Waterproof sealing of structures and vehicles

Abstract

The present application provides a waterproof sealing structure and a vehicle, belonging to the technical field of special equipment, the waterproof sealing structure includes: a main reducer body, including a main reducer body and a fixed flange, the main reducer body includes an output gear; an output assembly, which cooperates with the output gear, and the output assembly is used to output power; an end cover, which is sleeved on the output assembly and is located on the side of the fixed flange away from the main reducer body, the end cover part extends into the fixed flange, the end cover is fixedly arranged, and the end cover is used to limit the axial movement of the output assembly; a first seal, which is sleeved on the output assembly and is located between the output assembly and the end cover, and the first seal is used to seal between the output assembly and the end cover. The present application can meet the waterproof requirements of special vehicles and amphibious vehicles for wading and driving on water.

Description

Technical Field

[0001] The present application belongs to the technical field of special equipment, and specifically, relates to a waterproof sealing structure and a vehicle. Background Art

[0002] When some special vehicles and amphibious vehicles are wading or driving on water, the transmission components need to be sealed to prevent water from entering the transmission components or the vehicle body.

[0003] When water enters the transmission parts, the lubricating oil will deteriorate quickly, lose its lubricating effect, and eventually damage the transmission parts. Summary of the invention

[0004] The present application aims to solve at least one of the above-mentioned technical problems.

[0005] To this end, the first object of the present application is to provide a waterproof sealing structure.

[0006] A second object of the present application is to provide a vehicle.

[0007] To achieve the first purpose of the present application, the technical solution of the first aspect of the present application provides a waterproof sealing structure, including: a main reducer, including a main reducer body and a fixed flange, the main reducer body including an output gear; an output assembly, cooperating with the output gear, the output assembly is used to output power; an end cover, sleeved on the output assembly and located on the side of the fixed flange away from the main reducer body, the end cover partially extends into the fixed flange, the end cover is fixedly arranged, and the end cover is used to limit the axial movement of the output assembly; a first seal, sleeved on the output assembly and located between the output assembly and the end cover, the first seal is used to seal between the output assembly and the end cover.

[0008] According to the waterproof sealing structure provided in the present application, it includes a main reducer, an output assembly, a fixed flange, an end cover and a first seal. The main reducer drives the output assembly to output power through the output gear, and the end cover is used to limit the axial movement of the output assembly. A first seal is provided between the end cover and the output assembly, and the first seal can rotate and seal the end cover and the output assembly. Through the first seal, the structure enclosed by the main reducer body, the output assembly, the fixed flange and the end cover can be sealed, thereby preventing the lubricating oil inside it from flowing out, and preventing water and other foreign matter from entering it, avoiding damage to the internal structure and contamination of the lubricating oil, and realizing the motion sealing of the transmission parts of the amphibious vehicle. It has a compact structure and a lightweight design, which can meet the weight reduction requirements of amphibious vehicles.

[0009] In addition, the technical solution provided by this application may also have the following additional technical features:

[0010] In the above technical solution, the output assembly includes: an output shaft, which cooperates with the output gear; a second seal, which is sleeved on the output shaft and located between the output shaft and the main reducer body, and the second seal is used to seal the main reducer; a transmission shaft, one end of the transmission shaft is connected to the output shaft, and the fixed flange, end cover and first seal are sleeved on the transmission shaft.

[0011] In this technical solution, the output assembly includes an output shaft, a second seal and a transmission shaft. The output shaft cooperates with the output gear to output power. One end of the transmission shaft is connected to the output shaft, and the other end of the transmission shaft is used to connect to the wheel side transmission device. The second seal is located between the output shaft and the main reducer body, and is used to seal the main reducer body to prevent the lubricating oil inside the main reducer body from flowing out, and also to prevent water and other foreign matter from entering the main reducer body, thereby avoiding damage to the internal structure of the reducer and contamination of the lubricating oil.

