 2 by pulling the screw outward.

[0020] The above embodiments are merely exemplary embodiments of this utility model and are not intended to limit this utility model. The scope of protection of this utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this utility model within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this utility model.

Claims

1. A reducer assembly main gear oil seal structure, comprising a reducer (1), wherein an end cover (2) is fixedly installed on the side of the reducer (1), a gear shaft (3) is provided at the center of the end cover (2), and an oil seal (4) is fitted between the end cover (2) and the gear shaft (3), characterized in that: The oil seal (4) includes an outer sealing ring (5), and a metal skeleton (6) is provided on the inner side of the outer sealing ring (5). Several sets of through holes (7) are opened on the end face of the outer sealing ring (5), and a threaded connection part corresponding to the through hole (7) is provided on the metal skeleton (6).

2. The reducer assembly main gear oil seal structure according to claim 1, characterized in that, The outer sealing ring (5) has a central hole (8) at its center. Several sets of through holes (7) are evenly arranged around the central hole (8). The inner wall of the central hole (8) is provided with a main sealing lip (9) at one end near the reducer (1). A clamping spring (10) with a position corresponding to the main sealing lip (9) is installed on the outer wall of the central hole (8).

3. The reducer assembly main gear oil seal structure according to claim 2, characterized in that, The interior of the central hole (8) is provided with several sets of dustproof lips (11) at the end away from the reducer (1).

4. The reducer assembly main gear oil seal structure according to claim 2, characterized in that, The cross-section of the metal frame (6) is an "L" shaped structure. The threaded connection part adopts a threaded cylinder (12). The threaded cylinder (12) is fixedly installed on the inner wall of the metal frame (6). The end of the threaded cylinder (12) near the reducer (1) is closed. A clearance hole (13) corresponding to the position of the threaded cylinder (12) is opened on the end face of the metal frame (6).

5. The reducer assembly main gear oil seal structure according to claim 2, characterized in that, The metal skeleton (6) is a ring-shaped structure with a hollow interior. The threaded connection part adopts a threaded hole (14), which is opened on the end face of the metal skeleton (6) away from the reducer (1).

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