[0012] In the above technical solution, the waterproof sealing structure also includes: a first bearing, which is arranged between the output shaft and the main reducer body and is located on the side of the second seal away from the fixed flange; a first retaining spring, which is arranged on the side of the first bearing close to the second seal, and the first retaining spring is used to limit the axial movement of the first bearing.

[0013] In this technical solution, the waterproof sealing structure also includes a first bearing and a first retaining spring. The first bearing can ensure the smooth rotation of the output shaft, and the first retaining spring can limit the axial movement of the first bearing, thereby ensuring reliable power transmission connection, and the output shaft and the main reducer body can be rotationally sealed through the second seal.

[0014] In the above technical solution, the transmission shaft includes: a connecting flange, one end of which is connected to the output shaft, and a fixed flange, an end cover and a first sealing member are sleeved on the connecting flange; and a transmission shaft body, one end of which is detachably connected to the other end of the connecting flange.

[0015] In this technical solution, the transmission shaft includes a connecting flange and a transmission shaft body. The end cover is sleeved on the connecting flange to limit the axial movement of the connecting flange. The first sealing member is used for waterproof sealing between the connecting flange and the end cover. One end of the connecting flange is connected to the output shaft, and the other end is detachably connected to the transmission shaft body. When the transmission shaft body needs to be maintained or replaced, it is only necessary to disconnect the connection between the transmission shaft body and the connecting flange, which is convenient for maintenance.

[0016] In the above technical solution, the waterproof sealing structure also includes: a third sealing member, which is sleeved on the end cover and located between the end cover and the fixed flange, and the third sealing member is used for sealing between the end cover and the fixed flange; and / or one end of the fixed flange is fixedly connected to one end of the main reducer body.

[0017] In this technical solution, a third seal is provided between the end cover and the fixed flange, and the third seal can fix and seal the end cover and the fixed flange. One end of the fixed flange is fixedly connected to one end of the main reducer body, and the main reducer body and the housing can be fixedly connected through the fixed flange.

[0018] In the above technical solution, the waterproof sealing structure also includes a second bearing, an inner retaining ring and an outer retaining ring, the second bearing is located between the end cover and the output assembly, the inner retaining ring is located on the side of the second bearing close to the main reducer body, and the outer retaining ring is located on the side of the second bearing away from the main reducer body; or the waterproof sealing structure also includes a second bearing, a locking plate, a nut and an outer retaining ring, the locking plate and the nut are located on the side of the first bearing close to the main reducer body, and the outer retaining ring is located on the side of the second bearing away from the main reducer body.

[0019] In this technical solution, the waterproof sealing structure also includes a second bearing, an inner retaining ring and an outer retaining ring. The second bearing can support the output assembly to rotate smoothly, and the inner retaining ring and the outer retaining ring can limit the axial movement of the output assembly and the second bearing to ensure reliable power transmission connection. Or the waterproof sealing structure also includes a second bearing, a locking plate, a nut and an outer retaining ring. The second bearing can support the output assembly to rotate smoothly, and the locking plate and the nut fix the output assembly and the end cover. The connecting flange may be provided with a slot required for installing the locking plate and a threaded section required for installing the nut. The locking plate, the nut and the outer retaining ring can limit the axial movement of the output assembly and the second bearing to ensure reliable power transmission connection.

[0020] In the above technical solution, the waterproof sealing structure also includes: a dustproof member located between the output assembly and the end cover, and the dustproof member is used to prevent dust from entering the installation area of ​​the first sealing member.

[0021] In this technical solution, the waterproof sealing structure also includes a dustproof member. Between the output assembly and the end cover, a rotating dustproof structure is formed by the dustproof member to prevent dust from entering the installation area of ​​the first sealing member and avoiding dust from affecting the sealing effect of the first sealing member.

[0022] In the above technical solution, the end cover is detachably connected to the fixed flange; the waterproof sealing structure also includes: a shell, which is fixedly connected to the fixed flange; a fourth seal, which is located between the shell and the fixed flange and is used to seal the shell.

[0023] In this technical solution, the waterproof sealing structure also includes a housing and a fourth sealing member. The fourth sealing member is located between the housing and the fixed flange, and is used to seal the housing to prevent water outside the housing from entering the inside of the housing. The end cover and the fixed flange are connected by bolts or the like, which is convenient for quick disassembly and assembly. When the first sealing member needs to be replaced, it is only necessary to disassemble the fixed connection between the end cover and the fixed flange, and then the first sealing member can be replaced outside the housing, which is convenient and quick to maintain.

[0024] In the above technical solution, the waterproof sealing structure also includes: a shell, which is fixedly connected to the end cover; a fourth seal, which is located between the shell and the end cover, and the fourth seal is used to seal the shell; or a shell, which is fixedly connected to the end cover and fixedly connected to the fixed flange; a fourth seal, which is located between the shell and the end cover, and the fourth seal is used to seal the shell.

[0025] In this technical solution, the waterproof sealing structure also includes a shell and a fourth sealing member, the shell is fixedly connected to the end cover, and the fourth sealing member is located between the shell and the end cover, and is used to seal the shell to prevent water outside the shell from entering the inside of the shell. Or the fixed flange and the shell and the end cover are fixed at the same time, thereby strengthening the connection between the fixed flange, the end cover and the shell.

[0026] To achieve the second purpose of the present application, the technical solution of the second aspect of the present application provides a vehicle, including: an engine; a waterproof sealing structure such as any technical solution in the first aspect of the present application, wherein the engine is arranged in the waterproof sealing structure.

[0027] The vehicle provided by the present application includes an engine and a waterproof sealing structure as any one of the technical solutions in the first aspect of the present application, so it has all the beneficial effects of the waterproof sealing structure as any one of the technical solutions in the first aspect of the present application, which will not be repeated here. The engine is arranged in the waterproof sealing structure, which can meet the waterproof requirements of the vehicle for wading and driving on water.

[0028] Additional aspects and advantages of the present application will become apparent in the following description or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0030] Figure 1 is a schematic cross-sectional structural diagram of a waterproof sealing structure according to an embodiment of the present application;

[0031] Figure 2 is a schematic cross-sectional structural diagram of a waterproof sealing structure according to an embodiment of the present application;

[0032] Figure 3 is a schematic cross-sectional structural diagram of a waterproof sealing structure according to an embodiment of the present application;

[0033] Figure 4 is a schematic diagram of a partial cross-sectional structure of a waterproof sealing structure according to an embodiment of the present application;

[0034] Figure 5 is a schematic diagram of a partial cross-sectional structure of a waterproof sealing structure according to an embodiment of the present application;

[0035] Figure 6 is a schematic diagram of a partial cross-sectional structure of a waterproof sealing structure according to an embodiment of the present application;

[0036] Figure 7 is a schematic diagram of a partial cross-sectional structure of a waterproof sealing structure according to an embodiment of the present application;

[0037] Figure 8 is a schematic diagram of a partial cross-sectional structure of a waterproof sealing structure according to an embodiment of the present application;

[0038] Fig. 9 is a partial exploded view of a waterproof sealing structure according to an embodiment of the present application;

[0039] Fig.10 is a schematic diagram of the three-dimensional structure of a connecting flange according to an embodiment of the present application;

[0040] Fig.11 is a schematic cross-sectional structural diagram of a waterproof sealing structure according to an embodiment of the present application;

[0041] Fig.12 It is a schematic block diagram of the structure of a vehicle according to an embodiment of the present application.

[0042] in, Figures 1 to 12 The corresponding relationship between the reference numerals and the component names is as follows:

[0043] 10: vehicle; 100: waterproof sealing structure; 102: main reducer body; 104: output gear; 106: output assembly; 108: fixing flange; 110: end cover; 112: third seal; 114: first seal; 116: output shaft; 118: second seal; 120: first bearing; 122: first retaining ring; 124: fourth seal; 126: connecting flange; 128: transmission shaft body; 130: second bearing; 132: inner retaining ring; 134: outer retaining ring; 136: locking plate; 138: nut; 140: dustproof part; 142: housing; 144: engine; 146: transmission shaft. DETAILED DESCRIPTION

[0044] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0045] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0046] Refer to the following Figures 1 to 12 The waterproof sealing structure and the vehicle according to some embodiments of the present application are described.

[0047] like Figure 1 As shown, this embodiment provides a waterproof sealing structure 100, including a main reducer, an output assembly 106, an end cover 110 and a first seal 114. Specifically, the main reducer includes a main reducer body 102 and a fixed flange 108, and the main reducer body 102 includes an output gear 104. The output assembly 106 cooperates with the output gear 104 to output power. The end cover 110 is sleeved on the output assembly 106 and is located on the side of the fixed flange 108 away from the main reducer body 102. The end cover 110 partially extends into the fixed flange 108 and is fixedly arranged, and the end cover 110 is used to limit the axial movement of the output assembly 106. The first seal 114 is sleeved on the output assembly 106 and is located between the output assembly 106 and the end cover 110. The first seal 114 is used for sealing between the output assembly 106 and the end cover 110.

[0048] The waterproof sealing structure 100 provided by the present application includes a main reducer, an output assembly 106, an end cover 110 and a first seal 114. The main reducer drives the output assembly 106 to output power through the output gear 104, and the end cover 110 is used to limit the axial movement of the output assembly 106. A first seal 114 is provided between the end cover 110 and the output assembly 106, and the first seal 114 can rotatably seal the end cover 110 and the output assembly 106. Through the first seal 114, the structure surrounded by the main reducer body 102, the output assembly 106, the fixed flange 108 and the end cover 110 can be sealed, thereby preventing the lubricating oil inside from flowing out, and preventing water and other foreign matter from entering inside, avoiding damage to the internal structure and contamination of the lubricating oil, and realizing the motion sealing of the transmission parts of the amphibious vehicle. It has a compact structure and a lightweight design, which can meet the weight reduction requirements of the amphibious vehicle.

[0049] The number of the first sealing member 114 can be one or more. The waterproof sealing structure 100 is symmetrically arranged, and both sides of the main reducer body 102 can be sealed and waterproof.

[0050] like Figure 2As shown, in some embodiments, the output assembly 106 includes an output shaft 116, a second seal 118 and a transmission shaft 146. The second seal 118 is sleeved on the output shaft 116 and is located between the output shaft 116 and the main reducer body 102. The output shaft 116 cooperates with the output gear 104 to output power, one end of the transmission shaft 146 is connected to the output shaft 116, and the other end of the transmission shaft 146 is used to connect to the wheel side transmission device. The fixing flange 108, the end cover 110 and the first seal 114 are sleeved on the transmission shaft 146. The second seal 118 is located between the output shaft 116 and the main reducer body 102, and is used to seal the main reducer body 102, prevent the lubricating oil inside the main reducer body 102 from flowing out, and also prevent water and other foreign matter from entering the main reducer body 102, so as to avoid damage to the internal structure of the reducer and contamination of the lubricating oil.

[0051] like Figure 4 As shown, further, the waterproof sealing structure 100 also includes a first bearing 120 and a first retaining spring 122. The first bearing 120 is disposed between the output shaft 116 and the main reducer body 102, and is located on the side of the second seal 118 away from the fixing flange 108. The first retaining spring 122 is disposed on the side of the first bearing 120 close to the second seal 118. The first bearing 120 can ensure the smooth rotation of the output shaft 116, and the first retaining spring 122 can limit the axial movement of the first bearing 120, thereby ensuring reliable power transmission connection, and the output shaft 116 and the main reducer body 102 can be rotationally sealed through the second seal 118.

[0052] like Figure 3 and Fig. 9 As shown, in other embodiments, the transmission shaft 146 includes a connecting flange 126 and a transmission shaft body 128. The fixing flange 108, the end cover 110 and the first sealing member 114 are sleeved on the connecting flange 126. The end cover 110 is sleeved on the connecting flange 126 to limit the axial movement of the connecting flange 126. The first sealing member 114 is used for waterproof sealing between the connecting flange 126 and the end cover 110. One end of the connecting flange 126 is connected to the output shaft 116, and the other end is detachably connected to the transmission shaft body 128. When the transmission shaft body 128 needs to be maintained or replaced, it is only necessary to disconnect the connection between the transmission shaft body 128 and the connecting flange 126, which is convenient for maintenance.

[0053] In the above embodiment, a third seal 112 is provided between the end cover 110 and the fixed flange 108, and the third seal 112 can fix and seal the end cover 110 and the fixed flange 108. One end of the fixed flange 108 is fixedly connected to one end of the main reducer body 102, and the main reducer body 102 and the housing 142 can be fixedly connected through the fixed flange 108.

[0054] like Figure 7 As shown, in some embodiments, the waterproof sealing structure 100 also includes a second bearing 130, an inner retaining ring 132 and an outer retaining ring 134. The second bearing 130 can support the output component 106 to rotate smoothly, and the inner retaining ring 132 and the outer retaining ring 134 can limit the axial movement of the output component 106 and the second bearing 130 to ensure reliable power transmission connection.

[0055] like Figure 8 As shown, in other embodiments, the waterproof sealing structure 100 further includes a second bearing 130, a locking piece 136, a nut 138 and an outer retaining ring 134. The second bearing 130 can support the output assembly 106 to rotate smoothly, and the locking piece 136 and the nut 138 fix the output assembly 106 and the end cover 110. The connecting flange 126 can be provided with a slot required for installing the locking piece 136 and a threaded section required for installing the nut 138. The locking piece 136, the nut 138 and the outer retaining ring 134 can limit the axial movement of the output assembly 106 and the second bearing 130, thereby ensuring a reliable power transmission connection.

[0056] like Figure 7 , Fig.10 As shown, in the above embodiment, the waterproof sealing structure 100 also includes a dustproof member 140. Between the output assembly 106 and the end cover 110, a rotating dustproof structure is formed by the dustproof member 140 to prevent dust from entering the installation area of ​​the first sealing member 114 and preventing dust from affecting the sealing effect of the first sealing member 114.

[0057] like Figure 3 As shown, in some embodiments, the waterproof sealing structure 100 further includes a housing 142 and a fourth sealing member 124. The housing 142 is fixedly connected to the fixing flange 108, and the fourth sealing member 124 is located between the housing 142 and the fixing flange 108, and is used to seal the housing 142 to prevent water outside the housing 142 from entering the inside of the housing 142. The end cover 110 and the fixing flange 108 are connected by bolts or the like, which is convenient for quick disassembly and assembly. When the first sealing member 114 needs to be replaced, it is only necessary to disassemble the fixed connection between the end cover 110 and the fixing flange 108, and the first sealing member 114 can be replaced outside the housing 142, which is convenient and quick to maintain.

[0058] like Fig.11 As shown, in other embodiments, the waterproof sealing structure 100 also includes a shell 142 and a fourth sealing member 124. The shell 142 is fixedly connected to the end cover 110. The fourth sealing member 124 is located between the shell 142 and the end cover 110 and is used to seal the shell 142 to prevent water outside the shell 142 from entering the inside of the shell 142.

[0059] Furthermore, the housing 142 is fixedly connected to the fixing flange 108. The fixing flange 108, the housing 142 and the end cover 110 can be fixed at the same time, so that the connection between the fixing flange 108, the end cover 110 and the housing 142 can be strengthened.

[0060] like Fig.12 As shown, a vehicle 10 proposed according to an embodiment of the present application includes an engine 144 and a waterproof sealing structure 100 as described in any of the above embodiments, and the engine 144 is disposed in the waterproof sealing structure.

[0061] The vehicle 10 provided by the present application includes an engine 144 and a waterproof sealing structure 100 as in any of the above embodiments, and thus has all the beneficial effects of the waterproof sealing structure 100 as in any of the above embodiments, which will not be described in detail herein. The engine 144 is disposed in the waterproof sealing structure, which can meet the waterproof requirements of the vehicle 10 for wading and traveling on water. Among them, the vehicle 10 includes a special vehicle and an amphibious vehicle.

[0062] like Figures 1 to 11 As shown, an amphibious vehicle according to a specific embodiment of the present application includes a waterproof sealing structure 100, which includes a main reducer body 102, an output gear 104, an output shaft 116, an end cover 110, a first retaining spring 122, a first bearing 120, a second seal 118, a fixing flange 108, a main reducer connecting end, a flange housing 142, a mounting hole, a vehicle body connecting end, an end cover 110, a third seal 112, a locking plate 136, a nut 138, an inner retaining ring 132, a second bearing 130, an outer retaining ring 134, a first seal 114, an end cover 110 flange, a connecting flange 126, a dustproof member 140, a connecting spline, a transmission shaft 146 connecting flange 126, a groove, a threaded section, a fourth seal 124, a housing 142, a transmission shaft body 128, a transmission shaft 146 input end and a transmission shaft 146 output.

[0063] Implementation A:

[0064] like Figure 3 As shown, the output gear 104 of the main reducer body 102 is meshed with the output shaft 116 via a spline. The structural feature of the output shaft 116 is that one end is an internal spline and the other end is an external spline, wherein: one end of the external spline meshes with the output gear 104, and one end of the internal spline is used to mesh with the connecting spline of the connecting flange 126.

[0065] like Figure 5 , Figure 6As shown, the first bearing 120 can ensure the smooth rotation of the output shaft 116. The first retaining spring 122 is used to limit the outward movement of the first bearing 120. The second seal 118 is used to prevent the lubricating oil inside the main reducer body 102 from flowing out, and also prevent water and other foreign matter from entering the main reducer body 102, thereby avoiding damage to the internal structure and contamination of the lubricating oil.

[0066] The vehicle body connection end is fixedly connected to the shell 142 , and the end surface thereof can be sealed by means of the fourth sealing member 124 to prevent water outside the shell 142 from entering the inside of the shell 142 .

[0067] The end cover 110 flange of the end cover 110 is connected to the fixed flange 108 by bolts or other means, which is convenient for quick disassembly and assembly. The third sealing member 112 is placed on the circumference of one side of the end cover 110 flange, mainly used for sealing with the inner end surface of the fixed flange 108.

[0068] like Figure 7 , Figure 8 As shown, the end cover 110 can have a variety of structures for limiting the axial movement of the connecting flange 126, including using an inner retaining ring 132 and an outer retaining ring 134, or using a locking plate 136, a nut 138 and an outer retaining ring 134.

[0069] When the locking plate 136, nut 138 and outer retaining ring 134 structure is adopted, the locking plate 136 and nut 138 rotationally fix the connecting flange 126 on the end cover 110. In order to ensure the reliability of the rotationally fixed connection, a slot required for installing the locking plate 136 and a threaded section required for installing the nut 138 may be provided on the connecting flange 126.

[0070] The outer retaining ring 134 is also used to limit the axial movement of the second bearing 130. The first sealing member 114 is used to provide a waterproof seal between the connecting flange 126 and the end cover 110. The number of the first sealing members 114 is not limited, and the structural form is not limited.

[0071] The dustproof member 140 of the connecting flange 126 is installed between the connecting flange 126 and the end cover 110 to prevent dust from entering the installation area of ​​the first seal 114. The connecting spline is used to mesh with the output shaft 116. The transmission shaft 146 connecting flange 126 is bolted and fixedly connected to the transmission shaft 146 input end of the transmission shaft body 128, and the transmission shaft 146 output is used to connect with the wheel side transmission device.

[0072] Through the above structure, reliable power transmission connection can be achieved, and the non-rotational freedom of the two power transmission elements, the output shaft 116 and the connecting flange 126, is limited, that is, the above two transmission elements have no other freedom except rotation. The output shaft 116 moves toward the inside of the main reducer body 102 and is limited by the first bearing 120. It moves toward the outside of the main reducer body 102 and is limited by the connecting flange 126. The axial movement of the connecting flange 126 is also limited.

[0073] Through the above structure, structural waterproofing can be achieved. A rotating waterproof sealing structure 100 is formed between the main reducer body 102 and the output shaft 116 through the second seal 118. A rotating waterproof sealing structure 100 is formed between the connecting flange 126 and the end cover 110 through the first seal 114, and a rotating dustproof structure is formed through the dustproof member 140. The fixed connection between the end cover 110 and the fixed flange 108 is achieved through the third seal 112. The fixed connection between the fixed flange 108 and the housing 142 is achieved through the fourth seal 124.

[0074] The above structure facilitates maintenance. When the transmission shaft body 128 needs to be maintained or replaced, it is only necessary to disconnect the transmission shaft body 128 from the connecting flange 126. When the first sealing member 114 needs to be replaced, it is only necessary to dismantle the fixed connection between the end cover 110 and the fixing flange 108, and then replace the sealing ring outside the housing 142.

[0075] Implementation method B:

[0076] like Figure 2 As shown, the original connecting flange 126 is removed, and the structural features of the connecting flange 126 are transferred to the transmission shaft 146. When the transmission shaft 146 is disassembled, the end cover 110 and the transmission shaft 146 need to be removed together.

[0077] Implementation method C:

[0078] like Figure 1 As shown, based on solution B, the original output, the first retaining spring 122, the first bearing 120 and the second seal 118 are cancelled.

[0079] One end of the output assembly 106 is directly spline-engaged with the output gear 104 of the main reducer body 102. When the output assembly 106 is disassembled, the end cover 110 and the output assembly 106 need to be removed together.

[0080] Implementation method D:

[0081] like Fig.11 As shown, implementation mode D is expanded relative to implementation mode A, and the technical features in implementation modes B and C can be added on the basis of implementation mode D.

[0082] Embodiment D changes the fixing method of the end cover 110. The end cover 110 can be fixed to the housing 142 and sealed using the fourth sealing member 124. Of course, the end cover 110 can be fixed to the fixing flange 108 and the housing 142 at the same time.

[0083] In summary, the beneficial effects of the embodiments of the present application are:

[0084] 1. This technical solution can achieve motion sealing of transmission components of amphibious vehicles.

[0085] 2. This technical solution is easy to maintain. When the transmission shaft body 128 needs to be maintained or replaced, it is only necessary to disconnect the transmission shaft body 128 from the connecting flange 126. When the first sealing member 114 needs to be replaced, it is only necessary to dismantle the fixed connection between the end cover 110 and the fixing flange 108, and then replace the sealing ring outside the housing 142.

[0086] 3. Lightweight design: The implementation case in Implementation Plan C is the lightest and can meet the weight reduction requirements of amphibious vehicles.

[0087] In this application, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise expressly defined. Terms such as "installed", "connected", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0088] In the description of the present application, it should be understood that the terms "upper", "lower", "rear", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be understood as a limitation on the present application.

[0089] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0090] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A waterproof sealing structure, characterized in that: include: A main reducer comprises a main reducer body (102) and a fixing flange (108), wherein the main reducer body (102) comprises an output gear (104); An output assembly (106) cooperates with the output gear (104), and the output assembly (106) is used to output power; an end cover (110) sleeved on the output assembly (106) and located on a side of the fixed flange (108) away from the main reducer body (102); a portion of the end cover (110) extends into the fixed flange (108); the end cover (110) is fixedly arranged, and the end cover (110) is used to limit the axial movement of the output assembly (106); A first sealing member (114) is sleeved on the output assembly (106) and is located between the output assembly (106) and the end cover (110). The first sealing member (114) is used for sealing between the output assembly (106) and the end cover (110).

2. The waterproof sealing structure according to claim 1, characterized in that: The output component comprises: An output shaft (116), the output shaft (116) cooperates with the output gear (104); A second sealing member (118) is sleeved on the output shaft (116) and is located between the output shaft (116) and the main reducer body (102), wherein the second sealing member (118) is used to seal the main reducer; A transmission shaft (146), one end of which is connected to the output shaft (116), and the fixing flange (108), the end cover (110) and the first sealing member (114) are sleeved on the transmission shaft (146).

3. The waterproof sealing structure according to claim 2, characterized in that: The waterproof sealing structure also includes: A first bearing (120) is disposed between the output shaft (116) and the main reducer body (102), and is located on a side of the second sealing member (118) away from the fixing flange (108); A first retaining spring (122) is disposed on a side of the first bearing (120) close to the second sealing member (118), and the first retaining spring (122) is used to limit axial movement of the first bearing (120).

4. The waterproof sealing structure according to claim 3, characterized in that: The transmission shaft comprises: a connecting flange (126), one end of the connecting flange (126) being connected to the output shaft (116), and the fixing flange (108), the end cover (110) and the first sealing member (114) being sleeved on the connecting flange (126); A transmission shaft body (128), one end of which is detachably connected to the other end of the connecting flange (126).

5. The waterproof sealing structure according to any one of claims 1 to 4, characterized in that: The waterproof sealing structure also includes: a third sealing member (112), which is sleeved on the end cover (110) and located between the end cover (110) and the fixed flange (108), and the third sealing member (112) is used for sealing between the end cover (110) and the fixed flange (108); and / or One end of the fixing flange (108) is fixedly connected to one end of the main reducer body (102).

6. The waterproof sealing structure according to claim 5, characterized in that: The waterproof sealing structure further comprises a second bearing (130), an inner retaining ring (132) and an outer retaining ring (134), wherein the second bearing (130) is located between the end cover (110) and the output assembly (106), the inner retaining ring (132) is located on a side of the second bearing (130) close to the main reducer body (102), and the outer retaining ring (134) is located on a side of the second bearing (130) away from the main reducer body (102); or The waterproof sealing structure also includes a second bearing (130), a locking plate (136), a nut (138) and an outer retaining ring (134); the locking plate (136) and the nut (138) are located on a side of the second bearing (130) close to the main reducer body (102); and the outer retaining ring (134) is located on a side of the second bearing (130) away from the main reducer body (102).

7. The waterproof sealing structure according to claim 6, characterized in that: The waterproof sealing structure also includes: A dustproof member (140) is located between the output assembly (106) and the end cover (110), and the dustproof member (140) is used to prevent dust from entering the installation area of ​​the first sealing member (114).

8. The waterproof sealing structure according to claim 7, characterized in that: The end cover (110) is detachably connected to the fixing flange (108); The waterproof sealing structure also includes: A housing (142), wherein the housing (142) is fixedly connected to the fixing flange (108); A fourth sealing member (124) is located between the housing (142) and the fixing flange (108), and the fourth sealing member (124) is used to seal the housing (142).

9. The waterproof sealing structure according to claim 7, characterized in that: The waterproof sealing structure also includes: A housing (142) fixedly connected to the end cover (110); a fourth sealing member (124), located between the housing (142) and the end cover (110), the fourth sealing member (124) being used to seal the housing (142); or A housing (142) fixedly connected to the end cover (110) and fixedly connected to the fixing flange (108); A fourth sealing member (124) is located between the housing (142) and the end cover (110), and the fourth sealing member (124) is used to seal the housing (142).

10. A vehicle, characterized in that: include: Engine (144); The waterproof sealing structure according to any one of claims 1 to 9, wherein the engine (144) is disposed inside the waterproof sealing structure.

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